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diff --git a/VsExtension/Logs/debug3d-web-client-wasm.md-2026-05-22T07-03-14-095Z.ndjson b/VsExtension/Logs/debug3d-web-client-wasm.md-2026-05-22T07-03-14-095Z.ndjson
new file mode 100644
index 0000000..761456a
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+++ b/VsExtension/Logs/debug3d-web-client-wasm.md-2026-05-22T07-03-14-095Z.ndjson
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+      "category": "machine",
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+      "category": "machine",
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+      "category": "machine",
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+      "category": "published",
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+      "path": "machine/phase-inputs/business__business-overview.phase-inputs.json",
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+      "category": "machine",
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+      "category": "machine",
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+      "category": "machine",
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+    },
+    {
+      "path": "machine/phase-inputs/flows__realtime-and-sync.phase-inputs.json",
+      "category": "machine",
+      "kind": "machine-json"
+    },
+    {
+      "path": "machine/phase-inputs/flows__security-identity-auth.phase-inputs.json",
+      "category": "machine",
+      "kind": "machine-json"
+    },
+    {
+      "path": "machine/phase-inputs/flows__web-client-wasm.phase-inputs.json",
+      "category": "machine",
+      "kind": "machine-json"
+    },
+    {
+      "path": "machine/run-validation.json",
+      "category": "machine",
+      "kind": "machine-json"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/src/.documentation/business/business-overview.md b/src/.documentation/business/business-overview.md
new file mode 100644
index 0000000..4656031
--- /dev/null
+++ b/src/.documentation/business/business-overview.md
@@ -0,0 +1,341 @@
+## Business Overview
+
+Business Overview centers on account, ai token usage / limits, ai tokens and currently highlights Authentication (Login/Register) Flow as the most representative business flow.
+
+### Business Summary
+
+- Domains: 37
+- Capabilities: 6
+- Flows: 6
+- Source summaries used: 15
+- Technical flow inputs used: 6
+
+### Business Domains
+
+- **account** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **ai token usage / limits** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **ai tokens** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **ai tokens (aitokensused, aitokenlimit)** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **auth** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **authentication** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **author** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **authorization policy** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **command** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **cookie based sign in** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **ebook** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **ebook / epub ingestion** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **embedding** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **external (google) login** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **identity (authenticationstateprovider)** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **jwt** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **knowledge (knowledge service, graph, summary)** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **knowledgegraph / knowledgecoordinator** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **nexususer (identity)** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **pro subscription** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **query** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **quiz state** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **reader navigation** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **real time sync/broadcast** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **result** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **result<tresponse>** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **secure client storage** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **session/cookie sign in orchestration** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **subscription / plan** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **subscriptionplan** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **sync** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **tenantid** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **theme & focus mode** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **token refresh** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **user** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **user registration** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+- **userprofile** (high confidence): Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.
+
+### Business Capabilities
+
+- **Authentication (Login/Register) Flow** (high confidence): Authentication (Login/Register) Flow coordinates 5 business-relevant steps beginning at NexusReader.UI.Shared/Pages/Account/Login.razor. Domains: account, ai token usage / limits, ai tokens, ai tokens (aitokensused, aitokenlimit), auth, authentication, author, authorization policy, command, cookie based sign in, ebook, ebook / epub ingestion, embedding, external (google) login, identity (authenticationstateprovider), jwt, knowledge (knowledge service, graph, summary), knowledgegraph / knowledgecoordinator, nexususer (identity), pro subscription, query, quiz state, reader navigation, real time sync/broadcast, result, result<tresponse>, secure client storage, session/cookie sign in orchestration, subscription / plan, subscriptionplan, sync, tenantid, theme & focus mode, token refresh, user, user registration, userprofile. Entrypoints: NexusReader.UI.Shared/Pages/Account/Login.razor, NexusReader.Web.Client/Program.cs, NexusReader.Maui/MauiProgram.cs.
+- **HTTP Request + Token Refresh Flow** (high confidence): HTTP Request + Token Refresh Flow coordinates 4 business-relevant steps beginning at NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs. Domains: account, ai token usage / limits, ai tokens, ai tokens (aitokensused, aitokenlimit), auth, authentication, author, authorization policy, command, cookie based sign in, ebook, ebook / epub ingestion, embedding, external (google) login, identity (authenticationstateprovider), jwt, knowledge (knowledge service, graph, summary), knowledgegraph / knowledgecoordinator, nexususer (identity), pro subscription, query, quiz state, reader navigation, real time sync/broadcast, result, result<tresponse>, secure client storage, session/cookie sign in orchestration, subscription / plan, subscriptionplan, sync, tenantid, theme & focus mode, token refresh, user, user registration, userprofile. Entrypoints: NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs, NexusReader.Web.Client/Program.cs, NexusReader.Maui/MauiProgram.cs.
+- **Knowledge Query API Flow** (high confidence): Knowledge Query API Flow coordinates 4 business-relevant steps beginning at NexusReader.Web/Program.cs. Domains: account, ai token usage / limits, ai tokens, ai tokens (aitokensused, aitokenlimit), auth, authentication, author, authorization policy, command, cookie based sign in, ebook, ebook / epub ingestion, embedding, external (google) login, identity (authenticationstateprovider), jwt, knowledge (knowledge service, graph, summary), knowledgegraph / knowledgecoordinator, nexususer (identity), pro subscription, query, quiz state, reader navigation, real time sync/broadcast, result, result<tresponse>, secure client storage, session/cookie sign in orchestration, subscription / plan, subscriptionplan, sync, tenantid, theme & focus mode, token refresh, user, user registration, userprofile. Entrypoints: NexusReader.Web/Program.cs, NexusReader.Web.Client/Program.cs, NexusReader.Maui/MauiProgram.cs.
+- **Program (top level)** (high confidence): Program (top level) coordinates 8 business-relevant steps beginning at NexusReader.Web/Program.cs. Domains: account, ai token usage / limits, ai tokens, ai tokens (aitokensused, aitokenlimit), auth, authentication, author, authorization policy, command, cookie based sign in, ebook, ebook / epub ingestion, embedding, external (google) login, identity (authenticationstateprovider), jwt, knowledge (knowledge service, graph, summary), knowledgegraph / knowledgecoordinator, nexususer (identity), pro subscription, query, quiz state, reader navigation, real time sync/broadcast, result, result<tresponse>, secure client storage, session/cookie sign in orchestration, subscription / plan, subscriptionplan, sync, tenantid, theme & focus mode, token refresh, user, user registration, userprofile. Entrypoints: NexusReader.Web/Program.cs, NexusReader.Web.Client/Program.cs, NexusReader.Maui/MauiProgram.cs.
+- **Ensure Database Initialized** (high confidence): Ensure Database Initialized coordinates 4 business-relevant steps beginning at NexusReader.Web/Program.cs. Domains: account, ai token usage / limits, ai tokens, ai tokens (aitokensused, aitokenlimit), auth, authentication, author, authorization policy, command, cookie based sign in, ebook, ebook / epub ingestion, embedding, external (google) login, identity (authenticationstateprovider), jwt, knowledge (knowledge service, graph, summary), knowledgegraph / knowledgecoordinator, nexususer (identity), pro subscription, query, quiz state, reader navigation, real time sync/broadcast, result, result<tresponse>, secure client storage, session/cookie sign in orchestration, subscription / plan, subscriptionplan, sync, tenantid, theme & focus mode, token refresh, user, user registration, userprofile. Entrypoints: NexusReader.Web/Program.cs, NexusReader.Web.Client/Program.cs, NexusReader.Maui/MauiProgram.cs.
+- **Handle Subscription Success** (high confidence): Handle Subscription Success coordinates 4 business-relevant steps beginning at NexusReader.Web/Program.cs. Domains: account, ai token usage / limits, ai tokens, ai tokens (aitokensused, aitokenlimit), auth, authentication, author, authorization policy, command, cookie based sign in, ebook, ebook / epub ingestion, embedding, external (google) login, identity (authenticationstateprovider), jwt, knowledge (knowledge service, graph, summary), knowledgegraph / knowledgecoordinator, nexususer (identity), pro subscription, query, quiz state, reader navigation, real time sync/broadcast, result, result<tresponse>, secure client storage, session/cookie sign in orchestration, subscription / plan, subscriptionplan, sync, tenantid, theme & focus mode, token refresh, user, user registration, userprofile. Entrypoints: NexusReader.Web/Program.cs, NexusReader.Web.Client/Program.cs, NexusReader.Maui/MauiProgram.cs.
+
+### Major Value Streams
+
+- **Authentication (Login/Register) Flow** (rank 1, score 0.86, high confidence): Authentication (Login/Register) Flow starts at NexusReader.UI.Shared/Pages/Account/Login.razor and follows 9 grounded steps: Enter Handle Login -> Falls back to alternate path -> Evaluates branch condition -> Reads repository or persistence state -> .... Domains: account, ai token usage / limits, ai tokens, ai tokens (aitokensused, aitokenlimit), auth, authentication, author, authorization policy, command, cookie based sign in, ebook, ebook / epub ingestion, embedding, external (google) login, identity (authenticationstateprovider), jwt, knowledge (knowledge service, graph, summary), knowledgegraph / knowledgecoordinator, nexususer (identity), pro subscription, query, quiz state, reader navigation, real time sync/broadcast, result, result<tresponse>, secure client storage, session/cookie sign in orchestration, subscription / plan, subscriptionplan, sync, tenantid, theme & focus mode, token refresh, user, user registration, userprofile.
+- **Ensure Database Initialized** (rank 2, score 0.86, high confidence): Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> .... Domains: account, ai token usage / limits, ai tokens, ai tokens (aitokensused, aitokenlimit), auth, authentication, author, authorization policy, command, cookie based sign in, ebook, ebook / epub ingestion, embedding, external (google) login, identity (authenticationstateprovider), jwt, knowledge (knowledge service, graph, summary), knowledgegraph / knowledgecoordinator, nexususer (identity), pro subscription, query, quiz state, reader navigation, real time sync/broadcast, result, result<tresponse>, secure client storage, session/cookie sign in orchestration, subscription / plan, subscriptionplan, sync, tenantid, theme & focus mode, token refresh, user, user registration, userprofile.
+- **Handle Subscription Success** (rank 3, score 0.86, high confidence): Handle Subscription Success starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> .... Domains: account, ai token usage / limits, ai tokens, ai tokens (aitokensused, aitokenlimit), auth, authentication, author, authorization policy, command, cookie based sign in, ebook, ebook / epub ingestion, embedding, external (google) login, identity (authenticationstateprovider), jwt, knowledge (knowledge service, graph, summary), knowledgegraph / knowledgecoordinator, nexususer (identity), pro subscription, query, quiz state, reader navigation, real time sync/broadcast, result, result<tresponse>, secure client storage, session/cookie sign in orchestration, subscription / plan, subscriptionplan, sync, tenantid, theme & focus mode, token refresh, user, user registration, userprofile.
+- **Knowledge Query API Flow** (rank 4, score 0.86, high confidence): Knowledge Query API Flow starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> .... Domains: account, ai token usage / limits, ai tokens, ai tokens (aitokensused, aitokenlimit), auth, authentication, author, authorization policy, command, cookie based sign in, ebook, ebook / epub ingestion, embedding, external (google) login, identity (authenticationstateprovider), jwt, knowledge (knowledge service, graph, summary), knowledgegraph / knowledgecoordinator, nexususer (identity), pro subscription, query, quiz state, reader navigation, real time sync/broadcast, result, result<tresponse>, secure client storage, session/cookie sign in orchestration, subscription / plan, subscriptionplan, sync, tenantid, theme & focus mode, token refresh, user, user registration, userprofile.
+- **Program (top level)** (rank 5, score 0.86, high confidence): Program (top level) starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> .... Domains: account, ai token usage / limits, ai tokens, ai tokens (aitokensused, aitokenlimit), auth, authentication, author, authorization policy, command, cookie based sign in, ebook, ebook / epub ingestion, embedding, external (google) login, identity (authenticationstateprovider), jwt, knowledge (knowledge service, graph, summary), knowledgegraph / knowledgecoordinator, nexususer (identity), pro subscription, query, quiz state, reader navigation, real time sync/broadcast, result, result<tresponse>, secure client storage, session/cookie sign in orchestration, subscription / plan, subscriptionplan, sync, tenantid, theme & focus mode, token refresh, user, user registration, userprofile.
+
+### Diagrams
+
+Business interpretation diagrams grounded in the selected evidence for this overview scope.
+
+#### Dependency and Model Map
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1["MauiProgram"]
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_type_nexusreader_maui_mauiprogram_cs_handlers_from_nexusreader_application_assembly_53[/"Handlers from NexusReader.Application assembly"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38[/"HttpClient (configured)"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28[/"MauiPlatformService"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_mauiprogram_10[/"MauiProgram"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29[/"MauiStorageService"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33[/"NexusAuthenticationStateProvider (via factory)"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_nexusreader_application_registrations_51[/"NexusReader.Application registrations"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1[/"ThemeService, FocusModeService, QuizStateService, ReaderNavigationService, KnowledgeGraphService, ReaderInteractionService, KnowledgeCoordinator, SyncService, IdentityService"/]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+    flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+    flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|MediatR handlers| flow_type_nexusreader_maui_mauiprogram_cs_handlers_from_nexusreader_application_assembly_53
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|HttpClient| flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|IPlatformService| flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|model MauiProgram| flow_type_nexusreader_maui_mauiprogram_cs_mauiprogram_10
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|INativeStorageService| flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|Microsoft.AspNetCore.Components.Authorization.AuthenticationStateProvider| flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|Application layer services extension| flow_type_nexusreader_maui_mauiprogram_cs_nexusreader_application_registrations_51
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|UI and app state services| flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    click flow_file_nexusreader_maui_mauiprogram_cs_file_1 href "vscode://file/NexusReader.Maui/MauiProgram.cs:1:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_mauiprogram_10 href "vscode://file/NexusReader.Maui/MauiProgram.cs:10:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28 href "vscode://file/NexusReader.Maui/MauiProgram.cs:28:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29 href "vscode://file/NexusReader.Maui/MauiProgram.cs:29:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32 href "vscode://file/NexusReader.Maui/MauiProgram.cs:32:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33 href "vscode://file/NexusReader.Maui/MauiProgram.cs:33:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38 href "vscode://file/NexusReader.Maui/MauiProgram.cs:38:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1 href "vscode://file/NexusReader.Maui/MauiProgram.cs:1:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_nexusreader_application_registrations_51 href "vscode://file/NexusReader.Maui/MauiProgram.cs:51:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_handlers_from_nexusreader_application_assembly_53 href "vscode://file/NexusReader.Maui/MauiProgram.cs:53:1" "Open source"
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+```
+
+This dependency-map view is included as a grounded technical anchor for the published business interpretation.
+
+#### Startup and Service Registration Flow
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    subgraph flow_1_nexusreader_web_client_program_cs["Program.cs"]
+    end
+    subgraph flow_2_nexusreader_maui_mauiprogram_cs["MauiProgram"]
+    end
+    subgraph Node_xref_business_overview_md_authentication_login_register_flow["Authentication (Login/Register) Flow"]
+    end
+    subgraph Node_xref_business_overview_md_http_request_token_refresh_flow["HTTP Request + Token Refresh Flow"]
+    end
+    subgraph Node_xref_business_overview_md_knowledge_query_api_flow["Knowledge Query API Flow"]
+    end
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1["MauiProgram"]
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_maui_mauiprogram_cs_create_and_build_mauiapp_16["Create and build MauiApp"]
+    flow_type_nexusreader_maui_mauiprogram_cs_handlers_from_nexusreader_application_assembly_53[/"Handlers from NexusReader.Application assembly"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38[/"HttpClient (configured)"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28[/"MauiPlatformService"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29[/"MauiStorageService"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33[/"NexusAuthenticationStateProvider (via factory)"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_nexusreader_application_registrations_51[/"NexusReader.Application registrations"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1[/"ThemeService, FocusModeService, QuizStateService, ReaderNavigationService, KnowledgeGraphService, ReaderInteractionService, KnowledgeCoordinator, SyncService, IdentityService"/]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|unknown| flow_method_nexusreader_maui_mauiprogram_cs_create_and_build_mauiapp_16
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|MediatR handlers| flow_type_nexusreader_maui_mauiprogram_cs_handlers_from_nexusreader_application_assembly_53
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|HttpClient| flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|IPlatformService| flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|INativeStorageService| flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|Microsoft.AspNetCore.Components.Authorization.AuthenticationStateProvider| flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|Application layer services extension| flow_type_nexusreader_maui_mauiprogram_cs_nexusreader_application_registrations_51
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|UI and app state services| flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    click flow_file_nexusreader_maui_mauiprogram_cs_file_1 href "vscode://file/NexusReader.Maui/MauiProgram.cs:1:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28 href "vscode://file/NexusReader.Maui/MauiProgram.cs:28:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29 href "vscode://file/NexusReader.Maui/MauiProgram.cs:29:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32 href "vscode://file/NexusReader.Maui/MauiProgram.cs:32:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33 href "vscode://file/NexusReader.Maui/MauiProgram.cs:33:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38 href "vscode://file/NexusReader.Maui/MauiProgram.cs:38:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1 href "vscode://file/NexusReader.Maui/MauiProgram.cs:1:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_nexusreader_application_registrations_51 href "vscode://file/NexusReader.Maui/MauiProgram.cs:51:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_handlers_from_nexusreader_application_assembly_53 href "vscode://file/NexusReader.Maui/MauiProgram.cs:53:1" "Open source"
+    click flow_method_nexusreader_maui_mauiprogram_cs_create_and_build_mauiapp_16 href "vscode://file/NexusReader.Maui/MauiProgram.cs:16:1" "Open source"
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+```
+
+This primary-runtime view is included as a grounded technical anchor for the published business interpretation.
+
+#### Program.cs Flow
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    subgraph flow_1_nexusreader_web_client_program_cs["Program.cs"]
+    end
+    subgraph flow_2_nexusreader_maui_mauiprogram_cs["MauiProgram"]
+    end
+    subgraph flow_0_nexusreader_web_program_cs["Program.cs"]
+    end
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_method_nexusreader_web_program_cs_program_top_level_29["Program (top-level)"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62{"Evaluates branch condition"}
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66{"Falls back to alternate path"}
+    flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125["Reads repository or persistence state"]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+    flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+    flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+    flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 -->|fallback| flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 -->|Reads repository or persistence state| flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|FindAuthorByNameAsync| flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|GetService| flow_method_nexusreader_web_client_program_cs_getservice_71
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|Program top-level startup| flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|unknown| flow_method_nexusreader_web_client_program_cs_run_wasm_host_59
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    flow_file_nexusreader_web_program_cs_file_1 -->|Program top-level| flow_method_nexusreader_web_program_cs_program_top_level_29
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 -->|Reads repository or persistence state| flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88
+    flow_method_nexusreader_web_client_program_cs_getservice_71 -->|returns null| flow_action_nexusreader_web_client_program_cs_getservice_return_71_71
+    flow_method_nexusreader_web_program_cs_program_top_level_29 -->|true / false| flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_run_wasm_host_59 href "vscode://file/NexusReader.Web.Client/Program.cs:59:1" "Open source"
+    click flow_file_nexusreader_web_program_cs_file_1 href "vscode://file/NexusReader.Web/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_program_cs_program_top_level_29 href "vscode://file/NexusReader.Web/Program.cs:29:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 href "vscode://file/NexusReader.Web/Program.cs:62:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 href "vscode://file/NexusReader.Web/Program.cs:66:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125 href "vscode://file/NexusReader.Web/Program.cs:125:1" "Open source"
+```
+
+This primary-runtime view is included as a grounded technical anchor for the published business interpretation.
+
+
+### Unknowns and Gaps
+
+- Business flow HTTP Request + Token Refresh Flow is ambiguous relative to another candidate flow in the same scope.
+- Business flow Knowledge Query API Flow is ambiguous relative to another candidate flow in the same scope.
+
+### Key Files
+
+- NexusReader.Maui/MauiProgram.cs
+- NexusReader.Web.Client/Program.cs
+- NexusReader.Web/Program.cs
+- NexusReader.Application/DTOs/User/AuthorDto.cs
+- NexusReader.Application/Security/Authorization/ProUserHandler.cs
+- NexusReader.Application/Security/Authorization/ProUserRequirement.cs
+- NexusReader.Domain/Entities/Author.cs
+- NexusReader.UI.Shared/Layout/AuthLayout.razor
+
+<div hidden data-ai-mermaid-metadata-appendix>
+<script type="application/json" data-ai-mermaid-metadata="0" data-ai-mermaid-diagram-id="dependency_map_graph">{"edges":[{"id":"edge_flow_file_nexusreader_maui_mauiprogram_cs_file_1_flow_type_nexusreader_maui_mauiprogram_cs_mauiprogram_10_defines_type_10","from":"flow_file_nexusreader_maui_mauiprogram_cs_file_1","to":"flow_type_nexusreader_maui_mauiprogram_cs_mauiprogram_10","relation":"transforms","semanticLabel":"model MauiProgram","payload":{"outputSummary":"Static host for MAUI app startup logic and DI composition.","expandedLabel":"defines-type"}},{"id":"edge_flow_file_nexusreader_maui_mauiprogram_cs_file_1_flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28_registers_service_28","from":"flow_file_nexusreader_maui_mauiprogram_cs_file_1","to":"flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28","relation":"uses","semanticLabel":"IPlatformService","payload":{"outputSummary":"Registers platform abstraction implemented for MAUI","expandedLabel":"registers-service"}},{"id":"edge_flow_file_nexusreader_maui_mauiprogram_cs_file_1_flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29_registers_service_29","from":"flow_file_nexusreader_maui_mauiprogram_cs_file_1","to":"flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29","relation":"uses","semanticLabel":"INativeStorageService","payload":{"outputSummary":"Registers platform native storage implementation","expandedLabel":"registers-service"}},{"id":"edge_flow_file_nexusreader_maui_mauiprogram_cs_file_1_flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32_registers_service_32","from":"flow_file_nexusreader_maui_mauiprogram_cs_file_1","to":"flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32","relation":"uses","semanticLabel":"NexusAuthenticationStateProvider","payload":{"outputSummary":"Concrete auth state provider registered","expandedLabel":"registers-service"}},{"id":"edge_flow_file_nexusreader_maui_mauiprogram_cs_file_1_flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33_registers_service_33","from":"flow_file_nexusreader_maui_mauiprogram_cs_file_1","to":"flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33","relation":"uses","semanticLabel":"Microsoft.AspNetCore.Components.Authorization.AuthenticationStateProvider","payload":{"outputSummary":"Maps framework AuthenticationStateProvider to NexusAuthenticationStateProvider via service locator factory","expandedLabel":"registers-service"}},{"id":"edge_flow_file_nexusreader_maui_mauiprogram_cs_file_1_flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38_registers_service_38","from":"flow_file_nexusreader_maui_mauiprogram_cs_file_1","to":"flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38","relation":"uses","semanticLabel":"HttpClient","payload":{"outputSummary":"Registers HttpClient with BaseAddress = http://10.0.2.2:5000 (Android emulator to local server)","expandedLabel":"registers-service"}},{"id":"edge_flow_file_nexusreader_maui_mauiprogram_cs_file_1_flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1_registers_service_1","from":"flow_file_nexusreader_maui_mauiprogram_cs_file_1","to":"flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1","relation":"uses","semanticLabel":"UI and app state services","payload":{"outputSummary":"Registers multiple scoped services handling UI state, knowledge coordination, sync and identity","expandedLabel":"registers-service"}},{"id":"edge_flow_file_nexusreader_maui_mauiprogram_cs_file_1_flow_type_nexusreader_maui_mauiprogram_cs_nexusreader_application_registrations_51_registers_service_51","from":"flow_file_nexusreader_maui_mauiprogram_cs_file_1","to":"flow_type_nexusreader_maui_mauiprogram_cs_nexusreader_application_registrations_51","relation":"uses","semanticLabel":"Application layer services (extension)","payload":{"outputSummary":"Calls AddApplication() extension to register Application-layer services","expandedLabel":"registers-service"}},{"id":"edge_flow_file_nexusreader_maui_mauiprogram_cs_file_1_flow_type_nexusreader_maui_mauiprogram_cs_handlers_from_nexusreader_application_assembly_53_registers_service_53","from":"flow_file_nexusreader_maui_mauiprogram_cs_file_1","to":"flow_type_nexusreader_maui_mauiprogram_cs_handlers_from_nexusreader_application_assembly_53","relation":"uses","semanticLabel":"MediatR handlers","payload":{"outputSummary":"Registers MediatR and scans NexusReader.Application assembly for handlers","expandedLabel":"registers-service"}},{"id":"edge_flow_file_nexusreader_web_client_program_cs_file_1_flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61_defines_type_61","from":"flow_file_nexusreader_web_client_program_cs_file_1","to":"flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61","relation":"transforms","semanticLabel":"model ThrowingDbContextFactory","payload":{"outputSummary":"IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.","expandedLabel":"defines-type"}},{"id":"edge_flow_file_nexusreader_web_client_program_cs_file_1_flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66_defines_type_66","from":"flow_file_nexusreader_web_client_program_cs_file_1","to":"flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66","relation":"transforms","semanticLabel":"model ThrowingEmbeddingGenerator","payload":{"outputSummary":"IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).","expandedLabel":"defines-type"}},{"id":"edge_flow_file_nexusreader_web_client_program_cs_file_1_flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74_defines_type_74","from":"flow_file_nexusreader_web_client_program_cs_file_1","to":"flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74","relation":"transforms","semanticLabel":"model ThrowingBookStorageService","payload":{"outputSummary":"IBookStorageService implementation that throws for all file storage operations in WASM.","expandedLabel":"defines-type"}},{"id":"edge_flow_file_nexusreader_web_client_program_cs_file_1_flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84_defines_type_84","from":"flow_file_nexusreader_web_client_program_cs_file_1","to":"flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84","relation":"transforms","semanticLabel":"model ThrowingEbookRepository","payload":{"outputSummary":"IEbookRepository implementation that throws for all repository operations in WASM.","expandedLabel":"defines-type"}},{"id":"edge_flow_file_nexusreader_web_client_program_cs_file_1_flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94_defines_type_94","from":"flow_file_nexusreader_web_client_program_cs_file_1","to":"flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94","relation":"transforms","semanticLabel":"model ThrowingSyncBroadcaster","payload":{"outputSummary":"ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.","expandedLabel":"defines-type"}},{"id":"edge_flow_file_nexusreader_web_client_program_cs_file_1_flow_type_nexusreader_web_client_program_cs_webplatformservice_18_registers_service_18","from":"flow_file_nexusreader_web_client_program_cs_file_1","to":"flow_type_nexusreader_web_client_program_cs_webplatformservice_18","relation":"uses","semanticLabel":"IPlatformService","payload":{"outputSummary":"Registers platform abstraction for browser.","expandedLabel":"registers-service"}},{"id":"edge_flow_file_nexusreader_web_client_program_cs_file_1_flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33_registers_service_33","from":"flow_file_nexusreader_web_client_program_cs_file_1","to":"flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33","relation":"uses","semanticLabel":"NexusAuthenticationStateProvider","payload":{"outputSummary":"Authentication state provider and wiring to AuthenticationStateProvider.","expandedLabel":"registers-service"}},{"id":"edge_flow_file_nexusreader_web_client_program_cs_file_1_flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38_registers_service_38","from":"flow_file_nexusreader_web_client_program_cs_file_1","to":"flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38","relation":"uses","semanticLabel":"IKnowledgeService","payload":{"outputSummary":"Registers a WASM-specific knowledge service implementation.","expandedLabel":"registers-service"}},{"id":"edge_flow_file_nexusreader_web_client_program_cs_file_1_flow_type_nexusreader_web_client_program_cs_configured_httpclient_40_registers_service_40","from":"flow_file_nexusreader_web_client_program_cs_file_1","to":"flow_type_nexusreader_web_client_program_cs_configured_httpclient_40","relation":"uses","semanticLabel":"HttpClient (named 'NexusAPI')","payload":{"outputSummary":"Adds named HTTP client with base address and authentication header handler.","expandedLabel":"registers-service"}}],"nodes":[{"id":"flow_file_nexusreader_maui_mauiprogram_cs_file_1","kind":"service","label":"MauiProgram","sourcePath":"NexusReader.Maui/MauiProgram.cs","sourceLine":1},{"id":"flow_type_nexusreader_maui_mauiprogram_cs_mauiprogram_10","kind":"dependency","label":"MauiProgram","sourcePath":"NexusReader.Maui/MauiProgram.cs","sourceLine":10},{"id":"flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28","kind":"dependency","label":"MauiPlatformService","sourcePath":"NexusReader.Maui/MauiProgram.cs","sourceLine":28},{"id":"flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29","kind":"dependency","label":"MauiStorageService","sourcePath":"NexusReader.Maui/MauiProgram.cs","sourceLine":29},{"id":"flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32","kind":"dependency","label":"NexusAuthenticationStateProvider","sourcePath":"NexusReader.Maui/MauiProgram.cs","sourceLine":32},{"id":"flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33","kind":"dependency","label":"NexusAuthenticationStateProvider 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+</div>
+
+---
+
+## See Also
+
+- [Top Business Flows](top-business-flows.md)
+- [Security, Identity and Authorization](../flows/security-identity-auth.md)
+- [Infrastructure Services: Knowledge, AI, Billing, Storage, Epub](../domains/infrastructure-services.md)
+- [Project Overview and Architecture](../collections/overview.md)
diff --git a/src/.documentation/business/business-overview.meta.json b/src/.documentation/business/business-overview.meta.json
new file mode 100644
index 0000000..d43e5b5
--- /dev/null
+++ b/src/.documentation/business/business-overview.meta.json
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+            "label": "Shape",
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+            "key": "source",
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+          "csharp",
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+          "Host/Startup bootstrap",
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+            "key": "source",
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+          "NexusReader.Web.Client/Program.cs"
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Shape",
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+            "value": "1"
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+            "value": "string required"
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+          {
+            "label": "Domain",
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+        ],
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+          {
+            "key": "source",
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+        ],
+        "confidence": "high",
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
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+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+          {
+            "label": "Shape",
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+            "label": "Fields",
+            "value": "1"
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+            "label": "ErrorMessage",
+            "value": "string required"
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+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
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+          {
+            "key": "source",
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+            "path": "NexusReader.Web.Client/Program.cs",
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+            "tooltip": "Open source"
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+        ],
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
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+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+          {
+            "label": "Shape",
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+            "label": "Fields",
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+        ],
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+            "key": "source",
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+            "path": "NexusReader.Web.Client/Program.cs",
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+            "tooltip": "Open source"
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+        ],
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+      },
+      {
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+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
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+          "csharp",
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+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+        ],
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+      {
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+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
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+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Domain",
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+        ],
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+            "key": "source",
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+        ],
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+        "sourceTargetKind": "dependency",
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+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
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+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
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+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+          {
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+        ],
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+          {
+            "key": "source",
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+        ],
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
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+        "diagramId": "dependency_map_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
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+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Domain",
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+            "key": "source",
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+            "tooltip": "Open source"
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+        ],
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
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+      },
+      {
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+          "csharp",
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+          "Composition Root",
+          "Service Registration"
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+            "label": "Owner",
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+            "label": "Fields",
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+          {
+            "label": "Domain",
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+        ],
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+        "sourceTargetKind": "dependency",
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+      },
+      {
+        "id": "flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28",
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+        "summary": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging.",
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+        "technologyHints": [
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+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
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+          {
+            "label": "Owner",
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+          {
+            "label": "Domain",
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+        ],
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+            "key": "source",
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+        ],
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Maui/MauiProgram.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29",
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+        "nodeRole": "dependency",
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+        "architecturalLayer": "backend",
+        "summary": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging.",
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+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
+        ],
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+            "label": "Owner",
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+          {
+            "label": "Domain",
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+            "key": "source",
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+      },
+      {
+        "id": "flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32",
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+        "architecturalLayer": "backend",
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+        "technologyHints": [
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+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
+        ],
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+          {
+            "label": "Owner",
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+          },
+          {
+            "label": "Domain",
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+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Maui/MauiProgram.cs:32:1",
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+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
+        "label": "Program (top-level startup)",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:15:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 15,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 15,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "responsibility": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:125:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 125,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 125,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
+        "label": "Program (top-level startup)",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:15:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 15,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 15,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "responsibility": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:125:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 125,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 125,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_126_126",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "context.Request.Path.StartsWithSegments(\"/identity\") ||",
+        "responsibility": "context.Request.Path.StartsWithSegments(\"/identity\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:126:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 126,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 126,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_dependencyinjection_cs_addapplication_8",
+        "label": "AddApplication",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Extension method that registers application mapping configuration and MediatR handlers, returning the IServiceCollection for chaining.",
+        "responsibility": "Extension method that registers application mapping configuration and MediatR handlers, returning the IServiceCollection for chaining.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection extension",
+          "Service registration"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "DependencyInjection"
+          },
+          {
+            "label": "Signature",
+            "value": "(services: IServiceCollection) -> IServiceCollection"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register mapping configuration @L10"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register MediatR handlers @L11"
+          },
+          {
+            "label": "Action:return",
+            "value": "Return IServiceCollection @L13"
+          },
+          {
+            "label": "Action:return",
+            "value": "Returns result @L13"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/DependencyInjection.cs:8:1",
+            "path": "NexusReader.Application/DependencyInjection.cs",
+            "line": 8,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DependencyInjection.cs",
+        "sourceLine": 8,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/DependencyInjection.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_31",
+        "label": "AddInfrastructure",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Configures and registers infrastructure services and external clients (DBs, AI, vector/graph stores, job processing, authorization, and app-layer implementations) into the DI container.",
+        "responsibility": "Configures and registers infrastructure services and external clients (DBs, AI, vector/graph stores, job processing, authorization, and app-layer implementations) into the DI container.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection / Service Registration",
+          "Factory (DbContextFactory)",
+          "Resilience (retry pipeline)",
+          "Repository"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "DependencyInjection"
+          },
+          {
+            "label": "Signature",
+            "value": "(this IServiceCollection services, IConfiguration configuration) -> IServiceCollection"
+          },
+          {
+            "label": "Calls",
+            "value": "12"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Selects DB provider @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L34"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L44"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Qdrant client registration @L56"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Neo4j driver registration @L60"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L64"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook / Epub processing, AI (chat/embeddings), Vector store (Qdrant)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/DependencyInjection.cs:31:1",
+            "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+            "line": 31,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "sourceLine": 31,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/DependencyInjection.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_knowledgerequest_566",
+        "label": "KnowledgeRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Request DTO carrying free-text input and optional ebook context for knowledge APIs.",
+        "responsibility": "Request DTO carrying free-text input and optional ebook context for knowledge APIs.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Text",
+            "value": "string required"
+          },
+          {
+            "label": "EbookId",
+            "value": "Guid?"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:566:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 566,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 566,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_groundednessrequest_567",
+        "label": "GroundednessRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Request DTO for verifying answer groundedness in a context.",
+        "responsibility": "Request DTO for verifying answer groundedness in a context.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Answer",
+            "value": "string required"
+          },
+          {
+            "label": "Context",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:567:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 567,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 567,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_semanticsearchrequest_568",
+        "label": "SemanticSearchRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "DTO for semantic search requests with a limit.",
+        "responsibility": "DTO for semantic search requests with a limit.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "QueryText",
+            "value": "string required"
+          },
+          {
+            "label": "Limit",
+            "value": "int"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:568:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 568,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_askquestionrequest_569",
+        "label": "AskQuestionRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "DTO for question-asking APIs including optional ebook context and limit.",
+        "responsibility": "DTO for question-asking APIs including optional ebook context and limit.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "3"
+          },
+          {
+            "label": "Question",
+            "value": "string required"
+          },
+          {
+            "label": "EbookId",
+            "value": "Guid?"
+          },
+          {
+            "label": "Limit",
+            "value": "int"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:569:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 569,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 569,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!app.Environment.IsDevelopment())",
+        "responsibility": "if (!app.Environment.IsDevelopment())",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!app.Environment.IsDevelopment()"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:237:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 237,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 237,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "responsibility": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(mediator: IMediator) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Depends on IMediator @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores mediator @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_mediator",
+            "value": "IMediator required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:1:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "responsibility": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(mediator: IMediator) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Depends on IMediator @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores mediator @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_mediator",
+            "value": "IMediator required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:14:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 14,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 14,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1",
+        "label": "AuthenticationHeaderHandler",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "DelegatingHandler that attaches JWTs to trusted requests and orchestrates token refresh and retry behavior.",
+        "responsibility": "DelegatingHandler that attaches JWTs to trusted requests and orchestrates token refresh and retry behavior.",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Signature",
+            "value": "(INativeStorageService storageService, IServiceProvider serviceProvider) -> AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Store injected services @L23"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "_storageService",
+            "value": "INativeStorageService required"
+          },
+          {
+            "label": "_serviceProvider",
+            "value": "IServiceProvider required"
+          },
+          {
+            "label": "TokenKey",
+            "value": "const string required"
+          },
+          {
+            "label": "_refreshSemaphore",
+            "value": "SemaphoreSlim required"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:1:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112",
+        "label": "CloneHttpRequestMessageAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Creates a deep-ish clone of an HttpRequestMessage including method, URI, version, headers and buffered content to allow safe retry.",
+        "responsibility": "Creates a deep-ish clone of an HttpRequestMessage including method, URI, version, headers and buffered content to allow safe retry.",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Signature",
+            "value": "(HttpRequestMessage req) -> Task<HttpRequestMessage>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Create new HttpRequestMessage clone @L114"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Copy request content stream and headers @L119"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L119"
+          },
+          {
+            "label": "Action:loop",
+            "value": "Repeats work over a collection or condition @L126"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Copy request headers @L132"
+          },
+          {
+            "label": "Action:loop",
+            "value": "Repeats work over a collection or condition @L132"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:112:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 112,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 112,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (req.Content != null)",
+        "responsibility": "if (req.Content != null)",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "req.Content != null"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:119:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 119,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 119,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1",
+        "label": "EpubReaderService",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "service",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Service that locates EPUB files recorded in the database, parses a requested chapter, splits the chapter into sanitized content blocks, injects AI-action trigger blocks at thresholds, and returns a ReaderPageViewModel for consumption by the application.",
+        "responsibility": "Important behaviors: DB lookup with user guard, file path resolution that handles dev/prod layouts, EPUB parsing via external library, paragraph extraction and HTML sanitization, word-count-based insertion of AI trigger blocks (WordThreshold = 1000), recursive navigation-title lookup, and robust error logging with Result-based failure propagation.",
+        "technologyHints": [
+          "csharp",
+          "Service",
+          "Repository-access (via DbContext)",
+          "Factory (CreateAiTrigger)",
+          "Parsing & sanitization pipeline"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "EpubReaderService"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Chapter/ReadingOrder, ContentBlock (TextSegmentBlock, AiActionTriggerBlock)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/EpubReaderService.cs:1:1",
+            "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19",
+        "label": "UpdateProgress",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+        "responsibility": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(pageId: string, ebookId: Guid, progress: double, chapterTitle: string? , chapterIndex: int) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L21"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads user id from connection context @L21"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Requires authenticated user id @L21"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L22"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Dispatches command to application layer @L24"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Includes connection id in command @L24"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:19:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 19,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 19,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+        "responsibility": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:21:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 21,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 21,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28",
+        "label": "OnConnectedAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "When a client connects, adds their connection to a per-user SignalR group (User_{userId}) and calls base connection logic.",
+        "responsibility": "When a client connects, adds their connection to a per-user SignalR group (User_{userId}) and calls base connection logic.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "() -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads Context.UserIdentifier @L30"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L30"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L31"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Only add to group if userId present @L31"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Adds connection to per-user group @L33"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L33"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:28:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 28,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 28,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "var userId = Context.UserIdentifier;",
+        "responsibility": "var userId = Context.UserIdentifier;",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:30:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 30,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 30,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38",
+        "label": "OnDisconnectedAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "When a client disconnects, removes their connection from the per-user SignalR group and invokes base disconnect logic.",
+        "responsibility": "When a client disconnects, removes their connection from the per-user SignalR group and invokes base disconnect logic.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(exception: Exception?) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads Context.UserIdentifier @L40"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L40"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L41"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Only remove from group if userId present @L41"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L43"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Removes connection from per-user group @L43"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:38:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "var userId = Context.UserIdentifier;",
+        "responsibility": "var userId = Context.UserIdentifier;",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:40:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175",
+        "label": "CountWords",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Count words in a string using whitespace separators; returns 0 for null/whitespace.",
+        "responsibility": "Count words in a string using whitespace separators; returns 0 for null/whitespace.",
+        "technologyHints": [
+          "csharp",
+          "Service",
+          "Repository-access (via DbContext)",
+          "Factory (CreateAiTrigger)",
+          "Parsing & sanitization pipeline"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "EpubReaderService"
+          },
+          {
+            "label": "Signature",
+            "value": "(text: string) -> int"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Empty text check @L177"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Guards early exit or rejection path @L177"
+          },
+          {
+            "label": "Action:return",
+            "value": "Returns result @L178"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Split and count words @L178"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Chapter/ReadingOrder, ContentBlock (TextSegmentBlock, AiActionTriggerBlock)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/EpubReaderService.cs:175:1",
+            "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+            "line": 175,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "sourceLine": 175,
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_416_416",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+              "path": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_418_418",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+              "path": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_419_419",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+              "path": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_424_424",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_439_439",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+              "path": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_441_441",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_442_442",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
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+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_444_444",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+              "path": "NexusReader.Web/Program.cs",
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_460_460",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+              "path": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_470_470",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_log_472_472",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_473_473",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_477_477",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_479_479",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_480_480",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_483_483",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_log_485_485",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_485_485",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_486_486",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          ]
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_490_490",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_491_491",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_496_496",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_501_501",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_loop_505_505",
+          "label": "Repeats work over a collection or condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+              "path": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_log_507_507",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_510_510",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_512_512",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_log_516_516",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_517_517",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+          ]
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_529_529",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidenceReferences": [
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_532_532",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_536_536",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_545_545",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_550_550",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_551_551",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_554_554",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_554_554",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+          ]
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+          "role": "startup",
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+          "kind": "action",
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+          "role": "startup",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
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+          "role": "startup",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
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+          "evidencePaths": [
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_verify_groundedness_return_302_302",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
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+          "kind": "action",
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+          "role": "startup",
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+          "role": "startup",
+          "layer": "application",
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+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+        ],
+        "warnings": []
+      }
+    },
+    {
+      "id": "method_flows_graph",
+      "kind": "method-flow",
+      "title": "Method Flow Details",
+      "direction": "TD",
+      "nodes": [
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237",
+          "kind": "step",
+          "label": "Evaluates branch condition",
+          "shape": "diamond",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 237
+        },
+        {
+          "id": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+          "kind": "dependency",
+          "label": "SyncHub",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 1
+        },
+        {
+          "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14",
+          "kind": "method",
+          "label": "SyncHub",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 14
+        },
+        {
+          "id": "flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1",
+          "kind": "dependency",
+          "label": "AuthenticationHeaderHandler",
+          "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+          "sourceLine": 1
+        },
+        {
+          "id": "flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112",
+          "kind": "method",
+          "label": "CloneHttpRequestMessageAsync",
+          "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+          "sourceLine": 112
+        },
+        {
+          "id": "flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119",
+          "kind": "step",
+          "label": "Evaluates branch condition",
+          "shape": "diamond",
+          "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+          "sourceLine": 119
+        },
+        {
+          "id": "flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1",
+          "kind": "service",
+          "label": "EpubReaderService",
+          "sourcePath": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+          "sourceLine": 1
+        },
+        {
+          "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19",
+          "kind": "method",
+          "label": "UpdateProgress",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 19
+        },
+        {
+          "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21",
+          "kind": "step",
+          "label": "Reads repository or persistence state",
+          "shape": "rect",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 21
+        },
+        {
+          "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28",
+          "kind": "method",
+          "label": "OnConnectedAsync",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 28
+        },
+        {
+          "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30",
+          "kind": "step",
+          "label": "Reads repository or persistence state",
+          "shape": "rect",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 30
+        },
+        {
+          "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38",
+          "kind": "method",
+          "label": "OnDisconnectedAsync",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 38
+        },
+        {
+          "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40",
+          "kind": "step",
+          "label": "Reads repository or persistence state",
+          "shape": "rect",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 40
+        },
+        {
+          "id": "flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175",
+          "kind": "method",
+          "label": "CountWords",
+          "sourcePath": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+          "sourceLine": 175
+        },
+        {
+          "id": "flow_action_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_guard_clause_177_177",
+          "kind": "step",
+          "label": "Empty text check",
+          "shape": "diamond",
+          "sourcePath": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+          "sourceLine": 177
+        }
+      ],
+      "edges": [
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+          "id": "edge_flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237_flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14_uses_service_247",
+          "from": "flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237",
+          "to": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14",
+          "semanticLabel": "SyncHub",
+          "visibleLabel": "SyncHub",
+          "relation": "uses",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Web/Program.cs",
+          "sourceLine": 247,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "Hub mapping for realtime sync",
+            "expandedLabel": "uses-service"
+          }
+        },
+        {
+          "id": "edge_flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1_flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112_invokes_112",
+          "from": "flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1",
+          "to": "flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112",
+          "semanticLabel": "CloneHttpRequestMessageAsync",
+          "visibleLabel": "CloneHttpRequestMessageAsync",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+          "sourceLine": 112,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "Creates a deep-ish clone of an HttpRequestMessage including method, URI, version, headers and buffered content to allow safe retry.",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112_flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119_evaluates_condition_119",
+          "from": "flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112",
+          "to": "flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119",
+          "semanticLabel": "true / false",
+          "visibleLabel": "true / false",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+          "sourceLine": 119,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "if (req.Content != null)",
+            "expandedLabel": "evaluates-condition"
+          }
+        },
+        {
+          "id": "edge_flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1_flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19_invokes_19",
+          "from": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+          "to": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19",
+          "semanticLabel": "UpdateProgress",
+          "visibleLabel": "UpdateProgress",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 19,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+            "expandedLabel": "handles-route"
+          }
+        },
+        {
+          "id": "edge_flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19_flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21_invokes_21",
+          "from": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19",
+          "to": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21",
+          "semanticLabel": "Reads repository or persistence state",
+          "visibleLabel": "Reads repository or persistence state",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 21,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1_flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28_invokes_28",
+          "from": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+          "to": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28",
+          "semanticLabel": "OnConnectedAsync",
+          "visibleLabel": "OnConnectedAsync",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 28,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "When a client connects, adds their connection to a per-user SignalR group (User_{userId}) and calls base connection logic.",
+            "expandedLabel": "handles-route"
+          }
+        },
+        {
+          "id": "edge_flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28_flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30_invokes_30",
+          "from": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28",
+          "to": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30",
+          "semanticLabel": "Reads repository or persistence state",
+          "visibleLabel": "Reads repository or persistence state",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 30,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "var userId = Context.UserIdentifier;",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1_flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38_invokes_38",
+          "from": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+          "to": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38",
+          "semanticLabel": "OnDisconnectedAsync",
+          "visibleLabel": "OnDisconnectedAsync",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 38,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "When a client disconnects, removes their connection from the per-user SignalR group and invokes base disconnect logic.",
+            "expandedLabel": "handles-route"
+          }
+        },
+        {
+          "id": "edge_flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38_flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40_invokes_40",
+          "from": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38",
+          "to": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40",
+          "semanticLabel": "Reads repository or persistence state",
+          "visibleLabel": "Reads repository or persistence state",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 40,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "var userId = Context.UserIdentifier;",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1_flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175_invokes_175",
+          "from": "flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1",
+          "to": "flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175",
+          "semanticLabel": "CountWords",
+          "visibleLabel": "CountWords",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/Services/EpubReaderService.cs",
+          "sourceLine": 175,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "Count words in a string using whitespace separators; returns 0 for null/whitespace.",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175_flow_action_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_guard_clause_177_177_evaluates_condition_177",
+          "from": "flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175",
+          "to": "flow_action_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_guard_clause_177_177",
+          "semanticLabel": "return 0 / continue",
+          "visibleLabel": "return 0 / continue",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/Services/EpubReaderService.cs",
+          "sourceLine": 177,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "Empty text check",
+            "expandedLabel": "evaluates-condition"
+          }
+        }
+      ],
+      "subgraphs": [
+        {
+          "id": "NexusReader_Infrastructure_RealTime_SyncHub",
+          "label": "SyncHub"
+        },
+        {
+          "id": "NexusReader_Web_Client_Handlers_AuthenticationHeaderHandler",
+          "label": "AuthenticationHeaderHandler"
+        },
+        {
+          "id": "NexusReader_Infrastructure_Services_EpubReaderService",
+          "label": "EpubReaderService"
+        }
+      ],
+      "metadata": {
+        "evidencePaths": [
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Web/Program.cs",
+          "NexusReader.Application/DependencyInjection.cs",
+          "NexusReader.Infrastructure/DependencyInjection.cs",
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "NexusReader.Application/DTOs/User/AuthorDto.cs",
+          "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+          "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+          "NexusReader.Domain/Entities/Author.cs",
+          "NexusReader.UI.Shared/Layout/AuthLayout.razor",
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+          "NexusReader.UI.Shared/Pages/Account/Login.razor",
+          "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+          "NexusReader.UI.Shared/Pages/Account/Register.razor",
+          "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+          "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+          "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+          "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+          "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+          "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+          "NexusReader.Infrastructure/Services/BookStorageService.cs",
+          "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+        ]
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/src/.documentation/business/index.md b/src/.documentation/business/index.md
new file mode 100644
index 0000000..5388ca2
--- /dev/null
+++ b/src/.documentation/business/index.md
@@ -0,0 +1,8 @@
+## Business
+
+This collection groups business documentation generated from the repository semantic map.
+
+### Documents
+
+- [Business Overview](business-overview.md): ## Business Overview  Business Overview centers on account, ai token usage / limits, ai tokens and c...
+- [Top Business Flows](top-business-flows.md): ## Top Business Flows  Highest-value business flows that should be published as first-class system e...
\ No newline at end of file
diff --git a/src/.documentation/business/top-business-flows.md b/src/.documentation/business/top-business-flows.md
new file mode 100644
index 0000000..c754ef5
--- /dev/null
+++ b/src/.documentation/business/top-business-flows.md
@@ -0,0 +1,337 @@
+## Top Business Flows
+
+Highest-value business flows that should be published as first-class system entry points. This publication highlights the highest-value business flows selected from the ranked candidate set. Selected: 5. Rejected or deferred: 2.
+
+### Selected Flows
+
+#### Ebook Retrieval / Ingestion Flow
+
+- Rank: 1
+- Score: 0.86
+- Confidence: high
+- Reason: Selected because Ebook Retrieval / Ingestion Flow ranked #1 with score 0.86 above the selection threshold 0.60.
+- Domains: account, ai token usage / limits, ai tokens, ai tokens (aitokensused, aitokenlimit), auth, authentication, author, authorization policy, command, cookie based sign in, ebook, ebook / epub ingestion, embedding, external (google) login, identity (authenticationstateprovider), jwt, knowledge (knowledge service, graph, summary), knowledgegraph / knowledgecoordinator, nexususer (identity), pro subscription, query, quiz state, reader navigation, real time sync/broadcast, result, result<tresponse>, secure client storage, session/cookie sign in orchestration, subscription / plan, subscriptionplan, sync, tenantid, theme & focus mode, token refresh, user, user registration, userprofile
+- Entrypoints: NexusReader.Web/Program.cs, NexusReader.Application/DependencyInjection.cs, NexusReader.Web.Client/Program.cs
+- Flow: Ebook Retrieval / Ingestion Flow starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....
+- Steps: 1. Enter Program (top level) | 2. Falls back to alternate path | 3. Repeats work over a collection or condition | 4. Guards early exit or rejection path | 5. Branches across multiple outcomes | 6. Evaluates branch condition | 7. Reads repository or persistence state | 8. Returns result | 9. Validates input or state | 10. Call Add Application | 11. Call Add Infrastructure | 12. Call Db Initializer
+
+#### Ensure Database Initialized
+
+- Rank: 2
+- Score: 0.86
+- Confidence: high
+- Reason: Selected because Ensure Database Initialized ranked #2 with score 0.86 above the selection threshold 0.60.
+- Domains: account, ai token usage / limits, ai tokens, ai tokens (aitokensused, aitokenlimit), auth, authentication, author, authorization policy, command, cookie based sign in, ebook, ebook / epub ingestion, embedding, external (google) login, identity (authenticationstateprovider), jwt, knowledge (knowledge service, graph, summary), knowledgegraph / knowledgecoordinator, nexususer (identity), pro subscription, query, quiz state, reader navigation, real time sync/broadcast, result, result<tresponse>, secure client storage, session/cookie sign in orchestration, subscription / plan, subscriptionplan, sync, tenantid, theme & focus mode, token refresh, user, user registration, userprofile
+- Entrypoints: NexusReader.Web/Program.cs, NexusReader.Application/DependencyInjection.cs, NexusReader.Web.Client/Program.cs
+- Flow: Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....
+- Steps: 1. Enter Program (top level) | 2. Falls back to alternate path | 3. Repeats work over a collection or condition | 4. Guards early exit or rejection path | 5. Branches across multiple outcomes | 6. Evaluates branch condition | 7. Reads repository or persistence state | 8. Returns result | 9. Validates input or state | 10. Call Add Application | 11. Call Add Infrastructure | 12. Call Db Initializer
+
+#### Handle Subscription Success
+
+- Rank: 3
+- Score: 0.86
+- Confidence: high
+- Reason: Selected because Handle Subscription Success ranked #3 with score 0.86 above the selection threshold 0.60.
+- Domains: account, ai token usage / limits, ai tokens, ai tokens (aitokensused, aitokenlimit), auth, authentication, author, authorization policy, command, cookie based sign in, ebook, ebook / epub ingestion, embedding, external (google) login, identity (authenticationstateprovider), jwt, knowledge (knowledge service, graph, summary), knowledgegraph / knowledgecoordinator, nexususer (identity), pro subscription, query, quiz state, reader navigation, real time sync/broadcast, result, result<tresponse>, secure client storage, session/cookie sign in orchestration, subscription / plan, subscriptionplan, sync, tenantid, theme & focus mode, token refresh, user, user registration, userprofile
+- Entrypoints: NexusReader.Web/Program.cs, NexusReader.Application/DependencyInjection.cs, NexusReader.Web.Client/Program.cs
+- Flow: Handle Subscription Success starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....
+- Steps: 1. Enter Program (top level) | 2. Falls back to alternate path | 3. Repeats work over a collection or condition | 4. Guards early exit or rejection path | 5. Branches across multiple outcomes | 6. Evaluates branch condition | 7. Reads repository or persistence state | 8. Returns result | 9. Validates input or state | 10. Call Add Application | 11. Call Add Infrastructure | 12. Call Db Initializer
+
+#### Knowledge Question / Semantic Search Flow
+
+- Rank: 4
+- Score: 0.86
+- Confidence: high
+- Reason: Selected because Knowledge Question / Semantic Search Flow ranked #4 with score 0.86 above the selection threshold 0.60.
+- Domains: account, ai token usage / limits, ai tokens, ai tokens (aitokensused, aitokenlimit), auth, authentication, author, authorization policy, command, cookie based sign in, ebook, ebook / epub ingestion, embedding, external (google) login, identity (authenticationstateprovider), jwt, knowledge (knowledge service, graph, summary), knowledgegraph / knowledgecoordinator, nexususer (identity), pro subscription, query, quiz state, reader navigation, real time sync/broadcast, result, result<tresponse>, secure client storage, session/cookie sign in orchestration, subscription / plan, subscriptionplan, sync, tenantid, theme & focus mode, token refresh, user, user registration, userprofile
+- Entrypoints: NexusReader.Web/Program.cs, NexusReader.Application/DependencyInjection.cs, NexusReader.Web.Client/Program.cs
+- Flow: Knowledge Question / Semantic Search Flow starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....
+- Steps: 1. Enter Program (top level) | 2. Falls back to alternate path | 3. Repeats work over a collection or condition | 4. Guards early exit or rejection path | 5. Branches across multiple outcomes | 6. Evaluates branch condition | 7. Reads repository or persistence state | 8. Returns result | 9. Validates input or state | 10. Call Add Application | 11. Call Add Infrastructure | 12. Call Db Initializer
+
+#### Program (top level)
+
+- Rank: 5
+- Score: 0.86
+- Confidence: high
+- Reason: Selected because Program (top level) ranked #5 with score 0.86 above the selection threshold 0.60.
+- Domains: account, ai token usage / limits, ai tokens, ai tokens (aitokensused, aitokenlimit), auth, authentication, author, authorization policy, command, cookie based sign in, ebook, ebook / epub ingestion, embedding, external (google) login, identity (authenticationstateprovider), jwt, knowledge (knowledge service, graph, summary), knowledgegraph / knowledgecoordinator, nexususer (identity), pro subscription, query, quiz state, reader navigation, real time sync/broadcast, result, result<tresponse>, secure client storage, session/cookie sign in orchestration, subscription / plan, subscriptionplan, sync, tenantid, theme & focus mode, token refresh, user, user registration, userprofile
+- Entrypoints: NexusReader.Web/Program.cs, NexusReader.Application/DependencyInjection.cs, NexusReader.Web.Client/Program.cs
+- Flow: Program (top level) starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....
+- Steps: 1. Enter Program (top level) | 2. Falls back to alternate path | 3. Repeats work over a collection or condition | 4. Guards early exit or rejection path | 5. Branches across multiple outcomes | 6. Evaluates branch condition | 7. Reads repository or persistence state | 8. Returns result | 9. Validates input or state | 10. Call Add Application | 11. Call Add Infrastructure | 12. Call Db Initializer
+
+
+### Diagrams
+
+These diagrams highlight the technical paths that anchor the highest-value business flows.
+
+#### Dependency and Model Map
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1["MauiProgram"]
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_type_nexusreader_maui_mauiprogram_cs_handlers_from_nexusreader_application_assembly_53[/"Handlers from NexusReader.Application assembly"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38[/"HttpClient (configured)"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28[/"MauiPlatformService"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_mauiprogram_10[/"MauiProgram"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29[/"MauiStorageService"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33[/"NexusAuthenticationStateProvider (via factory)"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_nexusreader_application_registrations_51[/"NexusReader.Application registrations"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1[/"ThemeService, FocusModeService, QuizStateService, ReaderNavigationService, KnowledgeGraphService, ReaderInteractionService, KnowledgeCoordinator, SyncService, IdentityService"/]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+    flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+    flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|MediatR handlers| flow_type_nexusreader_maui_mauiprogram_cs_handlers_from_nexusreader_application_assembly_53
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|HttpClient| flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|IPlatformService| flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|model MauiProgram| flow_type_nexusreader_maui_mauiprogram_cs_mauiprogram_10
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|INativeStorageService| flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|Microsoft.AspNetCore.Components.Authorization.AuthenticationStateProvider| flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|Application layer services extension| flow_type_nexusreader_maui_mauiprogram_cs_nexusreader_application_registrations_51
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|UI and app state services| flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    click flow_file_nexusreader_maui_mauiprogram_cs_file_1 href "vscode://file/NexusReader.Maui/MauiProgram.cs:1:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_mauiprogram_10 href "vscode://file/NexusReader.Maui/MauiProgram.cs:10:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28 href "vscode://file/NexusReader.Maui/MauiProgram.cs:28:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29 href "vscode://file/NexusReader.Maui/MauiProgram.cs:29:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32 href "vscode://file/NexusReader.Maui/MauiProgram.cs:32:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33 href "vscode://file/NexusReader.Maui/MauiProgram.cs:33:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38 href "vscode://file/NexusReader.Maui/MauiProgram.cs:38:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1 href "vscode://file/NexusReader.Maui/MauiProgram.cs:1:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_nexusreader_application_registrations_51 href "vscode://file/NexusReader.Maui/MauiProgram.cs:51:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_handlers_from_nexusreader_application_assembly_53 href "vscode://file/NexusReader.Maui/MauiProgram.cs:53:1" "Open source"
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+```
+
+This dependency-map view is included as a grounded technical anchor for the published business interpretation.
+
+#### Startup and Service Registration Flow
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    subgraph flow_1_nexusreader_web_client_program_cs["Program.cs"]
+    end
+    subgraph flow_2_nexusreader_maui_mauiprogram_cs["MauiProgram"]
+    end
+    subgraph Node_xref_top_business_flows_md_user_authentication_login_register_flow["User Authentication (Login/Register) Flow"]
+    end
+    subgraph Node_xref_top_business_flows_md_knowledge_question_semantic_search_flow["Knowledge Question / Semantic Search Flow"]
+    end
+    subgraph Node_xref_top_business_flows_md_ebook_retrieval_ingestion_flow["Ebook Retrieval / Ingestion Flow"]
+    end
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1["MauiProgram"]
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_maui_mauiprogram_cs_create_and_build_mauiapp_16["Create and build MauiApp"]
+    flow_type_nexusreader_maui_mauiprogram_cs_handlers_from_nexusreader_application_assembly_53[/"Handlers from NexusReader.Application assembly"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38[/"HttpClient (configured)"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28[/"MauiPlatformService"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29[/"MauiStorageService"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33[/"NexusAuthenticationStateProvider (via factory)"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_nexusreader_application_registrations_51[/"NexusReader.Application registrations"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1[/"ThemeService, FocusModeService, QuizStateService, ReaderNavigationService, KnowledgeGraphService, ReaderInteractionService, KnowledgeCoordinator, SyncService, IdentityService"/]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|unknown| flow_method_nexusreader_maui_mauiprogram_cs_create_and_build_mauiapp_16
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|MediatR handlers| flow_type_nexusreader_maui_mauiprogram_cs_handlers_from_nexusreader_application_assembly_53
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|HttpClient| flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|IPlatformService| flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|INativeStorageService| flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|Microsoft.AspNetCore.Components.Authorization.AuthenticationStateProvider| flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|Application layer services extension| flow_type_nexusreader_maui_mauiprogram_cs_nexusreader_application_registrations_51
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|UI and app state services| flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    click flow_file_nexusreader_maui_mauiprogram_cs_file_1 href "vscode://file/NexusReader.Maui/MauiProgram.cs:1:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28 href "vscode://file/NexusReader.Maui/MauiProgram.cs:28:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29 href "vscode://file/NexusReader.Maui/MauiProgram.cs:29:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32 href "vscode://file/NexusReader.Maui/MauiProgram.cs:32:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33 href "vscode://file/NexusReader.Maui/MauiProgram.cs:33:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38 href "vscode://file/NexusReader.Maui/MauiProgram.cs:38:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1 href "vscode://file/NexusReader.Maui/MauiProgram.cs:1:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_nexusreader_application_registrations_51 href "vscode://file/NexusReader.Maui/MauiProgram.cs:51:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_handlers_from_nexusreader_application_assembly_53 href "vscode://file/NexusReader.Maui/MauiProgram.cs:53:1" "Open source"
+    click flow_method_nexusreader_maui_mauiprogram_cs_create_and_build_mauiapp_16 href "vscode://file/NexusReader.Maui/MauiProgram.cs:16:1" "Open source"
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+```
+
+This primary-runtime view is included as a grounded technical anchor for the published business interpretation.
+
+#### Program.cs Flow
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    subgraph flow_1_nexusreader_web_client_program_cs["Program.cs"]
+    end
+    subgraph flow_2_nexusreader_maui_mauiprogram_cs["MauiProgram"]
+    end
+    subgraph flow_0_nexusreader_web_program_cs["Program.cs"]
+    end
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_method_nexusreader_web_program_cs_program_top_level_29["Program (top-level)"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62{"Evaluates branch condition"}
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66{"Falls back to alternate path"}
+    flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125["Reads repository or persistence state"]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+    flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+    flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+    flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 -->|fallback| flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 -->|Reads repository or persistence state| flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|FindAuthorByNameAsync| flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|GetService| flow_method_nexusreader_web_client_program_cs_getservice_71
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|Program top-level startup| flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|unknown| flow_method_nexusreader_web_client_program_cs_run_wasm_host_59
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    flow_file_nexusreader_web_program_cs_file_1 -->|Program top-level| flow_method_nexusreader_web_program_cs_program_top_level_29
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 -->|Reads repository or persistence state| flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88
+    flow_method_nexusreader_web_client_program_cs_getservice_71 -->|returns null| flow_action_nexusreader_web_client_program_cs_getservice_return_71_71
+    flow_method_nexusreader_web_program_cs_program_top_level_29 -->|true / false| flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_run_wasm_host_59 href "vscode://file/NexusReader.Web.Client/Program.cs:59:1" "Open source"
+    click flow_file_nexusreader_web_program_cs_file_1 href "vscode://file/NexusReader.Web/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_program_cs_program_top_level_29 href "vscode://file/NexusReader.Web/Program.cs:29:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 href "vscode://file/NexusReader.Web/Program.cs:62:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 href "vscode://file/NexusReader.Web/Program.cs:66:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125 href "vscode://file/NexusReader.Web/Program.cs:125:1" "Open source"
+```
+
+This primary-runtime view is included as a grounded technical anchor for the published business interpretation.
+
+
+### Additional Ranked Candidates
+
+- **User Authentication (Login/Register) Flow** (rank 6, score 0.86, rejected): Rejected because User Authentication (Login/Register) Flow ranked #6, outside the top 5 publication slots.
+- **Token Attach & Refresh Flow (Client HTTP)** (rank 7, score 0.82, rejected): Rejected because Token Attach & Refresh Flow (Client HTTP) ranked #7, outside the top 5 publication slots.
+
+### Key Files
+
+- NexusReader.Maui/MauiProgram.cs
+- NexusReader.Web.Client/Program.cs
+- NexusReader.Web/Program.cs
+- NexusReader.Application/DTOs/User/AuthorDto.cs
+- NexusReader.Application/Security/Authorization/ProUserHandler.cs
+- NexusReader.Application/Security/Authorization/ProUserRequirement.cs
+- NexusReader.Domain/Entities/Author.cs
+- NexusReader.UI.Shared/Layout/AuthLayout.razor
+
+<div hidden data-ai-mermaid-metadata-appendix>
+<script type="application/json" data-ai-mermaid-metadata="0" data-ai-mermaid-diagram-id="dependency_map_graph">{"edges":[{"id":"edge_flow_file_nexusreader_maui_mauiprogram_cs_file_1_flow_type_nexusreader_maui_mauiprogram_cs_mauiprogram_10_defines_type_10","from":"flow_file_nexusreader_maui_mauiprogram_cs_file_1","to":"flow_type_nexusreader_maui_mauiprogram_cs_mauiprogram_10","relation":"transforms","semanticLabel":"model MauiProgram","payload":{"outputSummary":"Static host for MAUI app startup logic and DI composition.","expandedLabel":"defines-type"}},{"id":"edge_flow_file_nexusreader_maui_mauiprogram_cs_file_1_flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28_registers_service_28","from":"flow_file_nexusreader_maui_mauiprogram_cs_file_1","to":"flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28","relation":"uses","semanticLabel":"IPlatformService","payload":{"outputSummary":"Registers platform abstraction implemented for 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+</div>
+
+---
+
+## See Also
+
+- [Business Overview](business-overview.md)
+- [Application Layer: Commands, Queries and DTOs](../domains/application-layer.md)
+- [Security, Identity and Authorization](../flows/security-identity-auth.md)
+- [Blazor WebAssembly Client: hosting, handlers, and platform services](../flows/web-client-wasm.md)
+- [MAUI Mobile Host: App wiring and platform services](../domains/maui-mobile.md)
+- [Real-Time Sync, SignalR and Broadcast](../flows/realtime-and-sync.md)
+- [Project Overview and Architecture](../collections/overview.md)
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new file mode 100644
index 0000000..6ff649f
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+          "Dependency Injection",
+          "Host/Startup bootstrap",
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+            "key": "source",
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+        ],
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
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+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
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+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
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+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
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+          "csharp",
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+          "Host/Startup bootstrap",
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+            "label": "Domain",
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+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
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+        "technologyHints": [
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+          "Host/Startup bootstrap",
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+        ],
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+            "key": "source",
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+          "NexusReader.Web.Client/Program.cs"
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+      {
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+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+          {
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+          "NexusReader.Web.Client/Program.cs"
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+      },
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+          "Composition Root",
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+        "technologyHints": [
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+          "Composition Root",
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+            "label": "Owner",
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+        "technologyHints": [
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+          "Composition Root",
+          "Service Registration"
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+            "label": "Owner",
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+          "Composition Root",
+          "Service Registration"
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+        "technologyHints": [
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+          "Composition Root",
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+          {
+            "label": "Owner",
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+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
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+          {
+            "label": "Owner",
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+          {
+            "label": "Domain",
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+        ],
+        "navigationTargets": [
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+            "key": "source",
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+      },
+      {
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+        "label": "ThemeService, FocusModeService, QuizStateService, ReaderNavigationService, KnowledgeGraphService, ReaderInteractionService, KnowledgeCoordinator, SyncService, IdentityService",
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+        "responsibility": "Sets HttpClient BaseAddress to http://10.0.2.2:5000 (typical Android emulator -> host routing); composes Application layer via AddApplication() and registers MediatR scanning the Application assembly; startup protected by try/catch that writes Debug output and rethrows.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
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+        "detailItems": [
+          {
+            "label": "Owner",
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+          {
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+            "key": "source",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Maui/MauiProgram.cs"
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+      {
+        "id": "flow_type_nexusreader_maui_mauiprogram_cs_nexusreader_application_registrations_51",
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+        "responsibility": "Sets HttpClient BaseAddress to http://10.0.2.2:5000 (typical Android emulator -> host routing); composes Application layer via AddApplication() and registers MediatR scanning the Application assembly; startup protected by try/catch that writes Debug output and rethrows.",
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+          "csharp",
+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "MauiProgram"
+          },
+          {
+            "label": "Domain",
+            "value": "Identity (AuthenticationStateProvider), Sync, KnowledgeGraph / KnowledgeCoordinator"
+          }
+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Maui/MauiProgram.cs:51:1",
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+        ],
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Maui/MauiProgram.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_maui_mauiprogram_cs_handlers_from_nexusreader_application_assembly_53",
+        "label": "Handlers from NexusReader.Application assembly",
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+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
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+        "responsibility": "Sets HttpClient BaseAddress to http://10.0.2.2:5000 (typical Android emulator -> host routing); composes Application layer via AddApplication() and registers MediatR scanning the Application assembly; startup protected by try/catch that writes Debug output and rethrows.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "MauiProgram"
+          },
+          {
+            "label": "Domain",
+            "value": "Identity (AuthenticationStateProvider), Sync, KnowledgeGraph / KnowledgeCoordinator"
+          }
+        ],
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+          {
+            "key": "source",
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+        ],
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Maui/MauiProgram.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_maui_mauiprogram_cs_create_and_build_mauiapp_16",
+        "label": "Create and build MauiApp",
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+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging.",
+        "responsibility": "Sets HttpClient BaseAddress to http://10.0.2.2:5000 (typical Android emulator -> host routing); composes Application layer via AddApplication() and registers MediatR scanning the Application assembly; startup protected by try/catch that writes Debug output and rethrows.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "MauiProgram"
+          },
+          {
+            "label": "Domain",
+            "value": "Identity (AuthenticationStateProvider), Sync, KnowledgeGraph / KnowledgeCoordinator"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Maui/MauiProgram.cs:16:1",
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "line": 16,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Maui/MauiProgram.cs"
+        ]
+      },
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+        "label": "Program.cs",
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+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
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+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
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+          {
+            "key": "source",
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+            "tooltip": "Open source"
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+        ],
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
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+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
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+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
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+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
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+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
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+            "key": "source",
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+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "startup_runtime_graph",
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+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
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+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
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+            "tooltip": "Open source"
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+        ],
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
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+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
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+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
+        "navigationTargets": [
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+            "key": "source",
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
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+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+        ],
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
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+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
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+          }
+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
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+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "responsibility": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:125:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 125,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 125,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
+        "label": "Program (top-level startup)",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:15:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 15,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 15,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
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+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "responsibility": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:125:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 125,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 125,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_126_126",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "context.Request.Path.StartsWithSegments(\"/identity\") ||",
+        "responsibility": "context.Request.Path.StartsWithSegments(\"/identity\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:126:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 126,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 126,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_dependencyinjection_cs_addapplication_8",
+        "label": "AddApplication",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Extension method that registers application mapping configuration and MediatR handlers, returning the IServiceCollection for chaining.",
+        "responsibility": "Extension method that registers application mapping configuration and MediatR handlers, returning the IServiceCollection for chaining.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection extension",
+          "Service registration"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "DependencyInjection"
+          },
+          {
+            "label": "Signature",
+            "value": "(services: IServiceCollection) -> IServiceCollection"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register mapping configuration @L10"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register MediatR handlers @L11"
+          },
+          {
+            "label": "Action:return",
+            "value": "Return IServiceCollection @L13"
+          },
+          {
+            "label": "Action:return",
+            "value": "Returns result @L13"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/DependencyInjection.cs:8:1",
+            "path": "NexusReader.Application/DependencyInjection.cs",
+            "line": 8,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DependencyInjection.cs",
+        "sourceLine": 8,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/DependencyInjection.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_31",
+        "label": "AddInfrastructure",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Configures and registers infrastructure services and external clients (DBs, AI, vector/graph stores, job processing, authorization, and app-layer implementations) into the DI container.",
+        "responsibility": "Configures and registers infrastructure services and external clients (DBs, AI, vector/graph stores, job processing, authorization, and app-layer implementations) into the DI container.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection / Service Registration",
+          "Factory (DbContextFactory)",
+          "Resilience (retry pipeline)",
+          "Repository"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "DependencyInjection"
+          },
+          {
+            "label": "Signature",
+            "value": "(this IServiceCollection services, IConfiguration configuration) -> IServiceCollection"
+          },
+          {
+            "label": "Calls",
+            "value": "12"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Selects DB provider @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L34"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L44"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Qdrant client registration @L56"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Neo4j driver registration @L60"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L64"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook / Epub processing, AI (chat/embeddings), Vector store (Qdrant)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/DependencyInjection.cs:31:1",
+            "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+            "line": 31,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "sourceLine": 31,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/DependencyInjection.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_knowledgerequest_566",
+        "label": "KnowledgeRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Request DTO carrying free-text input and optional ebook context for knowledge APIs.",
+        "responsibility": "Request DTO carrying free-text input and optional ebook context for knowledge APIs.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Text",
+            "value": "string required"
+          },
+          {
+            "label": "EbookId",
+            "value": "Guid?"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:566:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 566,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 566,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_groundednessrequest_567",
+        "label": "GroundednessRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Request DTO for verifying answer groundedness in a context.",
+        "responsibility": "Request DTO for verifying answer groundedness in a context.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Answer",
+            "value": "string required"
+          },
+          {
+            "label": "Context",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:567:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 567,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 567,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_semanticsearchrequest_568",
+        "label": "SemanticSearchRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "DTO for semantic search requests with a limit.",
+        "responsibility": "DTO for semantic search requests with a limit.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "QueryText",
+            "value": "string required"
+          },
+          {
+            "label": "Limit",
+            "value": "int"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:568:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 568,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 568,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_askquestionrequest_569",
+        "label": "AskQuestionRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "DTO for question-asking APIs including optional ebook context and limit.",
+        "responsibility": "DTO for question-asking APIs including optional ebook context and limit.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "3"
+          },
+          {
+            "label": "Question",
+            "value": "string required"
+          },
+          {
+            "label": "EbookId",
+            "value": "Guid?"
+          },
+          {
+            "label": "Limit",
+            "value": "int"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:569:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 569,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 569,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
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+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
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+          },
+          {
+            "label": "Calls",
+            "value": "0"
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+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
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+        ],
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+          {
+            "key": "source",
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+            "tooltip": "Open source"
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
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+          {
+            "label": "Signature",
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+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
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+            "tooltip": "Open source"
+          }
+        ],
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+        "sourceTargetKind": "step",
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Signature",
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+            "label": "Calls",
+            "value": "0"
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+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
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+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!app.Environment.IsDevelopment())",
+        "responsibility": "if (!app.Environment.IsDevelopment())",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!app.Environment.IsDevelopment()"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:237:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 237,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 237,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "responsibility": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(mediator: IMediator) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Depends on IMediator @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores mediator @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_mediator",
+            "value": "IMediator required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:1:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "responsibility": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(mediator: IMediator) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Depends on IMediator @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores mediator @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_mediator",
+            "value": "IMediator required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:14:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 14,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 14,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1",
+        "label": "AuthenticationHeaderHandler",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "DelegatingHandler that attaches JWTs to trusted requests and orchestrates token refresh and retry behavior.",
+        "responsibility": "DelegatingHandler that attaches JWTs to trusted requests and orchestrates token refresh and retry behavior.",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Signature",
+            "value": "(INativeStorageService storageService, IServiceProvider serviceProvider) -> AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Store injected services @L23"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "_storageService",
+            "value": "INativeStorageService required"
+          },
+          {
+            "label": "_serviceProvider",
+            "value": "IServiceProvider required"
+          },
+          {
+            "label": "TokenKey",
+            "value": "const string required"
+          },
+          {
+            "label": "_refreshSemaphore",
+            "value": "SemaphoreSlim required"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:1:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112",
+        "label": "CloneHttpRequestMessageAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Creates a deep-ish clone of an HttpRequestMessage including method, URI, version, headers and buffered content to allow safe retry.",
+        "responsibility": "Creates a deep-ish clone of an HttpRequestMessage including method, URI, version, headers and buffered content to allow safe retry.",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Signature",
+            "value": "(HttpRequestMessage req) -> Task<HttpRequestMessage>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Create new HttpRequestMessage clone @L114"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Copy request content stream and headers @L119"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L119"
+          },
+          {
+            "label": "Action:loop",
+            "value": "Repeats work over a collection or condition @L126"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Copy request headers @L132"
+          },
+          {
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+          },
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+            "value": "ReadingProgress, User, Ebook"
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+        "summary": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
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+            "label": "Action",
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+          },
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+            "label": "Action:repository-read",
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+        "responsibility": "Count words in a string using whitespace separators; returns 0 for null/whitespace.",
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+            "label": "Owner",
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+            "label": "Domain",
+            "value": "Ebook, Chapter/ReadingOrder, ContentBlock (TextSegmentBlock, AiActionTriggerBlock)"
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+          "role": "startup",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_460_460",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_470_470",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_log_472_472",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_473_473",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_477_477",
+          "label": "Evaluates branch condition",
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+          "kind": "action",
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+          "role": "startup",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_480_480",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_483_483",
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+          "role": "startup",
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+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_log_485_485",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_486_486",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
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+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_491_491",
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+          "role": "startup",
+          "layer": "application",
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+          "role": "startup",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_501_501",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_512_512",
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+          "role": "startup",
+          "layer": "application",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_532_532",
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+          "role": "startup",
+          "layer": "application",
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+          "role": "startup",
+          "layer": "application",
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+          "role": "startup",
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+          "role": "startup",
+          "layer": "application",
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+          "label": "StartupValidation (scope check)",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 165,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 165
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_startupvalidation_scope_check_branch_169_169",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 169,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 169
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_startupvalidation_scope_check_guard_clause_169_169",
+          "label": "Fail if infrastructure missing",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 169,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 169
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_startupvalidation_scope_check_validation_171_171",
+          "label": "Validates input or state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 171,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 171
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_ensuredatabaseinitialized_175",
+          "label": "EnsureDatabaseInitialized",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 175,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 175
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_loop_186_186",
+          "label": "Repeats work over a collection or condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 186,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 186
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_branch_190_190",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 190,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 190
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_branch_198_198",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 198,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 198
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_branch_206_206",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 206,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 206
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_206_206",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 206,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 206
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_208_208",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 208,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 208
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_branch_216_216",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 216,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 216
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_216_216",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 216,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 216
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_218_218",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 218,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 218
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_get_api_epub_ebookid_index_249",
+          "label": "GET /api/epub/{ebookId}/{index}",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 249,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 249
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_guard_clause_252_252",
+          "label": "Extracts userId from ClaimsPrincipal",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 252,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 252
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_repository_read_252_252",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 252,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 252
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_guard_clause_255_255",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 255,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 255
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_branch_255_255",
+          "label": "Return Ok on success, BadRequest on failure",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 255,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 255
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_return_258_258",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 258,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 258
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_265",
+          "label": "KnowledgeApi POST /api/knowledge/ (GetKnowledge)",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 265,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 265
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_repository_read_267_267",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 267,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 267
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_guard_clause_267_267",
+          "label": "Resolve tenantId from claims with default",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 267,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 267
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_guard_clause_269_269",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 269,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 269
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_branch_269_269",
+          "label": "Return Ok or BadRequest based on result.IsSuccess",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 269,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 269
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_return_270_270",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 270,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 270
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_knowledgeapi_post_graph_getgraphdataasync_273",
+          "label": "KnowledgeApi POST /graph (GetGraphDataAsync)",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 273,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 273
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_graph_getgraphdataasync_repository_read_275_275",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 275,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 275
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_graph_getgraphdataasync_guard_clause_277_277",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 277,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
+              "line": 277
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_graph_getgraphdataasync_branch_277_277",
+          "label": "Return Ok or BadRequest based on result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 277,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 277
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_graph_getgraphdataasync_return_278_278",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 278,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 278
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_knowledgeapi_post_summary_getsummaryandquizasync_281",
+          "label": "KnowledgeApi POST /summary (GetSummaryAndQuizAsync)",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 281,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 281
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_summary_getsummaryandquizasync_repository_read_283_283",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 283,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 283
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_summary_getsummaryandquizasync_guard_clause_285_285",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 285,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 285
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_summary_getsummaryandquizasync_branch_285_285",
+          "label": "Return Ok or BadRequest based on result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 285,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 285
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_summary_getsummaryandquizasync_return_286_286",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 286,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 286
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_knowledgeapi_post_map_getknowledgemapasync_289",
+          "label": "KnowledgeApi POST /map (GetKnowledgeMapAsync)",
+          "role": "startup",
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+          "label": "CalculateProgress",
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+          "layer": "frontend",
+          "kind": "method",
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+          "kind": "action",
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+              "path": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
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+          "layer": "frontend",
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+          "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
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+          "NexusReader.Infrastructure/Services/KnowledgeService.cs",
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+          "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+          "NexusReader.Infrastructure/Services/BookStorageService.cs",
+          "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+        ]
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Messaging__ICommand.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Messaging__ICommand.cs.json
new file mode 100644
index 0000000..928f45b
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Messaging__ICommand.cs.json
@@ -0,0 +1 @@
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diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Messaging__ICommandHandler.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Messaging__ICommandHandler.cs.json
new file mode 100644
index 0000000..e41f785
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Messaging__ICommandHandler.cs.json
@@ -0,0 +1 @@
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diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Messaging__IQuery.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Messaging__IQuery.cs.json
new file mode 100644
index 0000000..82b0959
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Messaging__IQuery.cs.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Messaging__IQueryHandler.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Messaging__IQueryHandler.cs.json
new file mode 100644
index 0000000..0731a44
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Messaging__IQueryHandler.cs.json
@@ -0,0 +1 @@
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diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Messaging__ISyncBroadcaster.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Messaging__ISyncBroadcaster.cs.json
new file mode 100644
index 0000000..79997d5
--- /dev/null
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@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Persistence__IEbookRepository.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Persistence__IEbookRepository.cs.json
new file mode 100644
index 0000000..bd2c45f
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Persistence__IEbookRepository.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Abstractions/Persistence/IEbookRepository.cs","purpose":"Defines the application-layer abstraction for Ebook and Author persistence operations so higher layers can work without a direct dependency on EF Core or a specific data implementation.","classification":{"role":"repository","layer":"application","confidence":0.9,"evidence":["Repository naming pattern","Namespace: NexusReader.Application.Abstractions.Persistence","XML comment: Abstraction for Ebook and Author persistence operations","Interface name IEbookRepository indicates repository pattern"]},"className":"IEbookRepository","methods":[{"name":"FindAuthorByNameAsync","line":14,"endLine":14,"signature":"(name: string, cancellationToken: CancellationToken = default) -> Task<Author?>","purpose":"Asynchronously looks up an Author by name using a case-insensitive comparison.","calls":[],"actions":[{"id":"async_14","kind":"mapping","label":"async boundary","line":14,"detail":"Returns Task<Author?> to be implemented by concrete repository (async behavior expected).","visibility":"detail-only","confidence":0.7},{"id":"query_14","kind":"mapping","label":"Case-insensitive author lookup","line":14,"detail":"Declared contract to query the underlying store for an Author by name (case-insensitive).","visibility":"detail-only","confidence":0.7},{"id":"findauthorbynameasync_repository-read_14_0","kind":"repository-read","label":"Reads repository or persistence state","line":14,"detail":"Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default);","visibility":"secondary-visible","confidence":0.86}]},{"name":"AddAuthor","line":19,"endLine":19,"signature":"(author: Author) -> void","purpose":"Stages a new Author for insertion into the repository (does not persist immediately).","calls":[],"actions":[{"id":"staged-write_19","kind":"mapping","label":"Stage author for insertion","line":19,"detail":"Contract indicates the author is added to a staging/track list; persistence occurs on SaveChangesAsync.","visibility":"detail-only","confidence":0.7}]},{"name":"AddEbook","line":24,"endLine":24,"signature":"(ebook: Ebook) -> void","purpose":"Stages a new Ebook for insertion into the repository (does not persist immediately).","calls":[],"actions":[{"id":"staged-write_24","kind":"mapping","label":"Stage ebook for insertion","line":24,"detail":"Contract indicates the ebook is added to a staging/track list; persistence occurs on SaveChangesAsync.","visibility":"detail-only","confidence":0.7}]},{"name":"SaveChangesAsync","line":29,"endLine":29,"signature":"(cancellationToken: CancellationToken = default) -> Task<int>","purpose":"Persists all staged changes to the underlying store and returns number of affected records.","calls":[],"actions":[{"id":"async_29","kind":"mapping","label":"async boundary","line":29,"detail":"Returns Task<int> indicating asynchronous commit semantics.","visibility":"detail-only","confidence":0.7},{"id":"persist_29","kind":"mapping","label":"Commit staged changes","line":29,"detail":"Declared contract to flush staged AddAuthor/AddEbook operations to the data store and return an int result.","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"IEbookRepository","kind":"interface","line":9,"purpose":"Application-layer persistence abstraction for Authors and Ebooks to avoid direct EF Core dependency.","fields":[{"name":"FindAuthorByNameAsync","type":"Task<Author?>","required":true,"line":14,"description":"Asynchronous method to find an Author by name (case-insensitive)."},{"name":"AddAuthor","type":"void","required":true,"line":19,"description":"Stages an Author for insertion."},{"name":"AddEbook","type":"void","required":true,"line":24,"description":"Stages an Ebook for insertion."},{"name":"SaveChangesAsync","type":"Task<int>","required":true,"line":29,"description":"Commits staged changes to the store and returns number of affected records."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Domain/Entities (referenced via using NexusReader.Domain.Entities)"],"patterns":["Repository"],"domainConcepts":["Author","Ebook"],"keyDetails":"This interface defines a repository contract in the Application layer for author/ebook persistence: query by name (case-insensitive), stage additions, and an explicit SaveChangesAsync to commit staged changes. 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IBillingService.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IBillingService.cs.json
new file mode 100644
index 0000000..76281c4
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IBillingService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Abstractions/Services/IBillingService.cs","purpose":"Defines an application-layer billing service contract for handling subscription lifecycle events (updated/deleted) using asynchronous results.","classification":{"role":"service","layer":"application","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","File declares IBillingService in Application.Abstractions.Services namespace (line 4-6)","Methods represent application-level operations for subscription events (lines 8-9)"]},"className":"IBillingService","methods":[{"name":"HandleSubscriptionUpdatedAsync","line":8,"endLine":8,"signature":"(customerEmail: string, stripeProductId: string) -> Task<Result>","purpose":"Contract method to process a subscription update for a customer (e.g., map Stripe product change to app state) and return an operation Result asynchronously.","calls":[],"actions":[{"id":"abstract-method_8","kind":"mapping","label":"Declaration of async handler for subscription-updated events","line":8,"detail":"Interface method only; implementation must handle orchestration, persistence, notifications, or external calls.","visibility":"detail-only","confidence":0.7},{"id":"returns_8","kind":"mapping","label":"Returns a FluentResults.Result wrapped in Task","line":8,"detail":"Task<Result> indicates success/failure reporting from implementations.","visibility":"detail-only","confidence":0.7}]},{"name":"HandleSubscriptionDeletedAsync","line":9,"endLine":9,"signature":"(customerEmail: string) -> Task<Result>","purpose":"Contract method to process a subscription deletion for a customer and return an operation Result asynchronously.","calls":[],"actions":[{"id":"abstract-method_9","kind":"mapping","label":"Declaration of async handler for subscription-deleted events","line":9,"detail":"Interface method only; implementation must handle cleanup, persistence updates, or downstream notifications.","visibility":"detail-only","confidence":0.7},{"id":"returns_9","kind":"mapping","label":"Returns a FluentResults.Result wrapped in Task","line":9,"detail":"Task<Result> indicates success/failure reporting from implementations.","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"IBillingService","kind":"interface","line":6,"purpose":"Service contract for handling billing/subscription lifecycle events (update/delete).","fields":[{"name":"HandleSubscriptionUpdatedAsync","type":"Task<Result>","required":true,"line":8,"description":"Async operation to handle subscription updates given customer email and Stripe product id."},{"name":"HandleSubscriptionDeletedAsync","type":"Task<Result>","required":true,"line":9,"description":"Async operation to handle subscription deletions given customer email."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Domain.Entities (imported at line 1)","FluentResults (imported at line 2)"],"patterns":["Service Interface","Dependency Injection (interface abstraction for implementations)"],"domainConcepts":["Billing","Subscription","Customer","Stripe (stripeProductId)"],"keyDetails":"This file is an application-layer abstraction defining two async handlers that implementations must use to reconcile subscription updates/deletions; it returns FluentResults to surface success/failure.","orchestrationMethods":[],"typedContracts":[{"name":"IBillingService","kind":"interface","line":6,"fieldCount":2,"evidencePaths":["NexusReader.Application/Abstractions/Services/IBillingService.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"IBillingService","line":6,"summary":"interface with 2 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Abstractions/Services/IBillingService.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IBookStorageService.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IBookStorageService.cs.json
new file mode 100644
index 0000000..7456192
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IBookStorageService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Abstractions/Services/IBookStorageService.cs","purpose":"Defines an application-layer abstraction for persisting ebook and cover image files (byte[] or Stream) and returning their relative path/URL; cover save methods may return null when no data is provided.","classification":{"role":"service","layer":"application","confidence":0.85,"evidence":["Service naming pattern","Application/service path heuristic","namespace NexusReader.Application.Abstractions.Services (line 1) indicates an application-layer abstraction","File declares IBookStorageService interface with SaveEbookAsync/SaveCoverAsync methods (lines 6-29)"]},"className":"IBookStorageService","methods":[{"name":"SaveEbookAsync","line":11,"endLine":11,"signature":"(data: byte[], fileName: string) -> Task<string>","purpose":"Saves an ebook provided as a byte array and returns its relative path/URL.","calls":[],"actions":[{"id":"return_11","kind":"return","label":"returns path/url","line":11,"detail":"Returns Task<string> containing the relative path/URL of the saved ebook","visibility":"detail-only","confidence":0.7}]},{"name":"SaveEbookAsync","line":16,"endLine":16,"signature":"(data: Stream, fileName: string) -> Task<string>","purpose":"Saves an ebook provided as a Stream and returns its relative path/URL.","calls":[],"actions":[{"id":"return_16","kind":"return","label":"returns path/url","line":16,"detail":"Returns Task<string> containing the relative path/URL of the saved ebook","visibility":"detail-only","confidence":0.7}]},{"name":"SaveCoverAsync","line":22,"endLine":22,"signature":"(data: byte[], fileName: string) -> Task<string?>","purpose":"Saves a cover image provided as a byte array and returns its relative path/URL; may return null if no cover data.","calls":[],"actions":[{"id":"nullable-return_19","kind":"mapping","label":"may return null when no data provided","line":19,"detail":"Method returns Task<string?>; documentation notes null is returned if no cover data is provided","visibility":"detail-only","confidence":0.7}]},{"name":"SaveCoverAsync","line":28,"endLine":28,"signature":"(data: Stream, fileName: string) -> Task<string?>","purpose":"Saves a cover image provided as a Stream and returns its relative path/URL; may return null if no cover data.","calls":[],"actions":[{"id":"nullable-return_25","kind":"mapping","label":"may return null when no data provided","line":25,"detail":"Method returns Task<string?>; documentation notes null is returned if no cover data is provided","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"IBookStorageService","kind":"interface","line":6,"purpose":"Abstraction for persisting ebook and cover files and returning their storage path/URLs.","fields":[{"name":"SaveEbookAsync(byte[])","type":"Task<string>","required":true,"line":11,"description":"Saves ebook from byte array and returns relative path/URL"},{"name":"SaveEbookAsync(Stream)","type":"Task<string>","required":true,"line":16,"description":"Saves ebook from stream and returns relative path/URL"},{"name":"SaveCoverAsync(byte[])","type":"Task<string?>","required":true,"line":22,"description":"Saves cover from byte array and returns relative path/URL or null if no data"},{"name":"SaveCoverAsync(Stream)","type":"Task<string?>","required":true,"line":28,"description":"Saves cover from stream and returns relative path/URL or null if no data"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Storage Abstraction","Adapter"],"domainConcepts":["Ebook","Cover","File Storage","Path/URL"],"keyDetails":"Application-layer abstraction for ebook and cover persistence; supports both byte[] and Stream overloads; cover save methods explicitly allow null when no data is provided.","orchestrationMethods":[],"typedContracts":[{"name":"IBookStorageService","kind":"interface","line":6,"fieldCount":4,"evidencePaths":["NexusReader.Application/Abstractions/Services/IBookStorageService.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"IBookStorageService","line":6,"summary":"interface with 4 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Abstractions/Services/IBookStorageService.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IEpubMetadataExtractor.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IEpubMetadataExtractor.cs.json
new file mode 100644
index 0000000..f9e7e70
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IEpubMetadataExtractor.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Abstractions/Services/IEpubMetadataExtractor.cs","purpose":"Defines an application-layer service abstraction for extracting metadata from an EPUB stream, returning a Result-wrapped LocalEpubMetadata.","classification":{"role":"service","layer":"application","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Namespace: NexusReader.Application.Abstractions.Services","Type is an interface named IEpubMetadataExtractor and lives in Application project","Method returns application DTO LocalEpubMetadata (imported from Queries.Reader)"]},"className":"IEpubMetadataExtractor","methods":[{"name":"ExtractMetadataAsync","line":9,"endLine":9,"signature":"(epubStream: Stream) -> Task<Result<LocalEpubMetadata>>","purpose":"Asynchronously extracts EPUB metadata from the provided stream and returns it wrapped in a FluentResults Result.","calls":[],"actions":[{"id":"async-signature_9","kind":"mapping","label":"Asynchronous extraction contract","line":9,"detail":"Returns Task<Result<LocalEpubMetadata>> to signal success/failure and carry metadata","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application/Queries/Reader (LocalEpubMetadata)","FluentResults","System.IO"],"patterns":["Service Interface","Abstraction"],"domainConcepts":["EPUB","Metadata"],"keyDetails":"Small application-layer interface specifying a single async operation to extract EPUB metadata; implementation is expected elsewhere in the Application/Infrastructure layers.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IEpubReader.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IEpubReader.cs.json
new file mode 100644
index 0000000..153c43a
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IEpubReader.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Abstractions/Services/IEpubReader.cs","purpose":"Defines an application-level abstraction for reading and parsing EPUB content for a specific ebook and chapter, exposing a single async operation that returns a Result-wrapped ReaderPageViewModel.","classification":{"role":"service","layer":"application","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","namespace NexusReader.Application.Abstractions.Services","public interface IEpubReader with a GetEpubContentAsync method"]},"className":"IEpubReader","methods":[{"name":"GetEpubContentAsync","line":18,"endLine":22,"signature":"(ebookId: Guid, chapterIndex: int, userId: string? = null, cancellationToken: CancellationToken = default) -> Task<Result<ReaderPageViewModel>>","purpose":"Retrieve content blocks for a specific ebook chapter, returning a Result that wraps a ReaderPageViewModel; supports optional tenant userId and cancellation.","calls":[],"actions":[{"id":"parameter_16","kind":"mapping","label":"tenant-isolation-hint","line":16,"detail":"userId parameter is documented as used for tenant isolation in DB lookup (implementation responsibility).","visibility":"detail-only","confidence":0.7},{"id":"return_18","kind":"return","label":"result-wrapper","line":18,"detail":"Returns a FluentResults.Result wrapping ReaderPageViewModel to convey success/failure and payload.","visibility":"detail-only","confidence":0.7},{"id":"parameter_22","kind":"mapping","label":"cancellation-token","line":22,"detail":"Accepts CancellationToken to allow caller-driven cancellation of the async read.","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"IEpubReader","kind":"interface","line":9,"purpose":"Abstraction for EPUB reading/parsing service used by application code to fetch chapter content.","fields":[{"name":"GetEpubContentAsync","type":"Task<Result<ReaderPageViewModel>>","required":true,"line":18,"description":"Async method to get EPUB chapter content by ebookId and chapterIndex, with optional userId and cancellationToken."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Queries.Reader (ReaderPageViewModel)","FluentResults (Result<T>)"],"patterns":["Abstraction/Service Interface"],"domainConcepts":["Ebook","Chapter","TenantIsolation","ReaderPage (content blocks)"],"keyDetails":"Single-method interface that returns a FluentResults.Result of ReaderPageViewModel; userId is explicitly documented for tenant isolation and a CancellationToken is supported for cooperative cancellation.","orchestrationMethods":[],"typedContracts":[{"name":"IEpubReader","kind":"interface","line":9,"fieldCount":1,"evidencePaths":["NexusReader.Application/Abstractions/Services/IEpubReader.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"IEpubReader","line":9,"summary":"interface with 1 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Abstractions/Services/IEpubReader.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IIdentityService.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IIdentityService.cs.json
new file mode 100644
index 0000000..2ef47e1
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IIdentityService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Abstractions/Services/IIdentityService.cs","purpose":"Defines the application-layer contract for identity/authentication operations (register, login, logout, profile, token refresh) and an event to notify consumers when authentication state is invalidated.","classification":{"role":"service","layer":"application","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Namespace: NexusReader.Application.Abstractions.Services","Interface named IIdentityService with auth-related methods (RegisterAsync, LoginAsync, LogoutAsync, GetProfileAsync, RefreshTokenAsync)"]},"className":"IIdentityService","methods":[{"name":"OnStateInvalidated","line":8,"endLine":8,"signature":"event Func<Task>? -> void (event declaration)","purpose":"Event that implementations raise/trigger when the identity/authentication state becomes invalid and consumers should refresh/clear state.","calls":[],"actions":[{"id":"event-declaration_8","kind":"mapping","label":"Authentication state invalidation notification","line":8,"detail":"An nullable Func<Task> event that subscribers can attach to; raised by implementations when auth state is invalidated.","visibility":"detail-only","confidence":0.7}]},{"name":"RegisterAsync","line":9,"endLine":9,"signature":"(email: string, password: string) -> Task<Result>","purpose":"Contract to register a new user account using email and password, returning a FluentResults Result indicating success/failure.","calls":[],"actions":[{"id":"contract_9","kind":"mapping","label":"Registration operation contract","line":9,"detail":"Interface method—implementation should handle validation, persistence, and result mapping.","visibility":"detail-only","confidence":0.7}]},{"name":"LoginAsync","line":10,"endLine":10,"signature":"(email: string, password: string, rememberMe: bool = false) -> Task<Result>","purpose":"Contract to authenticate a user with credentials and optional persistence (rememberMe), returning success/failure result.","calls":[],"actions":[{"id":"contract_10","kind":"mapping","label":"Login operation contract","line":10,"detail":"Interface method—implementation expected to perform credential verification, session/token issuance, and optionally persistent login.","visibility":"detail-only","confidence":0.7}]},{"name":"LogoutAsync","line":11,"endLine":11,"signature":"() -> Task<Result>","purpose":"Contract to sign out the current user/session and perform any server/client cleanup, returning a result.","calls":[],"actions":[{"id":"contract_11","kind":"mapping","label":"Logout operation contract","line":11,"detail":"Interface method—implementation should revoke tokens/clear session and potentially raise OnStateInvalidated.","visibility":"detail-only","confidence":0.7}]},{"name":"GetProfileAsync","line":12,"endLine":12,"signature":"() -> Task<Result<UserProfileDto>>","purpose":"Contract to retrieve the current user's profile data wrapped in a FluentResults Result.","calls":[],"actions":[{"id":"contract_12","kind":"mapping","label":"Profile retrieval contract","line":12,"detail":"Interface method—implementation should read user profile data from user store or cache and return it.","visibility":"detail-only","confidence":0.7}]},{"name":"RefreshTokenAsync","line":13,"endLine":13,"signature":"() -> Task<Result>","purpose":"Contract to refresh authentication tokens (e.g., access/refresh tokens) and return operation result.","calls":[],"actions":[{"id":"contract_13","kind":"mapping","label":"Token refresh contract","line":13,"detail":"Interface method—implementation should attempt token refresh, handle failures, and possibly raise OnStateInvalidated on unrecoverable errors.","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"IIdentityService","kind":"interface","line":6,"purpose":"Application-layer abstraction that specifies authentication/identity operations and a state-invalidated event for consumers.","fields":[{"name":"OnStateInvalidated","type":"Func<Task>?","required":false,"line":8,"description":"Event invoked by implementations to notify subscribers when auth/identity state must be refreshed or cleared."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.DTOs.User (UserProfileDto)","FluentResults (Result)"],"patterns":["Service Interface","Authentication/Identity"],"domainConcepts":["User","Authentication","Token","Session"],"keyDetails":"Interface-only file—no implementation logic present. It defines the contract for authentication flows and an event to notify consumers about state invalidation; implementations are responsible for validation, persistence, token management, and raising the event.","orchestrationMethods":[],"typedContracts":[{"name":"IIdentityService","kind":"interface","line":6,"fieldCount":1,"evidencePaths":["NexusReader.Application/Abstractions/Services/IIdentityService.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"IIdentityService","line":6,"summary":"interface with 1 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Abstractions/Services/IIdentityService.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IKnowledgeService.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IKnowledgeService.cs.json
new file mode 100644
index 0000000..5c64d64
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IKnowledgeService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Abstractions/Services/IKnowledgeService.cs","purpose":"Defines the application-level contract for knowledge/AI related operations (semantic search, summarization, groundedness verification, Q&A) used by other layers to interact with AI/knowledge capabilities.","classification":{"role":"service","layer":"application","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Namespace: NexusReader.Application.Abstractions.Services","Interface named IKnowledgeService exposing async operations for knowledge/AI","Methods return FluentResults.Result<T> and reference DTOs in NexusReader.Application.DTOs.AI"]},"className":"IKnowledgeService","methods":[{"name":"GetKnowledgeAsync","line":8,"endLine":8,"signature":"(text: string, tenantId: string, ebookId: Guid? = null, cancellationToken: CancellationToken = default) -> Task<Result<KnowledgePacket>>","purpose":"Retrieve a KnowledgePacket for the supplied text and tenant, optionally scoped to an ebook.","calls":[],"actions":[]},{"name":"GetGraphDataAsync","line":9,"endLine":9,"signature":"(text: string, tenantId: string, ebookId: Guid? = null, cancellationToken: CancellationToken = default) -> Task<Result<KnowledgePacket>>","purpose":"Produce graph-structured knowledge data for the given text and tenant (optionally ebook-scoped).","calls":[],"actions":[]},{"name":"GetKnowledgeMapAsync","line":10,"endLine":10,"signature":"(text: string, tenantId: string, ebookId: Guid? = null, cancellationToken: CancellationToken = default) -> Task<Result<KnowledgePacket>>","purpose":"Generate a knowledge map representation for the input text for the specified tenant/ebook.","calls":[],"actions":[]},{"name":"GetSummaryAndQuizAsync","line":11,"endLine":11,"signature":"(text: string, tenantId: string, ebookId: Guid? = null, cancellationToken: CancellationToken = default) -> Task<Result<KnowledgePacket>>","purpose":"Create a summarized version of the text and accompanying quiz content for the tenant/ebook.","calls":[],"actions":[]},{"name":"GetRelevantContextAsync","line":12,"endLine":12,"signature":"(query: string, tenantId: string, cancellationToken: CancellationToken = default) -> Task<Result<List<RelevantContext>>>","purpose":"Return a list of relevant context entries for a query within the tenant scope (used for context retrieval/augmentation).","calls":[],"actions":[]},{"name":"VerifyGroundednessAsync","line":13,"endLine":13,"signature":"(answer: string, context: string, tenantId: string, cancellationToken: CancellationToken = default) -> Task<Result<GroundednessResult>>","purpose":"Assess whether an answer is grounded in provided context and return a scored rationale.","calls":[],"actions":[]},{"name":"SearchLibrarySemanticallyAsync","line":14,"endLine":14,"signature":"(queryText: string, tenantId: string, limit: int, cancellationToken: CancellationToken = default) -> Task<Result<List<SemanticSearchResultDto>>>","purpose":"Perform semantic search against the library for the tenant, returning up to a specified limit of results.","calls":[],"actions":[]},{"name":"AskQuestionAsync","line":15,"endLine":15,"signature":"(question: string, tenantId: string, ebookId: Guid? = null, limit: int = 5, cancellationToken: CancellationToken = default) -> Task<Result<GroundedResponseDto>>","purpose":"Ask a question in the tenant/optional ebook context and receive a grounded response (with limit for candidate/context size).","calls":[],"actions":[]},{"name":"ClearCacheAsync","line":16,"endLine":16,"signature":"(cancellationToken: CancellationToken = default) -> Task<Result>","purpose":"Clear any knowledge/AI related caches used by the implementation.","calls":[],"actions":[]}],"types":[{"name":"GroundednessResult","kind":"dto","line":19,"purpose":"Represents the result of a groundedness check: score, textual rationale, and a boolean grounded flag.","fields":[{"name":"Score","type":"float","required":true,"line":19,"description":"Numeric groundedness score"},{"name":"Rationale","type":"string","required":true,"line":19,"description":"Explanation of the grounding assessment"},{"name":"IsGrounded","type":"bool","required":true,"line":19,"description":"Whether the answer is considered grounded in the context"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["FluentResults (library)","NexusReader.Application.DTOs.AI (DTO namespace referenced)"],"patterns":["Service Interface","Result-wrapping (FluentResults)"],"domainConcepts":["KnowledgePacket","Groundedness","Semantic Search","RelevantContext","GroundedResponse"],"keyDetails":"This file is an abstraction-level interface describing async knowledge/AI operations across tenants and optional ebook scoping; implementations will use FluentResults.Result<T> for outcome modeling and DTOs from the AI DTO namespace.","orchestrationMethods":[],"typedContracts":[{"name":"GroundednessResult","kind":"dto","line":19,"fieldCount":3,"evidencePaths":["NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"GroundednessResult","line":19,"summary":"dto with 3 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__INativeStorageService.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__INativeStorageService.cs.json
new file mode 100644
index 0000000..7ae1107
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__INativeStorageService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Abstractions/Services/INativeStorageService.cs","purpose":"Defines an application-level abstraction for synchronous/asynchronous native (including secure) key/value storage operations across platforms.","classification":{"role":"service","layer":"application","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Namespace NexusReader.Application.Abstractions.Services","Interface named INativeStorageService exposes storage operations (Save/Get/Remove) including secure variants"]},"className":"INativeStorageService","methods":[{"name":"SaveStringAsync","line":7,"endLine":7,"signature":"(key: string, value: string) -> Task<Result>","purpose":"Persist a string value by key in native storage.","calls":[],"actions":[{"id":"declaration-only_7","kind":"mapping","label":"Interface method declaration","line":7,"detail":"No runtime body; contract for implementing classes","visibility":"detail-only","confidence":0.7}]},{"name":"GetStringAsync","line":8,"endLine":8,"signature":"(key: string) -> Task<Result<string?>>","purpose":"Retrieve an optional string value by key from native storage.","calls":[],"actions":[{"id":"declaration-only_8","kind":"mapping","label":"Interface method declaration","line":8,"detail":"Returns Result wrapper with nullable string payload","visibility":"detail-only","confidence":0.7}]},{"name":"SaveBoolAsync","line":9,"endLine":9,"signature":"(key: string, value: bool) -> Task<Result>","purpose":"Persist a boolean value by key in native storage.","calls":[],"actions":[{"id":"declaration-only_9","kind":"mapping","label":"Interface method declaration","line":9,"detail":"Contract for saving booleans","visibility":"detail-only","confidence":0.7}]},{"name":"GetBoolAsync","line":10,"endLine":10,"signature":"(key: string, defaultValue: bool = false) -> Task<Result<bool>>","purpose":"Retrieve a boolean value by key, returning a default if absent, wrapped in a Result.","calls":[],"actions":[{"id":"declaration-only_10","kind":"mapping","label":"Interface method declaration with default parameter","line":10,"detail":"Includes defaultValue parameter to indicate fallback behavior for implementers","visibility":"detail-only","confidence":0.7}]},{"name":"RemoveAsync","line":11,"endLine":11,"signature":"(key: string) -> Task<Result>","purpose":"Remove an entry by key from native storage.","calls":[],"actions":[{"id":"declaration-only_11","kind":"mapping","label":"Interface method declaration","line":11,"detail":"Contract for deletion/removal","visibility":"detail-only","confidence":0.7}]},{"name":"SaveSecureString","line":13,"endLine":13,"signature":"(key: string, value: string) -> Task<Result>","purpose":"Persist a string securely (platform secure storage) by key.","calls":[],"actions":[{"id":"declaration-only_13","kind":"mapping","label":"Interface method declaration for secure storage","line":13,"detail":"Indicates secure storage variant for sensitive data","visibility":"detail-only","confidence":0.7}]},{"name":"GetSecureString","line":14,"endLine":14,"signature":"(key: string) -> Task<Result<string?>>","purpose":"Retrieve an optional securely stored string by key.","calls":[],"actions":[{"id":"declaration-only_14","kind":"mapping","label":"Interface method declaration for secure retrieval","line":14,"detail":"Returns Result wrapper with nullable string payload","visibility":"detail-only","confidence":0.7}]},{"name":"RemoveSecureAsync","line":15,"endLine":15,"signature":"(key: string) -> Task<Result>","purpose":"Remove a securely stored entry by key.","calls":[],"actions":[{"id":"declaration-only_15","kind":"mapping","label":"Interface method declaration for secure removal","line":15,"detail":"Contract for removing secure entries","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"INativeStorageService","kind":"interface","line":5,"purpose":"Contract specifying async key/value native storage operations including secure variants for cross-platform implementations.","fields":[{"name":"SaveStringAsync","type":"Task<Result>","required":true,"line":7,"description":"Save a string value by key"},{"name":"GetStringAsync","type":"Task<Result<string?>>","required":true,"line":8,"description":"Get a nullable string value by key"},{"name":"SaveBoolAsync","type":"Task<Result>","required":true,"line":9,"description":"Save a boolean value by key"},{"name":"GetBoolAsync","type":"Task<Result<bool>>","required":true,"line":10,"description":"Get a boolean value by key with a default fallback"},{"name":"RemoveAsync","type":"Task<Result>","required":true,"line":11,"description":"Remove a stored entry by key"},{"name":"SaveSecureString","type":"Task<Result>","required":true,"line":13,"description":"Save sensitive string data in secure storage"},{"name":"GetSecureString","type":"Task<Result<string?>>","required":true,"line":14,"description":"Retrieve sensitive string data from secure storage"},{"name":"RemoveSecureAsync","type":"Task<Result>","required":true,"line":15,"description":"Remove sensitive entry from secure storage"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Interface","Abstraction","Adapter"],"domainConcepts":["Key/value storage","Secure storage","Configuration/Preferences"],"keyDetails":"A lightweight application-level abstraction (interface) intended for platform-specific implementations to provide persistent and secure key/value storage with Result-wrapped async operations.","orchestrationMethods":[],"typedContracts":[{"name":"INativeStorageService","kind":"interface","line":5,"fieldCount":8,"evidencePaths":["NexusReader.Application/Abstractions/Services/INativeStorageService.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"INativeStorageService","line":5,"summary":"interface with 8 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Abstractions/Services/INativeStorageService.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IPlatformService.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IPlatformService.cs.json
new file mode 100644
index 0000000..9e0148c
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Abstractions__Services__IPlatformService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Abstractions/Services/IPlatformService.cs","purpose":"Defines an application-level platform abstraction for device capabilities (vibration) and a small device info model (DeviceContext) used by UI/client layers to adapt behavior per device.","classification":{"role":"service","layer":"application","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Namespace NexusReader.Application.Abstractions.Services indicates an application-level service abstraction","File exposes an interface IPlatformService and types representing device context and enums for device/orientation"]},"className":"IPlatformService","methods":[{"name":"VibrateSuccessAsync","line":7,"endLine":7,"signature":"() -> Task<Result>","purpose":"Requests a short platform-specific 'success' vibration; returns a Result indicating success/failure.","calls":[],"actions":[{"id":"return_7","kind":"return","label":"async result","line":7,"detail":"Task<Result> returned by implementation","visibility":"detail-only","confidence":0.7}]},{"name":"VibrateErrorAsync","line":8,"endLine":8,"signature":"() -> Task<Result>","purpose":"Requests a short platform-specific 'error' vibration; returns a Result indicating success/failure.","calls":[],"actions":[{"id":"return_8","kind":"return","label":"async result","line":8,"detail":"Task<Result> returned by implementation","visibility":"detail-only","confidence":0.7}]},{"name":"VibrateAsync","line":9,"endLine":9,"signature":"(milliseconds: int) -> Task<Result>","purpose":"Requests a platform vibration for the specified duration in milliseconds; returns a Result indicating success/failure.","calls":[],"actions":[{"id":"return_9","kind":"return","label":"async result","line":9,"detail":"Task<Result> returned by implementation","visibility":"detail-only","confidence":0.7},{"id":"parameter_9","kind":"mapping","label":"milliseconds","line":9,"detail":"duration passed to platform implementation","visibility":"detail-only","confidence":0.7}]},{"name":"GetDeviceContext","line":10,"endLine":10,"signature":"() -> Result<DeviceContext>","purpose":"Retrieves current device characteristics (model, manufacturer, type, orientation) wrapped in a Result.","calls":[],"actions":[{"id":"return_10","kind":"return","label":"synchronous result","line":10,"detail":"Result<DeviceContext> returned by implementation","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"DeviceContext","kind":"dto","line":13,"purpose":"Represents device metadata (model, manufacturer, device type, display orientation) for platform-aware logic.","fields":[{"name":"Model","type":"string","required":true,"line":14,"description":"Device model identifier"},{"name":"Manufacturer","type":"string","required":true,"line":15,"description":"Device manufacturer"},{"name":"DeviceType","type":"DeviceType","required":true,"line":16,"description":"High-level category of device (Phone/Tablet/Desktop/Unknown)"},{"name":"Orientation","type":"DisplayOrientation","required":true,"line":17,"description":"Current display orientation"}]},{"name":"DeviceType","kind":"enum","line":20,"purpose":"Enumerates device categories used to adapt UI/behavior.","fields":[{"name":"Unknown","type":"DeviceType","required":true,"line":22,"description":"Unclassified device"},{"name":"Phone","type":"DeviceType","required":true,"line":23,"description":"Phone-sized device"},{"name":"Tablet","type":"DeviceType","required":true,"line":24,"description":"Tablet-sized device"},{"name":"Desktop","type":"DeviceType","required":true,"line":25,"description":"Desktop device"}]},{"name":"DisplayOrientation","kind":"enum","line":28,"purpose":"Enumerates possible screen orientations to allow layout/behavior adjustments.","fields":[{"name":"Unknown","type":"DisplayOrientation","required":true,"line":30,"description":"Orientation not determined"},{"name":"Portrait","type":"DisplayOrientation","required":true,"line":31,"description":"Portrait orientation"},{"name":"Landscape","type":"DisplayOrientation","required":true,"line":32,"description":"Landscape orientation"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Service Interface","Platform Abstraction / Adapter"],"domainConcepts":["Device","Vibration","DisplayOrientation"],"keyDetails":"Pure abstraction: interface declares vibration operations and a device-context DTO; implementations will be platform-specific (WASM/MAUI/desktop) and are responsible for actual vibration and device info retrieval.","orchestrationMethods":[],"typedContracts":[{"name":"DeviceContext","kind":"dto","line":13,"fieldCount":4,"evidencePaths":["NexusReader.Application/Abstractions/Services/IPlatformService.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"DeviceContext","line":13,"summary":"dto with 4 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Abstractions/Services/IPlatformService.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Commands__AI__VerifyGroundednessCommand.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Commands__AI__VerifyGroundednessCommand.cs.json
new file mode 100644
index 0000000..4e2b2d3
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Commands__AI__VerifyGroundednessCommand.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs","purpose":"Defines a MediatR command (VerifyGroundednessCommand) and its handler which delegates groundedness verification to an IKnowledgeService implementation.","classification":{"role":"handler","layer":"application","confidence":0.9,"evidence":["Command pattern","Contains a record that implements IRequest<Result<GroundednessResult>>","Handler class implements MediatR IRequestHandler and calls IKnowledgeService"]},"className":"VerifyGroundednessCommandHandler","methods":[{"name":"VerifyGroundednessCommandHandler","line":13,"endLine":16,"signature":"(knowledgeService: IKnowledgeService) -> VerifyGroundednessCommandHandler","purpose":"Constructs the handler and stores the required IKnowledgeService dependency for later calls.","calls":[],"actions":[{"id":"dependency-injection_13","kind":"mapping","label":"Receives IKnowledgeService via constructor","line":13,"detail":"constructor parameter injection","visibility":"detail-only","confidence":0.7},{"id":"assign-field_15","kind":"mapping","label":"Assigns injected service to private field","line":15,"detail":"_knowledgeService = knowledgeService;","visibility":"detail-only","confidence":0.7}]},{"name":"Handle","line":18,"endLine":21,"signature":"(request: VerifyGroundednessCommand, cancellationToken: CancellationToken) -> Task<Result<GroundednessResult>>","purpose":"Handles the VerifyGroundednessCommand by delegating to IKnowledgeService.VerifyGroundednessAsync and returning its result.","calls":[{"targetFile":"NexusReader.Application/Abstractions/Services/IKnowledgeService.cs","targetMethod":"VerifyGroundednessAsync","callLine":20,"paramSummary":"request.Answer, request.Context, request.TenantId, cancellationToken"}],"actions":[{"id":"external-call_20","kind":"external-call","label":"Delegates verification to knowledge service","line":20,"detail":"await _knowledgeService.VerifyGroundednessAsync(...)","visibility":"detail-only","confidence":0.7},{"id":"handle_return_20_0","kind":"return","label":"Returns result","line":20,"detail":"return await _knowledgeService.VerifyGroundednessAsync(request.Answer, request.Context, request.TenantId, cancellationToken);","visibility":"detail-only","confidence":0.7},{"id":"return_20","kind":"return","label":"Returns service result directly","line":20,"detail":"returns Task<Result<GroundednessResult>> from the knowledge service","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"VerifyGroundednessCommand","kind":"command","line":7,"purpose":"Carries the answer, context, and tenant id for a groundedness verification request through MediatR.","fields":[{"name":"Answer","type":"string","required":true,"line":7,"description":"The answer text to verify"},{"name":"Context","type":"string","required":true,"line":7,"description":"Contextual information used for verification"},{"name":"TenantId","type":"string","required":true,"line":7,"description":"Tenant identifier for scoped verification"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"],"patterns":["Mediator (MediatR) handler","Dependency Injection"],"domainConcepts":["Groundedness","AI verification","KnowledgeService"],"keyDetails":"This file provides a thin MediatR handler that simply forwards the request to an IKnowledgeService; no branching, validation, or local persistence occurs here.","orchestrationMethods":[{"name":"Handle","line":18,"confidence":0.65,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["external-call","return"],"evidencePaths":["NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs","NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"]}],"typedContracts":[{"name":"VerifyGroundednessCommand","kind":"command","line":7,"fieldCount":3,"evidencePaths":["NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs"]}],"persistenceInteractions":[],"externalInteractions":[{"methodName":"Handle","line":20,"kind":"external-call","detail":"await _knowledgeService.VerifyGroundednessAsync(...)","evidencePaths":["NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"Handle","line":18,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.65,"evidencePaths":["NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs","NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"]},{"kind":"typed-contract","label":"VerifyGroundednessCommand","line":7,"summary":"command with 3 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs"]},{"kind":"external-call","label":"Handle","line":20,"summary":"await _knowledgeService.VerifyGroundednessAsync(...)","confidence":0.8,"evidencePaths":["NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Commands__Library__IngestEbookCommand.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Commands__Library__IngestEbookCommand.cs.json
new file mode 100644
index 0000000..83668c2
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Commands__Library__IngestEbookCommand.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Commands/Library/IngestEbookCommand.cs","purpose":"Defines a CQRS command record used to ingest a new ebook into the library, carrying payload (metadata, content bytes, ownership and tenant info) for application-side handlers.","classification":{"role":"handler","layer":"application","confidence":0.9,"evidence":["Command pattern","Namespace: NexusReader.Application.Commands.Library (line 3)","Declares a record named IngestEbookCommand that implements ICommand<Guid> (lines 15-23)"]},"className":"IngestEbookCommand","methods":[],"types":[{"name":"IngestEbookCommand","kind":"command","line":15,"purpose":"Represents the input payload to ingest a new ebook (title, author, cover bytes, EPUB bytes, description, owner and tenant) for processing by an application command handler.","fields":[{"name":"Title","type":"string","required":true,"line":16,"description":"The title of the ebook."},{"name":"AuthorName","type":"string","required":true,"line":17,"description":"The name of the author."},{"name":"CoverImage","type":"byte[]?","required":false,"line":18,"description":"Optional raw bytes for the cover image."},{"name":"EpubData","type":"byte[]","required":true,"line":19,"description":"Raw bytes of the EPUB file (content to persist/process)."},{"name":"Description","type":"string?","required":false,"line":20,"description":"Optional description or summary of the book."},{"name":"UserId","type":"string","required":true,"line":21,"description":"ID of the user who owns/ingested the book."},{"name":"TenantId","type":"string","required":false,"line":22,"description":"Tenant ID for multi-tenant isolation; defaults to \"global\"."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Abstractions.Messaging"],"patterns":["CQRS Command"],"domainConcepts":["Ebook","Library","Tenant","User/Ownership"],"keyDetails":"Record implements ICommand<Guid> (line 23) so it is intended for a command handler that will return a Guid (likely the created ebook id). TenantId has a default of \"global\" indicating single-tenant default behavior. Contains raw binary payloads (CoverImage, EpubData) which imply handlers will perform persistence or external storage operations.","orchestrationMethods":[],"typedContracts":[{"name":"IngestEbookCommand","kind":"command","line":15,"fieldCount":7,"evidencePaths":["NexusReader.Application/Commands/Library/IngestEbookCommand.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"IngestEbookCommand","line":15,"summary":"command with 7 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Commands/Library/IngestEbookCommand.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Commands__Library__IngestEbookCommandHandler.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Commands__Library__IngestEbookCommandHandler.cs.json
new file mode 100644
index 0000000..a9eceb1
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Commands__Library__IngestEbookCommandHandler.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Commands/Library/IngestEbookCommandHandler.cs","purpose":"Handles ingestion of an EPUB into application storage and persistence: saves files via storage service, ensures/creates author, creates Ebook entity, and persists it returning the new Ebook Id or a failure result.","classification":{"role":"handler","layer":"application","confidence":0.95,"evidence":["Command pattern","Implements MediatR IRequestHandler (line 10)","Namespace NexusReader.Application.Commands.Library (line 8)","Calls repository and storage service abstractions to persist domain entities and files (lines 31, 52, 72)"]},"className":"IngestEbookCommandHandler","methods":[{"name":"IngestEbookCommandHandler","line":15,"endLine":21,"signature":"(ebookRepository: IEbookRepository, storageService: IBookStorageService) -> IngestEbookCommandHandler","purpose":"Constructor that receives and stores repository and storage service dependencies.","calls":[],"actions":[{"id":"assignment_19","kind":"mapping","label":"Assign injected dependencies to fields","line":19,"detail":"_ebookRepository = ebookRepository; 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Commands__Library__IngestEbookRequest.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Commands__Library__IngestEbookRequest.cs.json
new file mode 100644
index 0000000..3675cb7
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Commands__Library__IngestEbookRequest.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Commands/Library/IngestEbookRequest.cs","purpose":"Defines a command/request DTO used to ingest an ebook into the library (carries metadata and base64-encoded payload).","classification":{"role":"handler","layer":"application","confidence":0.9,"evidence":["Command pattern","Namespace: NexusReader.Application.Commands.Library","File path indicates Commands/Library and the type is named IngestEbookRequest","Record shape carries data for an application-level request (ingest)"]},"className":"IngestEbookRequest","methods":[],"types":[{"name":"IngestEbookRequest","kind":"command","line":3,"purpose":"Represents the data required to ingest an ebook: metadata, optional cover image, and the EPUB payload (base64).","fields":[{"name":"Title","type":"string","required":true,"line":4,"description":"Ebook title"},{"name":"AuthorName","type":"string","required":true,"line":5,"description":"Author's name"},{"name":"CoverImageBase64","type":"string?","required":false,"line":6,"description":"Optional cover image encoded as base64"},{"name":"EpubDataBase64","type":"string","required":true,"line":7,"description":"EPUB file content encoded as base64"},{"name":"Description","type":"string?","required":false,"line":8,"description":"Optional description (has default null)"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Command DTO"],"domainConcepts":["Ebook","Library","Author","CoverImage"],"keyDetails":"Simple immutable record used as an application command carrying base64-encoded EPUB payload and optional cover/description; no runtime behavior, methods, or external calls in this file.","orchestrationMethods":[],"typedContracts":[{"name":"IngestEbookRequest","kind":"command","line":3,"fieldCount":5,"evidencePaths":["NexusReader.Application/Commands/Library/IngestEbookRequest.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"IngestEbookRequest","line":3,"summary":"command with 5 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Commands/Library/IngestEbookRequest.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Commands__Quiz__SubmitAnswerCommand.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Commands__Quiz__SubmitAnswerCommand.cs.json
new file mode 100644
index 0000000..8f4fe46
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Commands__Quiz__SubmitAnswerCommand.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs","purpose":"Defines a lightweight CQRS command that carries the user's selected answer index and the correct index for quiz answer submission.","classification":{"role":"handler","layer":"application","confidence":0.9,"evidence":["Command pattern","Namespace: NexusReader.Application.Commands.Quiz","Type implements ICommand from Application.Abstractions.Messaging"]},"className":"SubmitAnswerCommand","methods":[],"types":[{"name":"SubmitAnswerCommand","kind":"command","line":5,"purpose":"Represents a request to submit an answer for a quiz question carrying the selected and correct indices.","fields":[{"name":"SelectedIndex","type":"int","required":true,"line":5,"description":"Index chosen by the user"},{"name":"CorrectIndex","type":"int","required":true,"line":5,"description":"Index considered correct for the question"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Abstractions.Messaging"],"patterns":["CQRS","Command"],"domainConcepts":["Quiz","Answer"],"keyDetails":"Simple immutable record used as a CQRS command (ICommand) carrying two integers; no methods or runtime branching present in this file.","orchestrationMethods":[],"typedContracts":[{"name":"SubmitAnswerCommand","kind":"command","line":5,"fieldCount":2,"evidencePaths":["NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"SubmitAnswerCommand","line":5,"summary":"command with 2 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Commands__Quiz__SubmitAnswerCommandHandler.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Commands__Quiz__SubmitAnswerCommandHandler.cs.json
new file mode 100644
index 0000000..16096fa
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Commands__Quiz__SubmitAnswerCommandHandler.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs","purpose":"Command handler that processes a quiz answer submission: vibrates the device on correct answers and returns success/failure results.","classification":{"role":"handler","layer":"application","confidence":0.9,"evidence":["Command pattern","Class implements ICommandHandler<T> (line 7)","Namespace NexusReader.Application.Commands.Quiz (line 5)"]},"className":"SubmitAnswerCommandHandler","methods":[{"name":"Handle","line":16,"endLine":25,"signature":"(request: SubmitAnswerCommand, cancellationToken: CancellationToken) -> Task<Result>","purpose":"Evaluates the submitted answer, triggers a short vibration if correct, and returns a success or failure Result.","calls":[{"targetFile":"NexusReader.Application.Abstractions.Services","targetMethod":"VibrateAsync","callLine":20,"paramSummary":"durationMs: 50"}],"actions":[{"id":"guard-clause_18","kind":"guard-clause","label":"Check if selected index equals correct index","line":18,"detail":"If true, vibrate and return Result.Ok(); otherwise return Result.Fail(...)","conditionSummary":"request.SelectedIndex == request.CorrectIndex","outcomeLabels":["correct","incorrect"],"visibility":"detail-only","confidence":0.7},{"id":"handle_branch_18_0","kind":"branch","label":"Evaluates branch condition","line":18,"detail":"if (request.SelectedIndex == request.CorrectIndex)","conditionSummary":"request.SelectedIndex == request.CorrectIndex","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"external-call_20","kind":"external-call","label":"Triggers platform vibration for correct answer","line":20,"detail":"await _platformService.VibrateAsync(50)","visibility":"detail-only","confidence":0.7},{"id":"return_21","kind":"return","label":"Return success Result","line":21,"detail":"Result.Ok()","visibility":"detail-only","confidence":0.7},{"id":"handle_return_21_1","kind":"return","label":"Returns result","line":21,"detail":"return Result.Ok();","visibility":"detail-only","confidence":0.7},{"id":"return_24","kind":"return","label":"Return failure Result","line":24,"detail":"Result.Fail(\"Incorrect answer.\")","visibility":"detail-only","confidence":0.7},{"id":"handle_return_24_2","kind":"return","label":"Returns result","line":24,"detail":"return Result.Fail(\"Incorrect answer.\");","visibility":"detail-only","confidence":0.7}]},{"name":"SubmitAnswerCommandHandler","line":11,"endLine":14,"signature":"(platformService: IPlatformService) -> SubmitAnswerCommandHandler","purpose":"Constructor that injects the platform service dependency.","calls":[],"actions":[{"id":"assign_13","kind":"mapping","label":"Assign injected dependency","line":13,"detail":"_platformService = platformService","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Abstractions.Services","NexusReader.Application.Abstractions.Messaging","FluentResults (nuget)"],"patterns":["Command Handler","Dependency Injection"],"domainConcepts":["Quiz","Answer"],"keyDetails":"Runtime behavior centers on a simple branch: correct answer triggers a platform vibration (external call) and returns Result.Ok; incorrect returns Result.Fail. Implements ICommandHandler in the Application layer.","orchestrationMethods":[{"name":"Handle","line":16,"confidence":0.77,"reason":"Contains 2 architectural actions relevant to business execution.","actionKinds":["guard-clause","branch","external-call","return"],"evidencePaths":["NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs","NexusReader.Application.Abstractions.Services"]}],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[{"methodName":"Handle","line":20,"kind":"external-call","detail":"await _platformService.VibrateAsync(50)","evidencePaths":["NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"Handle","line":16,"summary":"Contains 2 architectural actions relevant to business execution.","confidence":0.77,"evidencePaths":["NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs","NexusReader.Application.Abstractions.Services"]},{"kind":"external-call","label":"Handle","line":20,"summary":"await _platformService.VibrateAsync(50)","confidence":0.8,"evidencePaths":["NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Commands__Sync__UpdateReadingProgressCommand.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Commands__Sync__UpdateReadingProgressCommand.cs.json
new file mode 100644
index 0000000..6052320
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Commands__Sync__UpdateReadingProgressCommand.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs","purpose":"Defines a MediatR command DTO used to update/sync a user's reading progress for an ebook across the application.","classification":{"role":"handler","layer":"application","confidence":0.9,"evidence":["Command pattern","namespace NexusReader.Application.Commands.Sync","type implements IRequest<Result> (MediatR) — used as an application-level command/DTO"]},"className":"UpdateReadingProgressCommand","methods":[],"types":[{"name":"UpdateReadingProgressCommand","kind":"command","line":6,"purpose":"Represents the data required to update/synchronize reading progress for a user's ebook.","fields":[{"name":"PageId","type":"string","required":true,"line":7,"description":"Identifier of the current page"},{"name":"UserId","type":"string","required":true,"line":8,"description":"Identifier of the user whose progress is being updated"},{"name":"EbookId","type":"Guid","required":true,"line":9,"description":"Ebook identifier"},{"name":"Progress","type":"double","required":true,"line":10,"description":"Progress value (e.g., percentage or fraction) representing reading position"},{"name":"ChapterTitle","type":"string?","required":false,"line":11,"description":"Optional current chapter title"},{"name":"ChapterIndex","type":"int","required":true,"line":12,"description":"Index of the current chapter"},{"name":"ExcludedConnectionId","type":"string?","required":false,"line":13,"description":"Optional connection id to exclude from notifications (default null)"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["FluentResults (external package)","MediatR (external package)"],"patterns":["CQRS Command","MediatR IRequest<Result>"],"domainConcepts":["ReadingProgress","Ebook","User","Sync"],"keyDetails":"A simple record-level command DTO (lines 6–13). Implements IRequest<Result> for MediatR dispatch; includes an optional ExcludedConnectionId likely used to suppress notifying the originator when broadcasting updates.","orchestrationMethods":[],"typedContracts":[{"name":"UpdateReadingProgressCommand","kind":"command","line":6,"fieldCount":7,"evidencePaths":["NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"UpdateReadingProgressCommand","line":6,"summary":"command with 7 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Commands__Sync__UpdateReadingProgressCommandHandler.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Commands__Sync__UpdateReadingProgressCommandHandler.cs.json
new file mode 100644
index 0000000..63f9b57
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Commands__Sync__UpdateReadingProgressCommandHandler.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs","purpose":"Handles UpdateReadingProgressCommand: persists a user's reading position to the database and broadcasts the update to other connected devices.","classification":{"role":"handler","layer":"application","confidence":0.9,"evidence":["Command pattern","Implements MediatR IRequestHandler<UpdateReadingProgressCommand, Result> (line 13)","Creates/uses AppDbContext (NexusReader.Data.Persistence) to update User and Ebook (lines 28-49)","Uses ISyncBroadcaster to BroadcastProgressAsync after persistence (lines 51-57)"]},"className":"UpdateReadingProgressCommandHandler","methods":[{"name":"Handle","line":26,"endLine":60,"signature":"(request: UpdateReadingProgressCommand, cancellationToken: CancellationToken) -> Task<Result>","purpose":"Orchestrates updating a user's last-read position and ebook progress in the DB, then broadcasts the progress to other 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Result.Ok()","visibility":"detail-only","confidence":0.7},{"id":"handle_return_59_6","kind":"return","label":"Returns result","line":59,"detail":"return Result.Ok();","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"UpdateReadingProgressCommandHandler","kind":"model","line":13,"purpose":"MediatR handler that updates reading progress and triggers sync broadcasts.","fields":[{"name":"_dbContextFactory","type":"IDbContextFactory<AppDbContext>","required":true,"line":15,"description":"Factory used to create AppDbContext instances for persistence operations."},{"name":"_broadcaster","type":"ISyncBroadcaster","required":true,"line":16,"description":"Abstraction responsible for broadcasting progress updates to other devices/connections."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Data.Persistence (AppDbContext)","NexusReader.Application.Abstractions.Messaging (ISyncBroadcaster)"],"patterns":["Mediator (MediatR)","Repository/EF DbContext 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cancellationToken);","evidencePaths":["NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"]},{"methodName":"Handle","line":49,"kind":"persistence-read","detail":"await context.SaveChangesAsync(cancellationToken);","evidencePaths":["NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"]}],"externalInteractions":[{"methodName":"Handle","line":52,"kind":"external-call","detail":"await _broadcaster.BroadcastProgressAsync(request.UserId, request.PageId, now, request.ExcludedConnectionId, cancellationToken)","evidencePaths":["NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"Handle","line":26,"summary":"Contains 7 architectural actions relevant to business 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cancellationToken);","confidence":0.82,"evidencePaths":["NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"]},{"kind":"persistence","label":"Handle","line":49,"summary":"await context.SaveChangesAsync(cancellationToken);","confidence":0.82,"evidencePaths":["NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"]},{"kind":"external-call","label":"Handle","line":52,"summary":"await _broadcaster.BroadcastProgressAsync(request.UserId, request.PageId, now, request.ExcludedConnectionId, cancellationToken)","confidence":0.8,"evidencePaths":["NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Common__AppJsonContext.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Common__AppJsonContext.cs.json
new file mode 100644
index 0000000..b26986e
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Common__AppJsonContext.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Common/AppJsonContext.cs","purpose":"Defines a System.Text.Json source-generation context that registers graph-related DTO types for ahead-of-time JSON (de)serialization with indented output.","classification":{"role":"config","layer":"application","confidence":0.9,"evidence":["Namespace NexusReader.Application.Common (application layer)","Uses JsonSourceGenerationOptions and multiple JsonSerializable attributes (lines 6-11)"]},"className":"AppJsonContext","methods":[],"types":[{"name":"AppJsonContext","kind":"model","line":12,"purpose":"Partial JsonSerializerContext type that drives System.Text.Json source generation for specified DTO types.","fields":[]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["System.Text.Json.Serialization (framework)","NexusReader.Application.Queries.Graph (referenced DTOs GraphNodeDto, GraphLinkDto, GraphDataDto)"],"patterns":["Source Generator","Json Source Generation"],"domainConcepts":["GraphNode","GraphLink","GraphData"],"keyDetails":"Lines 6-11 apply JsonSourceGenerationOptions(WriteIndented=true) and register JsonSerializable for GraphNodeDto, GraphLinkDto, GraphDataDto and List<T> variants. The class (line 12) is an empty partial inheriting JsonSerializerContext used at compile-time to generate optimized JSON serializers.","orchestrationMethods":[],"typedContracts":[{"name":"AppJsonContext","kind":"model","line":12,"fieldCount":0,"evidencePaths":["NexusReader.Application/Common/AppJsonContext.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"AppJsonContext","line":12,"summary":"model with 0 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Common/AppJsonContext.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Constants__PlanConstants.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Constants__PlanConstants.cs.json
new file mode 100644
index 0000000..4a822d1
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Constants__PlanConstants.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Constants/PlanConstants.cs","purpose":"Defines application-wide default constants for Plan-related settings (name, token limit, activity label).","classification":{"role":"config","layer":"application","confidence":0.85,"evidence":["namespace NexusReader.Application.Constants","static class with public constant values for Plan defaults"]},"className":"PlanConstants","methods":[],"types":[{"name":"PlanConstants","kind":"model","line":3,"purpose":"Holds compile-time constant defaults for plan configuration used across the application.","fields":[{"name":"DefaultPlanName","type":"string","required":true,"line":5,"description":"Default plan name (e.g., 'Free')."},{"name":"DefaultTokenLimit","type":"int","required":true,"line":6,"description":"Default numeric token limit for the plan."},{"name":"DefaultActivityLabel","type":"string","required":true,"line":7,"description":"Default label shown when there's no activity."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Constants holder"],"domainConcepts":["Plan"],"keyDetails":"Simple static container of compile-time constants; no runtime behavior, no external calls, and safe for inlining/compile-time use.","orchestrationMethods":[],"typedContracts":[{"name":"PlanConstants","kind":"model","line":3,"fieldCount":3,"evidencePaths":["NexusReader.Application/Constants/PlanConstants.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"PlanConstants","line":3,"summary":"model with 3 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Constants/PlanConstants.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Constants__StorageKeys.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Constants__StorageKeys.cs.json
new file mode 100644
index 0000000..529f931
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Constants__StorageKeys.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Constants/StorageKeys.cs","purpose":"Defines application-wide string keys used for client/local storage (auth tokens and user metadata).","classification":{"role":"config","layer":"application","confidence":0.9,"evidence":["Namespace NexusReader.Application.Constants indicates application-level constants","Public static class with const string fields used as storage keys"]},"className":"StorageKeys","methods":[],"types":[{"name":"StorageKeys","kind":"model","line":3,"purpose":"Holds constant keys for storing authentication and user metadata in client/local storage.","fields":[{"name":"AuthToken","type":"string","required":true,"line":5,"description":"Key for the auth token (\"nexus_auth_token\")."},{"name":"RefreshToken","type":"string","required":true,"line":6,"description":"Key for the refresh token (\"nexus_refresh_token\")."},{"name":"UserEmail","type":"string","required":true,"line":7,"description":"Key for the user's email (\"nexus_user_email\")."},{"name":"UserTenant","type":"string","required":true,"line":8,"description":"Key for the user's tenant identifier (\"nexus_user_tenant\")."},{"name":"UserRoles","type":"string","required":true,"line":9,"description":"Key for the user's roles (\"nexus_user_roles\")."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Constants"],"domainConcepts":["Auth","User","Tenant","Roles","Token storage"],"keyDetails":"Simple static constant holder used across client and application code to standardize local storage keys for authentication and user metadata.","orchestrationMethods":[],"typedContracts":[{"name":"StorageKeys","kind":"model","line":3,"fieldCount":5,"evidencePaths":["NexusReader.Application/Constants/StorageKeys.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"StorageKeys","line":3,"summary":"model with 5 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Constants/StorageKeys.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__DTOs__AI__GroundedResponseDto.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__DTOs__AI__GroundedResponseDto.cs.json
new file mode 100644
index 0000000..6552516
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__DTOs__AI__GroundedResponseDto.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/DTOs/AI/GroundedResponseDto.cs","purpose":"Defines simple DTOs used to return a grounded AI response (answer plus provenance/citations) from application services.","classification":{"role":"dto","layer":"application","confidence":0.9,"evidence":["DTO/view-model naming pattern","Namespace NexusReader.Application.DTOs.AI","File only contains plain data-holder classes (GroundedResponseDto, CitationDto) with auto-properties"]},"className":"GroundedResponseDto","methods":[],"types":[{"name":"GroundedResponseDto","kind":"dto","line":5,"purpose":"Carries an AI-generated answer and a list of provenance citations back to callers.","fields":[{"name":"Answer","type":"string","required":true,"line":7,"description":"The generated answer text"},{"name":"Citations","type":"List<CitationDto>","required":true,"line":8,"description":"List of contextual citations supporting the answer"}]},{"name":"CitationDto","kind":"dto","line":11,"purpose":"Represents a single provenance item (chunk id, snippet, and source) used to justify the answer.","fields":[{"name":"CitationId","type":"string","required":true,"line":13,"description":"Identifier for the cited chunk (e.g., chunk hash/ID)"},{"name":"Snippet","type":"string","required":true,"line":14,"description":"Verified text snippet extracted from context"},{"name":"SourceBook","type":"string","required":true,"line":15,"description":"Book title or human-readable source description"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["DTO"],"domainConcepts":["GroundedResponse","Citation","AI/Knowledge","Answering","Provenance"],"keyDetails":"Small, self-contained DTOs with default non-null initializers (string.Empty, new List) intended for safe transport over app/service boundaries.","orchestrationMethods":[],"typedContracts":[{"name":"GroundedResponseDto","kind":"dto","line":5,"fieldCount":2,"evidencePaths":["NexusReader.Application/DTOs/AI/GroundedResponseDto.cs"]},{"name":"CitationDto","kind":"dto","line":11,"fieldCount":3,"evidencePaths":["NexusReader.Application/DTOs/AI/GroundedResponseDto.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"GroundedResponseDto","line":5,"summary":"dto with 2 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/DTOs/AI/GroundedResponseDto.cs"]},{"kind":"typed-contract","label":"CitationDto","line":11,"summary":"dto with 3 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/DTOs/AI/GroundedResponseDto.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__DTOs__AI__KnowledgePacket.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__DTOs__AI__KnowledgePacket.cs.json
new file mode 100644
index 0000000..99fddd8
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__DTOs__AI__KnowledgePacket.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/DTOs/AI/KnowledgePacket.cs","purpose":"Defines DTO record types used to represent AI/knowledge extraction payloads (concepts, quizzes, knowledge units/links, and an optional graph/summary) for application-level serialization and transport.","classification":{"role":"dto","layer":"application","confidence":0.9,"evidence":["DTO/view-model naming pattern","File namespace NexusReader.Application.DTOs.AI (line 3) indicates DTOs in Application layer","All types are C# record types with JsonPropertyName attributes (lines 5-26) — serialization-focused"]},"className":"KnowledgePacket","methods":[],"types":[{"name":"KeyConcept","kind":"dto","line":5,"purpose":"Represents a key concept with a title and description for knowledge payloads.","fields":[{"name":"Title","type":"string","required":true,"line":6,"description":"Concept title (serialized as 'title')"},{"name":"Description","type":"string","required":true,"line":7,"description":"Concept description (serialized as 'description')"}]},{"name":"QuizQuestion","kind":"dto","line":10,"purpose":"Represents a single quiz question with options and the index of the correct answer.","fields":[{"name":"Question","type":"string","required":true,"line":11,"description":"Question text (serialized as 'question')"},{"name":"Options","type":"List<string>","required":true,"line":12,"description":"Answer choices (serialized as 'options')"},{"name":"CorrectIndex","type":"int","required":true,"line":13,"description":"Index of correct option (serialized as 'correct_index')"}]},{"name":"KnowledgeUnitDto","kind":"dto","line":16,"purpose":"Represents an individual knowledge unit (atomic piece of content) with optional metadata.","fields":[{"name":"Id","type":"string","required":true,"line":16,"description":"Unit identifier"},{"name":"Type","type":"string","required":true,"line":16,"description":"Unit type/category"},{"name":"Content","type":"string","required":true,"line":16,"description":"Unit content payload"},{"name":"Metadata","type":"Dictionary<string, object>?","required":false,"line":16,"description":"Optional arbitrary metadata map"}]},{"name":"KnowledgeLinkDto","kind":"dto","line":17,"purpose":"Represents a directed relation/link between two knowledge units.","fields":[{"name":"Source","type":"string","required":true,"line":17,"description":"Source unit id"},{"name":"Target","type":"string","required":true,"line":17,"description":"Target unit id"},{"name":"Relation","type":"string","required":true,"line":17,"description":"Nature of the relation"}]},{"name":"KnowledgePacket","kind":"dto","line":19,"purpose":"Aggregates concepts, quizzes, units, links, optional graph data, and an optional summary into a single serializable payload.","fields":[{"name":"Concepts","type":"List<KeyConcept>","required":true,"line":21,"description":"List of key concepts (serialized as 'concepts'), default initialized empty"},{"name":"Quizzes","type":"List<QuizQuestion>","required":true,"line":22,"description":"List of quiz questions (serialized as 'quizzes'), default initialized empty"},{"name":"Units","type":"List<KnowledgeUnitDto>","required":true,"line":23,"description":"Knowledge units included in the packet (serialized as 'units'), default initialized empty"},{"name":"Links","type":"List<KnowledgeLinkDto>","required":true,"line":24,"description":"Links between units (serialized as 'links'), default initialized empty"},{"name":"Graph","type":"NexusReader.Application.Queries.Graph.GraphDataDto?","required":false,"line":25,"description":"Optional graph structure (serialized as 'graph'), references GraphDataDto in Queries.Graph namespace"},{"name":"Summary","type":"string?","required":false,"line":26,"description":"Optional textual summary of the packet (serialized as 'summary')"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application/Queries/Graph/GraphDataDto.cs"],"patterns":["DTO","Record","Serialization (System.Text.Json)"],"domainConcepts":["Knowledge","KeyConcept","QuizQuestion","KnowledgeUnit","KnowledgeLink","Graph"],"keyDetails":"All types are immutable C# records with System.Text.Json property mappings; KnowledgePacket aggregates multiple collections initialized to empty lists and optionally includes a GraphDataDto and Summary.","orchestrationMethods":[],"typedContracts":[{"name":"KeyConcept","kind":"dto","line":5,"fieldCount":2,"evidencePaths":["NexusReader.Application/DTOs/AI/KnowledgePacket.cs"]},{"name":"QuizQuestion","kind":"dto","line":10,"fieldCount":3,"evidencePaths":["NexusReader.Application/DTOs/AI/KnowledgePacket.cs"]},{"name":"KnowledgeUnitDto","kind":"dto","line":16,"fieldCount":4,"evidencePaths":["NexusReader.Application/DTOs/AI/KnowledgePacket.cs"]},{"name":"KnowledgeLinkDto","kind":"dto","line":17,"fieldCount":3,"evidencePaths":["NexusReader.Application/DTOs/AI/KnowledgePacket.cs"]},{"name":"KnowledgePacket","kind":"dto","line":19,"fieldCount":6,"evidencePaths":["NexusReader.Application/DTOs/AI/KnowledgePacket.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"KeyConcept","line":5,"summary":"dto with 2 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/DTOs/AI/KnowledgePacket.cs"]},{"kind":"typed-contract","label":"QuizQuestion","line":10,"summary":"dto with 3 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/DTOs/AI/KnowledgePacket.cs"]},{"kind":"typed-contract","label":"KnowledgeUnitDto","line":16,"summary":"dto with 4 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/DTOs/AI/KnowledgePacket.cs"]},{"kind":"typed-contract","label":"KnowledgeLinkDto","line":17,"summary":"dto with 3 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/DTOs/AI/KnowledgePacket.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__DTOs__AI__RelevantContext.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__DTOs__AI__RelevantContext.cs.json
new file mode 100644
index 0000000..2c4eaf0
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__DTOs__AI__RelevantContext.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/DTOs/AI/RelevantContext.cs","purpose":"Defines a small DTO that carries a piece of retrieved context (text, source id and confidence) used by AI/knowledge features.","classification":{"role":"dto","layer":"application","confidence":0.9,"evidence":["DTO/view-model naming pattern","Namespace NexusReader.Application.DTOs.AI","File path implies DTOs for AI features and contains only plain properties"]},"className":"RelevantContext","methods":[],"types":[{"name":"RelevantContext","kind":"dto","line":3,"purpose":"Represents a single relevant context item (text snippet) returned or passed to AI/knowledge components, including its source and confidence score.","fields":[{"name":"Text","type":"string","required":true,"line":5,"description":"The context text snippet; initialized to empty string by default."},{"name":"SourceId","type":"string","required":true,"line":6,"description":"Identifier of the source (e.g., ContentHash or EbookTitle); initialized to empty string."},{"name":"Confidence","type":"double","required":false,"line":7,"description":"Confidence score for how relevant the snippet is."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["DTO"],"domainConcepts":["AI","Knowledge Retrieval","Context Snippet"],"keyDetails":"Tiny immutable-appearing DTO (auto-properties with defaults) used to transport relevant context text, its source id, and a numeric confidence between layers or AI components.","orchestrationMethods":[],"typedContracts":[{"name":"RelevantContext","kind":"dto","line":3,"fieldCount":3,"evidencePaths":["NexusReader.Application/DTOs/AI/RelevantContext.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"RelevantContext","line":3,"summary":"dto with 3 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/DTOs/AI/RelevantContext.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__DTOs__AI__SemanticSearchResultDto.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__DTOs__AI__SemanticSearchResultDto.cs.json
new file mode 100644
index 0000000..9759636
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__DTOs__AI__SemanticSearchResultDto.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs","purpose":"Defines a data transfer object representing a semantic search hit returned by AI/semantic search operations, carrying content identifiers, a snippet, relevance score and optional metadata.","classification":{"role":"dto","layer":"application","confidence":0.9,"evidence":["DTO/view-model naming pattern","Namespace NexusReader.Application.DTOs.AI indicates an Application-layer DTO","File declares a single plain data class SemanticSearchResultDto with no methods"]},"className":"SemanticSearchResultDto","methods":[],"types":[{"name":"SemanticSearchResultDto","kind":"dto","line":3,"purpose":"Carries the result of a semantic search (content identifier, snippet, unit type, relevance and optional source/metadata) across application boundaries.","fields":[{"name":"ContentHash","type":"string","required":true,"line":5,"description":"Identifier/hash for the matched content (non-null, initialized to empty string)."},{"name":"Snippet","type":"string","required":true,"line":6,"description":"Text snippet or excerpt used to show the match (non-null, initialized to empty string)."},{"name":"UnitType","type":"string?","required":false,"line":7,"description":"Optional unit/type of the content (nullable)."},{"name":"RelevanceScore","type":"float","required":true,"line":8,"description":"Numeric relevance score from the semantic search."},{"name":"SourceBookTitle","type":"string?","required":false,"line":9,"description":"Optional title of the source book where the content originated (nullable)."},{"name":"Metadata","type":"Dictionary<string, object>?","required":false,"line":10,"description":"Optional arbitrary metadata / bonus context attached to the result (nullable)."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["DTO"],"domainConcepts":["Semantic Search","Search Result","Knowledge Retrieval"],"keyDetails":"Plain DTO used to transport semantic search hits; contains nullable metadata for extensibility and initialized non-null strings for ContentHash and Snippet.","orchestrationMethods":[],"typedContracts":[{"name":"SemanticSearchResultDto","kind":"dto","line":3,"fieldCount":6,"evidencePaths":["NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"SemanticSearchResultDto","line":3,"summary":"dto with 6 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__DTOs__User__AuthorDto.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__DTOs__User__AuthorDto.cs.json
new file mode 100644
index 0000000..c432369
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__DTOs__User__AuthorDto.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/DTOs/User/AuthorDto.cs","purpose":"Defines a simple data transfer object representing an author (Id and Name) used by the Application layer to pass user/author data between boundaries.","classification":{"role":"dto","layer":"application","confidence":0.9,"evidence":["DTO/view-model naming pattern","Namespace: NexusReader.Application.DTOs.User","File path and name: Application/DTOs/User/AuthorDto.cs","Declares a record named AuthorDto with simple properties"]},"className":"AuthorDto","methods":[],"types":[{"name":"AuthorDto","kind":"dto","line":3,"purpose":"Immutable DTO carrying basic author identity data across application boundaries.","fields":[{"name":"Id","type":"int","required":true,"line":5,"description":"Numeric author identifier"},{"name":"Name","type":"string","required":true,"line":6,"description":"Author display name (defaults to empty string)"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["DTO","record"],"domainConcepts":["Author","User"],"keyDetails":"Small immutable record DTO in the Application layer representing author/user identity (Id and Name).","orchestrationMethods":[],"typedContracts":[{"name":"AuthorDto","kind":"dto","line":3,"fieldCount":2,"evidencePaths":["NexusReader.Application/DTOs/User/AuthorDto.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"AuthorDto","line":3,"summary":"dto with 2 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/DTOs/User/AuthorDto.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__DTOs__User__SubscriptionPlanDto.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__DTOs__User__SubscriptionPlanDto.cs.json
new file mode 100644
index 0000000..9d9366b
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__DTOs__User__SubscriptionPlanDto.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/DTOs/User/SubscriptionPlanDto.cs","purpose":"Defines a simple immutable DTO representing a subscription plan used across the application layer (billing/AI quota).","classification":{"role":"dto","layer":"application","confidence":0.9,"evidence":["DTO/view-model naming pattern","Namespace: NexusReader.Application.DTOs.User","File name and shape: SubscriptionPlanDto record with init-only properties"]},"className":"SubscriptionPlanDto","methods":[],"types":[{"name":"SubscriptionPlanDto","kind":"dto","line":3,"purpose":"Carries subscription plan data (id, name, AI token limits, price) across application boundaries.","fields":[{"name":"Id","type":"int","required":true,"line":5,"description":"Numeric identifier of the subscription plan"},{"name":"Name","type":"string","required":true,"line":6,"description":"Human-readable plan name"},{"name":"AITokenLimit","type":"int","required":true,"line":7,"description":"Token allowance for AI usage on the plan"},{"name":"IsUnlimitedTokens","type":"bool","required":true,"line":8,"description":"Flag indicating whether token limits are disabled"},{"name":"MonthlyPrice","type":"decimal","required":true,"line":9,"description":"Monthly price for the subscription plan"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["DTO","Immutable Record"],"domainConcepts":["SubscriptionPlan","Billing","AI Tokens"],"keyDetails":"A minimal, immutable data-transfer record used to move subscription plan data; no methods, behavior, or external calls in this file.","orchestrationMethods":[],"typedContracts":[{"name":"SubscriptionPlanDto","kind":"dto","line":3,"fieldCount":5,"evidencePaths":["NexusReader.Application/DTOs/User/SubscriptionPlanDto.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"SubscriptionPlanDto","line":3,"summary":"dto with 5 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/DTOs/User/SubscriptionPlanDto.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__DTOs__User__UserProfileDto.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__DTOs__User__UserProfileDto.cs.json
new file mode 100644
index 0000000..a010893
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__DTOs__User__UserProfileDto.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/DTOs/User/UserProfileDto.cs","purpose":"Defines application-level DTOs representing a user's profile and their last-read book, including UI helper properties that project domain values and defaults for client consumption.","classification":{"role":"dto","layer":"application","confidence":0.9,"evidence":["DTO/view-model naming pattern","File path: NexusReader.Application/DTOs/User","Types are declared as record DTOs (UserProfileDto, LastReadBookDto)","Uses PlanConstants and other DTO types (typical application DTO composition)"]},"className":"UserProfileDto","methods":[{"name":"CurrentPlan","line":26,"endLine":26,"signature":"() -> string","purpose":"Returns the current plan name from Plan or a default plan name when Plan is null or its Name is null.","calls":[{"targetFile":"NexusReader.Application/Constants/PlanConstants.cs","targetMethod":"DefaultPlanName (field)","callLine":26,"paramSummary":"none"}],"actions":[{"id":"null-coalesce_26","kind":"mapping","label":"Fallback to default plan name","line":26,"detail":"returns Plan?.Name ?? PlanConstants.DefaultPlanName","visibility":"detail-only","confidence":0.7}]},{"name":"AITokenLimit","line":27,"endLine":27,"signature":"() -> int","purpose":"Exposes the AI token limit from the Plan or returns a default token limit when Plan is null.","calls":[{"targetFile":"NexusReader.Application/Constants/PlanConstants.cs","targetMethod":"DefaultTokenLimit (field)","callLine":27,"paramSummary":"none"}],"actions":[{"id":"null-coalesce_27","kind":"mapping","label":"Fallback to default token limit","line":27,"detail":"returns Plan?.AITokenLimit ?? PlanConstants.DefaultTokenLimit","visibility":"detail-only","confidence":0.7}]},{"name":"LastReadBookTitle","line":28,"endLine":28,"signature":"() -> string","purpose":"Returns the title of the last read book or a default activity label when LastReadBook is null.","calls":[{"targetFile":"NexusReader.Application/Constants/PlanConstants.cs","targetMethod":"DefaultActivityLabel (field)","callLine":28,"paramSummary":"none"}],"actions":[{"id":"null-coalesce_28","kind":"mapping","label":"Fallback to default activity label","line":28,"detail":"returns LastReadBook?.Title ?? PlanConstants.DefaultActivityLabel","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"UserProfileDto","kind":"dto","line":5,"purpose":"Represents a user's profile data returned by application services, including plan, usage, roles and a brief last-read-book summary.","fields":[{"name":"Email","type":"string","required":true,"line":7,"description":"User email address"},{"name":"AITokensUsed","type":"int","required":true,"line":8,"description":"Number of AI tokens the user has consumed"},{"name":"TenantId","type":"Guid","required":true,"line":9,"description":"Tenant identifier for multi-tenant scoping"},{"name":"Plan","type":"SubscriptionPlanDto","required":true,"line":14,"description":"Relational DTO representing the user's subscription plan (initialized to new())"},{"name":"AverageQuizScore","type":"int","required":true,"line":16,"description":"Average score across quizzes"},{"name":"LastReadBook","type":"LastReadBookDto?","required":false,"line":21,"description":"Optional summary DTO for the last read book"},{"name":"Roles","type":"string[]","required":true,"line":23,"description":"Array of role names assigned to the user"}]},{"name":"LastReadBookDto","kind":"dto","line":31,"purpose":"Represents a lightweight summary of the last-read book for display in UI.","fields":[{"name":"Id","type":"Guid","required":true,"line":33,"description":"Book identifier"},{"name":"Title","type":"string","required":true,"line":34,"description":"Book title"},{"name":"Author","type":"AuthorDto","required":true,"line":35,"description":"Author DTO"},{"name":"CoverUrl","type":"string?","required":false,"line":36,"description":"Optional cover image URL"},{"name":"Progress","type":"double","required":true,"line":37,"description":"Reading progress percentage"},{"name":"LastChapter","type":"string?","required":false,"line":38,"description":"Title of the last chapter read"},{"name":"LastChapterIndex","type":"int","required":true,"line":39,"description":"Index of the last chapter read"},{"name":"Description","type":"string?","required":false,"line":40,"description":"Optional short description of the book"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application/Constants/PlanConstants.cs","NexusReader.Application/DTOs/Subscription/SubscriptionPlanDto.cs","NexusReader.Application/DTOs/AuthorDto.cs"],"patterns":["DTO"],"domainConcepts":["User","SubscriptionPlan","Book","Author","Tenant","Roles"],"keyDetails":"Contains UI-friendly helper properties that null-coalesce domain values to application-level defaults (via PlanConstants) and composes other DTOs (SubscriptionPlanDto, AuthorDto). 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__DependencyInjection.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__DependencyInjection.cs.json
new file mode 100644
index 0000000..cc15f62
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__DependencyInjection.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/DependencyInjection.cs","purpose":"Provides application-level DI registrations (Mapster mapping config and MediatR handler registration) and exposes the application assembly for composition/root usage.","classification":{"role":"service-registration","layer":"application","confidence":0.9,"evidence":["Contains an AddApplication(IServiceCollection) extension that registers services","Exposes Assembly property for registering handlers from this assembly"]},"className":"DependencyInjection","methods":[{"name":"AddApplication","line":8,"endLine":14,"signature":"(services: IServiceCollection) -> IServiceCollection","purpose":"Extension method that registers application mapping configuration and MediatR handlers, returning the IServiceCollection for chaining.","calls":[{"targetFile":"NexusReader.Application/Mappings.cs","targetMethod":"AddMapsterConfiguration","callLine":10,"paramSummary":"this IServiceCollection (extension call to register Mapster mappings)"}],"actions":[{"id":"service-registration_10","kind":"mapping","label":"Register mapping configuration","line":10,"detail":"Calls AddMapsterConfiguration() to add Mapster mapping setup","visibility":"detail-only","confidence":0.7},{"id":"service-registration_11","kind":"mapping","label":"Register MediatR handlers","line":11,"detail":"Calls AddMediatR(...) to register MediatR handlers from this assembly (external library call)","visibility":"detail-only","confidence":0.7},{"id":"return_13","kind":"return","label":"Return IServiceCollection","line":13,"detail":"Returns the same IServiceCollection for fluent chaining","visibility":"detail-only","confidence":0.7},{"id":"addapplication_return_13_0","kind":"return","label":"Returns result","line":13,"detail":"return services;","visibility":"detail-only","confidence":0.7}]},{"name":"Assembly","line":16,"endLine":16,"signature":"-> System.Reflection.Assembly","purpose":"Exposes the current assembly (NexusReader.Application) for use when registering handlers or scanning types.","calls":[],"actions":[{"id":"expose-value_16","kind":"mapping","label":"Provide assembly reference","line":16,"detail":"Getter returns typeof(DependencyInjection).Assembly","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[{"line":10,"serviceType":"Mapster configuration / mapping profiles","implementationType":"configured via AddMapsterConfiguration extension","lifetime":"unknown","factorySummary":"Calls AddMapsterConfiguration to register Mapster mapping setup for the Application project"},{"line":11,"serviceType":"MediatR handlers (from this assembly)","implementationType":"handlers discovered in this assembly","lifetime":"unknown","factorySummary":"Calls AddMediatR(cfg => cfg.RegisterServicesFromAssembly(Assembly)) to register MediatR handlers"}],"startupActions":[],"dependencies":["NexusReader.Application/Mappings.cs","MediatR (external package)"],"patterns":["Dependency Injection extension","Service registration"],"domainConcepts":[],"keyDetails":"Intended to be called from the composition root (e.g., Web project startup) to wire up application mapping and MediatR handler discovery; exposes Assembly for scanning.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Mappings__MappingConfig.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Mappings__MappingConfig.cs.json
new file mode 100644
index 0000000..fec8b34
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Mappings__MappingConfig.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Mappings/MappingConfig.cs","purpose":"Defines and registers Mapster mapping configuration and the Mapster IMapper into the application's DI container.","classification":{"role":"service-registration","layer":"application","confidence":0.9,"evidence":["Service registration API usage","Provides an IServiceCollection extension method AddMapsterConfiguration that registers mapping services","Calls AddSingleton and AddScoped to register TypeAdapterConfig and IMapper"]},"className":"MappingConfig","methods":[{"name":"AddMapsterConfiguration","line":11,"endLine":23,"signature":"(this IServiceCollection services) -> IServiceCollection","purpose":"Configures Mapster type mappings and registers the mapping configuration and IMapper implementation into DI, then returns the IServiceCollection.","calls":[{"targetFile":"unknown","targetMethod":"TypeAdapterConfig.GlobalSettings","callLine":13,"paramSummary":"access global Mapster configuration 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mapping","line":15,"detail":"config.NewConfig<NexusUser, UserProfileDto>()","visibility":"detail-only","confidence":0.7},{"id":"map-config_16","kind":"mapping","label":"Register Ebook -> LastReadBookDto mapping","line":16,"detail":"config.NewConfig<Ebook, LastReadBookDto>()","visibility":"detail-only","confidence":0.7},{"id":"map-config_17","kind":"mapping","label":"Explicitly map Description property","line":17,"detail":".Map(dest => dest.Description, src => src.Description)","visibility":"detail-only","confidence":0.7},{"id":"addmapsterconfiguration_mapping_17_0","kind":"mapping","label":"Maps data or transforms shape","line":17,"detail":".Map(dest => dest.Description, src => src.Description);","visibility":"detail-only","confidence":0.74},{"id":"service-registration_19","kind":"mapping","label":"Register TypeAdapterConfig as singleton","line":19,"detail":"services.AddSingleton(config)","visibility":"detail-only","confidence":0.7},{"id":"service-registration_20","kind":"mapping","label":"Register IMapper implementation as scoped","line":20,"detail":"services.AddScoped<IMapper, ServiceMapper>()","visibility":"detail-only","confidence":0.7},{"id":"return_22","kind":"return","label":"Return service collection","line":22,"detail":"return services;","visibility":"detail-only","confidence":0.7},{"id":"addmapsterconfiguration_return_22_1","kind":"return","label":"Returns result","line":22,"detail":"return services;","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[{"line":19,"serviceType":"TypeAdapterConfig","implementationType":"TypeAdapterConfig (instance)","lifetime":"singleton","factorySummary":"Registers the global Mapster TypeAdapterConfig instance as a singleton"},{"line":20,"serviceType":"IMapper","implementationType":"ServiceMapper","lifetime":"scoped","factorySummary":"Registers Mapster ServiceMapper as the application's IMapper implementation"}],"startupActions":[],"dependencies":["NexusReader.Domain.Entities","NexusReader.Application.DTOs.User","Mapster","MapsterMapper","Microsoft.Extensions.DependencyInjection"],"patterns":["Mapping/Adapter","DI service registration","Extension method for IServiceCollection"],"domainConcepts":["NexusUser","UserProfileDto","Ebook","LastReadBookDto"],"keyDetails":"Single extension method that centralizes Mapster mapping registrations (including an explicit mapping for Description) and registers the Mapster config and IMapper in DI for application-wide usage.","orchestrationMethods":[{"name":"AddMapsterConfiguration","line":11,"confidence":0.93,"reason":"Coordinates 6 downstream calls with 0 architectural actions.","actionKinds":["mapping","return"],"evidencePaths":["NexusReader.Application/Mappings/MappingConfig.cs","unknown","unknown","unknown","unknown","unknown"]}],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"orchestration-method","label":"AddMapsterConfiguration","line":11,"summary":"Coordinates 6 downstream calls with 0 architectural actions.","confidence":0.93,"evidencePaths":["NexusReader.Application/Mappings/MappingConfig.cs","unknown","unknown","unknown","unknown","unknown"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__NexusReader.Application.csproj.json b/src/.documentation/cache/summaries/NexusReader.Application__NexusReader.Application.csproj.json
new file mode 100644
index 0000000..271bbfa
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__NexusReader.Application.csproj.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/NexusReader.Application.csproj","purpose":"Project file for the NexusReader.Application .NET project: declares project-to-project references, NuGet package dependencies, and build properties (target framework, nullable, implicit usings, runtime config generation).","classification":{"role":"config","layer":"application","confidence":0.9,"evidence":["Project references to NexusReader.Domain and NexusReader.Data (lines 4-6)","Multiple PackageReference entries including MediatR, EF Core, AI, Identity, resilience libraries (lines 9-18)","TargetFramework, Nullable, ImplicitUsings defined (lines 21-26)"]},"className":"","methods":[],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["..\\NexusReader.Domain\\NexusReader.Domain.csproj","..\\NexusReader.Data\\NexusReader.Data.csproj"],"patterns":["MediatR (Mediator/CQRS)","Mapster (mapping)","EF Core repository/persistence","Resilience patterns (Microsoft.Extensions.Resilience)"],"domainConcepts":["Authentication/Identity","AI/Knowledge (Microsoft.Extensions.AI)","Vector search (Pgvector)","Persistence/EF Core","Mapping/DTOs"],"keyDetails":"TargetFramework: net10.0 (line 22); ImplicitUsings enabled (line 23); Nullable enabled (line 24); GenerateRuntimeConfigurationFiles true (line 25). NuGet packages: FluentResults, Mapster, Mapster.DependencyInjection, MediatR, Microsoft.AspNetCore.Authorization, Microsoft.EntityFrameworkCore, Microsoft.Extensions.AI, Microsoft.Extensions.Identity.Core, Pgvector.EntityFrameworkCore, Microsoft.Extensions.Resilience (lines 9-18). Project references to Domain and Data projects (lines 4-5).","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Queries__Graph__GetKnowledgeGraphQuery.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Graph__GetKnowledgeGraphQuery.cs.json
new file mode 100644
index 0000000..18c6065
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Graph__GetKnowledgeGraphQuery.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs","purpose":"Defines a CQRS query record that carries input for extracting a knowledge graph from text within a tenant and optional ebook scope.","classification":{"role":"handler","layer":"application","confidence":0.9,"evidence":["Query naming pattern","File path: NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs","Type implements IQuery<GraphDataDto>"]},"className":"GetKnowledgeGraphQuery","methods":[{"name":"GetKnowledgeGraphQuery (ctor)","line":8,"endLine":8,"signature":"(Text: string, TenantId: string, EbookId: Guid? = null) -> GetKnowledgeGraphQuery","purpose":"Constructs the query DTO carrying text, tenant, and optional ebook id for knowledge-graph extraction.","calls":[],"actions":[{"id":"ctor_8","kind":"mapping","label":"Primary record constructor","line":8,"detail":"Immutable record positional parameters: Text, TenantId, EbookId (nullable, default null)","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"GetKnowledgeGraphQuery","kind":"query","line":8,"purpose":"Represents a request to produce a GraphDataDto from provided text within a tenant and optional ebook context.","fields":[{"name":"Text","type":"string","required":true,"line":8,"description":"Chapter or page content to extract the graph from."},{"name":"TenantId","type":"string","required":true,"line":8,"description":"Tenant scope for knowledge extraction and caching."},{"name":"EbookId","type":"Guid?","required":false,"line":8,"description":"Optional Ebook ID to link the knowledge units to."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Abstractions.Messaging (referenced via using)","GraphDataDto (referenced in IQuery<GraphDataDto>, file unknown)"],"patterns":["CQRS Query"],"domainConcepts":["Knowledge Graph","Tenant","Ebook"],"keyDetails":"Lightweight immutable record used as the application-layer query DTO; no runtime logic in this file.","orchestrationMethods":[],"typedContracts":[{"name":"GetKnowledgeGraphQuery","kind":"query","line":8,"fieldCount":3,"evidencePaths":["NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"GetKnowledgeGraphQuery","line":8,"summary":"query with 3 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Queries__Graph__GetKnowledgeGraphQueryHandler.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Graph__GetKnowledgeGraphQueryHandler.cs.json
new file mode 100644
index 0000000..0d2b806
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Graph__GetKnowledgeGraphQueryHandler.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Queries/Graph/GetKnowledgeGraphQueryHandler.cs","purpose":"Handles GetKnowledgeGraphQuery by delegating to an IKnowledgeService to produce a GraphDataDto (returns empty graph for empty input or on null results).","classification":{"role":"handler","layer":"application","confidence":0.9,"evidence":["class implements IQueryHandler<GetKnowledgeGraphQuery, GraphDataDto> (line 7)","uses IKnowledgeService to obtain graph data (lines 9, 21)"]},"className":"GetKnowledgeGraphQueryHandler","methods":[{"name":"GetKnowledgeGraphQueryHandler","line":11,"endLine":14,"signature":"(knowledgeService: IKnowledgeService) -> GetKnowledgeGraphQueryHandler","purpose":"Constructor — captures IKnowledgeService dependency.","calls":[],"actions":[{"id":"assignment_13","kind":"mapping","label":"Assigns dependency to field","line":13,"detail":"_knowledgeService = knowledgeService","visibility":"detail-only","confidence":0.7}]},{"name":"Handle","line":16,"endLine":33,"signature":"(request: GetKnowledgeGraphQuery, cancellationToken: CancellationToken) -> Task<Result<GraphDataDto>>","purpose":"Handles the query: validates input, calls IKnowledgeService.GetGraphDataAsync, and maps the result to Result<GraphDataDto> with guard/fallback behavior.","calls":[{"targetFile":"NexusReader.Application.Abstractions.Services/IKnowledgeService","targetMethod":"GetGraphDataAsync","callLine":21,"paramSummary":"request.Text, request.TenantId, ebookId: request.EbookId, cancellationToken"}],"actions":[{"id":"guard-clause_18","kind":"guard-clause","label":"Empty-text fast-return","line":18,"detail":"if text is empty returns Result.Ok(new GraphDataDto())","conditionSummary":"string.IsNullOrWhiteSpace(request.Text)","outcomeLabels":["return empty GraphDataDto","skip service call"],"visibility":"detail-only","confidence":0.7},{"id":"handle_branch_18_0","kind":"branch","label":"Evaluates branch condition","line":18,"detail":"if (string.IsNullOrWhiteSpace(request.Text))","conditionSummary":"string.IsNullOrWhiteSpace(request.Text)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"handle_return_19_1","kind":"return","label":"Returns result","line":19,"detail":"return Result.Ok(new GraphDataDto());","visibility":"detail-only","confidence":0.7},{"id":"external-call_21","kind":"external-call","label":"Fetch graph data","line":21,"detail":"Calls _knowledgeService.GetGraphDataAsync(...) and awaits result; passes cancellationToken","visibility":"detail-only","confidence":0.7},{"id":"handle_branch_27_2","kind":"branch","label":"Evaluates branch condition","line":27,"detail":"if (result.IsFailed)","conditionSummary":"result.IsFailed","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_27","kind":"branch","label":"Service failure handling","line":27,"detail":"Propagates errors from knowledge service as Result.Fail","conditionSummary":"result.IsFailed","outcomeLabels":["return Result.Fail<GraphDataDto>(result.Errors)","continue"],"visibility":"detail-only","confidence":0.7},{"id":"handle_return_28_3","kind":"return","label":"Returns result","line":28,"detail":"return Result.Fail<GraphDataDto>(result.Errors);","visibility":"detail-only","confidence":0.7},{"id":"null-check_32","kind":"mapping","label":"Graph null -> empty DTO","line":32,"detail":"Returns Result.Ok(new GraphDataDto()) if graph null, otherwise Result.Ok(graph)","conditionSummary":"graph is null","outcomeLabels":["return empty GraphDataDto","return graph"],"visibility":"detail-only","confidence":0.7},{"id":"handle_return_32_4","kind":"return","label":"Returns result","line":32,"detail":"return graph is null ? 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Queries__Graph__GraphViewModels.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Graph__GraphViewModels.cs.json
new file mode 100644
index 0000000..ed97b0d
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Graph__GraphViewModels.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Queries/Graph/GraphViewModels.cs","purpose":"Defines simple DTO/view-model records for graph visualization: node, link, and a container holding collections of nodes and links used by application queries.","classification":{"role":"dto","layer":"application","confidence":0.9,"evidence":["DTO/view-model naming pattern","Namespace NexusReader.Application.Queries.Graph indicates application query DTOs","File contains only record types named GraphNodeDto, GraphLinkDto, GraphDataDto"]},"className":"","methods":[],"types":[{"name":"GraphNodeDto","kind":"dto","line":3,"purpose":"Represents a single graph node with id, display label, group and optional type.","fields":[{"name":"Id","type":"string","required":true,"line":3,"description":"Unique identifier for the node (constructor parameter)"},{"name":"Label","type":"string","required":true,"line":3,"description":"Human-readable label for the node (constructor parameter)"},{"name":"Group","type":"string","required":true,"line":3,"description":"Grouping/category for visualization (constructor parameter)"},{"name":"Type","type":"string?","required":false,"line":3,"description":"Optional semantic type of the node (nullable constructor parameter)"}]},{"name":"GraphLinkDto","kind":"dto","line":4,"purpose":"Represents an edge/link between two nodes with a relation type and optional weight/value.","fields":[{"name":"Source","type":"string","required":true,"line":4,"description":"Source node id (constructor parameter)"},{"name":"Target","type":"string","required":true,"line":4,"description":"Target node id (constructor parameter)"},{"name":"RelationType","type":"string","required":true,"line":4,"description":"Label/type of the relationship (constructor parameter)"},{"name":"Value","type":"int","required":true,"line":4,"description":"Numeric weight/strength of the link with default 1 (constructor parameter)"}]},{"name":"GraphDataDto","kind":"dto","line":5,"purpose":"Container holding collections of GraphNodeDto and GraphLinkDto for graph results returned by queries.","fields":[{"name":"Nodes","type":"List<GraphNodeDto>","required":true,"line":7,"description":"List of nodes (init-only property, defaults to empty list)"},{"name":"Links","type":"List<GraphLinkDto>","required":true,"line":8,"description":"List of links/edges (init-only property, defaults to empty list)"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["DTO","View-Model"],"domainConcepts":["Graph","Node","Link"],"keyDetails":"Minimal, immutable record types used to transport graph data in application query responses; no behavior, persistence, or external calls present.","orchestrationMethods":[],"typedContracts":[{"name":"GraphNodeDto","kind":"dto","line":3,"fieldCount":4,"evidencePaths":["NexusReader.Application/Queries/Graph/GraphViewModels.cs"]},{"name":"GraphLinkDto","kind":"dto","line":4,"fieldCount":4,"evidencePaths":["NexusReader.Application/Queries/Graph/GraphViewModels.cs"]},{"name":"GraphDataDto","kind":"dto","line":5,"fieldCount":2,"evidencePaths":["NexusReader.Application/Queries/Graph/GraphViewModels.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"GraphNodeDto","line":3,"summary":"dto with 4 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Queries/Graph/GraphViewModels.cs"]},{"kind":"typed-contract","label":"GraphLinkDto","line":4,"summary":"dto with 4 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Queries/Graph/GraphViewModels.cs"]},{"kind":"typed-contract","label":"GraphDataDto","line":5,"summary":"dto with 2 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Queries/Graph/GraphViewModels.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Queries__Library__AskLibraryQuestionQuery.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Library__AskLibraryQuestionQuery.cs.json
new file mode 100644
index 0000000..d935854
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Library__AskLibraryQuestionQuery.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs","purpose":"Defines a MediatR query (AskLibraryQuestionQuery) and its handler which validates the request and delegates question answering to an IKnowledgeService, returning a grounded AI response.","classification":{"role":"handler","layer":"application","confidence":0.9,"evidence":["Command pattern","Implements MediatR IRequest/IRequestHandler (lines 11, 14)","Namespace NexusReader.Application.Queries.Library and uses IKnowledgeService (lines 6, 9, 16)"]},"className":"AskLibraryQuestionQueryHandler","methods":[{"name":"AskLibraryQuestionQueryHandler","line":18,"endLine":21,"signature":"(knowledgeService: IKnowledgeService) -> void","purpose":"Constructor that injects the IKnowledgeService dependency.","calls":[],"actions":[{"id":"assignment_20","kind":"mapping","label":"Store injected dependency","line":20,"detail":"_knowledgeService = 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Queries__Library__GetMyEbooksQuery.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Library__GetMyEbooksQuery.cs.json
new file mode 100644
index 0000000..9e554e1
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Library__GetMyEbooksQuery.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Queries/Library/GetMyEbooksQuery.cs","purpose":"MediatR query + handler that reads the current user's ebooks from the EF Core AppDbContext, projects them to LastReadBookDto and returns a successful FluentResults Result with the list.","classification":{"role":"handler","layer":"application","confidence":0.85,"evidence":["Command pattern","Implements MediatR IRequestHandler<GetMyEbooksQuery, Result<List<LastReadBookDto>>>","Reads AppDbContext.Ebooks and returns DTOs (projection)"]},"className":"GetMyEbooksQueryHandler","methods":[{"name":"Handle","line":20,"endLine":45,"signature":"(request: GetMyEbooksQuery, cancellationToken: CancellationToken) -> Task<Result<List<LastReadBookDto>>>","purpose":"Creates a DB context, queries the Ebooks owned by the given user, projects each entity to LastReadBookDto (with a default for LastChapter), and returns Result.Ok(list).","calls":[{"targetFile":"unknown","targetMethod":"CreateDbContextAsync","callLine":22,"paramSummary":"cancellationToken (to create an AppDbContext instance via IDbContextFactory)"},{"targetFile":"NexusReader.Data.Persistence/AppDbContext.cs","targetMethod":"Ebooks (DbSet)","callLine":24,"paramSummary":"Access DbSet<Ebook> to query rows filtered by UserId"},{"targetFile":"NexusReader.Application.DTOs.User","targetMethod":"LastReadBookDto (projection/init)","callLine":27,"paramSummary":"maps entity properties: Id, Title, Author -> AuthorDto, CoverUrl, Progress, LastChapter (with fallback), LastChapterIndex, Description"},{"targetFile":"unknown","targetMethod":"ToListAsync","callLine":42,"paramSummary":"cancellationToken (executes the EF Core query and returns List<LastReadBookDto>)"},{"targetFile":"unknown","targetMethod":"Result.Ok","callLine":44,"paramSummary":"ebooks (List<LastReadBookDto>) to wrap into a successful FluentResults.Result"}],"actions":[{"id":"resource-acquisition_22","kind":"mapping","label":"creates DB context with using + await","line":22,"detail":"using var dbContext = await _dbContextFactory.CreateDbContextAsync(cancellationToken)","visibility":"detail-only","confidence":0.7},{"id":"persistence-read_24","kind":"mapping","label":"query Ebooks filtered by UserId","line":24,"detail":"dbContext.Ebooks.Where(e => e.UserId == request.UserId)","visibility":"detail-only","confidence":0.7},{"id":"handle_repository-read_25_0","kind":"repository-read","label":"Reads repository or persistence state","line":25,"detail":".Where(e => e.UserId == request.UserId)","visibility":"secondary-visible","confidence":0.86},{"id":"branch/order_26","kind":"mapping","label":"orders by LastReadDate or AddedDate","line":26,"detail":"OrderByDescending(e => e.LastReadDate ?? 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Queries__Library__SearchLibrarySemanticallyQuery.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Library__SearchLibrarySemanticallyQuery.cs.json
new file mode 100644
index 0000000..750d349
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Library__SearchLibrarySemanticallyQuery.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs","purpose":"Implements a MediatR query and handler that semantically searches a tenant-scoped semantic cache using an embedding generated for the query text (with retry) and returns mapped DTO results.","classification":{"role":"handler","layer":"application","confidence":0.9,"evidence":["Command pattern","Implements IRequestHandler<SearchLibrarySemanticallyQuery,...> (MediatR)","Lives in namespace NexusReader.Application.Queries.Library and uses application DTOs and DbContext"]},"className":"SearchLibrarySemanticallyQueryHandler","methods":[{"name":"SearchLibrarySemanticallyQuery","line":19,"endLine":20,"signature":"(QueryText: string, TenantId: string, Limit: int = 5) -> IRequest<Result<List<SemanticSearchResultDto>>>","purpose":"DTO/Query record that represents a semantic search request (query text, tenant, optional 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Queries__Quiz__QuizViewModels.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Quiz__QuizViewModels.cs.json
new file mode 100644
index 0000000..c343b82
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Quiz__QuizViewModels.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Queries/Quiz/QuizViewModels.cs","purpose":"Defines lightweight Data Transfer Objects (records) used by the Application layer to represent quizzes and quiz questions for queries and view models.","classification":{"role":"dto","layer":"application","confidence":0.9,"evidence":["DTO/view-model naming pattern","Namespace: NexusReader.Application.Queries.Quiz","File contains record types named QuizDto and QuizQuestionDto used for query/view-model purposes"]},"className":"","methods":[],"types":[{"name":"QuizQuestionDto","kind":"dto","line":3,"purpose":"Represents a single quiz question with its possible options and the index of the correct option.","fields":[{"name":"Question","type":"string","required":true,"line":3,"description":"The text of the question"},{"name":"Options","type":"List<string>","required":true,"line":3,"description":"Possible answer options"},{"name":"CorrectIndex","type":"int","required":true,"line":3,"description":"Zero-based index of the correct option in Options"}]},{"name":"QuizDto","kind":"dto","line":4,"purpose":"Holds a collection of quiz questions to represent an entire quiz payload.","fields":[{"name":"Questions","type":"List<QuizQuestionDto>","required":true,"line":4,"description":"List of quiz questions"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["DTO","Record"],"domainConcepts":["Quiz","Question","Options"],"keyDetails":"Very small file: only two immutable record DTOs used for query/view-model surface; no methods or external calls.","orchestrationMethods":[],"typedContracts":[{"name":"QuizQuestionDto","kind":"dto","line":3,"fieldCount":3,"evidencePaths":["NexusReader.Application/Queries/Quiz/QuizViewModels.cs"]},{"name":"QuizDto","kind":"dto","line":4,"fieldCount":1,"evidencePaths":["NexusReader.Application/Queries/Quiz/QuizViewModels.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"QuizQuestionDto","line":3,"summary":"dto with 3 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Queries/Quiz/QuizViewModels.cs"]},{"kind":"typed-contract","label":"QuizDto","line":4,"summary":"dto with 1 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Queries/Quiz/QuizViewModels.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Queries__Reader__GetReaderPageQuery.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Reader__GetReaderPageQuery.cs.json
new file mode 100644
index 0000000..d0c0d3a
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Reader__GetReaderPageQuery.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs","purpose":"Defines a CQRS query record that models a request to retrieve a specific chapter/page of a user's ebook (ReaderPageViewModel) and carries tenant/user context.","classification":{"role":"handler","layer":"application","confidence":0.9,"evidence":["Query naming pattern","Namespace: NexusReader.Application.Queries.Reader","Record implements IQuery<ReaderPageViewModel>","File located under Application project area"]},"className":"GetReaderPageQuery","methods":[],"types":[{"name":"GetReaderPageQuery","kind":"query","line":11,"purpose":"Represents a request to fetch a reader page (chapter) for a specific ebook and user (tenant isolation).","fields":[{"name":"EbookId","type":"Guid","required":true,"line":12,"description":"Identifier of the ebook to read"},{"name":"ChapterIndex","type":"int","required":true,"line":13,"description":"Zero-based index of the chapter/page to retrieve (defaults to 0)"},{"name":"UserId","type":"string?","required":false,"line":14,"description":"Authenticated user's ID for tenant isolation (optional)"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Abstractions.Messaging (using at line 1)","ReaderPageViewModel (referenced in generic IQuery<>; defined elsewhere)"],"patterns":["CQRS Query","Record DTO"],"domainConcepts":["Ebook","Chapter / ReaderPage","Tenant / User isolation"],"keyDetails":"Simple immutable record used as the application-layer query message type: GetReaderPageQuery(Guid EbookId, int ChapterIndex = 0, string? UserId = null) : IQuery<ReaderPageViewModel> (declared lines 11-14).","orchestrationMethods":[],"typedContracts":[{"name":"GetReaderPageQuery","kind":"query","line":11,"fieldCount":3,"evidencePaths":["NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"GetReaderPageQuery","line":11,"summary":"query with 3 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Queries__Reader__GetReaderPageQueryHandler.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Reader__GetReaderPageQueryHandler.cs.json
new file mode 100644
index 0000000..8a0a064
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Reader__GetReaderPageQueryHandler.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Queries/Reader/GetReaderPageQueryHandler.cs","purpose":"Handles GetReaderPageQuery requests by delegating to an EPUB reader service to produce a ReaderPageViewModel result.","classification":{"role":"handler","layer":"application","confidence":0.86,"evidence":["Namespace: NexusReader.Application.Queries.Reader","Implements IQueryHandler<GetReaderPageQuery, ReaderPageViewModel>","Delegates to an injected IEpubReader service"]},"className":"GetReaderPageQueryHandler","methods":[{"name":"GetReaderPageQueryHandler","line":11,"endLine":14,"signature":"(epubReader: IEpubReader) -> void","purpose":"Constructs the handler and captures the IEpubReader dependency.","calls":[],"actions":[{"id":"assignment_13","kind":"mapping","label":"Assign DI dependency","line":13,"detail":"_epubReader = epubReader","visibility":"detail-only","confidence":0.7}]},{"name":"Handle","line":16,"endLine":19,"signature":"(request: GetReaderPageQuery, cancellationToken: CancellationToken) -> Task<Result<ReaderPageViewModel>>","purpose":"Loads EPUB content for the requested ebook/chapter/user by delegating to IEpubReader.GetEpubContentAsync and returns the Result-wrapped ReaderPageViewModel.","calls":[{"targetFile":"NexusReader.Application.Abstractions.Services/IEpubReader.cs","targetMethod":"GetEpubContentAsync","callLine":18,"paramSummary":"request.EbookId, request.ChapterIndex, request.UserId, cancellationToken"}],"actions":[{"id":"external-call_18","kind":"external-call","label":"Delegates content loading","line":18,"detail":"Calls IEpubReader.GetEpubContentAsync and directly returns its Task<Result<ReaderPageViewModel>>","visibility":"detail-only","confidence":0.7},{"id":"return_18","kind":"return","label":"Returns delegated Task result","line":18,"detail":"No local processing; returns the Task from the EPUB reader","visibility":"detail-only","confidence":0.7},{"id":"handle_return_18_0","kind":"return","label":"Returns result","line":18,"detail":"return _epubReader.GetEpubContentAsync(request.EbookId, request.ChapterIndex, request.UserId, cancellationToken);","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"GetReaderPageQueryHandler","kind":"model","line":7,"purpose":"Application handler that processes GetReaderPageQuery by calling the EPUB reader service.","fields":[{"name":"_epubReader","type":"IEpubReader","required":true,"line":9,"description":"Injected service used to load EPUB content"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Abstractions.Messaging/IQueryHandler","NexusReader.Application.Abstractions.Services/IEpubReader","GetReaderPageQuery","ReaderPageViewModel","FluentResults/Result"],"patterns":["CQRS Handler","Dependency Injection","Adapter/Facade (delegation to service)"],"domainConcepts":["Ebook","Chapter","Reader session/content"],"keyDetails":"The handler performs no local business logic or validation; it directly returns the Task produced by IEpubReader.GetEpubContentAsync, making the EPUB reader the authority for content retrieval and error/result shaping.","orchestrationMethods":[{"name":"Handle","line":16,"confidence":0.65,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["external-call","return"],"evidencePaths":["NexusReader.Application/Queries/Reader/GetReaderPageQueryHandler.cs","NexusReader.Application.Abstractions.Services/IEpubReader.cs"]}],"typedContracts":[{"name":"GetReaderPageQueryHandler","kind":"model","line":7,"fieldCount":1,"evidencePaths":["NexusReader.Application/Queries/Reader/GetReaderPageQueryHandler.cs"]}],"persistenceInteractions":[],"externalInteractions":[{"methodName":"Handle","line":18,"kind":"external-call","detail":"Calls IEpubReader.GetEpubContentAsync and directly returns its Task<Result<ReaderPageViewModel>>","evidencePaths":["NexusReader.Application/Queries/Reader/GetReaderPageQueryHandler.cs"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"Handle","line":16,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.65,"evidencePaths":["NexusReader.Application/Queries/Reader/GetReaderPageQueryHandler.cs","NexusReader.Application.Abstractions.Services/IEpubReader.cs"]},{"kind":"typed-contract","label":"GetReaderPageQueryHandler","line":7,"summary":"model with 1 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Queries/Reader/GetReaderPageQueryHandler.cs"]},{"kind":"external-call","label":"Handle","line":18,"summary":"Calls IEpubReader.GetEpubContentAsync and directly returns its Task<Result<ReaderPageViewModel>>","confidence":0.8,"evidencePaths":["NexusReader.Application/Queries/Reader/GetReaderPageQueryHandler.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Queries__Reader__LocalEpubMetadata.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Reader__LocalEpubMetadata.cs.json
new file mode 100644
index 0000000..9a15733
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Reader__LocalEpubMetadata.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Queries/Reader/LocalEpubMetadata.cs","purpose":"Defines a simple data-transfer record that carries metadata extracted from a local EPUB file (title, author, cover image, description) for use by application query handlers.","classification":{"role":"dto","layer":"application","confidence":0.86,"evidence":["Namespace: NexusReader.Application.Queries.Reader","File declares a record named LocalEpubMetadata used to carry EPUB metadata"]},"className":"LocalEpubMetadata","methods":[],"types":[{"name":"LocalEpubMetadata","kind":"dto","line":6,"purpose":"Holds extracted metadata from a local EPUB for query/transfer purposes.","fields":[{"name":"Title","type":"string","required":true,"line":11,"description":"The title of the book; non-nullable with default empty string."},{"name":"Author","type":"string","required":true,"line":16,"description":"The author(s) of the book; non-nullable with default empty string."},{"name":"CoverImage","type":"byte[]?","required":false,"line":21,"description":"Raw bytes of the cover image if available; nullable."},{"name":"Description","type":"string?","required":false,"line":26,"description":"Description or summary of the book; nullable."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["DTO","Record"],"domainConcepts":["Epub","Book","Metadata"],"keyDetails":"Pure data holder (record) with no runtime behavior; used in Application.Queries.Reader to transport EPUB metadata between components.","orchestrationMethods":[],"typedContracts":[{"name":"LocalEpubMetadata","kind":"dto","line":6,"fieldCount":4,"evidencePaths":["NexusReader.Application/Queries/Reader/LocalEpubMetadata.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"LocalEpubMetadata","line":6,"summary":"dto with 4 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Queries/Reader/LocalEpubMetadata.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Queries__Reader__ViewModels.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Reader__ViewModels.cs.json
new file mode 100644
index 0000000..cc14393
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Queries__Reader__ViewModels.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Queries/Reader/ViewModels.cs","purpose":"Defines application-level view models for the reader UI, including a polymorphic ContentBlock hierarchy (text and AI-trigger blocks) and a ReaderPageViewModel used by reader queries.","classification":{"role":"dto","layer":"application","confidence":0.9,"evidence":["DTO/view-model naming pattern","namespace NexusReader.Application.Queries.Reader","records named *ViewModel and ContentBlock used to carry UI/query data","JsonDerivedType attributes declare polymorphic JSON serialization for ContentBlock"]},"className":"","methods":[],"types":[{"name":"ContentBlock","kind":"model","line":7,"purpose":"Abstract base record for polymorphic content blocks shown on a reader page (polymorphic JSON root).","fields":[{"name":"Id","type":"string","required":true,"line":7,"description":"Identifier for the content block"}]},{"name":"TextSegmentBlock","kind":"model","line":8,"purpose":"Concrete ContentBlock carrying a text segment to render.","fields":[{"name":"Id","type":"string","required":true,"line":8,"description":"Inherited block identifier"},{"name":"Content","type":"string","required":true,"line":8,"description":"Text payload for the segment"}]},{"name":"AiActionTriggerBlock","kind":"model","line":9,"purpose":"Concrete ContentBlock representing an AI-driven action trigger with dialog and selectable options.","fields":[{"name":"Id","type":"string","required":true,"line":9,"description":"Inherited block identifier"},{"name":"Dialogue","type":"string","required":true,"line":9,"description":"Prompt or dialogue text presented to the user"},{"name":"ActionOptions","type":"List<string>","required":true,"line":9,"description":"List of selectable action identifiers or labels"}]},{"name":"ReaderPageViewModel","kind":"view-model","line":11,"purpose":"View model for a reader page, aggregating content blocks and chapter/eBook context used by queries and UI.","fields":[{"name":"Blocks","type":"List<ContentBlock>","required":true,"line":11,"description":"Ordered list of polymorphic content blocks to render on the page"},{"name":"CurrentChapterIndex","type":"int","required":true,"line":11,"description":"Zero-based index of the current chapter"},{"name":"TotalChapters","type":"int","required":true,"line":11,"description":"Total number of chapters in the eBook"},{"name":"ChapterTitle","type":"string","required":true,"line":11,"description":"Title of the current chapter"},{"name":"EbookId","type":"Guid","required":false,"line":11,"description":"Optional eBook identifier (defaults to Guid.Empty)"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["System.Text.Json.Serialization"],"patterns":["Polymorphic DTO","View Model","Record Types"],"domainConcepts":["ContentBlock","ReaderPage","Ebook","Chapter","AI Action"],"keyDetails":"Uses JsonDerivedType attributes (lines 5-6) to register two discriminators: \"text\" -> TextSegmentBlock and \"trigger\" -> AiActionTriggerBlock for System.Text.Json polymorphic serialization. File contains only immutable record types (no methods).","orchestrationMethods":[],"typedContracts":[{"name":"ContentBlock","kind":"model","line":7,"fieldCount":1,"evidencePaths":["NexusReader.Application/Queries/Reader/ViewModels.cs"]},{"name":"TextSegmentBlock","kind":"model","line":8,"fieldCount":2,"evidencePaths":["NexusReader.Application/Queries/Reader/ViewModels.cs"]},{"name":"AiActionTriggerBlock","kind":"model","line":9,"fieldCount":3,"evidencePaths":["NexusReader.Application/Queries/Reader/ViewModels.cs"]},{"name":"ReaderPageViewModel","kind":"view-model","line":11,"fieldCount":5,"evidencePaths":["NexusReader.Application/Queries/Reader/ViewModels.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"ContentBlock","line":7,"summary":"model with 1 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Queries/Reader/ViewModels.cs"]},{"kind":"typed-contract","label":"TextSegmentBlock","line":8,"summary":"model with 2 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Queries/Reader/ViewModels.cs"]},{"kind":"typed-contract","label":"AiActionTriggerBlock","line":9,"summary":"model with 3 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Queries/Reader/ViewModels.cs"]},{"kind":"typed-contract","label":"ReaderPageViewModel","line":11,"summary":"view-model with 5 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Queries/Reader/ViewModels.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Queries__System__GetInitializationStatusQuery.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Queries__System__GetInitializationStatusQuery.cs.json
new file mode 100644
index 0000000..c12ee44
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Queries__System__GetInitializationStatusQuery.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Queries/System/GetInitializationStatusQuery.cs","purpose":"Defines a CQRS query message used to request the application's initialization status (returns a string).","classification":{"role":"handler","layer":"application","confidence":0.9,"evidence":["Query naming pattern","Namespace: NexusReader.Application.Queries.System","Type implements IQuery<string> from the messaging abstractions","File placed under Application/Queries/System (query/command pattern)"]},"className":"GetInitializationStatusQuery","methods":[],"types":[{"name":"GetInitializationStatusQuery","kind":"query","line":5,"purpose":"Marker/query DTO representing a request to get the initialization status as a string.","fields":[]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Abstractions.Messaging"],"patterns":["CQRS (Query object)"],"domainConcepts":["InitializationStatus"],"keyDetails":"A lightweight record with no payload used as a request message (IQuery<string>) to fetch initialization status; runtime behavior implemented by a separate query handler elsewhere.","orchestrationMethods":[],"typedContracts":[{"name":"GetInitializationStatusQuery","kind":"query","line":5,"fieldCount":0,"evidencePaths":["NexusReader.Application/Queries/System/GetInitializationStatusQuery.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"GetInitializationStatusQuery","line":5,"summary":"query with 0 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Queries/System/GetInitializationStatusQuery.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Queries__System__GetInitializationStatusQueryHandler.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Queries__System__GetInitializationStatusQueryHandler.cs.json
new file mode 100644
index 0000000..3aaa8bc
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Queries__System__GetInitializationStatusQueryHandler.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Queries/System/GetInitializationStatusQueryHandler.cs","purpose":"Query handler that answers whether the Nexus E-Reader application is initialized; returns a constant success message.","classification":{"role":"handler","layer":"application","confidence":0.85,"evidence":["Namespace: NexusReader.Application.Queries.System","Class implements IQueryHandler<GetInitializationStatusQuery, string>","Single Handle method returning a fixed initialization status message"]},"className":"GetInitializationStatusQueryHandler","methods":[{"name":"Handle","line":8,"endLine":11,"signature":"(request: GetInitializationStatusQuery, cancellationToken: CancellationToken) -> Task<Result<string>>","purpose":"Handles the GetInitializationStatusQuery by returning a constant success message indicating the application is initialized.","calls":[],"actions":[{"id":"return_10","kind":"return","label":"Returns constant initialization message","line":10,"detail":"Task.FromResult(Result.Ok(\"Nexus E-Reader Application is fully initialized and operational.\"))","visibility":"detail-only","confidence":0.7},{"id":"handle_return_10_0","kind":"return","label":"Returns result","line":10,"detail":"return Task.FromResult(Result.Ok(\"Nexus E-Reader Application is fully initialized and operational.\"));","visibility":"detail-only","confidence":0.7},{"id":"constant-response_10","kind":"mapping","label":"Static successful result","line":10,"detail":"Always returns Result.Ok with a fixed string; no branching or external calls.","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"GetInitializationStatusQueryHandler","kind":"model","line":6,"purpose":"Query handler type implementing IQueryHandler to provide initialization status.","fields":[{"name":"class-modifiers","type":"internal sealed","required":true,"line":6,"description":"Class is internal and sealed; no instance state or constructor logic present."},{"name":"implemented-interface","type":"IQueryHandler<GetInitializationStatusQuery, string>","required":true,"line":6,"description":"Indicates this class handles the GetInitializationStatusQuery via the application's messaging abstraction."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Abstractions.Messaging","FluentResults"],"patterns":["Query Handler","Mediator"],"domainConcepts":["InitializationStatus","Application health / readiness"],"keyDetails":"Single-responsibility handler that always returns a fixed ready message; no external calls, no branching, suitable as a simple health/readiness query endpoint.","orchestrationMethods":[],"typedContracts":[{"name":"GetInitializationStatusQueryHandler","kind":"model","line":6,"fieldCount":2,"evidencePaths":["NexusReader.Application/Queries/System/GetInitializationStatusQueryHandler.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"GetInitializationStatusQueryHandler","line":6,"summary":"model with 2 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Queries/System/GetInitializationStatusQueryHandler.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Queries__User__GetUserProfileQuery.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Queries__User__GetUserProfileQuery.cs.json
new file mode 100644
index 0000000..5a9a7ee
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Queries__User__GetUserProfileQuery.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Queries/User/GetUserProfileQuery.cs","purpose":"Defines a MediatR query message representing a request to retrieve a user's profile (returns a FluentResults Result wrapping a UserProfileDto).","classification":{"role":"handler","layer":"application","confidence":0.9,"evidence":["Command pattern","Line 7: record implements MediatR IRequest<Result<UserProfileDto>>","Namespace: NexusReader.Application.Queries.User indicates an application-layer query object"]},"className":"GetUserProfileQuery","methods":[],"types":[{"name":"GetUserProfileQuery","kind":"query","line":7,"purpose":"CQRS query message carrying the user identifier to request a UserProfileDto wrapped in a FluentResults Result.","fields":[{"name":"UserId","type":"string","required":true,"line":7,"description":"Identifier of the user whose profile is being requested"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.DTOs.User (UserProfileDto)","MediatR","FluentResults"],"patterns":["CQRS Query","MediatR Request/Response Message"],"domainConcepts":["User","UserProfile"],"keyDetails":"Single-line record type (line 7) implementing IRequest<Result<UserProfileDto>>; no runtime logic here — a simple message/DTO used by a handler elsewhere.","orchestrationMethods":[],"typedContracts":[{"name":"GetUserProfileQuery","kind":"query","line":7,"fieldCount":1,"evidencePaths":["NexusReader.Application/Queries/User/GetUserProfileQuery.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"GetUserProfileQuery","line":7,"summary":"query with 1 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Queries/User/GetUserProfileQuery.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Queries__User__GetUserProfileQueryHandler.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Queries__User__GetUserProfileQueryHandler.cs.json
new file mode 100644
index 0000000..4b14177
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Queries__User__GetUserProfileQueryHandler.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Queries/User/GetUserProfileQueryHandler.cs","purpose":"MediatR query handler that reads a user's profile from the EF Core database, projects it into a UserProfileDto with computed fields (average quiz score, last read book, roles, subscription plan), and returns a FluentResults Result with success or failure.","classification":{"role":"handler","layer":"application","confidence":0.9,"evidence":["Implements MediatR IRequestHandler<GetUserProfileQuery, Result<UserProfileDto>> (line 9)","Uses IDbContextFactory<AppDbContext> to create DbContext and issues EF Core queries against Users / UserRoles / Roles (lines 11, 20-58)"]},"className":"GetUserProfileQueryHandler","methods":[{"name":"GetUserProfileQueryHandler","line":13,"endLine":16,"signature":"(dbContextFactory: IDbContextFactory<AppDbContext>) -> void","purpose":"Constructor that captures the injected IDbContextFactory for creating AppDbContext instances.","calls":[],"actions":[{"id":"assign_15","kind":"mapping","label":"Stores injected DB context factory","line":15,"detail":"_dbContextFactory = dbContextFactory","visibility":"detail-only","confidence":0.7}]},{"name":"Handle","line":18,"endLine":66,"signature":"(request: GetUserProfileQuery, cancellationToken: CancellationToken) -> Task<Result<UserProfileDto>>","purpose":"Creates a DbContext, queries and projects a user record (including computed/related data) into UserProfileDto and returns Result.Ok(profile) or Result.Fail if not found.","calls":[],"actions":[{"id":"resource-acquire_20","kind":"mapping","label":"Create and scope DbContext","line":20,"detail":"using var dbContext = await _dbContextFactory.CreateDbContextAsync(cancellationToken)","visibility":"detail-only","confidence":0.7},{"id":"query_21","kind":"mapping","label":"Project user to UserProfileDto with related data","line":21,"detail":"dbContext.Users.Where(u => u.Id == request.UserId).Select(...) then FirstOrDefaultAsync","visibility":"detail-only","confidence":0.7},{"id":"handle_repository-read_22_0","kind":"repository-read","label":"Reads repository or persistence state","line":22,"detail":".Where(u => u.Id == request.UserId)","visibility":"secondary-visible","confidence":0.86},{"id":"mapping_23","kind":"mapping","label":"Map scalar and related fields to DTO","line":23,"detail":"Email, AITokensUsed, SubscriptionPlan -> SubscriptionPlanDto, LastReadBook -> LastReadBookDto, Roles array","visibility":"detail-only","confidence":0.7},{"id":"handle_mapping_23_1","kind":"mapping","label":"Maps data or transforms shape","line":23,"detail":".Select(u => new UserProfileDto","visibility":"detail-only","confidence":0.74},{"id":"branch_27","kind":"branch","label":"Compute TenantId safe parse","line":27,"detail":"If string length 36 -> new Guid(u.TenantId) else Guid.Empty","conditionSummary":"u.TenantId != null && u.TenantId.Length == 36","outcomeLabels":["parse to Guid","Guid.Empty"],"visibility":"detail-only","confidence":0.7},{"id":"branch_35","kind":"branch","label":"Compute AverageQuizScore with guard","line":35,"detail":"If any quiz has TotalQuestions>0, average (Score/TotalQuestions*100) cast to int, else 0","conditionSummary":"u.QuizResults.Any(q => q.TotalQuestions > 0)","outcomeLabels":["compute average percentage","0"],"visibility":"detail-only","confidence":0.7},{"id":"handle_repository-read_36_2","kind":"repository-read","label":"Reads repository or persistence state","line":36,"detail":"? 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(int)u.QuizResults.Where(q => q.TotalQuestions > 0).Average(q => (double)q.Score / q.TotalQuestions * 100)","confidence":0.82,"evidencePaths":["NexusReader.Application/Queries/User/GetUserProfileQueryHandler.cs"]},{"kind":"persistence","label":"Handle","line":52,"summary":"}).FirstOrDefault(),","confidence":0.82,"evidencePaths":["NexusReader.Application/Queries/User/GetUserProfileQueryHandler.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Security__Authorization__ProUserHandler.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Security__Authorization__ProUserHandler.cs.json
new file mode 100644
index 0000000..7048598
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Security__Authorization__ProUserHandler.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Security/Authorization/ProUserHandler.cs","purpose":"Authorization handler that enforces 'Pro' user access by checking a user's subscription plan and AI token usage in the application database.","classification":{"role":"handler","layer":"application","confidence":0.8,"evidence":["Class ProUserHandler inherits AuthorizationHandler<ProUserRequirement>","Namespace NexusReader.Application.Security.Authorization","Performs authorization checks against AppDbContext (data access)"]},"className":"ProUserHandler","methods":[{"name":"ProUserHandler","line":15,"endLine":18,"signature":"(dbContextFactory: IDbContextFactory<AppDbContext>) -> void","purpose":"Constructs the handler and stores a DbContext factory for later DB access.","calls":[],"actions":[{"id":"assignment_17","kind":"mapping","label":"Store DbContextFactory","line":17,"detail":"_dbContextFactory = dbContextFactory","visibility":"detail-only","confidence":0.7}]},{"name":"HandleRequirementAsync","line":20,"endLine":53,"signature":"(context: AuthorizationHandlerContext, requirement: ProUserRequirement) -> Task","purpose":"Evaluates if the current user satisfies the ProUserRequirement by reading user subscription and token counters from the DB and marks the requirement succeeded when rules match.","calls":[{"targetFile":"NexusReader.Data.Persistence","targetMethod":"AppDbContext.Users.FirstOrDefaultAsync (includes SubscriptionPlan)","callLine":31,"paramSummary":"predicate: u => u.Id == userId; 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Application__Security__Authorization__ProUserRequirement.cs.json b/src/.documentation/cache/summaries/NexusReader.Application__Security__Authorization__ProUserRequirement.cs.json
new file mode 100644
index 0000000..f2ab824
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Application__Security__Authorization__ProUserRequirement.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Application/Security/Authorization/ProUserRequirement.cs","purpose":"Defines a marker authorization requirement representing users with an active Pro subscription or sufficient AI tokens for policy-based authorization checks.","classification":{"role":"unknown","layer":"application","confidence":0.65,"evidence":["Namespace NexusReader.Application.Security.Authorization indicates application-layer auth policy code","Implements Microsoft.AspNetCore.Authorization.IAuthorizationRequirement which is used by ASP.NET Core authorization handlers/policies"]},"className":"ProUserRequirement","methods":[],"types":[{"name":"ProUserRequirement","kind":"model","line":8,"purpose":"Marker requirement type used in authorization policies to represent Pro users or users with sufficient AI tokens.","fields":[]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["Microsoft.AspNetCore.Authorization"],"patterns":["Authorization Requirement","Policy-based Authorization"],"domainConcepts":["Pro subscription","AI tokens","Authorization policy"],"keyDetails":"Empty marker class implementing IAuthorizationRequirement (lines 8–10); actual authorization logic is expected in corresponding AuthorizationHandler(s) elsewhere.","orchestrationMethods":[],"typedContracts":[{"name":"ProUserRequirement","kind":"model","line":8,"fieldCount":0,"evidencePaths":["NexusReader.Application/Security/Authorization/ProUserRequirement.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"ProUserRequirement","line":8,"summary":"model with 0 fields.","confidence":0.8,"evidencePaths":["NexusReader.Application/Security/Authorization/ProUserRequirement.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260428184727_InitialPostgres.Designer.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260428184727_InitialPostgres.Designer.cs.json
new file mode 100644
index 0000000..2d79f62
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260428184727_InitialPostgres.Designer.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Migrations/20260428184727_InitialPostgres.Designer.cs","purpose":"EF Core auto-generated migration designer that describes the target EF Core model for the InitialPostgres migration (table/column/index/relationship configuration for Postgres).","classification":{"role":"database-config","layer":"data","confidence":0.9,"evidence":["Class decorated with [Migration(\"20260428184727_InitialPostgres\")] and [DbContext(typeof(AppDbContext))]","Contains BuildTargetModel(ModelBuilder) which configures entities, keys, indexes, tables and relationships"]},"className":"InitialPostgres","methods":[{"name":"BuildTargetModel","line":19,"endLine":375,"signature":"(modelBuilder: ModelBuilder) -> void","purpose":"Populate the ModelBuilder with entity types, properties, keys, indexes, table mappings and relationships that represent the target schema for the InitialPostgres migration.","calls":[],"actions":[{"id":"annotation_22","kind":"mapping","label":"Model 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260428184727_InitialPostgres.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260428184727_InitialPostgres.cs.json
new file mode 100644
index 0000000..54f7f4e
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260428184727_InitialPostgres.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Migrations/20260428184727_InitialPostgres.cs","purpose":"EF Core migration that creates the initial PostgreSQL schema (identity tables, Ebooks, and a semantic knowledge cache) and corresponding indexes/foreign keys for the NexusReader.Data project.","classification":{"role":"database-config","layer":"data","confidence":0.9,"evidence":["Class inherits Migration and implements Up/Down methods","Calls migrationBuilder.CreateTable / CreateIndex / DropTable to define DB schema"]},"className":"InitialPostgres","methods":[{"name":"Up","line":13,"endLine":250,"signature":"(migrationBuilder: MigrationBuilder) -> void","purpose":"Defines and applies the initial DB schema: creates identity tables, Ebooks, SemanticKnowledgeCache, constraints, and indexes.","calls":[],"actions":[{"id":"create-table_15","kind":"mapping","label":"AspNetRoles","line":15,"detail":"Creates AspNetRoles table with Id, Name, NormalizedName, ConcurrencyStamp and PK on Id (lines 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260428185239_IncreaseHashLength.Designer.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260428185239_IncreaseHashLength.Designer.cs.json
new file mode 100644
index 0000000..43beda3
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260428185239_IncreaseHashLength.Designer.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.Designer.cs","purpose":"EF Core migration designer for 'IncreaseHashLength' that defines the target model snapshot used by migrations (table schemas, columns, keys, indexes, relationships).","classification":{"role":"database-config","layer":"data","confidence":0.9,"evidence":["Class is annotated with [DbContext(typeof(AppDbContext))] and [Migration(...)]","Method BuildTargetModel(ModelBuilder) configures entities, keys, indexes and relationships"]},"className":"IncreaseHashLength","methods":[{"name":"BuildTargetModel","line":19,"endLine":375,"signature":"(modelBuilder: ModelBuilder) -> void","purpose":"Constructs the EF Core model snapshot for this migration: annotations, entity shapes, keys, indexes, relationships and table mappings.","calls":[],"actions":[{"id":"pragma_21","kind":"mapping","label":"Disable/restore obsolete warnings around snapshot","line":21,"detail":"#pragma warning disable 612, 618 ... #pragma 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260428185239_IncreaseHashLength.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260428185239_IncreaseHashLength.cs.json
new file mode 100644
index 0000000..6bc62d4
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260428185239_IncreaseHashLength.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.cs","purpose":"EF Core migration that changes column definitions: increases the ContentHash length from 64 to 128 and converts several timestamp columns from timestamptz to timestamp without time zone (and provides the reverse in Down).","classification":{"role":"database-config","layer":"data","confidence":0.9,"evidence":["Class inherits Microsoft.EntityFrameworkCore.Migrations.Migration","Namespace NexusReader.Data.Migrations and methods Up/Down alter DB columns via MigrationBuilder.AlterColumn"]},"className":"IncreaseHashLength","methods":[{"name":"Up","line":12,"endLine":48,"signature":"(migrationBuilder: MigrationBuilder) -> void","purpose":"Apply schema changes: alter timestamp column types to 'timestamp without time zone' and increase ContentHash column length to 128.","calls":[],"actions":[{"id":"schema-change_14","kind":"mapping","label":"Alter CreatedAt on SemanticKnowledgeCache to timestamp without time zone","line":14,"detail":"AlterColumn<DateTime>(name: \"CreatedAt\", table: \"SemanticKnowledgeCache\", type: \"timestamp without time zone\", nullable: false, oldType: \"timestamp with time zone\")","visibility":"detail-only","confidence":0.7},{"id":"schema-change_22","kind":"mapping","label":"Increase ContentHash length on SemanticKnowledgeCache to 128","line":22,"detail":"AlterColumn<string>(name: \"ContentHash\", table: \"SemanticKnowledgeCache\", type: \"character varying(128)\", maxLength: 128, nullable: false, oldType: \"character varying(64)\", oldMaxLength: 64)","visibility":"detail-only","confidence":0.7},{"id":"schema-change_32","kind":"mapping","label":"Alter LastReadDate on Ebooks to timestamp without time zone (nullable)","line":32,"detail":"AlterColumn<DateTime>(name: \"LastReadDate\", table: \"Ebooks\", type: \"timestamp without time zone\", nullable: true, oldType: \"timestamp with time zone\", oldNullable: true)","visibility":"detail-only","confidence":0.7},{"id":"schema-change_41","kind":"mapping","label":"Alter AddedDate on Ebooks to timestamp without time zone","line":41,"detail":"AlterColumn<DateTime>(name: \"AddedDate\", table: \"Ebooks\", type: \"timestamp without time zone\", nullable: false, oldType: \"timestamp with time zone\")","visibility":"detail-only","confidence":0.7}]},{"name":"Down","line":51,"endLine":87,"signature":"(migrationBuilder: MigrationBuilder) -> void","purpose":"Revert schema changes applied in Up: restore timestamp with time zone types and reduce ContentHash length back to 64.","calls":[],"actions":[{"id":"schema-change_53","kind":"mapping","label":"Revert CreatedAt on SemanticKnowledgeCache to timestamp with time zone","line":53,"detail":"AlterColumn<DateTime>(name: \"CreatedAt\", table: \"SemanticKnowledgeCache\", type: \"timestamp with time zone\", nullable: false, oldType: \"timestamp without time zone\")","visibility":"detail-only","confidence":0.7},{"id":"schema-change_61","kind":"mapping","label":"Revert ContentHash length on SemanticKnowledgeCache to 64","line":61,"detail":"AlterColumn<string>(name: \"ContentHash\", table: \"SemanticKnowledgeCache\", type: \"character varying(64)\", maxLength: 64, nullable: false, oldType: \"character varying(128)\", oldMaxLength: 128)","visibility":"detail-only","confidence":0.7},{"id":"schema-change_71","kind":"mapping","label":"Revert LastReadDate on Ebooks to timestamp with time zone (nullable)","line":71,"detail":"AlterColumn<DateTime>(name: \"LastReadDate\", table: \"Ebooks\", type: \"timestamp with time zone\", nullable: true, oldType: \"timestamp without time zone\", oldNullable: true)","visibility":"detail-only","confidence":0.7},{"id":"schema-change_80","kind":"mapping","label":"Revert AddedDate on Ebooks to timestamp with time zone","line":80,"detail":"AlterColumn<DateTime>(name: \"AddedDate\", table: \"Ebooks\", type: \"timestamp with time zone\", nullable: false, oldType: \"timestamp without time zone\")","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"IncreaseHashLength","kind":"model","line":9,"purpose":"EF Core Migration class representing a schema change that increases a hash column length and modifies timestamp column types.","fields":[{"name":"Up","type":"method","required":true,"line":12,"description":"Applies the schema changes"},{"name":"Down","type":"method","required":true,"line":51,"description":"Reverts the schema changes"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["EF Core Migration"],"domainConcepts":["SemanticKnowledgeCache","Ebooks","ContentHash","CreatedAt","LastReadDate","AddedDate"],"keyDetails":"Changes: ContentHash in SemanticKnowledgeCache expanded from varchar(64) to varchar(128); 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260429080302_AddQuizResults.Designer.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260429080302_AddQuizResults.Designer.cs.json
new file mode 100644
index 0000000..d2828b2
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260429080302_AddQuizResults.Designer.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Migrations/20260429080302_AddQuizResults.Designer.cs","purpose":"EF Core migration designer that describes the target EF model for the AddQuizResults migration (database schema snapshot used by EF migrations).","classification":{"role":"database-config","layer":"data","confidence":0.9,"evidence":["File is in NexusReader.Data.Migrations and contains an EF Core Migration partial class","Contains BuildTargetModel(ModelBuilder) which configures entities, keys, indexes, and relationships"]},"className":"AddQuizResults","methods":[{"name":"BuildTargetModel","line":19,"endLine":418,"signature":"(modelBuilder: ModelBuilder) -> void","purpose":"Constructs the EF Core model snapshot for the migration: declares tables, columns, keys, indexes, annotations and relationships used by this migration.","calls":[],"actions":[{"id":"model-annotation_22","kind":"mapping","label":"Set product/version and max identifier 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260429080302_AddQuizResults.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260429080302_AddQuizResults.cs.json
new file mode 100644
index 0000000..2a11330
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260429080302_AddQuizResults.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Migrations/20260429080302_AddQuizResults.cs","purpose":"EF Core migration that adds a QuizResults table with columns, primary key, foreign key to AspNetUsers, and an index; and provides a Down method to drop the table.","classification":{"role":"database-config","layer":"data","confidence":0.9,"evidence":["Contains a Migration-derived class creating/dropping a database table","Namespace NexusReader.Data.Migrations and usage of MigrationBuilder.CreateTable/CreateIndex/DropTable"]},"className":"AddQuizResults","methods":[{"name":"Up","line":12,"endLine":40,"signature":"(migrationBuilder: MigrationBuilder) -> void","purpose":"Applies the migration: creates the QuizResults table with columns, primary key, foreign key to AspNetUsers (cascade) and an index on UserId.","calls":[],"actions":[{"id":"create-table_14","kind":"mapping","label":"Creates QuizResults table","line":14,"detail":"migrationBuilder.CreateTable(name: \"QuizResults\", columns: ...) defines columns Id, UserId, Topic, Score, TotalQuestions, CompletedDate","visibility":"detail-only","confidence":0.7},{"id":"column_18","kind":"mapping","label":"Id column","line":18,"detail":"Id: Guid, type uuid, nullable: false","visibility":"detail-only","confidence":0.7},{"id":"column_19","kind":"mapping","label":"UserId column","line":19,"detail":"UserId: string, type text, nullable: false","visibility":"detail-only","confidence":0.7},{"id":"column_20","kind":"mapping","label":"Topic column","line":20,"detail":"Topic: string, type text, nullable: false","visibility":"detail-only","confidence":0.7},{"id":"column_21","kind":"mapping","label":"Score column","line":21,"detail":"Score: int, type integer, nullable: false","visibility":"detail-only","confidence":0.7},{"id":"column_22","kind":"mapping","label":"TotalQuestions column","line":22,"detail":"TotalQuestions: int, type integer, nullable: false","visibility":"detail-only","confidence":0.7},{"id":"column_23","kind":"mapping","label":"CompletedDate column","line":23,"detail":"CompletedDate: DateTime, timestamp without time zone, nullable: false","visibility":"detail-only","confidence":0.7},{"id":"primary-key_27","kind":"mapping","label":"Primary key on Id","line":27,"detail":"table.PrimaryKey(\"PK_QuizResults\", x => x.Id)","visibility":"detail-only","confidence":0.7},{"id":"foreign-key_28","kind":"mapping","label":"FK to AspNetUsers on UserId (cascade)","line":28,"detail":"Foreign key references AspNetUsers(Id) with ReferentialAction.Cascade","visibility":"detail-only","confidence":0.7},{"id":"create-index_36","kind":"mapping","label":"Index on UserId","line":36,"detail":"migrationBuilder.CreateIndex(name: \"IX_QuizResults_UserId\", table: \"QuizResults\", column: \"UserId\")","visibility":"detail-only","confidence":0.7}]},{"name":"Down","line":43,"endLine":47,"signature":"(migrationBuilder: MigrationBuilder) -> void","purpose":"Reverts the migration by dropping the QuizResults table.","calls":[],"actions":[{"id":"drop-table_45","kind":"mapping","label":"Drops QuizResults table","line":45,"detail":"migrationBuilder.DropTable(name: \"QuizResults\")","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"QuizResults (table)","kind":"entity","line":14,"purpose":"Represents persisted quiz result records for users (table created by the migration).","fields":[{"name":"Id","type":"Guid","required":true,"line":18,"description":"Primary key identifier (uuid)"},{"name":"UserId","type":"string","required":true,"line":19,"description":"FK to AspNetUsers.Id (text), non-null"},{"name":"Topic","type":"string","required":true,"line":20,"description":"Quiz topic"},{"name":"Score","type":"int","required":true,"line":21,"description":"User score for the quiz"},{"name":"TotalQuestions","type":"int","required":true,"line":22,"description":"Total number of questions in the quiz"},{"name":"CompletedDate","type":"DateTime","required":true,"line":23,"description":"Timestamp when the quiz was completed"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["EF Core Migration"],"domainConcepts":["QuizResult","User (AspNetUsers)"],"keyDetails":"Adds QuizResults table with non-nullable columns, primary key on Id, foreign key to AspNetUsers.Id with cascade delete, and an index on UserId; Down drops the table.","orchestrationMethods":[],"typedContracts":[{"name":"QuizResults (table)","kind":"entity","line":14,"fieldCount":6,"evidencePaths":["NexusReader.Data/Migrations/20260429080302_AddQuizResults.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"QuizResults (table)","line":14,"summary":"entity with 6 fields.","confidence":0.8,"evidencePaths":["NexusReader.Data/Migrations/20260429080302_AddQuizResults.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260503175906_FinalNormalizedSubscriptionArchitecture.Designer.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260503175906_FinalNormalizedSubscriptionArchitecture.Designer.cs.json
new file mode 100644
index 0000000..2b886e4
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260503175906_FinalNormalizedSubscriptionArchitecture.Designer.cs.json
@@ -0,0 +1 @@
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diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260503175906_FinalNormalizedSubscriptionArchitecture.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260503175906_FinalNormalizedSubscriptionArchitecture.cs.json
new file mode 100644
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--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260503175906_FinalNormalizedSubscriptionArchitecture.cs.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs.json
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index 0000000..51b5265
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs","purpose":"EF Core migration designer that reconstructs the target EF model for the migration \"20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens\"; it configures entities, relationships, indexes and seeds SubscriptionPlan data.","classification":{"role":"database-config","layer":"data","confidence":0.9,"evidence":["DTO/view-model naming pattern","Class annotated with [DbContext(typeof(AppDbContext))] and [Migration(...)]","Contains BuildTargetModel(ModelBuilder) which defines entities, relationships, indexes and HasData seed"]},"className":"UpdateSubscriptionPlanIsUnlimitedTokens","methods":[{"name":"BuildTargetModel","line":20,"endLine":657,"signature":"(modelBuilder: ModelBuilder) -> void","purpose":"Rebuilds the EF Core model for the migration: adds annotations, DB extensions, defines entity mappings, relationships, indexes and seeds data (notably SubscriptionPlan entries).","calls":[],"actions":[{"id":"index_23","kind":"mapping","label":"Define indexes and unique constraints","line":23,"detail":"Multiple HasIndex(...) and .IsUnique() calls across entity configs (e.g. RoleNameIndex, UserNameIndex, SubscriptionPlan.PlanName unique) visible inline with entity definitions","visibility":"detail-only","confidence":0.7},{"id":"annotation_23","kind":"mapping","label":"Set model-level annotations","line":23,"detail":"modelBuilder.HasAnnotation(\"ProductVersion\", \"10.0.7\").HasAnnotation(\"Relational:MaxIdentifierLength\", 63)","visibility":"detail-only","confidence":0.7},{"id":"external-call_27","kind":"external-call","label":"Enable Postgres vector extension","line":27,"detail":"NpgsqlModelBuilderExtensions.HasPostgresExtension(modelBuilder, \"vector\")","visibility":"detail-only","confidence":0.7},{"id":"external-call_28","kind":"external-call","label":"Configure identity column behavior (Postgres)","line":28,"detail":"NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder)","visibility":"detail-only","confidence":0.7},{"id":"entity-configuration_30","kind":"mapping","label":"Define entity mappings for domain and identity entities","line":30,"detail":"Multiple modelBuilder.Entity(...) fluent configurations for Identity roles/users and domain entities (Ebook, KnowledgeUnit, KnowledgeUnitLink, NexusUser, QuizResult, SemanticKnowledgeCache, SubscriptionPlan, etc.) spanning lines 30..500+","visibility":"detail-only","confidence":0.7},{"id":"data-seed_501","kind":"mapping","label":"Seed SubscriptionPlan lookup rows","line":501,"detail":"b.HasData(...) seeds 4 SubscriptionPlan records (Free, Basic, Pro, Enterprise) including Enterprise with IsUnlimitedTokens = true and very large AITokenLimit","visibility":"detail-only","confidence":0.7},{"id":"relationship_540","kind":"mapping","label":"Configure relationships and foreign keys","line":540,"detail":"Multiple b.HasOne(...).WithMany(...).HasForeignKey(...).OnDelete(...) declarations configuring FK relations and navigation properties for Identity and domain entities (lines 540..630)","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"SubscriptionPlan","kind":"entity","line":467,"purpose":"Represents subscription tier metadata (token limits, pricing, stripe product id) and is seeded with default plans.","fields":[{"name":"Id","type":"int","required":true,"line":469,"description":"Primary key, identity"},{"name":"AITokenLimit","type":"int","required":true,"line":475,"description":"Token allotment for plan"},{"name":"IsUnlimitedTokens","type":"bool","required":true,"line":478,"description":"Flag to mark unlimited token plans"},{"name":"MonthlyPrice","type":"decimal","required":true,"line":481,"description":"Monthly price"},{"name":"PlanName","type":"string","required":true,"line":484,"description":"Human-readable plan name (unique)"},{"name":"StripeProductId","type":"string","required":true,"line":489,"description":"External Stripe product id"}]},{"name":"NexusUser","kind":"entity","line":287,"purpose":"Application user entity extended from Identity that includes AI token accounting and subscription association.","fields":[{"name":"Id","type":"string","required":true,"line":289,"description":"Identity primary key"},{"name":"AITokenLimit","type":"int","required":true,"line":292,"description":"User-specific AI token allotment (from plan/default)"},{"name":"AITokensUsed","type":"int","required":true,"line":295,"description":"Count of AI tokens consumed"},{"name":"SubscriptionPlanId","type":"int","required":true,"line":352,"description":"FK to SubscriptionPlan; default value 1"},{"name":"TenantId","type":"string","required":true,"line":356,"description":"Tenant identifier for multi-tenancy"},{"name":"LastAiActionDate","type":"DateTime?","required":false,"line":316,"description":"Timestamp of last AI activity"}]},{"name":"Ebook","kind":"entity","line":162,"purpose":"Represents an uploaded ebook linked to a NexusUser and tenant context.","fields":[{"name":"Id","type":"Guid","required":true,"line":164,"description":"Primary key"},{"name":"AddedDate","type":"DateTime","required":true,"line":168,"description":"When ebook was added"},{"name":"Author","type":"string","required":true,"line":171,"description":"Author name"},{"name":"FilePath","type":"string","required":true,"line":179,"description":"Stored file path"},{"name":"TenantId","type":"string","required":true,"line":186,"description":"Tenant id"},{"name":"UserId","type":"string","required":true,"line":196,"description":"Owner user id (FK)"}]},{"name":"KnowledgeUnit","kind":"entity","line":209,"purpose":"Semantic document/chunk with vector embedding and metadata used for retrieval and similarity search.","fields":[{"name":"Id","type":"string","required":true,"line":211,"description":"Entity id (max length 128)"},{"name":"Content","type":"string","required":true,"line":215,"description":"Text content"},{"name":"CreatedAt","type":"DateTime","required":true,"line":219,"description":"Creation timestamp"},{"name":"SourceId","type":"string","required":true,"line":225,"description":"Source identifier"},{"name":"TenantId","type":"string","required":true,"line":230,"description":"Tenant id"},{"name":"Vector","type":"Vector","required":false,"line":238,"description":"PgVector embedding (vector(768))"},{"name":"Version","type":"string","required":true,"line":241,"description":"Version of content/pipeline"}]},{"name":"KnowledgeUnitLink","kind":"entity","line":255,"purpose":"Represents directed relation between knowledge units (source -> target) with a relation type.","fields":[{"name":"Id","type":"int","required":true,"line":257,"description":"Primary key, identity"},{"name":"RelationType","type":"string","required":true,"line":263,"description":"Type/label of relation"},{"name":"SourceUnitId","type":"string","required":true,"line":268,"description":"FK to source KnowledgeUnit"},{"name":"TargetUnitId","type":"string","required":true,"line":273,"description":"FK to target KnowledgeUnit"}]},{"name":"SemanticKnowledgeCache","kind":"entity","line":422,"purpose":"Cache of semantic retrieval results with vector, original text and JSON data keyed by content hash.","fields":[{"name":"ContentHash","type":"string","required":true,"line":424,"description":"Primary key / unique hash"},{"name":"CreatedAt","type":"DateTime","required":true,"line":428,"description":"When cache entry was created"},{"name":"JsonData","type":"string","required":true,"line":431,"description":"Serialized cached results"},{"name":"ModelId","type":"string","required":true,"line":435,"description":"Model identifier used to generate vector"},{"name":"Vector","type":"Vector","required":false,"line":454,"description":"PgVector embedding (vector(1536))"}]},{"name":"QuizResult","kind":"entity","line":385,"purpose":"Stores results of quizzes taken by users (tenant-scoped).","fields":[{"name":"Id","type":"Guid","required":true,"line":387,"description":"Primary key"},{"name":"CompletedDate","type":"DateTime","required":true,"line":391,"description":"Completion timestamp"},{"name":"Score","type":"int","required":true,"line":394,"description":"Numeric score"},{"name":"TenantId","type":"string","required":true,"line":397,"description":"Tenant id"},{"name":"UserId","type":"string","required":true,"line":409,"description":"User FK"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Data/Persistence/AppDbContext.cs","NexusReader.Domain/Entities/SubscriptionPlan.cs","NexusReader.Domain/Entities/NexusUser.cs","NexusReader.Domain/Entities/Ebook.cs","NexusReader.Domain/Entities/KnowledgeUnit.cs","NexusReader.Domain/Entities/KnowledgeUnitLink.cs","NexusReader.Domain/Entities/SemanticKnowledgeCache.cs","NexusReader.Domain/Entities/QuizResult.cs"],"patterns":["EF Core Migration","Data Seeding","Fluent Model Configuration"],"domainConcepts":["SubscriptionPlan","NexusUser","AIToken accounting","KnowledgeUnit (vector embeddings)","SemanticKnowledgeCache"],"keyDetails":"This migration's designer seeds four SubscriptionPlan rows (Free, Basic, Pro, Enterprise) and marks Enterprise as IsUnlimitedTokens=true; it also configures Postgres vector extension and sets up entity mappings, FKs and indexes for domain and identity models.","orchestrationMethods":[{"name":"BuildTargetModel","line":20,"confidence":0.69,"reason":"Contains 2 architectural actions relevant to business execution.","actionKinds":["mapping","external-call"],"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"]}],"typedContracts":[{"name":"SubscriptionPlan","kind":"entity","line":467,"fieldCount":6,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"]},{"name":"NexusUser","kind":"entity","line":287,"fieldCount":6,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"]},{"name":"Ebook","kind":"entity","line":162,"fieldCount":6,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"]},{"name":"KnowledgeUnit","kind":"entity","line":209,"fieldCount":7,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"]},{"name":"KnowledgeUnitLink","kind":"entity","line":255,"fieldCount":4,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"]},{"name":"SemanticKnowledgeCache","kind":"entity","line":422,"fieldCount":5,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"]},{"name":"QuizResult","kind":"entity","line":385,"fieldCount":5,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"]}],"persistenceInteractions":[],"externalInteractions":[{"methodName":"BuildTargetModel","line":27,"kind":"external-call","detail":"NpgsqlModelBuilderExtensions.HasPostgresExtension(modelBuilder, \"vector\")","evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"]},{"methodName":"BuildTargetModel","line":28,"kind":"external-call","detail":"NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder)","evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"BuildTargetModel","line":20,"summary":"Contains 2 architectural actions relevant to business execution.","confidence":0.69,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"]},{"kind":"typed-contract","label":"SubscriptionPlan","line":467,"summary":"entity with 6 fields.","confidence":0.8,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"]},{"kind":"typed-contract","label":"NexusUser","line":287,"summary":"entity with 6 fields.","confidence":0.8,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"]},{"kind":"typed-contract","label":"Ebook","line":162,"summary":"entity with 6 fields.","confidence":0.8,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"]},{"kind":"typed-contract","label":"KnowledgeUnit","line":209,"summary":"entity with 7 fields.","confidence":0.8,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"]},{"kind":"external-call","label":"BuildTargetModel","line":27,"summary":"NpgsqlModelBuilderExtensions.HasPostgresExtension(modelBuilder, \"vector\")","confidence":0.8,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"]},{"kind":"external-call","label":"BuildTargetModel","line":28,"summary":"NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder)","confidence":0.8,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs.json
new file mode 100644
index 0000000..e0902f6
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs","purpose":"EF Core migration that adds an IsUnlimitedTokens boolean column to the SubscriptionPlans table and updates seed data for existing subscription plan rows; provides a Down migration to revert these schema and data changes.","classification":{"role":"database-config","layer":"data","confidence":0.9,"evidence":["DTO/view-model naming pattern","Namespace NexusReader.Data.Migrations and class inherits Migration","Calls migrationBuilder.AddColumn, UpdateData, DropColumn to change schema and seed data"]},"className":"UpdateSubscriptionPlanIsUnlimitedTokens","methods":[{"name":"Up","line":11,"endLine":47,"signature":"(migrationBuilder: MigrationBuilder) -> void","purpose":"Apply schema change by adding IsUnlimitedTokens column to SubscriptionPlans and update seed data for several subscription plan rows.","calls":[{"targetFile":"unknown","targetMethod":"AddColumn","callLine":13,"paramSummary":"adds boolean column 'IsUnlimitedTokens' to table 'SubscriptionPlans' with defaultValue: false"},{"targetFile":"unknown","targetMethod":"UpdateData","callLine":20,"paramSummary":"updates SubscriptionPlans row Id=1 setting AITokenLimit=5000, IsUnlimitedTokens=false, StripeProductId='prod_Free789'"},{"targetFile":"unknown","targetMethod":"UpdateData","callLine":27,"paramSummary":"updates SubscriptionPlans row Id=2 setting IsUnlimitedTokens=false"},{"targetFile":"unknown","targetMethod":"UpdateData","callLine":34,"paramSummary":"updates SubscriptionPlans row Id=3 setting IsUnlimitedTokens=false"},{"targetFile":"unknown","targetMethod":"UpdateData","callLine":41,"paramSummary":"updates SubscriptionPlans row Id=4 setting AITokenLimit=1000000000, IsUnlimitedTokens=true"}],"actions":[{"id":"schema-change_13","kind":"mapping","label":"Add column IsUnlimitedTokens","line":13,"detail":"migrationBuilder.AddColumn<bool>(name: 'IsUnlimitedTokens', table: 'SubscriptionPlans', type: 'boolean', nullable: false, defaultValue: false)","visibility":"detail-only","confidence":0.7},{"id":"data-update_20","kind":"mapping","label":"Seed update for plan Id=1","line":20,"detail":"UpdateData sets AITokenLimit, IsUnlimitedTokens, StripeProductId","visibility":"detail-only","confidence":0.7},{"id":"data-update_27","kind":"mapping","label":"Seed update for plan Id=2","line":27,"detail":"UpdateData sets IsUnlimitedTokens","visibility":"detail-only","confidence":0.7},{"id":"data-update_34","kind":"mapping","label":"Seed update for plan Id=3","line":34,"detail":"UpdateData sets IsUnlimitedTokens","visibility":"detail-only","confidence":0.7},{"id":"data-update_41","kind":"mapping","label":"Seed update for plan Id=4 (unlimited)","line":41,"detail":"UpdateData sets AITokenLimit to large value and IsUnlimitedTokens=true","visibility":"detail-only","confidence":0.7}]},{"name":"Down","line":50,"endLine":69,"signature":"(migrationBuilder: MigrationBuilder) -> void","purpose":"Revert the Up migration: drop the IsUnlimitedTokens column and restore previous seed values for specified subscription plan rows.","calls":[{"targetFile":"unknown","targetMethod":"DropColumn","callLine":52,"paramSummary":"drops column 'IsUnlimitedTokens' from table 'SubscriptionPlans'"},{"targetFile":"unknown","targetMethod":"UpdateData","callLine":56,"paramSummary":"updates SubscriptionPlans row Id=1 setting AITokenLimit=1000, StripeProductId=''"},{"targetFile":"unknown","targetMethod":"UpdateData","callLine":63,"paramSummary":"updates SubscriptionPlans row Id=4 setting AITokenLimit=500000"}],"actions":[{"id":"schema-change_52","kind":"mapping","label":"Drop column IsUnlimitedTokens","line":52,"detail":"migrationBuilder.DropColumn(name: 'IsUnlimitedTokens', table: 'SubscriptionPlans')","visibility":"detail-only","confidence":0.7},{"id":"data-update_56","kind":"mapping","label":"Restore seed for plan Id=1","line":56,"detail":"UpdateData restores AITokenLimit and StripeProductId","visibility":"detail-only","confidence":0.7},{"id":"data-update_63","kind":"mapping","label":"Restore seed for plan Id=4","line":63,"detail":"UpdateData restores AITokenLimit","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"UpdateSubscriptionPlanIsUnlimitedTokens","kind":"model","line":8,"purpose":"EF Core migration class that encapsulates schema changes and seed data updates to support an IsUnlimitedTokens flag on SubscriptionPlans.","fields":[]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["EF Core Migration","Data Seeding"],"domainConcepts":["SubscriptionPlan","AITokenLimit","IsUnlimitedTokens","StripeProductId"],"keyDetails":"Adds IsUnlimitedTokens boolean to SubscriptionPlans with default false; updates seed rows (Id 1..4) to set token limits and stripe product id; Down removes the column and restores previous seed values.","orchestrationMethods":[{"name":"Up","line":11,"confidence":0.85,"reason":"Coordinates 5 downstream calls with 0 architectural actions.","actionKinds":["mapping"],"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs","unknown","unknown","unknown","unknown","unknown"]},{"name":"Down","line":50,"confidence":0.69,"reason":"Coordinates 3 downstream calls with 0 architectural actions.","actionKinds":["mapping"],"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs","unknown","unknown","unknown"]}],"typedContracts":[{"name":"UpdateSubscriptionPlanIsUnlimitedTokens","kind":"model","line":8,"fieldCount":0,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"orchestration-method","label":"Up","line":11,"summary":"Coordinates 5 downstream calls with 0 architectural actions.","confidence":0.85,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs","unknown","unknown","unknown","unknown","unknown"]},{"kind":"orchestration-method","label":"Down","line":50,"summary":"Coordinates 3 downstream calls with 0 architectural actions.","confidence":0.69,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs","unknown","unknown","unknown"]},{"kind":"typed-contract","label":"UpdateSubscriptionPlanIsUnlimitedTokens","line":8,"summary":"model with 0 fields.","confidence":0.8,"evidencePaths":["NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510151022_NormalizeAuthor.Designer.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510151022_NormalizeAuthor.Designer.cs.json
new file mode 100644
index 0000000..ab8f35f
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510151022_NormalizeAuthor.Designer.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Migrations/20260510151022_NormalizeAuthor.Designer.cs","purpose":"EF Core migration designer file that describes the target EF model for the NormalizeAuthor migration (DB schema, relationships, indexes, and seed data).","classification":{"role":"database-config","layer":"data","confidence":0.9,"evidence":["[Migration(\"20260510151022_NormalizeAuthor\")] attribute present","Override of BuildTargetModel(ModelBuilder) that composes the EF Core model","HasData(...) is used to seed SubscriptionPlans and PostgreSQL vector extension configured"]},"className":"NormalizeAuthor","methods":[{"name":"BuildTargetModel","line":20,"endLine":688,"signature":"(modelBuilder: ModelBuilder) -> void","purpose":"Constructs the EF Core model metadata for the migration: entity schemas, columns, indexes, relationships, navigation properties, provider-specific config and seed data.","calls":[],"actions":[{"id":"annotation_23","kind":"mapping","label":"Adds product/version and identifier length annotations","line":23,"detail":"modelBuilder.HasAnnotation(\"ProductVersion\", \"10.0.7\").HasAnnotation(\"Relational:MaxIdentifierLength\", 63)","visibility":"detail-only","confidence":0.7},{"id":"enable-extension_27","kind":"mapping","label":"Enables Postgres vector extension","line":27,"detail":"NpgsqlModelBuilderExtensions.HasPostgresExtension(modelBuilder, \"vector\")","visibility":"detail-only","confidence":0.7},{"id":"provider-config_28","kind":"mapping","label":"Sets identity/serial column strategy for Postgres","line":28,"detail":"NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder)","visibility":"detail-only","confidence":0.7},{"id":"define-entity_30","kind":"mapping","label":"Defines AspNet Identity tables (Role, RoleClaim, UserClaim, UserLogin, UserRole, UserToken)","line":30,"detail":"Multiple modelBuilder.Entity(...) blocks define identity tables, keys, indexes and columns","visibility":"detail-only","confidence":0.7},{"id":"index_47","kind":"mapping","label":"Creates indexes and unique constraints","line":47,"detail":"Multiple HasIndex(...).IsUnique() or HasDatabaseName(...) calls across entities (example: RoleNameIndex, UserNameIndex, EmailIndex, indices on TenantId, UserId, etc.)","visibility":"detail-only","confidence":0.7},{"id":"define-entity_162","kind":"mapping","label":"Defines Author entity (Id, Name)","line":162,"detail":"Author has integer Id (identity) and required Name with max length 255; mapped to Authors table","visibility":"detail-only","confidence":0.7},{"id":"define-entity_180","kind":"mapping","label":"Defines Ebook entity with indexes and foreign keys","line":180,"detail":"Ebook has Guid Id, AuthorId, UserId, TenantId, Title, FilePath and indexes on AuthorId, TenantId, UserId","visibility":"detail-only","confidence":0.7},{"id":"define-entity_227","kind":"mapping","label":"Defines KnowledgeUnit with vector column","line":227,"detail":"KnowledgeUnit has Id, Content, CreatedAt, Vector (vector(768)), Version and indexes on SourceId and TenantId","visibility":"detail-only","confidence":0.7},{"id":"define-entity_273","kind":"mapping","label":"Defines KnowledgeUnitLink entity and indices","line":273,"detail":"Link entity with SourceUnitId/TargetUnitId relations and indices","visibility":"detail-only","confidence":0.7},{"id":"define-entity_305","kind":"mapping","label":"Defines NexusUser (AspNetUsers) with subscription FK","line":305,"detail":"NexusUser includes SubscriptionPlanId (default 1), TenantId and multiple identity fields and indexes","visibility":"detail-only","confidence":0.7},{"id":"define-entity_403","kind":"mapping","label":"Defines QuizResult and SemanticKnowledgeCache entities","line":403,"detail":"QuizResult mapped to QuizResults; SemanticKnowledgeCache mapped with unique ContentHash and vector(1536)","visibility":"detail-only","confidence":0.7},{"id":"define-entity_485","kind":"mapping","label":"Defines SubscriptionPlan entity and seeds default plans","line":485,"detail":"SubscriptionPlans table schema declared and HasData(...) inserts Free, Basic, Pro, Enterprise rows","visibility":"detail-only","confidence":0.7},{"id":"data-seed_519","kind":"mapping","label":"Seeds SubscriptionPlan rows","line":519,"detail":"b.HasData(new { Id = 1, ...}, new { Id = 2, ...}, new { Id = 3, ...}, new { Id = 4, ... }) — inserts 4 plans with token limits and StripeProductId placeholders","visibility":"detail-only","confidence":0.7},{"id":"relationship_558","kind":"mapping","label":"Configures FK constraints and navigation properties","line":558,"detail":"HasOne/WithMany config for role claims, user claims, logins, roles, tokens, Ebook->Author/User, KnowledgeUnitLink->Source/Target, NexusUser->SubscriptionPlan, QuizResult->User","visibility":"detail-only","confidence":0.7},{"id":"navigation-setup_669","kind":"mapping","label":"Configures navigations for entity collections","line":669,"detail":"Calls to b.Navigation(...) for Ebooks, IncomingLinks, OutgoingLinks, QuizResults, etc.","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"NormalizeAuthor","kind":"model","line":17,"purpose":"Partial migration class that contains the EF Core target model builder for the NormalizeAuthor migration.","fields":[]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Data/Persistence/AppDbContext.cs","NexusReader.Domain/Entities/*"],"patterns":["EF Core Migration","Data Seeding","Relational Mapping"],"domainConcepts":["Author","Ebook","KnowledgeUnit","KnowledgeUnitLink","NexusUser","QuizResult","SemanticKnowledgeCache","SubscriptionPlan","AspNet Identity (roles/users/claims)"],"keyDetails":"This designer migration configures PostgreSQL vector extension and vector columns (768/1536), sets Postgres identity behavior, defines schema for domain entities and identity tables, and seeds four SubscriptionPlan rows (Free, Basic, Pro, Enterprise).","orchestrationMethods":[],"typedContracts":[{"name":"NormalizeAuthor","kind":"model","line":17,"fieldCount":0,"evidencePaths":["NexusReader.Data/Migrations/20260510151022_NormalizeAuthor.Designer.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"NormalizeAuthor","line":17,"summary":"model with 0 fields.","confidence":0.8,"evidencePaths":["NexusReader.Data/Migrations/20260510151022_NormalizeAuthor.Designer.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510151022_NormalizeAuthor.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510151022_NormalizeAuthor.cs.json
new file mode 100644
index 0000000..7e39eb1
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510151022_NormalizeAuthor.cs.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510161155_AddEbookProgressAndChapter.Designer.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510161155_AddEbookProgressAndChapter.Designer.cs.json
new file mode 100644
index 0000000..ae300f2
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510161155_AddEbookProgressAndChapter.Designer.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.Designer.cs","purpose":"EF Core auto-generated migration designer that builds the target EF Core model for the migration AddEbookProgressAndChapter; defines tables, columns, indexes, relationships, extension usage and seed data required by this migration.","classification":{"role":"database-config","layer":"data","confidence":0.85,"evidence":["[DbContext(typeof(AppDbContext))] attribute at line 15","[Migration(\"20260510161155_AddEbookProgressAndChapter\")] attribute at line 16","Method BuildTargetModel(ModelBuilder) at line 20 configures modelBuilder entities and relationships"]},"className":"AddEbookProgressAndChapter","methods":[{"name":"BuildTargetModel","line":20,"endLine":695,"signature":"(modelBuilder: ModelBuilder) -> void (override)","purpose":"Constructs the EF Core model for this migration: annotations, extensions, entity mappings, keys, indexes, relationships and seed 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510161155_AddEbookProgressAndChapter.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510161155_AddEbookProgressAndChapter.cs.json
new file mode 100644
index 0000000..264c691
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510161155_AddEbookProgressAndChapter.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.cs","purpose":"EF Core migration that modifies the Ebooks table to add a nullable LastChapter column and a non-null Progress column with default 0.0; provides Up and Down schema change paths.","classification":{"role":"database-config","layer":"data","confidence":0.9,"evidence":["Class inherits Microsoft.EntityFrameworkCore.Migrations.Migration","Defines Up and Down methods that add/drop columns on the Ebooks table","Located under NexusReader.Data.Migrations namespace"]},"className":"AddEbookProgressAndChapter","methods":[{"name":"Up","line":11,"endLine":26,"signature":"(migrationBuilder: MigrationBuilder) -> void","purpose":"Applies schema changes: adds LastChapter (string, nullable, maxLength 255) and Progress (double, non-null, default 0.0) columns to the Ebooks table.","calls":[],"actions":[{"id":"schema-change_13","kind":"mapping","label":"Add LastChapter column","line":13,"detail":"migrationBuilder.AddColumn<string>(name: \"LastChapter\", table: \"Ebooks\", type: \"character varying(255)\", maxLength: 255, nullable: true)","visibility":"detail-only","confidence":0.7},{"id":"schema-change_20","kind":"mapping","label":"Add Progress column","line":20,"detail":"migrationBuilder.AddColumn<double>(name: \"Progress\", table: \"Ebooks\", type: \"double precision\", nullable: false, defaultValue: 0.0)","visibility":"detail-only","confidence":0.7},{"id":"return_26","kind":"return","label":"Complete migration Up","line":26,"detail":"Method exits after applying AddColumn calls","visibility":"detail-only","confidence":0.7}]},{"name":"Down","line":29,"endLine":38,"signature":"(migrationBuilder: MigrationBuilder) -> void","purpose":"Reverts the Up migration: drops LastChapter and Progress columns from the Ebooks table.","calls":[],"actions":[{"id":"schema-change_31","kind":"mapping","label":"Drop LastChapter column","line":31,"detail":"migrationBuilder.DropColumn(name: \"LastChapter\", table: \"Ebooks\")","visibility":"detail-only","confidence":0.7},{"id":"schema-change_35","kind":"mapping","label":"Drop Progress column","line":35,"detail":"migrationBuilder.DropColumn(name: \"Progress\", table: \"Ebooks\")","visibility":"detail-only","confidence":0.7},{"id":"return_38","kind":"return","label":"Complete migration Down","line":38,"detail":"Method exits after DropColumn calls","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"AddEbookProgressAndChapter","kind":"model","line":8,"purpose":"Represents an EF Core migration that alters the Ebooks table to track last-read chapter and reading progress.","fields":[]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["EF Core Migration","Database Migration"],"domainConcepts":["Ebook","Chapter","Progress"],"keyDetails":"Adds LastChapter (varchar(255), nullable) and Progress (double, not nullable, default 0.0) to Ebooks; provides Down to remove them.","orchestrationMethods":[],"typedContracts":[{"name":"AddEbookProgressAndChapter","kind":"model","line":8,"fieldCount":0,"evidencePaths":["NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"AddEbookProgressAndChapter","line":8,"summary":"model with 0 fields.","confidence":0.8,"evidencePaths":["NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510171941_AddEbookLastChapterIndex.Designer.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510171941_AddEbookLastChapterIndex.Designer.cs.json
new file mode 100644
index 0000000..eaef1de
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510171941_AddEbookLastChapterIndex.Designer.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Migrations/20260510171941_AddEbookLastChapterIndex.Designer.cs","purpose":"EF Core migration designer for the AddEbookLastChapterIndex migration; declares the target EF model (entities, properties, indexes, relations, and seed data) used to generate the database schema for this migration.","classification":{"role":"database-config","layer":"data","confidence":0.9,"evidence":["Class annotated with [DbContext(typeof(AppDbContext))] and [Migration(...)] (lines 15-16)","Contains BuildTargetModel(ModelBuilder) that declares entities, relationships and seed data (line 20+)"]},"className":"AddEbookLastChapterIndex","methods":[{"name":"BuildTargetModel","line":20,"endLine":698,"signature":"(modelBuilder: ModelBuilder) -> void","purpose":"Constructs the EF Core model for the AddEbookLastChapterIndex migration: annotations, postgres extensions, entity mappings, indices, relationships and seed 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510171941_AddEbookLastChapterIndex.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510171941_AddEbookLastChapterIndex.cs.json
new file mode 100644
index 0000000..aa49285
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__20260510171941_AddEbookLastChapterIndex.cs.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Migrations__AppDbContextModelSnapshot.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__AppDbContextModelSnapshot.cs.json
new file mode 100644
index 0000000..02d98ba
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Migrations__AppDbContextModelSnapshot.cs.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__NexusReader.Data.csproj.json b/src/.documentation/cache/summaries/NexusReader.Data__NexusReader.Data.csproj.json
new file mode 100644
index 0000000..06bc5ba
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__NexusReader.Data.csproj.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/NexusReader.Data.csproj","purpose":"Defines the Data project build configuration and NuGet/Project dependencies for the NexusReader data layer (Entity Framework Core persistence, DB providers, and vector support).","classification":{"role":"database-config","layer":"data","confidence":0.9,"evidence":["References EF Core and provider packages (Microsoft.EntityFrameworkCore, Sqlite, Npgsql) at lines 11-13","Includes Pgvector.EntityFrameworkCore for vector storage at line 21","ProjectReference to NexusReader.Domain indicates this is the persistence/data implementation at line 25"]},"className":"","methods":[],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["Package: Microsoft.AspNetCore.Identity.EntityFrameworkCore (line 10)","Package: Microsoft.EntityFrameworkCore (line 11)","Package: Microsoft.EntityFrameworkCore.Sqlite (line 12)","Package: Npgsql.EntityFrameworkCore.PostgreSQL (line 13)","Package: Microsoft.Extensions.Configuration.FileExtensions (line 14)","Package: Microsoft.Extensions.Configuration.Json (line 15)","Package: Microsoft.Extensions.Configuration.EnvironmentVariables (line 16)","Package: Microsoft.EntityFrameworkCore.Design (line 17)","Package: Pgvector.EntityFrameworkCore (line 21)","Project: ../NexusReader.Domain/NexusReader.Domain.csproj (line 25)"],"patterns":["EF Core (ORM)","Repository/Repository-like data layer","Provider-based DB configuration (SQLite, PostgreSQL)"],"domainConcepts":["Persistence","Database providers (SQLite, PostgreSQL)","Vector embeddings storage (pgvector)","Configuration (JSON/env file support)"],"keyDetails":"TargetFramework net10.0, Nullable enabled, ImplicitUsings enabled. EF Core design package included with PrivateAssets=all (dev-time tooling). Supports SQLite and Postgres providers and Pgvector for vector data; references Domain project for domain types.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Persistence__AppDbContext.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__AppDbContext.cs.json
new file mode 100644
index 0000000..d929743
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__AppDbContext.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Persistence/AppDbContext.cs","purpose":"EF Core DbContext for NexusReader that configures entity mappings, indexes, relationships, Postgres-specific vector settings, and seeds deterministic subscription plans used by the application.","classification":{"role":"database-config","layer":"data","confidence":0.9,"evidence":["Class inherits IdentityDbContext<NexusUser> (line 7)","Defines DbSet<T> properties for domain entities (lines 20-26)","Overrides OnModelCreating to configure entities, indexes, relations and seed data (lines 28-128)"]},"className":"AppDbContext","methods":[{"name":"AppDbContext","line":9,"endLine":11,"signature":"(options: DbContextOptions<AppDbContext>) -> AppDbContext","purpose":"Constructor that forwards DbContextOptions to the base IdentityDbContext.","calls":[],"actions":[{"id":"constructor_9","kind":"mapping","label":"Passes options to base 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Persistence__AppDbContextFactory.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__AppDbContextFactory.cs.json
new file mode 100644
index 0000000..a22c2f1
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__AppDbContextFactory.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Persistence/AppDbContextFactory.cs","purpose":"Design-time factory that constructs AppDbContext for EF Core tooling by locating configuration (preferably from the Web project) and configuring a Postgres connection with pgvector support.","classification":{"role":"bootstrap","layer":"data","confidence":0.75,"evidence":["Implements IDesignTimeDbContextFactory<AppDbContext> (line 8) — used by EF tooling at design time","Builds Configuration from a Web project appsettings files and environment variables (lines 25-30)","Constructs DbContextOptions and returns new AppDbContext (lines 32-44)"]},"className":"AppDbContextFactory","methods":[{"name":"CreateDbContext","line":10,"endLine":44,"signature":"(args: string[]) -> AppDbContext","purpose":"Creates and configures an AppDbContext for design-time operations: locates solution/web project, loads configuration, determines connection string (with a default fallback), enables pgvector, and returns the 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Persistence__DbInitializer.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__DbInitializer.cs.json
new file mode 100644
index 0000000..91b41d0
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__DbInitializer.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Persistence/DbInitializer.cs","purpose":"Provides a one-time database seeding utility that creates default subscription plans, roles, an admin user, and sample domain data (author, ebook) when invoked (typically at app startup).","classification":{"role":"startup","layer":"data","confidence":0.9,"evidence":["Static DbInitializer class with SeedAsync(IServiceProvider) used to populate DB","Uses IServiceProvider.CreateScope and AppDbContext/IDbContextFactory to write initial data"]},"className":"DbInitializer","methods":[{"name":"SeedAsync","line":14,"endLine":118,"signature":"(serviceProvider: IServiceProvider) -> Task","purpose":"Creates required seed data (subscription plans, roles, admin user, sample author and ebook) in the database in an idempotent manner.","calls":[{"targetFile":"unknown","targetMethod":"CreateScope","callLine":16,"paramSummary":"no args; creates DI scope from 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513181743_AddEbookReadyFlag.Designer.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513181743_AddEbookReadyFlag.Designer.cs.json
new file mode 100644
index 0000000..a03556f
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513181743_AddEbookReadyFlag.Designer.cs.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513181743_AddEbookReadyFlag.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513181743_AddEbookReadyFlag.cs.json
new file mode 100644
index 0000000..5161be3
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513181743_AddEbookReadyFlag.cs.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513183726_FixKnowledgeUnitEbookId.Designer.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513183726_FixKnowledgeUnitEbookId.Designer.cs.json
new file mode 100644
index 0000000..ffb31e8
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513183726_FixKnowledgeUnitEbookId.Designer.cs.json
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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513183726_FixKnowledgeUnitEbookId.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513183726_FixKnowledgeUnitEbookId.cs.json
new file mode 100644
index 0000000..57d9bc0
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513183726_FixKnowledgeUnitEbookId.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Persistence/Migrations/20260513183726_FixKnowledgeUnitEbookId.cs","purpose":"EF Core migration that replaces a string SourceId on KnowledgeUnits with a Guid EbookId, adds an index and foreign key to Ebooks (cascade delete); provides Up and Down schema transitions.","classification":{"role":"database-config","layer":"data","confidence":0.9,"evidence":["Class derives from Migration (line 9)","Uses MigrationBuilder to alter KnowledgeUnits table: AddColumn, DropColumn, CreateIndex, AddForeignKey (lines 14-40, 46-69)"]},"className":"FixKnowledgeUnitEbookId","methods":[{"name":"Up","line":12,"endLine":41,"signature":"(migrationBuilder: MigrationBuilder) -> void","purpose":"Apply schema changes: remove SourceId (string) and its index from KnowledgeUnits, add non-nullable EbookId (Guid) with default Guid.Zero, create index on EbookId and add FK to Ebooks.Id with cascade delete.","calls":[],"actions":[{"id":"drop-index_14","kind":"mapping","label":"Drop IX_KnowledgeUnits_SourceId index","line":14,"detail":"migrationBuilder.DropIndex(name: \"IX_KnowledgeUnits_SourceId\", table: \"KnowledgeUnits\")","visibility":"detail-only","confidence":0.7},{"id":"drop-column_18","kind":"mapping","label":"Drop SourceId column","line":18,"detail":"migrationBuilder.DropColumn(name: \"SourceId\", table: \"KnowledgeUnits\")","visibility":"detail-only","confidence":0.7},{"id":"add-column_22","kind":"mapping","label":"Add EbookId column (Guid, non-nullable, default Guid.Empty)","line":22,"detail":"migrationBuilder.AddColumn<Guid>(name: \"EbookId\", table: \"KnowledgeUnits\", type: \"uuid\", nullable: false, defaultValue: Guid.Empty)","visibility":"detail-only","confidence":0.7},{"id":"create-index_29","kind":"mapping","label":"Create IX_KnowledgeUnits_EbookId index","line":29,"detail":"migrationBuilder.CreateIndex(name: \"IX_KnowledgeUnits_EbookId\", table: \"KnowledgeUnits\", column: \"EbookId\")","visibility":"detail-only","confidence":0.7},{"id":"add-foreign-key_34","kind":"mapping","label":"Add FK from KnowledgeUnits.EbookId -> Ebooks.Id with cascade delete","line":34,"detail":"migrationBuilder.AddForeignKey(name: \"FK_KnowledgeUnits_Ebooks_EbookId\", table: \"KnowledgeUnits\", column: \"EbookId\", principalTable: \"Ebooks\", principalColumn: \"Id\", onDelete: ReferentialAction.Cascade)","visibility":"detail-only","confidence":0.7}]},{"name":"Down","line":44,"endLine":70,"signature":"(migrationBuilder: MigrationBuilder) -> void","purpose":"Revert schema changes: remove foreign key, index and EbookId column; re-add SourceId (string) with max length 128 and its index.","calls":[],"actions":[{"id":"drop-foreign-key_46","kind":"mapping","label":"Drop FK_KnowledgeUnits_Ebooks_EbookId","line":46,"detail":"migrationBuilder.DropForeignKey(name: \"FK_KnowledgeUnits_Ebooks_EbookId\", table: \"KnowledgeUnits\")","visibility":"detail-only","confidence":0.7},{"id":"drop-index_50","kind":"mapping","label":"Drop IX_KnowledgeUnits_EbookId index","line":50,"detail":"migrationBuilder.DropIndex(name: \"IX_KnowledgeUnits_EbookId\", table: \"KnowledgeUnits\")","visibility":"detail-only","confidence":0.7},{"id":"drop-column_54","kind":"mapping","label":"Drop EbookId column","line":54,"detail":"migrationBuilder.DropColumn(name: \"EbookId\", table: \"KnowledgeUnits\")","visibility":"detail-only","confidence":0.7},{"id":"add-column_58","kind":"mapping","label":"Re-add SourceId column (string, maxLength 128, non-nullable, default \"\")","line":58,"detail":"migrationBuilder.AddColumn<string>(name: \"SourceId\", table: \"KnowledgeUnits\", type: \"character varying(128)\", maxLength: 128, nullable: false, defaultValue: \"\")","visibility":"detail-only","confidence":0.7},{"id":"create-index_66","kind":"mapping","label":"Re-create IX_KnowledgeUnits_SourceId index","line":66,"detail":"migrationBuilder.CreateIndex(name: \"IX_KnowledgeUnits_SourceId\", table: \"KnowledgeUnits\", column: \"SourceId\")","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"FixKnowledgeUnitEbookId","kind":"model","line":9,"purpose":"EF Core Migration class that applies/reverts the KnowledgeUnits EbookId/SourceId schema changes.","fields":[]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["EF Core Migration"],"domainConcepts":["KnowledgeUnit","Ebook"],"keyDetails":"Up adds non-nullable EbookId Guid with default Guid.Empty and cascade delete FK to Ebooks.Id; Down restores SourceId as non-nullable string(128).","orchestrationMethods":[],"typedContracts":[{"name":"FixKnowledgeUnitEbookId","kind":"model","line":9,"fieldCount":0,"evidencePaths":["NexusReader.Data/Persistence/Migrations/20260513183726_FixKnowledgeUnitEbookId.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"FixKnowledgeUnitEbookId","line":9,"summary":"model with 0 fields.","confidence":0.8,"evidencePaths":["NexusReader.Data/Persistence/Migrations/20260513183726_FixKnowledgeUnitEbookId.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513185108_MakeKnowledgeUnitEbookIdNullable.Designer.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513185108_MakeKnowledgeUnitEbookIdNullable.Designer.cs.json
new file mode 100644
index 0000000..d9bddec
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513185108_MakeKnowledgeUnitEbookIdNullable.Designer.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Persistence/Migrations/20260513185108_MakeKnowledgeUnitEbookIdNullable.Designer.cs","purpose":"EF Core migration designer partial class that reconstructs the target EF model used by the migration 20260513185108_MakeKnowledgeUnitEbookIdNullable; it declares entity schemas, relationships, indices and seed data for the application's database model.","classification":{"role":"database-config","layer":"data","confidence":0.8,"evidence":["Class has [DbContext(typeof(AppDbContext))] and [Migration(...)] attributes","Overrides BuildTargetModel(ModelBuilder) to configure entity mappings, relationships and seed data"]},"className":"MakeKnowledgeUnitEbookIdNullable","methods":[{"name":"BuildTargetModel","line":20,"endLine":709,"signature":"(modelBuilder: ModelBuilder) -> void","purpose":"Rebuilds the EF Core model for the migration: sets annotations, registers Postgres extensions, configures all entity types (properties, keys, indices), relationships, navigations and seed data.","calls":[],"actions":[{"id":"annotation_23","kind":"mapping","label":"Sets model annotations","line":23,"detail":"modelBuilder.HasAnnotation(\"ProductVersion\", \"10.0.7\").HasAnnotation(\"Relational:MaxIdentifierLength\", 63)","visibility":"detail-only","confidence":0.7},{"id":"extension-register_27","kind":"mapping","label":"Registers Postgres extension 'vector'","line":27,"detail":"NpgsqlModelBuilderExtensions.HasPostgresExtension(modelBuilder, \"vector\")","visibility":"detail-only","confidence":0.7},{"id":"identity-config_28","kind":"mapping","label":"Configures Identity/ID generation defaults","line":28,"detail":"NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder) and multiple NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn calls for integer Ids","visibility":"detail-only","confidence":0.7},{"id":"entity-configuration_30","kind":"mapping","label":"Configures Microsoft.AspNetCore.Identity.IdentityRole entity","line":30,"detail":"Defines Id, ConcurrencyStamp, Name, NormalizedName, PK, unique index on NormalizedName and maps to AspNetRoles table","visibility":"detail-only","confidence":0.7},{"id":"index_49","kind":"mapping","label":"Defines indices for multiple entities","line":49,"detail":"Examples: Role.NormalizedName unique (RoleNameIndex) line 49-51, Ebook indices AuthorId/TenantId/UserId lines 231-235, KnowledgeUnit indices EbookId/TenantId lines 277-279","visibility":"detail-only","confidence":0.7},{"id":"entity-configuration_56","kind":"mapping","label":"Configures Identity role/claim/login/user-role/user-token entities","line":56,"detail":"Multiple Identity-related entity configs with properties, keys, indices and table mappings (lines ~56-160)","visibility":"detail-only","confidence":0.7},{"id":"entity-configuration_162","kind":"mapping","label":"Configures domain entity Author","line":162,"detail":"Author.Id (int, identity), Name required string(255), PK and table Authors","visibility":"detail-only","confidence":0.7},{"id":"entity-configuration_180","kind":"mapping","label":"Configures domain entity Ebook","line":180,"detail":"Ebook.Id (Guid), AddedDate, AuthorId, FilePath, TenantId, Title, UserId, indices on AuthorId/TenantId/UserId and table Ebooks","visibility":"detail-only","confidence":0.7},{"id":"entity-configuration_240","kind":"mapping","label":"Configures domain entity KnowledgeUnit","line":240,"detail":"KnowledgeUnit.Id (string), Content required, CreatedAt, EbookId (Guid? — nullable), Vector, Version, indices on EbookId and TenantId; maps to KnowledgeUnits","visibility":"detail-only","confidence":0.7},{"id":"schema-change-evidence_253","kind":"mapping","label":"EbookId nullable configuration","line":253,"detail":"KnowledgeUnit property EbookId is declared as Guid? 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513185108_MakeKnowledgeUnitEbookIdNullable.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513185108_MakeKnowledgeUnitEbookIdNullable.cs.json
new file mode 100644
index 0000000..9097b80
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260513185108_MakeKnowledgeUnitEbookIdNullable.cs.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260514184243_AddDescriptionToEbook.Designer.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260514184243_AddDescriptionToEbook.Designer.cs.json
new file mode 100644
index 0000000..43aa548
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260514184243_AddDescriptionToEbook.Designer.cs.json
@@ -0,0 +1 @@
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vector stored as vector(1536)"},{"name":"TenantId","type":"string","required":true,"line":481,"description":"Tenant scoping id"}]},{"name":"NexusReader.Domain.Entities.SubscriptionPlan","kind":"entity","line":499,"purpose":"Subscription plan table with token limits and pricing; seeded with default plans in the migration.","fields":[{"name":"Id","type":"int","required":true,"line":501,"description":"Primary key, identity"},{"name":"AITokenLimit","type":"int","required":true,"line":507,"description":"Token allowance for plan"},{"name":"IsUnlimitedTokens","type":"bool","required":true,"line":510,"description":"Flag indicating unlimited tokens"},{"name":"MonthlyPrice","type":"decimal","required":true,"line":513,"description":"Monthly price"},{"name":"PlanName","type":"string","required":true,"line":516,"description":"Plan name (unique)"},{"name":"StripeProductId","type":"string","required":true,"line":521,"description":"External Stripe product id"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Data.Persistence/AppDbContext.cs","NexusReader.Domain/Entities/*.cs"],"patterns":["EF Core Migration","Entity-Relationship Mapping","Data Seeding"],"domainConcepts":["Ebook","Author","KnowledgeUnit","KnowledgeUnitLink","NexusUser","SubscriptionPlan","SemanticKnowledgeCache","QuizResult"],"keyDetails":"Auto-generated EF Core migration designer for migration id '20260514184243_AddDescriptionToEbook'. 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diff --git a/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260514184243_AddDescriptionToEbook.cs.json b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260514184243_AddDescriptionToEbook.cs.json
new file mode 100644
index 0000000..de5d4cf
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Data__Persistence__Migrations__20260514184243_AddDescriptionToEbook.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.cs","purpose":"EF Core migration that adds a nullable text Description column to the Ebooks table and provides a down migration to remove it.","classification":{"role":"database-config","layer":"data","confidence":0.8,"evidence":["Class inherits Microsoft.EntityFrameworkCore.Migrations.Migration","Namespace NexusReader.Data.Persistence.Migrations","Defines Up and Down methods that alter the database schema (AddColumn/DropColumn)"]},"className":"AddDescriptionToEbook","methods":[{"name":"Up","line":11,"endLine":18,"signature":"(migrationBuilder: MigrationBuilder) -> void","purpose":"Apply the migration by adding a nullable text 'Description' column to the 'Ebooks' table.","calls":[],"actions":[{"id":"schema-change_13","kind":"mapping","label":"AddColumn Description on Ebooks","line":13,"detail":"migrationBuilder.AddColumn<string>(name: \"Description\", table: \"Ebooks\", type: \"text\", nullable: true)","visibility":"detail-only","confidence":0.7}]},{"name":"Down","line":21,"endLine":26,"signature":"(migrationBuilder: MigrationBuilder) -> void","purpose":"Revert the migration by dropping the 'Description' column from the 'Ebooks' table.","calls":[],"actions":[{"id":"schema-change_23","kind":"mapping","label":"DropColumn Description from Ebooks","line":23,"detail":"migrationBuilder.DropColumn(name: \"Description\", table: \"Ebooks\")","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"AddDescriptionToEbook","kind":"model","line":8,"purpose":"Represents an EF Core migration that adds/removes the Description column on the Ebooks table.","fields":[]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["EF Core Migration"],"domainConcepts":["Ebook","Ebooks table","Description column"],"keyDetails":"This migration adds a nullable text column 'Description' to the 'Ebooks' table (Up) and removes it on rollback (Down).","orchestrationMethods":[],"typedContracts":[{"name":"AddDescriptionToEbook","kind":"model","line":8,"fieldCount":0,"evidencePaths":["NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"AddDescriptionToEbook","line":8,"summary":"model with 0 fields.","confidence":0.8,"evidencePaths":["NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Domain__Entities__Author.cs.json b/src/.documentation/cache/summaries/NexusReader.Domain__Entities__Author.cs.json
new file mode 100644
index 0000000..52e2067
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Domain__Entities__Author.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Domain/Entities/Author.cs","purpose":"Domain entity representing an Author in the NexusReader domain model; declares identity, display name and a navigation collection of related Ebook entities for ORM mapping.","classification":{"role":"entity","layer":"domain","confidence":0.95,"evidence":["Domain/entity pattern","Domain path heuristic","Namespace NexusReader.Domain.Entities","Class Author with data-annotation attributes [Key], [Required], [MaxLength] and a virtual navigation ICollection<Ebook>"]},"className":"Author","methods":[],"types":[{"name":"Author","kind":"entity","line":5,"purpose":"Represents an author record with identity, name and related ebooks for persistence via an ORM (EF Core).","fields":[{"name":"Id","type":"int","required":true,"line":8,"description":"Primary key; annotated with [Key]"},{"name":"Name","type":"string","required":true,"line":12,"description":"Author display name; annotated with [Required] and [MaxLength(255)], initialized to empty string"},{"name":"Ebooks","type":"ICollection<Ebook>","required":true,"line":14,"description":"Virtual navigation collection of related Ebook entities; initialized to new List<Ebook>() (ORM relationship)"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Domain/Entities/Ebook.cs"],"patterns":["Entity","ORM (EF Core) navigation property"],"domainConcepts":["Author","Ebook"],"keyDetails":"Uses System.ComponentModel.DataAnnotations for schema constraints; navigation property is virtual and initialized, indicating intended EF Core usage (lazy/proxy or relationship mapping).","orchestrationMethods":[],"typedContracts":[{"name":"Author","kind":"entity","line":5,"fieldCount":3,"evidencePaths":["NexusReader.Domain/Entities/Author.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"Author","line":5,"summary":"entity with 3 fields.","confidence":0.8,"evidencePaths":["NexusReader.Domain/Entities/Author.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Domain__Entities__Ebook.cs.json b/src/.documentation/cache/summaries/NexusReader.Domain__Entities__Ebook.cs.json
new file mode 100644
index 0000000..05d43d4
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Domain__Entities__Ebook.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Domain/Entities/Ebook.cs","purpose":"Defines the domain entity Ebook with storage/ORM mapping, metadata, navigation properties (Author, NexusUser), and fields used for reading/progress and AI ingestion readiness.","classification":{"role":"entity","layer":"domain","confidence":0.9,"evidence":["Domain/entity pattern","Domain path heuristic","namespace NexusReader.Domain.Entities; (line 4)","Entity class Ebook with data annotations like [Key], [Required], [ForeignKey] (lines 11, 14, 21, 24, 29, 53, 56)","Contains domain properties and navigation properties Author and NexusUser (lines 21-22, 56-57)"]},"className":"Ebook","methods":[],"types":[{"name":"Ebook","kind":"entity","line":9,"purpose":"Represents an e-book owned/uploaded by a user including metadata, storage info, reading progress and AI ingestion state.","fields":[{"name":"Id","type":"Guid","required":true,"line":11,"description":"Primary key; initialized to a new Guid"},{"name":"Title","type":"string","required":true,"line":14,"description":"Book title; max length 255"},{"name":"AuthorId","type":"int","required":true,"line":18,"description":"Foreign key to Author"},{"name":"Author","type":"Author (navigation)","required":true,"line":21,"description":"Navigation property to Author (ForeignKey(nameof(AuthorId)))"},{"name":"FilePath","type":"string","required":true,"line":24,"description":"Path to stored ebook file"},{"name":"CoverUrl","type":"string?","required":false,"line":27,"description":"Optional cover image URL"},{"name":"TenantId","type":"string","required":true,"line":29,"description":"Tenant identifier (multi-tenant); max length 128; defaults to \"global\""},{"name":"AddedDate","type":"DateTime","required":true,"line":33,"description":"Creation/added timestamp; defaults to DateTime.UtcNow"},{"name":"LastReadDate","type":"DateTime?","required":false,"line":35,"description":"Nullable timestamp for last time read"},{"name":"Progress","type":"double","required":true,"line":37,"description":"Reading progress percentage (0..100); defaults to 0"},{"name":"LastChapter","type":"string?","required":false,"line":39,"description":"Optional last chapter title; max length 255"},{"name":"LastChapterIndex","type":"int","required":true,"line":42,"description":"Index of last read chapter; defaults to 0"},{"name":"Description","type":"string?","required":false,"line":44,"description":"Optional description or synopsis"},{"name":"IsReadyForReading","type":"bool","required":true,"line":50,"description":"Flag indicating AI ingestion/processing completed and knowledge units are available"},{"name":"UserId","type":"string","required":true,"line":53,"description":"Owner user id (required)"},{"name":"User","type":"NexusUser? (navigation)","required":false,"line":56,"description":"Optional navigation to NexusUser (ForeignKey(nameof(UserId)))"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Domain.Entities.Author","NexusReader.Domain.Entities.NexusUser"],"patterns":["ORM Entity","Repository (consumer)"],"domainConcepts":["Ebook","Author","NexusUser","Tenant","AI ingestion / Knowledge Units"],"keyDetails":"Entity includes multi-tenant TenantId defaulting to 'global', navigation properties for Author and NexusUser, and an IsReadyForReading flag indicating AI processing state used by ingestion/reading flows.","orchestrationMethods":[],"typedContracts":[{"name":"Ebook","kind":"entity","line":9,"fieldCount":16,"evidencePaths":["NexusReader.Domain/Entities/Ebook.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"Ebook","line":9,"summary":"entity with 16 fields.","confidence":0.8,"evidencePaths":["NexusReader.Domain/Entities/Ebook.cs"]}]}
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diff --git a/src/.documentation/cache/summaries/NexusReader.Domain__Entities__KnowledgeUnit.cs.json b/src/.documentation/cache/summaries/NexusReader.Domain__Entities__KnowledgeUnit.cs.json
new file mode 100644
index 0000000..daf8a36
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Domain__Entities__KnowledgeUnit.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Domain/Entities/KnowledgeUnit.cs","purpose":"Defines the domain entity KnowledgeUnit which models a piece of knowledge (content, type, provenance) and its relationships for persistence (EF Core) within the Domain project.","classification":{"role":"entity","layer":"domain","confidence":0.95,"evidence":["Domain/entity pattern","Domain path heuristic","Namespace NexusReader.Domain.Entities","Class named KnowledgeUnit with [Key], [Required], [ForeignKey] attributes and navigation properties"]},"className":"KnowledgeUnit","methods":[],"types":[{"name":"KnowledgeUnit","kind":"entity","line":7,"purpose":"Represents a persisted unit of knowledge (content, type, version, tenant scoping) and links to other knowledge units.","fields":[{"name":"Id","type":"string","required":true,"line":9,"description":"Primary key (hash of Source+Content+Version), max length 128"},{"name":"EbookId","type":"Guid?","required":false,"line":13,"description":"Optional FK to an Ebook"},{"name":"Ebook","type":"Ebook?","required":false,"line":15,"description":"Navigation property to Ebook (ForeignKey on EbookId)"},{"name":"Version","type":"string","required":true,"line":18,"description":"Unit version, required, max length 50, default '1.0'"},{"name":"Type","type":"KnowledgeUnitType","required":true,"line":22,"description":"Domain enum indicating the unit type (from NexusReader.Domain.Enums)"},{"name":"Content","type":"string","required":true,"line":25,"description":"The textual content of the knowledge unit"},{"name":"MetadataJson","type":"string?","required":false,"line":28,"description":"Optional JSON string with metadata (e.g., page, path)"},{"name":"TenantId","type":"string","required":true,"line":30,"description":"Tenant scoping identifier, required, max length 128"},{"name":"CreatedAt","type":"DateTime","required":true,"line":34,"description":"Timestamp when the unit was created, defaulted to DateTime.UtcNow"},{"name":"OutgoingLinks","type":"ICollection<KnowledgeUnitLink>","required":true,"line":37,"description":"Navigation collection of outgoing links to other KnowledgeUnit instances"},{"name":"IncomingLinks","type":"ICollection<KnowledgeUnitLink>","required":true,"line":38,"description":"Navigation collection of incoming links from other KnowledgeUnit instances"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Domain/Enums (KnowledgeUnitType)","NexusReader.Domain/Entities/Ebook.cs","NexusReader.Domain/Entities/KnowledgeUnitLink.cs"],"patterns":["Entity","EF Core (Data Annotations)","Aggregate / Graph node (links to other units)"],"domainConcepts":["KnowledgeUnit","Ebook","KnowledgeUnitLink","Tenant scoping"],"keyDetails":"Primary-key is a derived hash (Source+Content+Version). The entity is EF Core oriented (DataAnnotations), includes tenant scoping, versioning, metadata JSON, created timestamp, and bidirectional link collections to model a graph of knowledge units.","orchestrationMethods":[],"typedContracts":[{"name":"KnowledgeUnit","kind":"entity","line":7,"fieldCount":11,"evidencePaths":["NexusReader.Domain/Entities/KnowledgeUnit.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"KnowledgeUnit","line":7,"summary":"entity with 11 fields.","confidence":0.8,"evidencePaths":["NexusReader.Domain/Entities/KnowledgeUnit.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Domain__Entities__KnowledgeUnitLink.cs.json b/src/.documentation/cache/summaries/NexusReader.Domain__Entities__KnowledgeUnitLink.cs.json
new file mode 100644
index 0000000..8eb92df
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Domain__Entities__KnowledgeUnitLink.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Domain/Entities/KnowledgeUnitLink.cs","purpose":"Defines the domain entity KnowledgeUnitLink which models a directed link between two KnowledgeUnit entities with metadata (relation type) and EF Core data annotations for persistence.","classification":{"role":"entity","layer":"domain","confidence":0.9,"evidence":["Domain/entity pattern","Domain path heuristic","namespace NexusReader.Domain.Entities (line 4)","DataAnnotations attributes ([Key], [Required], [MaxLength], [ForeignKey]) applied to properties","Class models relationships to KnowledgeUnit (SourceUnit, TargetUnit) via foreign keys"]},"className":"KnowledgeUnitLink","methods":[],"types":[{"name":"KnowledgeUnitLink","kind":"entity","line":6,"purpose":"Represents a directed relationship/link between two KnowledgeUnit entities with a typed relation label and persistence annotations.","fields":[{"name":"Id","type":"int","required":true,"line":9,"description":"Primary key for the link (annotated with [Key])."},{"name":"SourceUnitId","type":"string","required":true,"line":13,"description":"FK string identifier of the source KnowledgeUnit; [Required], [MaxLength(128)], defaults to empty string."},{"name":"TargetUnitId","type":"string","required":true,"line":17,"description":"FK string identifier of the target KnowledgeUnit; [Required], [MaxLength(128)], defaults to empty string."},{"name":"RelationType","type":"string","required":true,"line":21,"description":"Label describing the relation (e.g., \"Next\", \"Defines\", \"Contains\"); [Required], [MaxLength(50)], default \"References\"."},{"name":"SourceUnit","type":"KnowledgeUnit","required":true,"line":24,"description":"Navigation property to the source KnowledgeUnit; annotated with [ForeignKey(nameof(SourceUnitId))]."},{"name":"TargetUnit","type":"KnowledgeUnit","required":true,"line":27,"description":"Navigation property to the target KnowledgeUnit; annotated with [ForeignKey(nameof(TargetUnitId))]."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Domain/Entities/KnowledgeUnit.cs"],"patterns":["Entity","EF Core Data Annotations","Foreign Key Relationship"],"domainConcepts":["KnowledgeUnit","KnowledgeUnitLink","RelationType"],"keyDetails":"Simple EF Core entity with primary key (Id), two string FK identifiers (SourceUnitId, TargetUnitId) with max lengths, a RelationType with default \"References\", and navigation properties annotated with [ForeignKey] to link to KnowledgeUnit entities.","orchestrationMethods":[],"typedContracts":[{"name":"KnowledgeUnitLink","kind":"entity","line":6,"fieldCount":6,"evidencePaths":["NexusReader.Domain/Entities/KnowledgeUnitLink.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"KnowledgeUnitLink","line":6,"summary":"entity with 6 fields.","confidence":0.8,"evidencePaths":["NexusReader.Domain/Entities/KnowledgeUnitLink.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Domain__Entities__NexusUser.cs.json b/src/.documentation/cache/summaries/NexusReader.Domain__Entities__NexusUser.cs.json
new file mode 100644
index 0000000..ecc4d09
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Domain__Entities__NexusUser.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Domain/Entities/NexusUser.cs","purpose":"Domain entity representing an application user, extending IdentityUser with tenancy, subscription, AI quota, reading state and navigation to related domain objects.","classification":{"role":"entity","layer":"domain","confidence":0.9,"evidence":["Domain/entity pattern","Domain path heuristic","namespace NexusReader.Domain.Entities","public class NexusUser : IdentityUser","Contains navigation properties (SubscriptionPlan, Ebooks, QuizResults) and domain-specific fields (TenantId, SubscriptionPlanId, AITokenLimit)"]},"className":"NexusUser","methods":[],"types":[{"name":"NexusUser","kind":"entity","line":7,"purpose":"Represents a user in the domain with identity integration, tenant-scoping, subscription and AI quota accounting, and reading-related state.","fields":[{"name":"DisplayName","type":"string?","required":false,"line":13,"description":"User's display name or full name (MaxLength 100)."},{"name":"AITokenLimit","type":"int","required":true,"line":18,"description":"Total AI tokens available for the user (depends on subscription)."},{"name":"AITokensUsed","type":"int","required":true,"line":23,"description":"AI tokens consumed by the user in the current billing period."},{"name":"LastAiActionDate","type":"DateTime?","required":false,"line":28,"description":"Date when the user last performed an AI-related action."},{"name":"TenantId","type":"string","required":true,"line":35,"description":"Multi-tenant identifier (Required, MaxLength 128), defaults to \"global\"."},{"name":"SubscriptionPlanId","type":"int","required":true,"line":41,"description":"Foreign key for the current subscription plan (Required)."},{"name":"SubscriptionPlan","type":"SubscriptionPlan?","required":false,"line":46,"description":"Navigation property for the current subscription plan."},{"name":"Ebooks","type":"ICollection<Ebook>","required":true,"line":51,"description":"Collection of e-books owned by the user; initialized to an empty list."},{"name":"QuizResults","type":"ICollection<QuizResult>","required":true,"line":56,"description":"Collection of quiz results completed by the user; initialized to an empty list."},{"name":"LastReadPageId","type":"string?","required":false,"line":62,"description":"ID of the last page read by the user (MaxLength 255)."},{"name":"LastReadAt","type":"DateTime?","required":false,"line":67,"description":"Last read timestamp."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Domain/Entities/SubscriptionPlan.cs","NexusReader.Domain/Entities/Ebook.cs","NexusReader.Domain/Entities/QuizResult.cs","Microsoft.AspNetCore.Identity (framework)"],"patterns":["Entity","IdentityUser-extension","ORM-navigation-properties"],"domainConcepts":["User","Tenant","SubscriptionPlan","AITokens","Ebook","QuizResult","ReadingState"],"keyDetails":"Lightweight domain entity that augments ASP.NET Identity user with tenancy, subscription linkage, AI quota tracking and reading-state navigation; no runtime methods in this file.","orchestrationMethods":[],"typedContracts":[{"name":"NexusUser","kind":"entity","line":7,"fieldCount":11,"evidencePaths":["NexusReader.Domain/Entities/NexusUser.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"NexusUser","line":7,"summary":"entity with 11 fields.","confidence":0.8,"evidencePaths":["NexusReader.Domain/Entities/NexusUser.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Domain__Entities__QuizResult.cs.json b/src/.documentation/cache/summaries/NexusReader.Domain__Entities__QuizResult.cs.json
new file mode 100644
index 0000000..ca1a961
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Domain__Entities__QuizResult.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Domain/Entities/QuizResult.cs","purpose":"Defines the domain entity that records a user's result for an AI-generated quiz, including metadata (user, tenant, topic), score, computed percentage, and completion timestamp.","classification":{"role":"entity","layer":"domain","confidence":0.9,"evidence":["Domain/entity pattern","Domain path heuristic","Namespace: NexusReader.Domain.Entities","Class uses [Key], [Required], [ForeignKey] attributes (EF Core/ORM metadata)","Represents a persistent model (Id, foreign key to NexusUser)"]},"className":"QuizResult","methods":[{"name":"implicit constructor","line":9,"endLine":34,"signature":"() -> QuizResult","purpose":"Initializes instance-level default values for properties when a new QuizResult is created.","calls":[],"actions":[{"id":"metadata_11","kind":"mapping","label":"EF Core attributes applied","line":11,"detail":"Attributes such as [Key], [Required], [MaxLength], [ForeignKey] are present on properties and used by ORM","visibility":"detail-only","confidence":0.7},{"id":"init_12","kind":"mapping","label":"Set Id to new Guid","line":12,"detail":"Id property initialized to Guid.NewGuid() at declaration","visibility":"detail-only","confidence":0.7},{"id":"init_15","kind":"mapping","label":"Set UserId default","line":15,"detail":"UserId initialized to empty string","visibility":"detail-only","confidence":0.7},{"id":"init_22","kind":"mapping","label":"Set TenantId default","line":22,"detail":"TenantId initialized to \"global\"","visibility":"detail-only","confidence":0.7},{"id":"init_25","kind":"mapping","label":"Set Topic default","line":25,"detail":"Topic initialized to empty string","visibility":"detail-only","confidence":0.7},{"id":"init_33","kind":"mapping","label":"Set CompletedDate to UTC now","line":33,"detail":"CompletedDate initialized to DateTime.UtcNow at declaration","visibility":"detail-only","confidence":0.7}]},{"name":"Percentage (getter)","line":31,"endLine":31,"signature":"() -> double","purpose":"Computes the quiz score percentage as Score/TotalQuestions*100, guarding against division by zero.","calls":[],"actions":[{"id":"guard-clause_31","kind":"guard-clause","label":"Avoid divide-by-zero","line":31,"detail":"If TotalQuestions > 0 returns (double)Score/TotalQuestions*100, else returns 0","conditionSummary":"TotalQuestions > 0","outcomeLabels":["return computed percentage","return 0"],"visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"QuizResult","kind":"entity","line":9,"purpose":"Represents a persisted quiz result for a user including score, topic, tenant, and completion timestamp.","fields":[{"name":"Id","type":"Guid","required":true,"line":12,"description":"Primary key; initialized to a new Guid by default; decorated with [Key]."},{"name":"UserId","type":"string","required":true,"line":15,"description":"FK string id of the user who took the quiz; decorated with [Required]."},{"name":"User","type":"NexusUser?","required":false,"line":18,"description":"Navigation property to the NexusUser entity; marked with [ForeignKey(nameof(UserId))]."},{"name":"TenantId","type":"string","required":true,"line":22,"description":"Tenant identifier with [Required] and [MaxLength(128)], defaulting to \"global\"."},{"name":"Topic","type":"string","required":true,"line":25,"description":"Topic or subject of the quiz; [Required], default empty string."},{"name":"Score","type":"int","required":false,"line":27,"description":"Number of correct answers."},{"name":"TotalQuestions","type":"int","required":false,"line":29,"description":"Total number of questions in the quiz used to compute Percentage."},{"name":"Percentage","type":"double","required":false,"line":31,"description":"Computed read-only property returning (Score/TotalQuestions)*100 with divide-by-zero guard."},{"name":"CompletedDate","type":"DateTime","required":false,"line":33,"description":"When the quiz was completed; defaulted to DateTime.UtcNow."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Domain/Entities/NexusUser.cs"],"patterns":["Entity","EF Core (ORM)","Computed Property"],"domainConcepts":["QuizResult","User","Tenant","Topic","Score/Percentage"],"keyDetails":"Small EF Core entity with declarative attributes, default initializers (Id->Guid.NewGuid, CompletedDate->UtcNow), and a computed Percentage getter that guards against division by zero.","orchestrationMethods":[],"typedContracts":[{"name":"QuizResult","kind":"entity","line":9,"fieldCount":9,"evidencePaths":["NexusReader.Domain/Entities/QuizResult.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"QuizResult","line":9,"summary":"entity with 9 fields.","confidence":0.8,"evidencePaths":["NexusReader.Domain/Entities/QuizResult.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Domain__Entities__SemanticKnowledgeCache.cs.json b/src/.documentation/cache/summaries/NexusReader.Domain__Entities__SemanticKnowledgeCache.cs.json
new file mode 100644
index 0000000..1b13823
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Domain__Entities__SemanticKnowledgeCache.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Domain/Entities/SemanticKnowledgeCache.cs","purpose":"Defines a domain entity that caches semantic extraction results (JSON payload, original text, model/prompt metadata) and stores an optional vector embedding for semantic search.","classification":{"role":"entity","layer":"domain","confidence":0.8,"evidence":["Domain/entity pattern","Domain path heuristic","Namespace NexusReader.Domain.Entities and folder path Entities","Class is a POCO with data annotations ([Key], [Required], [MaxLength]) used by an ORM","Uses Pgvector.Vector for embeddings (persistence of vector data)"]},"className":"SemanticKnowledgeCache","methods":[],"types":[{"name":"SemanticKnowledgeCache","kind":"entity","line":7,"purpose":"Represents a persisted cache entry for semantic knowledge including raw text, JSON result, model/prompt metadata, tenant scoping, and an optional vector embedding for semantic search.","fields":[{"name":"ContentHash","type":"string","required":true,"line":11,"description":"Primary key: hash of the content used as unique identifier (MaxLength 128)."},{"name":"JsonData","type":"string","required":true,"line":14,"description":"Serialized JSON result of the semantic extraction or analysis."},{"name":"OriginalText","type":"string","required":true,"line":17,"description":"Original source text used to produce the JSONData / embedding."},{"name":"ModelId","type":"string","required":true,"line":21,"description":"Identifier of the model used to generate the semantic data (MaxLength 50). Defaults to 'gemini-1.5-flash'."},{"name":"PromptVersion","type":"string","required":true,"line":25,"description":"Version of the prompt used for generation (MaxLength 10). Defaults to '1.0'."},{"name":"TenantId","type":"string","required":true,"line":29,"description":"Tenant or scope identifier for multi-tenant isolation (MaxLength 128)."},{"name":"Embedding","type":"Pgvector.Vector?","required":false,"line":32,"description":"Optional vector embedding used for semantic search (comment: 768 dimensions)."},{"name":"CreatedAt","type":"DateTime","required":true,"line":34,"description":"UTC timestamp when the cache entry was created; defaulted to DateTime.UtcNow."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Domain/Entities/SemanticKnowledgeCache.cs","Pgvector (NuGet package)","System.ComponentModel.DataAnnotations (for [Key],[Required],[MaxLength])"],"patterns":["ORM Entity","Repository (implied)","Vector embedding cache"],"domainConcepts":["Semantic cache","Embedding","Tenant scoping","Model and prompt versioning","Content hashing (cache key)"],"keyDetails":"Primary key is ContentHash (MaxLength 128). Embedding is stored via Pgvector.Vector (comment notes 768 dims). ModelId and PromptVersion have defaults and length constraints. CreatedAt defaults to UTC now.","orchestrationMethods":[],"typedContracts":[{"name":"SemanticKnowledgeCache","kind":"entity","line":7,"fieldCount":8,"evidencePaths":["NexusReader.Domain/Entities/SemanticKnowledgeCache.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"SemanticKnowledgeCache","line":7,"summary":"entity with 8 fields.","confidence":0.8,"evidencePaths":["NexusReader.Domain/Entities/SemanticKnowledgeCache.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Domain__Entities__SubscriptionPlan.cs.json b/src/.documentation/cache/summaries/NexusReader.Domain__Entities__SubscriptionPlan.cs.json
new file mode 100644
index 0000000..3ed16d4
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Domain__Entities__SubscriptionPlan.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Domain/Entities/SubscriptionPlan.cs","purpose":"Defines the domain entity SubscriptionPlan which models subscription tiers, pricing and AI token limits used by the application.","classification":{"role":"entity","layer":"domain","confidence":0.9,"evidence":["Domain/entity pattern","Domain path heuristic","Contains public class SubscriptionPlan with data annotations (Key, Required, MaxLength)","Defines constants for plan names and IDs used across the domain"]},"className":"SubscriptionPlan","methods":[],"types":[{"name":"SubscriptionPlan","kind":"entity","line":5,"purpose":"Represents a subscription tier with identifiers, display name, token limits and billing identifiers/pricing.","fields":[{"name":"FreeName","type":"string (const)","required":false,"line":7,"description":"Static constant for the Free plan name"},{"name":"BasicName","type":"string (const)","required":false,"line":8,"description":"Static constant for the Basic plan name"},{"name":"ProName","type":"string (const)","required":false,"line":9,"description":"Static constant for the Pro plan name"},{"name":"EnterpriseName","type":"string (const)","required":false,"line":10,"description":"Static constant for the Enterprise plan name"},{"name":"FreeId","type":"int (const)","required":false,"line":12,"description":"Static constant for the Free plan numeric id"},{"name":"BasicId","type":"int (const)","required":false,"line":13,"description":"Static constant for the Basic plan numeric id"},{"name":"ProId","type":"int (const)","required":false,"line":14,"description":"Static constant for the Pro plan numeric id"},{"name":"EnterpriseId","type":"int (const)","required":false,"line":15,"description":"Static constant for the Enterprise plan numeric id"},{"name":"Id","type":"int","required":true,"line":18,"description":"Primary key for the subscription plan (annotated with [Key])"},{"name":"PlanName","type":"string","required":true,"line":22,"description":"Human-readable plan name (annotated with [Required] and [MaxLength(50)])"},{"name":"AITokenLimit","type":"int","required":false,"line":24,"description":"Per-period AI token allotment for this plan"},{"name":"IsUnlimitedTokens","type":"bool","required":false,"line":26,"description":"Flag indicating tokens are unlimited for this plan"},{"name":"MonthlyPrice","type":"decimal","required":false,"line":28,"description":"Monthly price for the plan"},{"name":"StripeProductId","type":"string","required":false,"line":31,"description":"Optional Stripe product identifier (MaxLength 50)"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Entity","EF Core DataAnnotations"],"domainConcepts":["SubscriptionPlan","Pricing","Billing/Stripe integration","AI token limits"],"keyDetails":"Simple EF-style entity with DataAnnotations for validation and length; includes static constants for well-known plan names and numeric IDs used application-wide.","orchestrationMethods":[],"typedContracts":[{"name":"SubscriptionPlan","kind":"entity","line":5,"fieldCount":14,"evidencePaths":["NexusReader.Domain/Entities/SubscriptionPlan.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"SubscriptionPlan","line":5,"summary":"entity with 14 fields.","confidence":0.8,"evidencePaths":["NexusReader.Domain/Entities/SubscriptionPlan.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Domain__Enums__KnowledgeUnitType.cs.json b/src/.documentation/cache/summaries/NexusReader.Domain__Enums__KnowledgeUnitType.cs.json
new file mode 100644
index 0000000..0627d81
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Domain__Enums__KnowledgeUnitType.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Domain/Enums/KnowledgeUnitType.cs","purpose":"Defines the domain-level enumeration of different knowledge unit categories used across the NexusReader system.","classification":{"role":"entity","layer":"domain","confidence":0.9,"evidence":["Domain/entity pattern","namespace NexusReader.Domain.Enums","file path indicates Domain/Enums and contains a single enum declaration"]},"className":"","methods":[],"types":[{"name":"KnowledgeUnitType","kind":"enum","line":3,"purpose":"Represents possible kinds of knowledge units (e.g., Section, Table, Definition) for classification and branching in domain logic.","fields":[{"name":"Section","type":"int","required":true,"line":5,"description":"A document section"},{"name":"Table","type":"int","required":true,"line":6,"description":"A tabular data unit"},{"name":"Definition","type":"int","required":true,"line":7,"description":"A definitional entry"},{"name":"ProcedureStep","type":"int","required":true,"line":8,"description":"A step in a procedure"},{"name":"PolicyRule","type":"int","required":true,"line":9,"description":"A policy or rule item"},{"name":"KeyConcept","type":"int","required":true,"line":10,"description":"An important concept or takeaway"},{"name":"Snippet","type":"int","required":true,"line":11,"description":"A short text/code snippet"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Enum"],"domainConcepts":["KnowledgeUnit"],"keyDetails":"Simple, single-file enum used for domain classification; no runtime logic, methods, or external dependencies present.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Domain__NexusReader.Domain.csproj.json b/src/.documentation/cache/summaries/NexusReader.Domain__NexusReader.Domain.csproj.json
new file mode 100644
index 0000000..6362799
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Domain__NexusReader.Domain.csproj.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Domain/NexusReader.Domain.csproj","purpose":"Project file for the NexusReader.Domain assembly: declares build settings (TargetFramework net10.0), compiler behaviors (implicit usings, nullable), runtime configuration generation, and package dependencies used by the Domain project.","classification":{"role":"config","layer":"domain","confidence":0.9,"evidence":["Domain/entity pattern","File name and path indicate the Domain project (NexusReader.Domain)","TargetFramework set to net10.0 (line 4)","PackageReference entries for Pgvector and Microsoft.Extensions.Identity.Stores (lines 11-12)","GenerateRuntimeConfigurationFiles enabled (line 7)"]},"className":"","methods":[],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["[object Object]","[object Object]"],"patterns":["project-file"],"domainConcepts":["Domain project boundary for NexusReader"],"keyDetails":"Targets .NET 10 (net10.0), enables implicit usings and nullable reference types, and instructs generation of runtime configuration files. Declares dependencies on Pgvector and Microsoft.Extensions.Identity.Stores.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure.Mobile__Class1.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure.Mobile__Class1.cs.json
new file mode 100644
index 0000000..281a666
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure.Mobile__Class1.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure.Mobile/Class1.cs","purpose":"Placeholder/empty class in the NexusReader.Infrastructure.Mobile project; likely a template/auto-generated file with no runtime behavior.","classification":{"role":"unknown","layer":"unknown","confidence":0.6,"evidence":["Namespace: NexusReader.Infrastructure.Mobile indicates infrastructure/mobile concerns","File contains an empty class (no methods or members) so it does not implement startup or service registration"]},"className":"Class1","methods":[],"types":[{"name":"Class1","kind":"model","line":3,"purpose":"Empty placeholder class declared in the mobile infrastructure project.","fields":[]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":[],"domainConcepts":[],"keyDetails":"File contains only an empty Class1 declaration (lines 3-6). No runtime behavior, calls, or type members to analyze.","orchestrationMethods":[],"typedContracts":[{"name":"Class1","kind":"model","line":3,"fieldCount":0,"evidencePaths":["NexusReader.Infrastructure.Mobile/Class1.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"Class1","line":3,"summary":"model with 0 fields.","confidence":0.8,"evidencePaths":["NexusReader.Infrastructure.Mobile/Class1.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure.Mobile__NexusReader.Infrastructure.Mobile.csproj.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure.Mobile__NexusReader.Infrastructure.Mobile.csproj.json
new file mode 100644
index 0000000..f378fc8
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure.Mobile__NexusReader.Infrastructure.Mobile.csproj.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj","purpose":"MSBuild project file for the NexusReader mobile app; defines target platforms, MAUI usage, package and project dependencies, and build-time settings for the mobile application.","classification":{"role":"config","layer":"infrastructure","confidence":0.8,"evidence":["Contains TargetFrameworks and MSBuild conditionals (lines 4-6)","Enables UseMaui and references Microsoft.Maui.Essentials (lines 7-8, 20)","Has a ProjectReference to NexusReader.Application (line 16)"]},"className":"","methods":[],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["[object Object]","[object Object]"],"patterns":["MAUI App","Multi-targeting"],"domainConcepts":["Mobile","MAUI","Android","iOS","macCatalyst","Windows"],"keyDetails":"Targets net10.0-android always and conditionally adds net10.0-ios, net10.0-maccatalyst on macOS and net10.0-windows10.0.19041.0 on Windows (lines 4-6). MAUI and MAUI Essentials are enabled (lines 7-8). Implicit usings and nullable are enabled (lines 10-11). Project references Application project (line 16).","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure.Mobile__Services__MauiPlatformService.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure.Mobile__Services__MauiPlatformService.cs.json
new file mode 100644
index 0000000..466783f
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure.Mobile__Services__MauiPlatformService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs","purpose":"MAUI platform implementation that adapts device/haptic APIs to the application's IPlatformService abstraction for mobile platforms.","classification":{"role":"service","layer":"infrastructure","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Class MauiPlatformService implements IPlatformService (line 8)","Uses Microsoft.Maui device and haptic APIs to provide platform-specific behavior (lines 14, 29, 55-56)"]},"className":"MauiPlatformService","methods":[{"name":"VibrateSuccessAsync","line":10,"endLine":23,"signature":"() -> Task<Result>","purpose":"Performs a short success haptic pattern (two clicks) and returns a Result indicating success or failure.","calls":[],"actions":[{"id":"try-catch_12","kind":"mapping","label":"Exception handling with Result fallback","line":12,"detail":"Wraps platform interactions in try/catch and returns FluentResults.Result","conditionSummary":"any Exception thrown by platform calls","outcomeLabels":["Result.Ok on success","Result.Fail(ex.Message) on exception"],"visibility":"detail-only","confidence":0.7},{"id":"external-call_14","kind":"external-call","label":"Haptic click","line":14,"detail":"Calls HapticFeedback.Default.Perform(HapticFeedbackType.Click) (framework)","visibility":"detail-only","confidence":0.7},{"id":"async-delay_15","kind":"mapping","label":"Wait between haptics","line":15,"detail":"await Task.Delay(100)","visibility":"detail-only","confidence":0.7},{"id":"external-call_16","kind":"external-call","label":"Haptic click","line":16,"detail":"Calls HapticFeedback.Default.Perform(HapticFeedbackType.Click) (framework)","visibility":"detail-only","confidence":0.7},{"id":"vibratesuccessasync_return_17_0","kind":"return","label":"Returns result","line":17,"detail":"return Result.Ok();","visibility":"detail-only","confidence":0.7},{"id":"vibratesuccessasync_return_21_1","kind":"return","label":"Returns result","line":21,"detail":"return Result.Fail(ex.Message);","visibility":"detail-only","confidence":0.7}]},{"name":"VibrateErrorAsync","line":25,"endLine":36,"signature":"() -> Task<Result>","purpose":"Performs an error haptic (long press) and returns a Result success/failure.","calls":[],"actions":[{"id":"try-catch_27","kind":"mapping","label":"Exception handling with Result fallback","line":27,"detail":"Wraps platform interaction in try/catch and returns FluentResults.Result","conditionSummary":"any Exception thrown by platform calls","outcomeLabels":["Result.Ok on success","Result.Fail(ex.Message) on exception"],"visibility":"detail-only","confidence":0.7},{"id":"external-call_29","kind":"external-call","label":"Haptic long press","line":29,"detail":"Calls HapticFeedback.Default.Perform(HapticFeedbackType.LongPress) (framework)","visibility":"detail-only","confidence":0.7},{"id":"vibrateerrorasync_return_30_0","kind":"return","label":"Returns result","line":30,"detail":"return Result.Ok();","visibility":"detail-only","confidence":0.7},{"id":"vibrateerrorasync_return_34_1","kind":"return","label":"Returns result","line":34,"detail":"return Result.Fail(ex.Message);","visibility":"detail-only","confidence":0.7}]},{"name":"VibrateAsync","line":38,"endLine":49,"signature":"(milliseconds: int) -> Task<Result>","purpose":"Attempts a generic click haptic (ignores milliseconds parameter) and returns a Result success/failure.","calls":[],"actions":[{"id":"parameter-unused_38","kind":"mapping","label":"milliseconds parameter is not used","line":38,"detail":"Method signature accepts milliseconds but method body performs a single click only","visibility":"detail-only","confidence":0.7},{"id":"try-catch_40","kind":"mapping","label":"Exception handling with Result fallback","line":40,"detail":"Wraps platform interaction in try/catch and returns FluentResults.Result","conditionSummary":"any Exception thrown by platform calls","outcomeLabels":["Result.Ok on success","Result.Fail(ex.Message) on exception"],"visibility":"detail-only","confidence":0.7},{"id":"external-call_42","kind":"external-call","label":"Haptic click","line":42,"detail":"Calls HapticFeedback.Default.Perform(HapticFeedbackType.Click) (framework)","visibility":"detail-only","confidence":0.7},{"id":"vibrateasync_return_43_0","kind":"return","label":"Returns result","line":43,"detail":"return Result.Ok();","visibility":"detail-only","confidence":0.7},{"id":"vibrateasync_return_47_1","kind":"return","label":"Returns result","line":47,"detail":"return Result.Fail(ex.Message);","visibility":"detail-only","confidence":0.7}]},{"name":"GetDeviceContext","line":51,"endLine":69,"signature":"() -> Result<DeviceContext>","purpose":"Gathers device model/manufacturer, maps idiom and display orientation to application DeviceContext and returns it wrapped in a Result.","calls":[{"targetFile":"self","targetMethod":"MapDeviceType","callLine":61,"paramSummary":"device.Idiom"},{"targetFile":"self","targetMethod":"MapOrientation","callLine":62,"paramSummary":"display.Orientation"},{"targetFile":"NexusReader.Application.Abstractions.Services","targetMethod":"DeviceContext (ctor)","callLine":58,"paramSummary":"model, manufacturer, mapped DeviceType, mapped DisplayOrientation"}],"actions":[{"id":"try-catch_53","kind":"mapping","label":"Exception handling with Result fallback","line":53,"detail":"Wraps reads/mapping in try/catch and returns FluentResults.Result","conditionSummary":"any Exception thrown while reading device/display or mapping","outcomeLabels":["Result.Ok(DeviceContext) on success","Result.Fail(ex.Message) on exception"],"visibility":"detail-only","confidence":0.7},{"id":"external-read_55","kind":"mapping","label":"Read device info","line":55,"detail":"var device = DeviceInfo.Current (framework)","visibility":"detail-only","confidence":0.7},{"id":"external-read_56","kind":"mapping","label":"Read display info","line":56,"detail":"var display = DeviceDisplay.Current.MainDisplayInfo (framework)","visibility":"detail-only","confidence":0.7},{"id":"object-creation_58","kind":"mapping","label":"Create DeviceContext","line":58,"detail":"Constructs new DeviceContext with gathered and mapped values (application type)","visibility":"detail-only","confidence":0.7},{"id":"getdevicecontext_return_58_0","kind":"return","label":"Returns result","line":58,"detail":"return Result.Ok(new DeviceContext(","visibility":"detail-only","confidence":0.7},{"id":"mapping_61","kind":"mapping","label":"Map device idiom to app DeviceType","line":61,"detail":"Calls MapDeviceType(device.Idiom) to translate platform idiom to app enum","visibility":"detail-only","confidence":0.7},{"id":"getdevicecontext_mapping_61_1","kind":"mapping","label":"Maps data or transforms 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure.Mobile__Services__MauiStorageService.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure.Mobile__Services__MauiStorageService.cs.json
new file mode 100644
index 0000000..7d48be9
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure.Mobile__Services__MauiStorageService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure.Mobile/Services/MauiStorageService.cs","purpose":"MAUI-specific implementation of INativeStorageService that adapts MAUI Preferences and SecureStorage APIs to the application's FluentResults-based async storage abstraction.","classification":{"role":"service","layer":"infrastructure","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Implements INativeStorageService (NexusReader.Application.Abstractions.Services)","Uses Microsoft.Maui.Storage APIs (Preferences, SecureStorage)","Namespace NexusReader.Infrastructure.Mobile.Services indicates platform/infrastructure role"]},"className":"MauiStorageService","methods":[{"name":"SaveStringAsync","line":10,"endLine":21,"signature":"(key: string, value: string) -> Task<Result>","purpose":"Stores a string value in MAUI Preferences and returns a FluentResults Result indicating success or failure.","calls":[],"actions":[{"id":"try-catch_12","kind":"mapping","label":"Protects Preference write","line":12,"detail":"try { Preferences.Default.Set(key, value); 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure__Configuration__AiSettings.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Configuration__AiSettings.cs.json
new file mode 100644
index 0000000..ba6ac71
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Configuration__AiSettings.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure/Configuration/AiSettings.cs","purpose":"Defines a POCO that models AI/LLM configuration settings (API key, model names, token limits, retries, temperature) intended for binding from configuration (likely using the .NET Options pattern).","classification":{"role":"config","layer":"infrastructure","confidence":0.9,"evidence":["Config/settings pattern","Namespace: NexusReader.Infrastructure.Configuration","Contains a SectionName constant and simple properties matching configuration keys","Type is a plain settings/POCO used to hold values such as ApiKey, Model, and token limits"]},"className":"AiSettings","methods":[],"types":[{"name":"AiSettings","kind":"dto","line":3,"purpose":"Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).","fields":[{"name":"SectionName","type":"string (const)","required":true,"line":5,"description":"Configuration section key used to bind these settings (\"Ai:Google\")."},{"name":"ApiKey","type":"string","required":false,"line":7,"description":"API key for the AI provider; default empty string."},{"name":"Model","type":"string","required":false,"line":8,"description":"Primary model identifier, default \"gemini-1.5-flash\"."},{"name":"EmbeddingModel","type":"string","required":false,"line":9,"description":"Embedding model identifier, default \"gemini-embedding-001\"."},{"name":"MaxInputTokens","type":"int","required":false,"line":14,"description":"Maximum allowed input tokens (default 15000)."},{"name":"MaxOutputTokens","type":"int","required":false,"line":16,"description":"Maximum allowed output tokens (default 1000)."},{"name":"RetryAttempts","type":"int","required":false,"line":17,"description":"Number of retry attempts for calls (default 3)."},{"name":"Temperature","type":"double","required":false,"line":18,"description":"Sampling temperature for model responses (default 0.1)."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Options Pattern","Configuration POCO"],"domainConcepts":["AI configuration","LLM model selection","Embeddings","Rate/size limits and retry policy"],"keyDetails":"Simple configuration holder with SectionName = \"Ai:Google\" and sensible defaults for model, embedding model, token limits, retry attempts, and temperature; intended for binding from configuration at startup.","orchestrationMethods":[],"typedContracts":[{"name":"AiSettings","kind":"dto","line":3,"fieldCount":8,"evidencePaths":["NexusReader.Infrastructure/Configuration/AiSettings.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"AiSettings","line":3,"summary":"dto with 8 fields.","confidence":0.8,"evidencePaths":["NexusReader.Infrastructure/Configuration/AiSettings.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure__Configuration__StripeSettings.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Configuration__StripeSettings.cs.json
new file mode 100644
index 0000000..6a8b2e1
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Configuration__StripeSettings.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure/Configuration/StripeSettings.cs","purpose":"Defines configuration settings for Stripe integration (product IDs) and exposes the configuration section name for binding.","classification":{"role":"config","layer":"infrastructure","confidence":0.9,"evidence":["Config/settings pattern","Namespace: NexusReader.Infrastructure.Configuration","Record named StripeSettings with SectionName constant and product ID properties"]},"className":"StripeSettings","methods":[],"types":[{"name":"StripeSettings","kind":"dto","line":3,"purpose":"Configuration DTO that holds Stripe product identifiers and the configuration section key.","fields":[{"name":"SectionName","type":"string (const)","required":true,"line":5,"description":"Configuration section key used for binding (\"Stripe\")."},{"name":"ProProductId","type":"string","required":true,"line":6,"description":"Product id for the Pro tier; default empty string."},{"name":"BasicProductId","type":"string","required":true,"line":7,"description":"Product id for the Basic tier; default empty string."},{"name":"FreeProductId","type":"string","required":true,"line":8,"description":"Product id for the Free tier; default empty string."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Options pattern","Configuration DTO"],"domainConcepts":["Stripe","ProductId"],"keyDetails":"A simple immutable record used for binding the 'Stripe' configuration section; contains three init-only product id properties and a SectionName constant.","orchestrationMethods":[],"typedContracts":[{"name":"StripeSettings","kind":"dto","line":3,"fieldCount":4,"evidencePaths":["NexusReader.Infrastructure/Configuration/StripeSettings.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"StripeSettings","line":3,"summary":"dto with 4 fields.","confidence":0.8,"evidencePaths":["NexusReader.Infrastructure/Configuration/StripeSettings.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure__DependencyInjection.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure__DependencyInjection.cs.json
new file mode 100644
index 0000000..f1d4755
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure__DependencyInjection.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure/DependencyInjection.cs","purpose":"Registers and configures infrastructure dependencies: DB contexts, external clients (Qdrant, Neo4j), Hangfire, AI clients/resilience, app services, authorization policies, and related configuration for the NexusReader solution.","classification":{"role":"service-registration","layer":"infrastructure","confidence":0.9,"evidence":["Service registration API usage","File defines an IServiceCollection extension AddInfrastructure","Registers DbContexts, external clients, Hangfire, AI, and app services"]},"className":"DependencyInjection","methods":[{"name":"AddInfrastructure","line":31,"endLine":135,"signature":"(this IServiceCollection services, IConfiguration configuration) -> IServiceCollection","purpose":"Configures and registers infrastructure services and external clients (DBs, AI, vector/graph stores, job processing, authorization, and app-layer implementations) into the DI container.","calls":[{"targetFile":"NexusReader.Infrastructure/Persistence/AppDbContext.cs","targetMethod":"AppDbContext (DbContext)","callLine":36,"paramSummary":"pgConnectionString via UseNpgsql in AddDbContextFactory"},{"targetFile":"NexusReader.Infrastructure/Persistence/AppDbContext.cs","targetMethod":"AppDbContext (DbContext)","callLine":41,"paramSummary":"pgConnectionString via UseNpgsql in AddDbContext"},{"targetFile":"NexusReader.Infrastructure/Persistence/AppDbContext.cs","targetMethod":"AppDbContext (DbContext)","callLine":47,"paramSummary":"sqliteConnectionString via UseSqlite in AddDbContextFactory"},{"targetFile":"NexusReader.Infrastructure/Persistence/AppDbContext.cs","targetMethod":"AppDbContext (DbContext)","callLine":51,"paramSummary":"sqliteConnectionString via UseSqlite in AddDbContext"},{"targetFile":"NexusReader.Infrastructure/Services/KnowledgeService.cs","targetMethod":"KnowledgeService (implementation)","callLine":112,"paramSummary":"registered as IKnowledgeService (scoped)"},{"targetFile":"NexusReader.Infrastructure/Services/EpubReaderService.cs","targetMethod":"EpubReaderService (implementation)","callLine":113,"paramSummary":"registered as IEpubReader (transient)"},{"targetFile":"NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs","targetMethod":"EpubMetadataExtractor (implementation)","callLine":114,"paramSummary":"registered as IEpubMetadataExtractor (transient)"},{"targetFile":"NexusReader.Infrastructure/Services/BookStorageService.cs","targetMethod":"BookStorageService (implementation)","callLine":118,"paramSummary":"registered as IBookStorageService (scoped)"},{"targetFile":"NexusReader.Infrastructure.Persistence/EbookRepository.cs","targetMethod":"EbookRepository (implementation)","callLine":121,"paramSummary":"registered as IEbookRepository (scoped)"},{"targetFile":"NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs","targetMethod":"SignalRSyncBroadcaster (implementation)","callLine":124,"paramSummary":"registered as ISyncBroadcaster (scoped)"},{"targetFile":"NexusReader.Application.Security/ProUserHandler.cs","targetMethod":"ProUserHandler (authorization handler)","callLine":131,"paramSummary":"registered as IAuthorizationHandler (scoped)"},{"targetFile":"self","targetMethod":"InfrastructureMarker (class)","callLine":132,"paramSummary":"registered as IInfrastructureMarker (scoped)"}],"actions":[{"id":"branch_33","kind":"branch","label":"Selects DB provider","line":33,"detail":"If Postgres connection string present -> configure Npgsql DbContextFactory and DbContext; else configure Sqlite DbContextFactory and DbContext","visibility":"detail-only","confidence":0.7},{"id":"addinfrastructure_branch_34_0","kind":"branch","label":"Evaluates branch condition","line":34,"detail":"if (!string.IsNullOrEmpty(pgConnectionString))","conditionSummary":"!string.IsNullOrEmpty(pgConnectionString)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"addinfrastructure_fallback_44_1","kind":"fallback","label":"Falls back to alternate path","line":44,"detail":"else","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"external-client-registration_56","kind":"mapping","label":"Qdrant client registration","line":56,"detail":"Creates and registers QdrantClient singleton with resolved QdrantConnection URL","visibility":"detail-only","confidence":0.7},{"id":"external-client-registration_60","kind":"mapping","label":"Neo4j driver registration","line":60,"detail":"Creates and registers IDriver singleton using GraphDatabase.Driver with resolved Neo4jConnection URL","visibility":"detail-only","confidence":0.7},{"id":"addinfrastructure_branch_64_2","kind":"branch","label":"Evaluates branch condition","line":64,"detail":"if (!string.IsNullOrEmpty(pgConnectionString))","conditionSummary":"!string.IsNullOrEmpty(pgConnectionString)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"conditional-registration_64","kind":"mapping","label":"Hangfire setup only with Postgres","line":64,"detail":"Registers Hangfire and HangfireServer if Postgres connection string exists","visibility":"detail-only","confidence":0.7},{"id":"config-binding_72","kind":"mapping","label":"Bind AiSettings and StripeSettings","line":72,"detail":"services.Configure<T> called for AiSettings and StripeSettings using configuration sections","visibility":"detail-only","confidence":0.7},{"id":"addinfrastructure_branch_76_3","kind":"branch","label":"Evaluates branch condition","line":76,"detail":"if (string.IsNullOrWhiteSpace(aiSettings.ApiKey) || aiSettings.ApiKey == \"PLACEHOLDER\")","conditionSummary":"string.IsNullOrWhiteSpace(aiSettings.ApiKey) || aiSettings.ApiKey == \"PLACEHOLDER\"","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-log_76","kind":"mapping","label":"Warn if AI API key missing or placeholder","line":76,"detail":"Console.WriteLine warning about missing AI API key","conditionSummary":"aiSettings.ApiKey is null/whitespace or equals 'PLACEHOLDER'","outcomeLabels":["log-warning","continue"],"visibility":"detail-only","confidence":0.7},{"id":"resilience-setup_81","kind":"mapping","label":"AI retry/resilience pipeline","line":81,"detail":"Adds 'ai-retry' pipeline with retry strategy: predicate-based handling for throttling/503/quota strings, exponential backoff, jitter, configurable MaxRetryAttempts and base Delay","visibility":"detail-only","confidence":0.7},{"id":"ai-client-registration_99","kind":"mapping","label":"Chat and embedding clients","line":99,"detail":"Registers Gemini chat client and embedding generator configured with AiSettings (ApiKey, ModelId, EmbeddingModel)","visibility":"detail-only","confidence":0.7},{"id":"service-registration_111","kind":"mapping","label":"Registers application and infrastructure services","line":111,"detail":"Registers multiple app-layer implementations (scoped/transient) like IKnowledgeService, IEpubReader, IBookStorageService, IEbookRepository, ISyncBroadcaster and authorization handler","visibility":"detail-only","confidence":0.7},{"id":"authorization-policy_126","kind":"mapping","label":"Adds ProUser policy","line":126,"detail":"Defines 'ProUser' policy adding ProUserRequirement","visibility":"detail-only","confidence":0.7},{"id":"return_134","kind":"return","label":"Returns IServiceCollection","line":134,"detail":"Returns the modified services collection","visibility":"detail-only","confidence":0.7},{"id":"addinfrastructure_return_134_4","kind":"return","label":"Returns result","line":134,"detail":"return services;","visibility":"detail-only","confidence":0.7}]},{"name":"Assembly","line":137,"endLine":138,"signature":"-> System.Reflection.Assembly","purpose":"Exposes the assembly containing the DependencyInjection type (convenience property for reflection/registration scenarios).","calls":[],"actions":[{"id":"return_137","kind":"return","label":"Return assembly","line":137,"detail":"Returns typeof(DependencyInjection).Assembly","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"IInfrastructureMarker","kind":"interface","line":140,"purpose":"Marker interface used to tag/identify the infrastructure assembly's registrations.","fields":[]},{"name":"InfrastructureMarker","kind":"model","line":141,"purpose":"Empty internal implementation of IInfrastructureMarker to register a concrete marker in DI.","fields":[]}],"serviceRegistrations":[{"line":36,"serviceType":"AppDbContext (DbContextFactory)","implementationType":"AppDbContext","lifetime":"scoped","factorySummary":"Adds AppDbContext factory using Npgsql when Postgres connection string is present"},{"line":41,"serviceType":"AppDbContext (DbContext)","implementationType":"AppDbContext","lifetime":"scoped","factorySummary":"Registers scoped AppDbContext using Npgsql"},{"line":47,"serviceType":"AppDbContext (DbContextFactory)","implementationType":"AppDbContext","lifetime":"scoped","factorySummary":"Adds AppDbContext factory using Sqlite fallback"},{"line":51,"serviceType":"AppDbContext (DbContext)","implementationType":"AppDbContext","lifetime":"scoped","factorySummary":"Registers scoped AppDbContext using Sqlite fallback"},{"line":57,"serviceType":"QdrantClient","implementationType":"QdrantClient","lifetime":"singleton","factorySummary":"Registers QdrantClient singleton with configured URL"},{"line":61,"serviceType":"IDriver","implementationType":"Neo4j.Driver (GraphDatabase.Driver)","lifetime":"singleton","factorySummary":"Registers Neo4j driver singleton with configured URL"},{"line":66,"serviceType":"Hangfire (storage/server)","implementationType":"Hangfire/Postgres storage","lifetime":"unknown","factorySummary":"Configures Hangfire to use Postgres storage and adds HangfireServer when Postgres available"},{"line":99,"serviceType":"ChatClient / GeminiChatClient","implementationType":"GeminiChatClient","lifetime":"unknown","factorySummary":"Registers Gemini chat client using AiSettings"},{"line":105,"serviceType":"EmbeddingGenerator / GeminiEmbeddingGenerator","implementationType":"GeminiEmbeddingGenerator","lifetime":"unknown","factorySummary":"Registers embedding generator using AiSettings"},{"line":112,"serviceType":"IKnowledgeService","implementationType":"KnowledgeService","lifetime":"scoped","factorySummary":"Application-layer knowledge service registration"},{"line":113,"serviceType":"IEpubReader","implementationType":"EpubReaderService","lifetime":"transient","factorySummary":"Ebook reading service registration"},{"line":118,"serviceType":"IBookStorageService","implementationType":"BookStorageService","lifetime":"scoped","factorySummary":"Scoped book storage service (MAUI-compatible lifetime)"},{"line":121,"serviceType":"IEbookRepository","implementationType":"EbookRepository","lifetime":"scoped","factorySummary":"Ebook repository matching DbContext lifetime"},{"line":124,"serviceType":"ISyncBroadcaster","implementationType":"SignalRSyncBroadcaster","lifetime":"scoped","factorySummary":"SignalR-based sync broadcaster registered scoped"},{"line":131,"serviceType":"IAuthorizationHandler","implementationType":"ProUserHandler","lifetime":"scoped","factorySummary":"Custom authorization handler for ProUser policy"},{"line":132,"serviceType":"IInfrastructureMarker","implementationType":"InfrastructureMarker","lifetime":"scoped","factorySummary":"Registers a marker instance to denote infrastructure assembly presence"}],"startupActions":[],"dependencies":["NexusReader.Infrastructure/Persistence/AppDbContext.cs","NexusReader.Infrastructure/Services/KnowledgeService.cs","NexusReader.Infrastructure/Services/EpubReaderService.cs","NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs","NexusReader.Infrastructure/Services/BookStorageService.cs","NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs","NexusReader.Infrastructure.Persistence/EbookRepository.cs","NexusReader.Application.Security/ProUserHandler.cs","NexusReader.Infrastructure/Configuration/AiSettings.cs","NexusReader.Infrastructure/Configuration/StripeSettings.cs"],"patterns":["Dependency Injection / Service Registration","Factory (DbContextFactory)","Resilience (retry pipeline)","Repository","Marker type registration"],"domainConcepts":["Ebook / Epub processing","AI (chat/embeddings)","Vector store (Qdrant)","Graph DB (Neo4j)","Background jobs (Hangfire)","Authorization (ProUser policy)"],"keyDetails":"File is the central infra DI composition point: chooses DB provider (Postgres vs Sqlite), configures Hangfire conditionally, registers external AI/vector/graph clients, installs an AI retry pipeline that inspects exception messages for throttling and service errors, warns when AI key is missing, and registers scoped services matching DbContext lifetime to prevent MAUI singleton issues.","orchestrationMethods":[{"name":"AddInfrastructure","line":31,"confidence":0.98,"reason":"Coordinates 12 downstream calls with 5 architectural actions.","actionKinds":["branch","fallback","mapping","return"],"evidencePaths":["NexusReader.Infrastructure/DependencyInjection.cs","NexusReader.Infrastructure/Persistence/AppDbContext.cs","NexusReader.Infrastructure/Persistence/AppDbContext.cs","NexusReader.Infrastructure/Persistence/AppDbContext.cs","NexusReader.Infrastructure/Persistence/AppDbContext.cs","NexusReader.Infrastructure/Services/KnowledgeService.cs"]}],"typedContracts":[{"name":"IInfrastructureMarker","kind":"interface","line":140,"fieldCount":0,"evidencePaths":["NexusReader.Infrastructure/DependencyInjection.cs"]},{"name":"InfrastructureMarker","kind":"model","line":141,"fieldCount":0,"evidencePaths":["NexusReader.Infrastructure/DependencyInjection.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"orchestration-method","label":"AddInfrastructure","line":31,"summary":"Coordinates 12 downstream calls with 5 architectural 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure__Helpers__ContentHasher.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Helpers__ContentHasher.cs.json
new file mode 100644
index 0000000..0dc005c
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Helpers__ContentHasher.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure/Helpers/ContentHasher.cs","purpose":"Utility for normalizing text content and producing a deterministic SHA-256 hex hash used by the infrastructure layer for content identity/lookup.","classification":{"role":"service","layer":"infrastructure","confidence":0.78,"evidence":["namespace NexusReader.Infrastructure.Helpers (file path indicates infrastructure helpers)","static helper class ContentHasher provides hashing/normalization utilities"]},"className":"ContentHasher","methods":[{"name":"ComputeHash","line":9,"endLine":22,"signature":"(input: string) -> string","purpose":"Normalizes input text, computes a SHA-256 hash of the UTF-8 bytes, and returns the lowercase hex string.","calls":[{"targetFile":"self","targetMethod":"Normalize","callLine":16,"paramSummary":"input string to normalize"}],"actions":[{"id":"computehash_branch_11_0","kind":"branch","label":"Evaluates branch condition","line":11,"detail":"if (string.IsNullOrWhiteSpace(input))","conditionSummary":"string.IsNullOrWhiteSpace(input)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_11","kind":"guard-clause","label":"Rejects empty/whitespace input","line":11,"detail":"if input is null/whitespace returns string.Empty","conditionSummary":"string.IsNullOrWhiteSpace(input)","outcomeLabels":["returns-empty","continue"],"visibility":"detail-only","confidence":0.7},{"id":"computehash_return_13_1","kind":"return","label":"Returns result","line":13,"detail":"return string.Empty;","visibility":"detail-only","confidence":0.7},{"id":"normalization-call_16","kind":"mapping","label":"Normalizes input before hashing","line":16,"detail":"calls Normalize(input)","visibility":"detail-only","confidence":0.7},{"id":"encoding_18","kind":"mapping","label":"Encodes normalized input to UTF-8 bytes","line":18,"detail":"Encoding.UTF8.GetBytes(normalizedInput)","visibility":"detail-only","confidence":0.7},{"id":"hash_19","kind":"mapping","label":"Computes SHA-256 hash","line":19,"detail":"SHA256.HashData(inputBytes)","visibility":"detail-only","confidence":0.7},{"id":"format_21","kind":"mapping","label":"Converts hash bytes to lowercase hex string","line":21,"detail":"Convert.ToHexString(hashBytes).ToLowerInvariant() and return","visibility":"detail-only","confidence":0.7},{"id":"return_21","kind":"return","label":"Returns hex hash or empty string","line":21,"detail":"final return of computed hash or early empty","visibility":"detail-only","confidence":0.7},{"id":"computehash_return_21_2","kind":"return","label":"Returns result","line":21,"detail":"return Convert.ToHexString(hashBytes).ToLowerInvariant();","visibility":"detail-only","confidence":0.7}]},{"name":"Normalize","line":24,"endLine":36,"signature":"(input: string) -> string","purpose":"Trims whitespace, collapses consecutive whitespace to single spaces, and lower-cases the text for stable semantic comparison.","calls":[],"actions":[{"id":"normalize_branch_26_0","kind":"branch","label":"Evaluates branch condition","line":26,"detail":"if (string.IsNullOrWhiteSpace(input))","conditionSummary":"string.IsNullOrWhiteSpace(input)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_26","kind":"guard-clause","label":"Rejects empty/whitespace input","line":26,"detail":"if input is null/whitespace returns string.Empty","conditionSummary":"string.IsNullOrWhiteSpace(input)","outcomeLabels":["returns-empty","continue"],"visibility":"detail-only","confidence":0.7},{"id":"normalize_return_28_1","kind":"return","label":"Returns result","line":28,"detail":"return string.Empty;","visibility":"detail-only","confidence":0.7},{"id":"transformation_32","kind":"mapping","label":"Trim and collapse whitespace","line":32,"detail":"Regex.Replace(input.Trim(), @\"\\s+\", \" \") collapses runs of whitespace to a single space","visibility":"detail-only","confidence":0.7},{"id":"transformation_35","kind":"mapping","label":"Lower-case normalization","line":35,"detail":"normalized.ToLowerInvariant() for case-insensitive comparisons","visibility":"detail-only","confidence":0.7},{"id":"return_35","kind":"return","label":"Returns normalized string","line":35,"detail":"final normalized string returned","visibility":"detail-only","confidence":0.7},{"id":"normalize_return_35_2","kind":"return","label":"Returns result","line":35,"detail":"return normalized.ToLowerInvariant();","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"ContentHasher","kind":"model","line":7,"purpose":"Static utility class providing content normalization and hashing helpers.","fields":[]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Utility","Hashing"],"domainConcepts":["content normalization","deterministic hashing"],"keyDetails":"Stable content hashing with whitespace collapsing and lower-casing to ensure semantically equivalent inputs map to the same SHA-256 hex string; 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure__Helpers__JsonRepairHelper.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Helpers__JsonRepairHelper.cs.json
new file mode 100644
index 0000000..db7f601
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Helpers__JsonRepairHelper.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs","purpose":"Provides a small infrastructure helper to repair/truncate malformed or truncated JSON text by pruning trailing garbage and auto-closing open strings/brackets/braces.","classification":{"role":"service","layer":"infrastructure","confidence":0.9,"evidence":["namespace NexusReader.Infrastructure.Helpers (line 4)","static helper class JsonRepairHelper with a Repair method (lines 6-9)","implementation performs JSON truncation repair and balancing logic (lines 13-64)"]},"className":"JsonRepairHelper","methods":[{"name":"Repair","line":8,"endLine":68,"signature":"(json: string) -> string","purpose":"Detects truncated/garbled JSON, prunes trailing garbage, and auto-closes open strings/brackets/braces to return a best-effort valid JSON string.","calls":[],"actions":[{"id":"repair_guard-clause_10_0","kind":"guard-clause","label":"Guards early exit or rejection path","line":10,"detail":"if (string.IsNullOrWhiteSpace(json)) return json;","conditionSummary":"string.IsNullOrWhiteSpace(json)","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"guard-clause_10","kind":"guard-clause","label":"Rejects empty input","line":10,"detail":"if (string.IsNullOrWhiteSpace(json)) return json;","conditionSummary":"string.IsNullOrWhiteSpace(json)","outcomeLabels":["return original (null/empty/whitespace)","continue"],"visibility":"detail-only","confidence":0.7},{"id":"transformation_11","kind":"mapping","label":"Trim input","line":11,"detail":"json = json.Trim();","visibility":"detail-only","confidence":0.7},{"id":"branch_14","kind":"branch","label":"Check for definite truncation","line":14,"detail":"if (!json.EndsWith(\"}\") && !json.EndsWith(\"]\")) { ... }","conditionSummary":"not ending with '}' and not ending with ']'","outcomeLabels":["repair path (likely truncated)","return original (already closed)"],"visibility":"detail-only","confidence":0.7},{"id":"repair_branch_14_1","kind":"branch","label":"Evaluates branch condition","line":14,"detail":"if (!json.EndsWith(\"}\") && !json.EndsWith(\"]\"))","conditionSummary":"!json.EndsWith(\"}\") && !json.EndsWith(\"]\")","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"computation_18","kind":"mapping","label":"Find last likely clean delimiter","line":18,"detail":"int lastGoodComma = json.LastIndexOf(','); 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continue; }","conditionSummary":"escaped","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"repair_guard-clause_38_5","kind":"guard-clause","label":"Guards early exit or rejection path","line":38,"detail":"if (c == '\\\\') { escaped = true; continue; }","conditionSummary":"c == '\\\\'","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"repair_guard-clause_39_6","kind":"guard-clause","label":"Guards early exit or rejection path","line":39,"detail":"if (c == '\"') { inString = !inString; continue; }","conditionSummary":"c == '\"'","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"repair_guard-clause_40_7","kind":"guard-clause","label":"Guards early exit or rejection path","line":40,"detail":"if (inString) continue;","conditionSummary":"inString","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"repair_branch_42_8","kind":"branch","label":"Evaluates branch condition","line":42,"detail":"if (c == '{' || c == '[') stack.Push(c);","conditionSummary":"c == '{' || c == '[') stack.Push(c","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"repair_branch_43_9","kind":"branch","label":"Evaluates branch condition","line":43,"detail":"else if (c == '}' || c == ']')","conditionSummary":"c == '}' || c == ']'","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"repair_fallback_43_10","kind":"fallback","label":"Falls back to alternate path","line":43,"detail":"else if (c == '}' || c == ']')","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"repair_branch_45_11","kind":"branch","label":"Evaluates branch condition","line":45,"detail":"if (stack.Count > 0)","conditionSummary":"stack.Count > 0","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"repair_branch_48_12","kind":"branch","label":"Evaluates branch condition","line":48,"detail":"if ((c == '}' && last == '{') || (c == ']' && last == '['))","conditionSummary":"(c == '}' && last == '{') || (c == ']' && last == '[')","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"construction_54","kind":"mapping","label":"Build repaired output","line":54,"detail":"var builder = new StringBuilder(json); 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure__Identity__TokenLimitHandler.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Identity__TokenLimitHandler.cs.json
new file mode 100644
index 0000000..025a9bc
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Identity__TokenLimitHandler.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure/Identity/TokenLimitHandler.cs","purpose":"Authorization handler that verifies whether the current user has available AI tokens or an unlimited token subscription, using the application's DbContext and Identity user data.","classification":{"role":"handler","layer":"infrastructure","confidence":0.8,"evidence":["Domain/entity pattern","Class inherits Microsoft.AspNetCore.Authorization.AuthorizationHandler<TokenLimitRequirement>","Namespace NexusReader.Infrastructure.Identity and references to AppDbContext and NexusUser","Implements authorization logic (context.Succeed)"]},"className":"TokenLimitHandler","methods":[{"name":"TokenLimitHandler","line":18,"endLine":22,"signature":"(dbContextFactory: IDbContextFactory<AppDbContext>, userManager: UserManager<NexusUser>) -> void","purpose":"Constructor: captures DbContext factory and UserManager dependencies for use by the handler.","calls":[],"actions":[{"id":"assignment_20","kind":"mapping","label":"Store dependencies","line":20,"detail":"_dbContextFactory = dbContextFactory; 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure__Identity__TokenLimitRequirement.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Identity__TokenLimitRequirement.cs.json
new file mode 100644
index 0000000..39d2dd0
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Identity__TokenLimitRequirement.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs","purpose":"Defines an authorization requirement used to enforce per-user AI token limits (marker type for policy-based authorization).","classification":{"role":"middleware","layer":"infrastructure","confidence":0.9,"evidence":["Domain/entity pattern","Implements Microsoft.AspNetCore.Authorization.IAuthorizationRequirement","Located in NexusReader.Infrastructure.Identity namespace and file path"]},"className":"TokenLimitRequirement","methods":[],"types":[{"name":"TokenLimitRequirement","kind":"model","line":8,"purpose":"Marker authorization requirement indicating a check for a user's AI token usage/limit.","fields":[]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Policy-based Authorization","Marker Requirement"],"domainConcepts":["AI token limit","Authorization/Policy"],"keyDetails":"Empty marker class implementing IAuthorizationRequirement; runtime behavior is provided by an authorization handler elsewhere that will evaluate token usage against limits.","orchestrationMethods":[],"typedContracts":[{"name":"TokenLimitRequirement","kind":"model","line":8,"fieldCount":0,"evidencePaths":["NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"TokenLimitRequirement","line":8,"summary":"model with 0 fields.","confidence":0.8,"evidencePaths":["NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure__NexusReader.Infrastructure.csproj.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure__NexusReader.Infrastructure.csproj.json
new file mode 100644
index 0000000..6d50244
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure__NexusReader.Infrastructure.csproj.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure/NexusReader.Infrastructure.csproj","purpose":"MSBuild project file that defines the Infrastructure project: references Application and Data projects, declares framework and a set of NuGet packages required for runtime concerns like AI, persistence, background jobs, resilience, graph DB, vector DB, and payments.","classification":{"role":"unknown","layer":"infrastructure","confidence":0.9,"evidence":["ProjectReference entries to ../NexusReader.Application and ../NexusReader.Data (lines 4-5)","PackageReference entries for Hangfire, EF Core, Neo4j, Qdrant, Polly, Stripe, AI/Tokenizers (lines 13-34)","FrameworkReference to Microsoft.AspNetCore.App (line 9)"]},"className":"","methods":[],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["..\\NexusReader.Application\\NexusReader.Application.csproj","..\\NexusReader.Data\\NexusReader.Data.csproj"],"patterns":["Background Jobs (Hangfire)","Resilience/Retry (Polly)","ORM/Repository (EF Core, Npgsql)","Graph DB integration (Neo4j)","Vector DB/Embedding (Qdrant)","AI/ML integration (Gemini, ML Tokenizers)","Payment integration (Stripe)"],"domainConcepts":["Background processing","Resilience and HTTP retries","Vector search / embeddings","Graph relationships","Authentication/Identity","Payments","Ebook processing"],"keyDetails":"TargetFramework: net10.0 (line 37); ImplicitUsings enabled and Nullable enabled (lines 38-39). Project wires Application and Data projects and brings runtime packages for AI, persistence, background jobs, graph DB, vector DB, resilience, tokenization, and payments.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure__Persistence__EbookRepository.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Persistence__EbookRepository.cs.json
new file mode 100644
index 0000000..cefd4e5
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Persistence__EbookRepository.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure/Persistence/EbookRepository.cs","purpose":"EF Core repository implementing IEbookRepository; provides data access for Author and Ebook entities using an AppDbContext, with provider-aware search logic and basic persistence operations.","classification":{"role":"repository","layer":"infrastructure","confidence":0.9,"evidence":["Repository naming pattern","namespace NexusReader.Infrastructure.Persistence","implements IEbookRepository and uses AppDbContext","contains Add/Find/Save persistence methods interacting with DbContext"]},"className":"EbookRepository","methods":[{"name":"FindAuthorByNameAsync","line":22,"endLine":36,"signature":"(name: string, cancellationToken: CancellationToken = default) -> Task<Author?>","purpose":"Finds an Author by name using a case-insensitive comparison; uses PostgreSQL ILike when running on Npgsql, otherwise falls back to ToLower string comparison.","calls":[{"targetFile":"unknown","targetMethod":"Database.IsNpgsql","callLine":26,"paramSummary":"none; checks provider"},{"targetFile":"NexusReader.Data.Persistence/AppDbContext.cs","targetMethod":"Authors.FirstOrDefaultAsync","callLine":28,"paramSummary":"predicate: EF.Functions.ILike(a.Name, name); cancellationToken"},{"targetFile":"NexusReader.Data.Persistence/AppDbContext.cs","targetMethod":"Authors.FirstOrDefaultAsync","callLine":32,"paramSummary":"predicate: a.Name.ToLower() == name.ToLower(); cancellationToken"}],"actions":[{"id":"findauthorbynameasync_repository-read_22_0","kind":"repository-read","label":"Reads repository or persistence state","line":22,"detail":"public async Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default)","visibility":"secondary-visible","confidence":0.86},{"id":"findauthorbynameasync_branch_26_1","kind":"branch","label":"Evaluates branch condition","line":26,"detail":"if (_context.Database.IsNpgsql())","conditionSummary":"_context.Database.IsNpgsql()","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_26","kind":"branch","label":"Provider-aware search","line":26,"detail":"Chooses EF.Functions.ILike when on Npgsql provider; 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure__RealTime__SignalRSyncBroadcaster.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure__RealTime__SignalRSyncBroadcaster.cs.json
new file mode 100644
index 0000000..11b5613
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure__RealTime__SignalRSyncBroadcaster.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs","purpose":"Implements a SignalR-backed ISyncBroadcaster to push sync/progress updates (general progress and ingestion progress) to all connected devices of a user via HubContext.","classification":{"role":"integration-client","layer":"infrastructure","confidence":0.9,"evidence":["Implements ISyncBroadcaster (NexusReader.Application.Abstractions.Messaging)","Uses IHubContext<SyncHub> (Microsoft.AspNetCore.SignalR) to send updates","Namespace: NexusReader.Infrastructure.RealTime"]},"className":"SignalRSyncBroadcaster","methods":[{"name":"SignalRSyncBroadcaster","line":15,"endLine":18,"signature":"(hubContext: IHubContext<SyncHub>) -> ctor","purpose":"Constructs broadcaster and stores HubContext for sending SignalR messages.","calls":[],"actions":[{"id":"field-assignment_17","kind":"mapping","label":"Stores hub context","line":17,"detail":"_hubContext = hubContext","visibility":"detail-only","confidence":0.7}]},{"name":"BroadcastProgressAsync","line":21,"endLine":46,"signature":"(userId: string, pageId: string, timestamp: DateTime, excludedConnectionId: string?, cancellationToken: CancellationToken) -> Task","purpose":"Broadcasts a 'ProgressUpdated' message (pageId + timestamp) to all connections for a given user; 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure__RealTime__SyncHub.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure__RealTime__SyncHub.cs.json
new file mode 100644
index 0000000..763df35
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure__RealTime__SyncHub.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure/RealTime/SyncHub.cs","purpose":"Defines a SignalR Hub (SyncHub) that handles real-time reading-progress updates and per-user connection grouping; it forwards progress updates into the application via MediatR.","classification":{"role":"endpoint","layer":"infrastructure","confidence":0.9,"evidence":["Command pattern","class derives from Microsoft.AspNetCore.SignalR.Hub","namespace NexusReader.Infrastructure.RealTime","[Authorize] attribute applied to the hub"]},"className":"SyncHub","methods":[{"name":"SyncHub","line":14,"endLine":17,"signature":"(mediator: IMediator) -> void","purpose":"Constructor that receives and stores an IMediator instance for dispatching application commands.","calls":[],"actions":[{"id":"dependency-injection_14","kind":"mapping","label":"Depends on IMediator","line":14,"detail":"Constructor injection of MediatR mediator","visibility":"detail-only","confidence":0.7},{"id":"assignment_16","kind":"mapping","label":"Stores mediator","line":16,"detail":"_mediator = mediator","visibility":"detail-only","confidence":0.7}]},{"name":"UpdateProgress","line":19,"endLine":26,"signature":"(pageId: string, ebookId: Guid, progress: double, chapterTitle: string? , chapterIndex: int) -> Task","purpose":"Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.","calls":[{"targetFile":"NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs","targetMethod":"UpdateReadingProgressCommand (ctor)","callLine":24,"paramSummary":"new UpdateReadingProgressCommand(pageId, userId, ebookId, progress, chapterTitle, chapterIndex, Context.ConnectionId)"}],"actions":[{"id":"updateprogress_repository-read_21_0","kind":"repository-read","label":"Reads repository or persistence state","line":21,"detail":"var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;","visibility":"secondary-visible","confidence":0.86},{"id":"external-call_21","kind":"external-call","label":"Reads user id from connection context","line":21,"detail":"Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value","visibility":"detail-only","confidence":0.7},{"id":"guard-clause_21","kind":"guard-clause","label":"Requires authenticated user id","line":21,"detail":"if (userId != null) await _mediator.Send(new UpdateReadingProgressCommand(...));","conditionSummary":"userId != null","outcomeLabels":["forward command","no-op"],"visibility":"detail-only","confidence":0.7},{"id":"updateprogress_branch_22_1","kind":"branch","label":"Evaluates branch condition","line":22,"detail":"if (userId != null)","conditionSummary":"userId != null","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"external-call_24","kind":"external-call","label":"Dispatches command to application layer","line":24,"detail":"_mediator.Send(...) 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__BillingService.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__BillingService.cs.json
new file mode 100644
index 0000000..2effdb9
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__BillingService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure/Services/BillingService.cs","purpose":"Infrastructure billing service that reacts to Stripe subscription events, maps Stripe product IDs to internal subscription plans and updates NexusUser records accordingly.","classification":{"role":"service","layer":"infrastructure","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Class name BillingService in NexusReader.Infrastructure.Services","Implements IBillingService and uses IDbContextFactory<AppDbContext>, UserManager<NexusUser>, StripeSettings"]},"className":"BillingService","methods":[{"name":"BillingService","line":20,"endLine":30,"signature":"(dbContextFactory: IDbContextFactory<AppDbContext>, userManager: UserManager<NexusUser>, stripeSettings: IOptions<StripeSettings>, logger: ILogger<BillingService>) -> BillingService","purpose":"Constructor; captures and stores DI dependencies (db context factory, user manager, stripe settings, 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__BookStorageService.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__BookStorageService.cs.json
new file mode 100644
index 0000000..cac83c0
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__BookStorageService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure/Services/BookStorageService.cs","purpose":"Infrastructure service that saves ebook files and cover images to the local web root, returning web-relative paths suitable for serving from the web app.","classification":{"role":"service","layer":"infrastructure","confidence":0.95,"evidence":["Service naming pattern","Application/service path heuristic","Namespace NexusReader.Infrastructure.Services","Implements IBookStorageService (application abstraction)","Performs filesystem operations under WebRootPath"]},"className":"BookStorageService","methods":[{"name":"BookStorageService","line":14,"endLine":17,"signature":"(environment: IWebHostEnvironment) -> BookStorageService","purpose":"Constructor that stores the injected IWebHostEnvironment for later use (web root path).","calls":[],"actions":[{"id":"init_16","kind":"mapping","label":"Stores IWebHostEnvironment","line":16,"detail":"_environment = 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missing","outcomeLabels":["create-directory","continue"],"visibility":"detail-only","confidence":0.7},{"id":"transformation_30","kind":"mapping","label":"Generate unique filename","line":30,"detail":"var uniqueFileName = $\"{Guid.NewGuid()}_{fileName}\"","visibility":"detail-only","confidence":0.7},{"id":"persistence-write_33","kind":"mapping","label":"Create file and copy stream contents","line":33,"detail":"using FileStream(filePath, FileMode.Create) and await data.CopyToAsync(fileStream)","visibility":"detail-only","confidence":0.7},{"id":"return_40","kind":"return","label":"Return web-relative uploads path","line":40,"detail":"return \"uploads/{uniqueFileName}\" (uses forward slashes to avoid Windows backslash issue)","visibility":"detail-only","confidence":0.7},{"id":"saveebookasync_return_40_0","kind":"return","label":"Returns result","line":40,"detail":"return $\"uploads/{uniqueFileName}\";","visibility":"detail-only","confidence":0.7}]},{"name":"SaveCoverAsync","line":43,"endLine":48,"signature":"(data: byte[], fileName: string) -> Task<string?>","purpose":"Wrapper overload that validates byte[] input and delegates to SaveCoverAsync(Stream,...) or returns null for empty input.","calls":[{"targetFile":"self","targetMethod":"SaveCoverAsync","callLine":47,"paramSummary":"stream (MemoryStream over data), fileName"}],"actions":[{"id":"savecoverasync_guard-clause_45_0","kind":"guard-clause","label":"Guards early exit or rejection path","line":45,"detail":"if (data == null || data.Length == 0) return null;","conditionSummary":"data == null || data.Length == 0","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"guard-clause_45","kind":"guard-clause","label":"Return null for empty data","line":45,"detail":"if (data == null || data.Length == 0) return null","conditionSummary":"data == null || data.Length == 0","outcomeLabels":["null-return","continue"],"visibility":"detail-only","confidence":0.7},{"id":"mapping_46","kind":"mapping","label":"Wraps byte[] into MemoryStream","line":46,"detail":"using var stream = new MemoryStream(data)","visibility":"detail-only","confidence":0.7},{"id":"delegation_47","kind":"mapping","label":"Delegates to stream-based SaveCoverAsync","line":47,"detail":"return await SaveCoverAsync(stream, fileName)","visibility":"detail-only","confidence":0.7},{"id":"savecoverasync_return_47_1","kind":"return","label":"Returns result","line":47,"detail":"return await SaveCoverAsync(stream, fileName);","visibility":"detail-only","confidence":0.7}]},{"name":"SaveCoverAsync","line":50,"endLine":64,"signature":"(data: Stream, fileName: string) -> Task<string?>","purpose":"Saves a cover image stream to the covers folder under web root with a GUID-prefixed filename and returns a web-relative path (or string).","calls":[{"targetFile":"self","targetMethod":"EnsureDirectoryExists","callLine":53,"paramSummary":"coversFolder (path combined from WebRootPath and 'covers')"}],"actions":[{"id":"io_52","kind":"mapping","label":"Compute covers folder path","line":52,"detail":"var coversFolder = Path.Combine(_environment.WebRootPath, \"covers\")","visibility":"detail-only","confidence":0.7},{"id":"guard-clause_53","kind":"guard-clause","label":"Ensure covers directory exists","line":53,"detail":"EnsureDirectoryExists(coversFolder)","conditionSummary":"directory missing","outcomeLabels":["create-directory","continue"],"visibility":"detail-only","confidence":0.7},{"id":"transformation_55","kind":"mapping","label":"Generate unique filename","line":55,"detail":"var uniqueFileName = $\"{Guid.NewGuid()}_{fileName}\"","visibility":"detail-only","confidence":0.7},{"id":"persistence-write_58","kind":"mapping","label":"Create file and copy stream contents","line":58,"detail":"using FileStream(filePath, FileMode.Create) and await data.CopyToAsync(fileStream)","visibility":"detail-only","confidence":0.7},{"id":"return_63","kind":"return","label":"Return web-relative covers path","line":63,"detail":"return \"covers/{uniqueFileName}\"","visibility":"detail-only","confidence":0.7},{"id":"savecoverasync_return_63_0","kind":"return","label":"Returns result","line":63,"detail":"return $\"covers/{uniqueFileName}\";","visibility":"detail-only","confidence":0.7}]},{"name":"EnsureDirectoryExists","line":66,"endLine":72,"signature":"(path: string) -> void","purpose":"Checks for directory existence and creates it if missing.","calls":[],"actions":[{"id":"guard-clause_68","kind":"guard-clause","label":"Check directory existence","line":68,"detail":"if (!Directory.Exists(path)) { Directory.CreateDirectory(path); }","conditionSummary":"!Directory.Exists(path)","outcomeLabels":["create-directory","noop"],"visibility":"detail-only","confidence":0.7},{"id":"ensuredirectoryexists_branch_68_0","kind":"branch","label":"Evaluates branch condition","line":68,"detail":"if (!Directory.Exists(path))","conditionSummary":"!Directory.Exists(path)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"persistence-write_70","kind":"mapping","label":"Create directory","line":70,"detail":"Directory.CreateDirectory(path)","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"BookStorageService","kind":"model","line":10,"purpose":"Concrete infrastructure implementation of IBookStorageService that persists ebook and cover bytes to filesystem under the web root.","fields":[{"name":"_environment","type":"IWebHostEnvironment","required":true,"line":12,"description":"Injected web host environment used to resolve WebRootPath for storage"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Abstractions.Services (IBookStorageService)","Microsoft.AspNetCore.Hosting (IWebHostEnvironment)"],"patterns":["Storage Service","Filesystem Persistence","Wrapper Overload Delegation"],"domainConcepts":["Book (ebook file)","Cover (cover image)","Web-root relative static asset paths (uploads, covers)"],"keyDetails":"Writes files under WebRootPath/uploads and WebRootPath/covers using GUID-prefixed filenames; returns web-relative paths using forward slashes to avoid Windows backslash issues; Validate empty cover bytes in byte[] overload and return null.","orchestrationMethods":[{"name":"EnsureDirectoryExists","line":66,"confidence":0.57,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["guard-clause","branch","mapping"],"evidencePaths":["NexusReader.Infrastructure/Services/BookStorageService.cs"]}],"typedContracts":[{"name":"BookStorageService","kind":"model","line":10,"fieldCount":1,"evidencePaths":["NexusReader.Infrastructure/Services/BookStorageService.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"orchestration-method","label":"EnsureDirectoryExists","line":66,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.57,"evidencePaths":["NexusReader.Infrastructure/Services/BookStorageService.cs"]},{"kind":"typed-contract","label":"BookStorageService","line":10,"summary":"model with 1 fields.","confidence":0.8,"evidencePaths":["NexusReader.Infrastructure/Services/BookStorageService.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__EpubMetadataExtractor.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__EpubMetadataExtractor.cs.json
new file mode 100644
index 0000000..a93324e
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__EpubMetadataExtractor.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs","purpose":"Infrastructure service that reads an EPUB stream to extract title, author, description and cover image for pre-ingestion preview without persisting data.","classification":{"role":"service","layer":"infrastructure","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","namespace NexusReader.Infrastructure.Services","class implements IEpubMetadataExtractor and uses VersOne.Epub to open/read EPUB streams","Method extracts metadata for UI ingestion preview (no persistence)"]},"className":"EpubMetadataExtractor","methods":[{"name":"ExtractMetadataAsync","line":15,"endLine":30,"signature":"(epubStream: Stream) -> Task<Result<LocalEpubMetadata>>","purpose":"Opens an EPUB stream, reads title/author/description/cover and returns a Result-wrapped LocalEpubMetadata or an error on failure.","calls":[{"targetFile":"unknown","targetMethod":"EpubReader.OpenBookAsync","callLine":19,"paramSummary":"epubStream (Stream) to open the EPUB book asynchronously"},{"targetFile":"unknown","targetMethod":"EpubBookReference.ReadCoverAsync","callLine":23,"paramSummary":"no params; reads cover image bytes from opened book reference"}],"actions":[{"id":"try-catch_17","kind":"mapping","label":"Wrap extraction to catch any exception and convert to Result.Fail","line":17,"detail":"try { ... } catch (Exception ex) { return Result.Fail(...).CausedBy(ex); }","visibility":"detail-only","confidence":0.7},{"id":"resource-disposal_19","kind":"mapping","label":"Dispose opened EPUB book reference after use","line":19,"detail":"using var bookRef = await EpubReader.OpenBookAsync(epubStream); ensures bookRef disposal","visibility":"detail-only","confidence":0.7},{"id":"guard-clause_20","kind":"guard-clause","label":"Default title when null","line":20,"detail":"var title = bookRef.Title ?? \"Unknown Title\";","conditionSummary":"bookRef.Title == null","outcomeLabels":["use 'Unknown Title'","use actual title"],"visibility":"detail-only","confidence":0.7},{"id":"guard-clause_21","kind":"guard-clause","label":"Default author when null","line":21,"detail":"var author = bookRef.Author ?? \"Unknown Author\";","conditionSummary":"bookRef.Author == null","outcomeLabels":["use 'Unknown Author'","use actual author"],"visibility":"detail-only","confidence":0.7},{"id":"external-call_23","kind":"external-call","label":"Read cover image bytes","line":23,"detail":"await bookRef.ReadCoverAsync(); may return null or byte[]","visibility":"detail-only","confidence":0.7},{"id":"mapping_24","kind":"mapping","label":"Compose LocalEpubMetadata DTO","line":24,"detail":"new LocalEpubMetadata { Title = title, Author = author, CoverImage = cover, Description = description }","visibility":"detail-only","confidence":0.7},{"id":"return-success_24","kind":"mapping","label":"Return successful Result with metadata","line":24,"detail":"Result.Ok(LocalEpubMetadata)","visibility":"detail-only","confidence":0.7},{"id":"extractmetadataasync_return_24_0","kind":"return","label":"Returns result","line":24,"detail":"return Result.Ok(new LocalEpubMetadata { Title = title, Author = author, CoverImage = cover, Description = description });","visibility":"detail-only","confidence":0.7},{"id":"return-failure_28","kind":"mapping","label":"Return failure Result on exception","line":28,"detail":"Result.Fail(new Error(...)).CausedBy(ex)","visibility":"detail-only","confidence":0.7},{"id":"extractmetadataasync_return_28_1","kind":"return","label":"Returns result","line":28,"detail":"return Result.Fail(new Error($\"Failed to extract EPUB metadata locally: {ex.Message}\").CausedBy(ex));","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Abstractions.Services (IEpubMetadataExtractor)","NexusReader.Application.Queries.Reader (LocalEpubMetadata)","VersOne.Epub (EpubReader / bookRef)"],"patterns":["Infrastructure Service","Adapter (wraps third-party EPUB lib for app)"],"domainConcepts":["Epub","Metadata","Ingestion/Preview"],"keyDetails":"Synchronous orchestration is simple: open EPUB, map fields with null-coalescing defaults, read cover bytes, return Result.Ok on success or Result.Fail with causal exception on any error. 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__EpubReaderService.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__EpubReaderService.cs.json
new file mode 100644
index 0000000..98d7a55
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__EpubReaderService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure/Services/EpubReaderService.cs","purpose":"Service that locates EPUB files recorded in the database, parses a requested chapter, splits the chapter into sanitized content blocks, injects AI-action trigger blocks at thresholds, and returns a ReaderPageViewModel for consumption by the application.","classification":{"role":"service","layer":"infrastructure","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Namespace NexusReader.Infrastructure.Services","Implements IEpubReader and uses IDbContextFactory<AppDbContext>","Performs file resolution, DB lookup and EPUB parsing (infrastructure-level I/O and integration)"]},"className":"EpubReaderService","methods":[{"name":"GetEpubContentAsync","line":30,"endLine":118,"signature":"(ebookId: Guid, chapterIndex: int, userId: string? = null, cancellationToken: CancellationToken = default) -> Task<Result<ReaderPageViewModel>>","purpose":"Primary orchestration method: 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html"},{"targetFile":"self","targetMethod":"CountWords","callLine":96,"paramSummary":"sanitized paragraph text"},{"targetFile":"self","targetMethod":"CreateAiTrigger","callLine":101,"paramSummary":"generated trigger id string"},{"targetFile":"NexusReader.Application/Queries/Reader","targetMethod":"ReaderPageViewModel.ctor","callLine":111,"paramSummary":"blocks, chapterIndex, readingOrder.Count, chapterTitle, ebook.Id"},{"targetFile":"unknown","targetMethod":"ILogger.LogError","callLine":57,"paramSummary":"error message with ebookId, ebook.FilePath"},{"targetFile":"unknown","targetMethod":"ILogger.LogError","callLine":115,"paramSummary":"exception and ebookId"}],"actions":[{"id":"error-handling_36","kind":"mapping","label":"Top-level try/catch","line":36,"detail":"Catches Exception, logs, and returns Result.Fail with wrapped Error","visibility":"detail-only","confidence":0.7},{"id":"db-read_39","kind":"mapping","label":"Load ebook record","line":39,"detail":"Reads Ebooks DbSet with user guard in predicate","visibility":"detail-only","confidence":0.7},{"id":"getepubcontentasync_repository-read_41_0","kind":"repository-read","label":"Reads repository or persistence state","line":41,"detail":"var ebook = await context.Ebooks","visibility":"secondary-visible","confidence":0.86},{"id":"guard-clause_47","kind":"guard-clause","label":"Ebook existence check","line":47,"detail":"Return Result.Fail if not found","conditionSummary":"ebook == null","outcomeLabels":["fail","continue"],"visibility":"detail-only","confidence":0.7},{"id":"getepubcontentasync_branch_47_1","kind":"branch","label":"Evaluates branch condition","line":47,"detail":"if (ebook == null)","conditionSummary":"ebook == null","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"getepubcontentasync_return_49_2","kind":"return","label":"Returns result","line":49,"detail":"return Result.Fail($\"Ebook '{ebookId}' not found for user '{userId}'.\");","visibility":"detail-only","confidence":0.7},{"id":"file-check_54","kind":"mapping","label":"Resolve and validate EPUB file path","line":54,"detail":"ResolvePath then File.Exists; logs and fails if missing","visibility":"detail-only","confidence":0.7},{"id":"getepubcontentasync_branch_55_3","kind":"branch","label":"Evaluates branch condition","line":55,"detail":"if (fullPath == null || !File.Exists(fullPath))","conditionSummary":"fullPath == null || !File.Exists(fullPath)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"getepubcontentasync_log_57_4","kind":"log","label":"Logs runtime state","line":57,"detail":"_logger.LogError(\"EPUB file for ebook {EbookId} not found at path '{FilePath}'.\", ebookId, ebook.FilePath);","visibility":"secondary-visible","confidence":0.92},{"id":"getepubcontentasync_return_58_5","kind":"return","label":"Returns result","line":58,"detail":"return Result.Fail($\"The EPUB file for this book could not be found on the server.\");","visibility":"detail-only","confidence":0.7},{"id":"external-call_62","kind":"external-call","label":"Open EPUB and read reading order","line":62,"detail":"Calls EpubReader.OpenBookAsync and GetReadingOrder; fails if no readable content","visibility":"detail-only","confidence":0.7},{"id":"getepubcontentasync_branch_65_6","kind":"branch","label":"Evaluates branch condition","line":65,"detail":"if (readingOrder == null || !readingOrder.Any())","conditionSummary":"readingOrder == null || !readingOrder.Any()","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_65","kind":"guard-clause","label":"ReadingOrder empty check","line":65,"conditionSummary":"readingOrder == null || !readingOrder.Any()","outcomeLabels":["fail","continue"],"visibility":"detail-only","confidence":0.7},{"id":"getepubcontentasync_return_67_7","kind":"return","label":"Returns result","line":67,"detail":"return Result.Fail(\"The EPUB has no readable content files in ReadingOrder.\");","visibility":"detail-only","confidence":0.7},{"id":"index-sanitization_70","kind":"mapping","label":"Clamp chapterIndex","line":70,"detail":"If invalid, set chapterIndex = 0","conditionSummary":"chapterIndex out of range","outcomeLabels":["reset to 0","keep"],"visibility":"detail-only","confidence":0.7},{"id":"getepubcontentasync_branch_70_8","kind":"branch","label":"Evaluates branch condition","line":70,"detail":"if (chapterIndex < 0 || chapterIndex >= readingOrder.Count)","conditionSummary":"chapterIndex < 0 || chapterIndex >= readingOrder.Count","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"navigation-lookup_76","kind":"mapping","label":"Find chapter title","line":76,"detail":"Resolve title from navigation or fallback to filename or 'Chapter N'","visibility":"detail-only","confidence":0.7},{"id":"getepubcontentasync_repository-read_77_9","kind":"repository-read","label":"Reads repository or persistence state","line":77,"detail":"var chapterTitle = FindTitleInNavigation(navigation, chapterRef.FilePath)","visibility":"secondary-visible","confidence":0.86},{"id":"loop_89","kind":"loop","label":"Paragraph -> block building loop","line":89,"detail":"Iterates paragraphs, sanitizes, counts words, adds TextSegmentBlock and injects AI triggers when threshold reached","visibility":"detail-only","confidence":0.7},{"id":"getepubcontentasync_loop_89_10","kind":"loop","label":"Repeats work over a collection or condition","line":89,"detail":"foreach (var p in paragraphs)","conditionSummary":"var p in paragraphs","loopTargetLine":89,"loopExitSummary":"Leaves the loop when the condition no longer holds.","visibility":"primary-visible","confidence":0.86},{"id":"getepubcontentasync_guard-clause_92_11","kind":"guard-clause","label":"Guards early exit or rejection path","line":92,"detail":"if (string.IsNullOrWhiteSpace(sanitizedContent)) continue;","conditionSummary":"string.IsNullOrWhiteSpace(sanitizedContent)","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"getepubcontentasync_branch_99_12","kind":"branch","label":"Evaluates branch condition","line":99,"detail":"if (totalWordCount >= WordThreshold)","conditionSummary":"totalWordCount >= WordThreshold","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"threshold-trigger_99","kind":"mapping","label":"Inject AI trigger on WordThreshold","line":99,"detail":"When cumulative words >= WordThreshold, add CreateAiTrigger and reset counter","visibility":"detail-only","confidence":0.7},{"id":"post-condition_106","kind":"mapping","label":"Ensure trailing AI trigger","line":106,"detail":"If last block is not AiActionTriggerBlock, append one","visibility":"detail-only","confidence":0.7},{"id":"getepubcontentasync_branch_106_13","kind":"branch","label":"Evaluates branch condition","line":106,"detail":"if (blocks.Any() && blocks.Last() is not AiActionTriggerBlock)","conditionSummary":"blocks.Any() && blocks.Last() is not AiActionTriggerBlock","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"getepubcontentasync_return_111_14","kind":"return","label":"Returns result","line":111,"detail":"return Result.Ok(new ReaderPageViewModel(blocks, chapterIndex, readingOrder.Count, chapterTitle, ebook.Id));","visibility":"detail-only","confidence":0.7},{"id":"getepubcontentasync_log_115_15","kind":"log","label":"Logs runtime state","line":115,"detail":"_logger.LogError(ex, \"Failed to process EPUB for ebook {EbookId}.\", ebookId);","visibility":"secondary-visible","confidence":0.92},{"id":"getepubcontentasync_return_116_16","kind":"return","label":"Returns result","line":116,"detail":"return Result.Fail(new Error($\"Failed to process EPUB: {ex.Message}\").CausedBy(ex));","visibility":"detail-only","confidence":0.7}]},{"name":"ResolvePath","line":124,"endLine":143,"signature":"(relativePath: string) -> string?","purpose":"Resolve a web-relative storage path to an absolute filesystem path by searching upward from the app base directory and trying both production (wwwroot) and development (src/NexusReader.Web/wwwroot) layouts.","calls":[{"targetFile":"unknown","targetMethod":"Path.Combine","callLine":132,"paramSummary":"currentDir.FullName, \"wwwroot\", normalized"},{"targetFile":"unknown","targetMethod":"File.Exists","callLine":133,"paramSummary":"candidate"},{"targetFile":"unknown","targetMethod":"Path.Combine","callLine":136,"paramSummary":"currentDir.FullName, \"src\", \"NexusReader.Web\", \"wwwroot\", normalized"},{"targetFile":"unknown","targetMethod":"File.Exists","callLine":137,"paramSummary":"devCandidate"}],"actions":[{"id":"normalization_126","kind":"mapping","label":"Normalize separators","line":126,"detail":"Replace forward slashes with OS directory separator","visibility":"detail-only","confidence":0.7},{"id":"loop_129","kind":"loop","label":"Search upward through parent directories","line":129,"detail":"While currentDir != null try candidate and devCandidate paths; return first match","visibility":"detail-only","confidence":0.7},{"id":"resolvepath_loop_130_0","kind":"loop","label":"Repeats work over a collection or condition","line":130,"detail":"while (currentDir != null)","conditionSummary":"currentDir != null","loopTargetLine":130,"loopExitSummary":"Leaves the loop when the condition no longer holds.","visibility":"primary-visible","confidence":0.86},{"id":"resolvepath_guard-clause_133_1","kind":"guard-clause","label":"Guards early exit or rejection path","line":133,"detail":"if (File.Exists(candidate)) return 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__KnowledgeService.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__KnowledgeService.cs.json
new file mode 100644
index 0000000..6631e7d
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__KnowledgeService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure/Services/KnowledgeService.cs","purpose":"Provides AI-driven knowledge extraction, semantic search, RAG retrieval and caching; integrates with DB (Postgres/EF), Qdrant (vector DB), Neo4j (graph), and LLM/chat/embedding clients to produce structured KnowledgePackets, grounded answers, and semantic search DTOs.","classification":{"role":"service","layer":"infrastructure","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Namespace NexusReader.Infrastructure.Services and class KnowledgeService","Uses DbContextFactory, QdrantClient, Neo4j Driver, embedding and chat clients (integration responsibilities)","Contains caching, persistence and orchestration of AI calls and graph expansion"]},"className":"KnowledgeService","methods":[{"name":"KnowledgeService","line":38,"endLine":59,"signature":"(chatClient: IChatClient, embeddingGenerator: IEmbeddingGenerator<string,Embedding<float>>, dbContextFactory: 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cancellationToken);","visibility":"detail-only","confidence":0.7}]},{"name":"GetGraphDataAsync","line":66,"endLine":69,"signature":"(text: string, tenantId: string, ebookId: Guid? = null, cancellationToken: CancellationToken = default) -> Task<Result<KnowledgePacket>>","purpose":"Public façade to extract graph-structured knowledge using the graph extraction prompt.","calls":[{"targetFile":"self","targetMethod":"GetKnowledgeInternalAsync","callLine":68,"paramSummary":"text, tenantId, PromptRegistry.GraphExtractionPrompt, traceType: \"graph\", ebookId, cancellationToken"}],"actions":[{"id":"orchestration_68","kind":"mapping","label":"Delegates to internal orchestration","line":68,"visibility":"detail-only","confidence":0.7},{"id":"getgraphdataasync_return_68_0","kind":"return","label":"Returns result","line":68,"detail":"return await GetKnowledgeInternalAsync(text, tenantId, PromptRegistry.GraphExtractionPrompt, \"graph\", ebookId, 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key","visibility":"detail-only","confidence":0.7},{"id":"getknowledgeinternalasync_branch_122_5","kind":"branch","label":"Evaluates branch condition","line":122,"detail":"if (result.IsFailed)","conditionSummary":"result.IsFailed","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"retry-fallback_122","kind":"mapping","label":"Removes failed or errored entries from active requests","line":122,"detail":"On failure or exception tries to remove request key to allow future retries","visibility":"detail-only","confidence":0.7},{"id":"getknowledgeinternalasync_return_127_6","kind":"return","label":"Returns result","line":127,"detail":"return result;","visibility":"detail-only","confidence":0.7}]},{"name":"ExecuteAiRequestAndCacheAsync","line":140,"endLine":222,"signature":"(normalizedText: string, tenantId: string, systemPrompt: string, traceType: string, ebookId: Guid?, hash: string) -> Task<Result<KnowledgePacket>>","purpose":"Invokes the chat/LLM 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__PromptRegistry.cs.json b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__PromptRegistry.cs.json
new file mode 100644
index 0000000..37ef02e
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Infrastructure__Services__PromptRegistry.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Infrastructure/Services/PromptRegistry.cs","purpose":"Provides a centralized static registry of AI/system prompt templates used across the application for knowledge extraction, graph extraction, summarization/quizzes, and KM segmentation.","classification":{"role":"service","layer":"infrastructure","confidence":0.86,"evidence":["Service naming pattern","Application/service path heuristic","namespace NexusReader.Infrastructure.Services","static class named PromptRegistry living in an Infrastructure/Services folder","exposes constant prompt strings used for AI/knowledge processing"]},"className":"PromptRegistry","methods":[],"types":[{"name":"PromptRegistry","kind":"model","line":3,"purpose":"Static container model that holds predefined AI prompt templates as constants.","fields":[{"name":"KnowledgeExtractionSystemPrompt","type":"string","required":true,"line":5,"description":"System prompt instructing extraction of up to 15 key concepts, quizzes, and a knowledge graph; mandates minified JSON output and formatting rules."},{"name":"GraphExtractionPrompt","type":"string","required":true,"line":17,"description":"Prompt guiding extraction of concept and block nodes from paragraph-segmented text, limits nodes/links and mandates minified JSON graph schema."},{"name":"SummaryAndQuizPrompt","type":"string","required":true,"line":29,"description":"Prompt requesting a concise summary and a 3-5 question quiz, returning only minified JSON."},{"name":"KM_ExtractionPrompt","type":"string","required":true,"line":33,"description":"Prompt for segmenting text into granular Knowledge Units and links, with rules for summarizing code blocks and a JSON schema."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Registry","Constants"],"domainConcepts":["Knowledge extraction","Graph extraction","Summarization & quiz generation","Knowledge unit segmentation"],"keyDetails":"A static prompt registry (no runtime logic) used to centralize strict AI prompt templates and schemas; contains hard constraints (e.g., max nodes, max words) and mandates minified JSON outputs.","orchestrationMethods":[],"typedContracts":[{"name":"PromptRegistry","kind":"model","line":3,"fieldCount":4,"evidencePaths":["NexusReader.Infrastructure/Services/PromptRegistry.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"PromptRegistry","line":3,"summary":"model with 4 fields.","confidence":0.8,"evidencePaths":["NexusReader.Infrastructure/Services/PromptRegistry.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Maui__App.xaml.cs.json b/src/.documentation/cache/summaries/NexusReader.Maui__App.xaml.cs.json
new file mode 100644
index 0000000..c7fd80e
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Maui__App.xaml.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Maui/App.xaml.cs","purpose":"MAUI application entry class: initializes XAML components and sets the app's MainPage at startup.","classification":{"role":"program-entry","layer":"frontend","confidence":0.8,"evidence":["class App inherits Microsoft.Maui.Controls.Application (line 3)","Constructor calls InitializeComponent() and sets MainPage (lines 7-9)"]},"className":"App","methods":[{"name":"App","line":5,"endLine":10,"signature":"() -> void","purpose":"Constructs the MAUI Application, initializes XAML components and assigns the application's MainPage.","calls":[{"targetFile":"self","targetMethod":"InitializeComponent","callLine":7,"paramSummary":"none"},{"targetFile":"MainPage.xaml.cs","targetMethod":"MainPage (constructor)","callLine":9,"paramSummary":"no args; creates new MainPage instance"}],"actions":[{"id":"call_7","kind":"mapping","label":"Initialize XAML components","line":7,"detail":"InitializeComponent() initializes generated XAML UI elements","visibility":"detail-only","confidence":0.7},{"id":"set-property_9","kind":"mapping","label":"Set MainPage","line":9,"detail":"MainPage = new MainPage(); assigns the app's root page","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"App","kind":"model","line":3,"purpose":"MAUI Application class that boots the UI and holds the root page.","fields":[]}],"serviceRegistrations":[],"startupActions":[{"name":"App constructor","line":5,"kind":"unknown","targetCalls":[{"targetFile":"self","targetMethod":"InitializeComponent","callLine":7,"paramSummary":"none"},{"targetFile":"MainPage.xaml.cs","targetMethod":"MainPage (constructor)","callLine":9,"paramSummary":"no args"}]}],"dependencies":["MainPage.xaml.cs"],"patterns":["UI Bootstrap"],"domainConcepts":[],"keyDetails":"Simple MAUI app entrypoint: InitializeComponent and set MainPage. No services or external calls visible in this file.","orchestrationMethods":[{"name":"App","line":5,"confidence":0.61,"reason":"Coordinates 2 downstream calls with 0 architectural actions.","actionKinds":["mapping"],"evidencePaths":["NexusReader.Maui/App.xaml.cs","self","MainPage.xaml.cs"]}],"typedContracts":[{"name":"App","kind":"model","line":3,"fieldCount":0,"evidencePaths":["NexusReader.Maui/App.xaml.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"orchestration-method","label":"App","line":5,"summary":"Coordinates 2 downstream calls with 0 architectural actions.","confidence":0.61,"evidencePaths":["NexusReader.Maui/App.xaml.cs","self","MainPage.xaml.cs"]},{"kind":"typed-contract","label":"App","line":3,"summary":"model with 0 fields.","confidence":0.8,"evidencePaths":["NexusReader.Maui/App.xaml.cs"]},{"kind":"startup","label":"App constructor","line":5,"summary":"unknown startup action","confidence":0.78,"evidencePaths":["NexusReader.Maui/App.xaml.cs","self","MainPage.xaml.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Maui__Main.razor.json b/src/.documentation/cache/summaries/NexusReader.Maui__Main.razor.json
new file mode 100644
index 0000000..87755f0
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Maui__Main.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Maui/Main.razor","purpose":"Razor root routing component for the MAUI app: defines app Router, handles found/not-found route flows, enforces authorization with a redirect-to-login fallback, and applies the main layout and focus-on-navigate behavior.","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["Frontend path heuristic","Uses <Router> to wire up AppAssembly (line 4)","Contains <AuthorizeRouteView> with DefaultLayout and <NotAuthorized> redirect (lines 6-9)","Provides <NotFound> layout message and <FocusOnNavigate> usage (lines 11, 13-16)"]},"className":"Main","methods":[{"name":"RenderRouter","line":4,"endLine":18,"signature":"() -> RenderFragment (component render)","purpose":"Renders the app Router and declares route handling: Found (authorized route rendering + focus behavior) and NotFound fallback UI.","calls":[{"targetFile":"NexusReader.UI.Shared._Imports (assembly/type)","targetMethod":"Assembly","callLine":4,"paramSummary":"typeof(NexusReader.UI.Shared._Imports).Assembly passed to Router.AppAssembly"},{"targetFile":"NexusReader.UI.Shared/Layout/MainHubLayout.razor","targetMethod":"MainHubLayout","callLine":6,"paramSummary":"DefaultLayout passed to AuthorizeRouteView"},{"targetFile":"NexusReader.UI.Shared/RedirectToLogin.razor","targetMethod":"RedirectToLogin","callLine":8,"paramSummary":"Rendered inside <NotAuthorized> as fallback"},{"targetFile":"NexusReader.UI.Shared/FocusOnNavigate.razor","targetMethod":"FocusOnNavigate","callLine":11,"paramSummary":"RouteData and Selector=\"h1\" passed to set focus after navigation"}],"actions":[{"id":"orchestration_4","kind":"mapping","label":"Sets up Router with application assembly","line":4,"detail":"<Router AppAssembly=\"...\" /> directs Blazor routing to the UI.Shared assembly","visibility":"detail-only","confidence":0.7},{"id":"branch_5","kind":"branch","label":"Found vs NotFound routing branches","line":5,"detail":"Handles both matched routes (lines 5-12) and unmatched routes (lines 13-17)","conditionSummary":"route matched -> Found block, otherwise -> NotFound block","outcomeLabels":["Found (render route)","NotFound (render 404 message)"],"visibility":"detail-only","confidence":0.7},{"id":"ui-layout_6","kind":"mapping","label":"Applies main layout for route rendering","line":6,"detail":"AuthorizeRouteView.DefaultLayout set to MainHubLayout","visibility":"detail-only","confidence":0.7},{"id":"fallback_7","kind":"fallback","label":"NotAuthorized fallback redirects to login","line":7,"detail":"<NotAuthorized> contains <RedirectToLogin /> (line 8)","conditionSummary":"user not authorized for the matched route","outcomeLabels":["RedirectToLogin","Authorized rendering"],"visibility":"detail-only","confidence":0.7},{"id":"ui-behavior_11","kind":"mapping","label":"Focus on navigation","line":11,"detail":"FocusOnNavigate invoked with Selector=\"h1\" to move focus after route changes","visibility":"detail-only","confidence":0.7},{"id":"ui-notification_15","kind":"mapping","label":"NotFound message shown","line":15,"detail":"Renders a 404-like message: \"Sorry, there's nothing at this address.\"","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.UI.Shared (assembly)","NexusReader.UI.Shared/Layout/MainHubLayout.razor","NexusReader.UI.Shared/RedirectToLogin.razor","NexusReader.UI.Shared/FocusOnNavigate.razor"],"patterns":["Routing","Authorization","Layout Composition"],"domainConcepts":[],"keyDetails":"This file is the MAUI Blazor entry component that centralizes client-side routing and enforces authorization by redirecting unauthenticated users to a login component while applying the app's main layout and focus behavior.","orchestrationMethods":[{"name":"RenderRouter","line":4,"confidence":0.98,"reason":"Coordinates 4 downstream calls with 2 architectural actions.","actionKinds":["mapping","branch","fallback"],"evidencePaths":["NexusReader.Maui/Main.razor","NexusReader.UI.Shared._Imports (assembly/type)","NexusReader.UI.Shared/Layout/MainHubLayout.razor","NexusReader.UI.Shared/RedirectToLogin.razor","NexusReader.UI.Shared/FocusOnNavigate.razor"]}],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"orchestration-method","label":"RenderRouter","line":4,"summary":"Coordinates 4 downstream calls with 2 architectural actions.","confidence":0.98,"evidencePaths":["NexusReader.Maui/Main.razor","NexusReader.UI.Shared._Imports (assembly/type)","NexusReader.UI.Shared/Layout/MainHubLayout.razor","NexusReader.UI.Shared/RedirectToLogin.razor","NexusReader.UI.Shared/FocusOnNavigate.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Maui__MainPage.xaml.cs.json b/src/.documentation/cache/summaries/NexusReader.Maui__MainPage.xaml.cs.json
new file mode 100644
index 0000000..8faa6d2
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Maui__MainPage.xaml.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Maui/MainPage.xaml.cs","purpose":"MAUI code-behind for the app's main page; defines the MainPage partial class and initializes XAML-backed UI components.","classification":{"role":"ui-page","layer":"frontend","confidence":0.9,"evidence":["class MainPage inherits ContentPage (MAUI UI page)","file namespace NexusReader.Maui and filename MainPage.xaml.cs","constructor calls InitializeComponent() (XAML code-behind pattern)"]},"className":"MainPage","methods":[{"name":"MainPage","line":5,"endLine":8,"signature":"() -> void","purpose":"Constructor that initializes the XAML-backed UI for the MainPage.","calls":[{"targetFile":"MainPage.xaml.g.cs","targetMethod":"InitializeComponent","callLine":7,"paramSummary":"none"}],"actions":[{"id":"constructor_5","kind":"mapping","label":"Initializes UI components","line":5,"detail":"Calls InitializeComponent() to wire up XAML elements and generated partial code","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"MainPage","kind":"view-model","line":3,"purpose":"Code-behind partial class representing the Main UI page for the MAUI app.","fields":[]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["MainPage.xaml","MainPage.xaml.g.cs"],"patterns":["XAML code-behind","MAUI Page (ContentPage)"],"domainConcepts":[],"keyDetails":"Tiny partial UI class: only a constructor that calls InitializeComponent(); other behavior lives in XAML and generated partial class.","orchestrationMethods":[],"typedContracts":[{"name":"MainPage","kind":"view-model","line":3,"fieldCount":0,"evidencePaths":["NexusReader.Maui/MainPage.xaml.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"MainPage","line":3,"summary":"view-model with 0 fields.","confidence":0.8,"evidencePaths":["NexusReader.Maui/MainPage.xaml.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Maui__MauiProgram.cs.json b/src/.documentation/cache/summaries/NexusReader.Maui__MauiProgram.cs.json
new file mode 100644
index 0000000..b521cb8
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Maui__MauiProgram.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Maui/MauiProgram.cs","purpose":"Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging.","classification":{"role":"startup","layer":"frontend","confidence":0.9,"evidence":["Program/main filename match","Calls MauiApp.CreateBuilder() and UseMauiApp<App>() (MAUI startup)","Registers many application/UI services and calls AddApplication() and AddMediatR() (composition root / DI registration)"]},"className":"MauiProgram","methods":[{"name":"CreateMauiApp","line":12,"endLine":65,"signature":"() -> MauiApp","purpose":"Builds and configures the MAUI app: sets up Blazor webview, logging (debug in DEBUG), platform services, identity, network HttpClient, UI-state services, composes Application services, registers MediatR, and returns the built app; wraps startup in try/catch to log errors to 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DEBUG","visibility":"detail-only","confidence":0.7},{"id":"service-registration_28","kind":"mapping","label":"Singleton IPlatformService -> MauiPlatformService","line":28,"detail":"builder.Services.AddSingleton<IPlatformService, MauiPlatformService>()","visibility":"detail-only","confidence":0.7},{"id":"service-registration_29","kind":"mapping","label":"Singleton INativeStorageService -> MauiStorageService","line":29,"detail":"builder.Services.AddSingleton<INativeStorageService, MauiStorageService>()","visibility":"detail-only","confidence":0.7},{"id":"service-registration_32","kind":"mapping","label":"Scoped NexusAuthenticationStateProvider","line":32,"detail":"builder.Services.AddScoped<NexusAuthenticationStateProvider>()","visibility":"detail-only","confidence":0.7},{"id":"service-registration_33","kind":"mapping","label":"Scoped AuthenticationStateProvider -> factory resolving NexusAuthenticationStateProvider","line":33,"detail":"builder.Services.AddScoped<AuthenticationStateProvider>(sp => sp.GetRequiredService<NexusAuthenticationStateProvider>()) — maps framework abstraction to project implementation","visibility":"detail-only","confidence":0.7},{"id":"service-registration_35","kind":"mapping","label":"Adds AuthorizationCore","line":35,"detail":"builder.Services.AddAuthorizationCore()","visibility":"detail-only","confidence":0.7},{"id":"service-registration_38","kind":"mapping","label":"Scoped HttpClient with BaseAddress (emulator)","line":38,"detail":"builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(\"http://10.0.2.2:5000\") })","visibility":"detail-only","confidence":0.7},{"id":"service-registration_41","kind":"mapping","label":"UI state and interaction services (scoped)","line":41,"detail":"Registers IThemeService, IFocusModeService, IQuizStateService, IReaderNavigationService, IKnowledgeGraphService, IReaderInteractionService, KnowledgeCoordinator, ISyncService, IIdentityService as scoped (lines 41-49)","visibility":"detail-only","confidence":0.7},{"id":"third-party-registration_53","kind":"mapping","label":"MediatR service registration","line":53,"detail":"builder.Services.AddMediatR(cfg => cfg.RegisterServicesFromAssemblies(NexusReader.Application.DependencyInjection.Assembly))","visibility":"detail-only","confidence":0.7},{"id":"createmauiapp_return_57_0","kind":"return","label":"Returns result","line":57,"detail":"return builder.Build();","visibility":"detail-only","confidence":0.7},{"id":"log_62","kind":"log","label":"MAUI startup error debug write","line":62,"detail":"System.Diagnostics.Debug.WriteLine($\"MAUI Startup Error: {ex}\") in catch block","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"MauiProgram","kind":"model","line":10,"purpose":"Static host for MAUI app startup logic and DI composition.","fields":[]}],"serviceRegistrations":[{"line":28,"serviceType":"IPlatformService","implementationType":"MauiPlatformService","lifetime":"singleton","factorySummary":"Registers platform abstraction implemented for MAUI"},{"line":29,"serviceType":"INativeStorageService","implementationType":"MauiStorageService","lifetime":"singleton","factorySummary":"Registers platform native storage implementation"},{"line":32,"serviceType":"NexusAuthenticationStateProvider","implementationType":"NexusAuthenticationStateProvider","lifetime":"scoped","factorySummary":"Concrete auth state provider registered"},{"line":33,"serviceType":"Microsoft.AspNetCore.Components.Authorization.AuthenticationStateProvider","implementationType":"NexusAuthenticationStateProvider (via factory)","lifetime":"scoped","factorySummary":"Maps framework AuthenticationStateProvider to NexusAuthenticationStateProvider via service locator 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assembly","lifetime":"unknown","factorySummary":"Registers MediatR and scans NexusReader.Application assembly for handlers"}],"startupActions":[{"name":"Create and build MauiApp","line":16,"kind":"unknown","targetCalls":[{"targetFile":"framework","targetMethod":"MauiApp.CreateBuilder","callLine":16,"paramSummary":"initial MAUI builder creation"},{"targetFile":"framework","targetMethod":"IApplicationBuilder.Build / builder.Build","callLine":57,"paramSummary":"finalize and build MauiApp"}]}],"dependencies":["NexusReader.Application","NexusReader.Infrastructure.Mobile","NexusReader.UI.Shared","MediatR"],"patterns":["Dependency Injection","Composition Root","Service Registration"],"domainConcepts":["Identity (AuthenticationStateProvider)","Sync","KnowledgeGraph / KnowledgeCoordinator","Reader Navigation","Theme & Focus Mode","Quiz State"],"keyDetails":"Sets HttpClient BaseAddress to http://10.0.2.2:5000 (typical Android emulator -> host routing); composes Application layer via 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fields.","confidence":0.8,"evidencePaths":["NexusReader.Maui/MauiProgram.cs"]},{"kind":"startup","label":"Create and build MauiApp","line":16,"summary":"unknown startup action","confidence":0.78,"evidencePaths":["NexusReader.Maui/MauiProgram.cs","framework","framework"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Maui__NexusReader.Maui.csproj.json b/src/.documentation/cache/summaries/NexusReader.Maui__NexusReader.Maui.csproj.json
new file mode 100644
index 0000000..15d1956
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Maui__NexusReader.Maui.csproj.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Maui/NexusReader.Maui.csproj","purpose":"Project file for the MAUI mobile client of Nexus E-Reader; defines target frameworks, platform support, app metadata, MAUI features, package dependencies, and project references that shape the mobile runtime and build outputs.","classification":{"role":"startup","layer":"frontend","confidence":0.9,"evidence":["Contains MAUI-specific MSBuild properties (UseMaui, UseMauiEssentials) (lines 10-11)","Defines target frameworks for Android/iOS/MacCatalyst/Windows and SupportedOSPlatformVersion conditionals (lines 4-6, 18-22)","References UI.Shared and Infrastructure.Mobile project references (lines 33-35) and Blazor WebView package (line 28)"]},"className":"","methods":[],"types":[],"serviceRegistrations":[],"startupActions":[{"name":"Define target frameworks and platform support","line":3,"kind":"unknown","targetCalls":[{"targetFile":"self","targetMethod":"TargetFrameworks property","callLine":4,"paramSummary":"net10.0-android; conditionally append net10.0-ios, net10.0-maccatalyst, and net10.0-windows10.0.19041.0 based on host OS"},{"targetFile":"self","targetMethod":"SupportedOSPlatformVersion properties","callLine":18,"paramSummary":"sets minimum platform versions per target framework"}]},{"name":"Enable MAUI and MAUI Essentials","line":10,"kind":"middleware","targetCalls":[{"targetFile":"self","targetMethod":"UseMaui property","callLine":10,"paramSummary":"true (enables MAUI SDK features)"},{"targetFile":"self","targetMethod":"UseMauiEssentials property","callLine":11,"paramSummary":"true (enables Essentials APIs)"}]},{"name":"Declare app metadata and output type","line":7,"kind":"unknown","targetCalls":[{"targetFile":"self","targetMethod":"ApplicationTitle/ApplicationId","callLine":7,"paramSummary":"ApplicationTitle 'Nexus E-Reader', ApplicationId 'com.nexus.ereader'"},{"targetFile":"self","targetMethod":"OutputType","callLine":9,"paramSummary":"Exe"}]},{"name":"Package references affecting runtime","line":26,"kind":"unknown","targetCalls":[{"targetFile":"unknown","targetMethod":"Microsoft.AspNetCore.Components.WebView.Maui","callLine":28,"paramSummary":"Blazor WebView integration for hybrid UI"},{"targetFile":"unknown","targetMethod":"Microsoft.Maui.Essentials","callLine":29,"paramSummary":"Device features and cross-platform APIs"},{"targetFile":"unknown","targetMethod":"Microsoft.Extensions.Logging.Debug","callLine":27,"paramSummary":"Debug logging provider"}]},{"name":"Project references (composition/root boundaries)","line":32,"kind":"unknown","targetCalls":[{"targetFile":"../NexusReader.UI.Shared/NexusReader.UI.Shared.csproj","targetMethod":"project","callLine":33,"paramSummary":"Shared UI components and resources"},{"targetFile":"../NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj","targetMethod":"project","callLine":34,"paramSummary":"Mobile-specific infrastructure (storage, platform integrations)"}]}],"dependencies":["../NexusReader.UI.Shared/NexusReader.UI.Shared.csproj","../NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj"],"patterns":["MAUI app (single-project multi-target mobile)","Hybrid Blazor WebView integration"],"domainConcepts":["Mobile client UI","Platform-specific infrastructure"],"keyDetails":"This .csproj configures a MAUI-based mobile client targeted at Android by default and conditionally iOS/MacCatalyst/Windows; it enables MAUI and Essentials, includes a Blazor WebView package for hybrid UI, uses debug logging, and composes with shared UI and mobile infrastructure projects. Cross-cutting runtime concerns (auth/real-time/AI) are not configured here and likely live in referenced projects or runtime code.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"startup","label":"Define target frameworks and platform support","line":3,"summary":"unknown startup action","confidence":0.78,"evidencePaths":["NexusReader.Maui/NexusReader.Maui.csproj","self","self"]},{"kind":"startup","label":"Enable MAUI and MAUI Essentials","line":10,"summary":"middleware startup action","confidence":0.78,"evidencePaths":["NexusReader.Maui/NexusReader.Maui.csproj","self","self"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Maui__Platforms__Android__MainActivity.cs.json b/src/.documentation/cache/summaries/NexusReader.Maui__Platforms__Android__MainActivity.cs.json
new file mode 100644
index 0000000..c66c80b
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Maui__Platforms__Android__MainActivity.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Maui/Platforms/Android/MainActivity.cs","purpose":"Defines the Android MainActivity for the MAUI app; acts as the Android entry point (MainLauncher) and logs basic lifecycle events.","classification":{"role":"program-entry","layer":"frontend","confidence":0.9,"evidence":["Activity attribute with MainLauncher = true at line 8","Class inherits MauiAppCompatActivity (line 9) and overrides OnCreate (line 13)"]},"className":"MainActivity","methods":[{"name":"OnCreate","line":13,"endLine":18,"signature":"(savedInstanceState: Bundle?) -> void","purpose":"Android lifecycle OnCreate override that logs start/completion and invokes base.OnCreate to continue startup.","calls":[],"actions":[{"id":"log_15","kind":"log","label":"Log start of OnCreate","line":15,"detail":"Log.Debug(Tag, \"MainActivity.OnCreate starting...\")","visibility":"detail-only","confidence":0.7},{"id":"framework-call_16","kind":"mapping","label":"Invoke base lifecycle","line":16,"detail":"base.OnCreate(savedInstanceState) — delegates to MAUI/Android framework to complete initialization","visibility":"detail-only","confidence":0.7},{"id":"log_17","kind":"log","label":"Log completion of OnCreate","line":17,"detail":"Log.Debug(Tag, \"MainActivity.OnCreate completed\")","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"MainActivity","kind":"model","line":9,"purpose":"Android MAUI Activity that serves as the application entry point on Android devices.","fields":[{"name":"Tag","type":"string","required":true,"line":11,"description":"Logging tag constant used for Log.Debug calls"}]}],"serviceRegistrations":[],"startupActions":[{"name":"Activity attribute registration","line":8,"kind":"unknown","targetCalls":[]}],"dependencies":[],"patterns":["Android Activity","MAUI"],"domainConcepts":[],"keyDetails":"Small Android entrypoint class that only logs OnCreate start/completion and delegates initialization to the MAUI/Android framework via base.OnCreate.","orchestrationMethods":[],"typedContracts":[{"name":"MainActivity","kind":"model","line":9,"fieldCount":1,"evidencePaths":["NexusReader.Maui/Platforms/Android/MainActivity.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"MainActivity","line":9,"summary":"model with 1 fields.","confidence":0.8,"evidencePaths":["NexusReader.Maui/Platforms/Android/MainActivity.cs"]},{"kind":"startup","label":"Activity attribute registration","line":8,"summary":"unknown startup action","confidence":0.78,"evidencePaths":["NexusReader.Maui/Platforms/Android/MainActivity.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Maui__Platforms__Android__MainApplication.cs.json b/src/.documentation/cache/summaries/NexusReader.Maui__Platforms__Android__MainApplication.cs.json
new file mode 100644
index 0000000..b5865f4
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Maui__Platforms__Android__MainApplication.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Maui/Platforms/Android/MainApplication.cs","purpose":"Android MAUI application entry that integrates with the Android runtime and creates the MAUI app instance for the NexusReader mobile app.","classification":{"role":"program-entry","layer":"frontend","confidence":0.9,"evidence":["Class is annotated with [Application] (line 9)","Class inherits from MauiApplication and overrides CreateMauiApp (lines 10, 20)","Calls MauiProgram.CreateMauiApp to bootstrap the MAUI app (line 25)"]},"className":"MainApplication","methods":[{"name":"MainApplication","line":14,"endLine":18,"signature":"(IntPtr handle, JniHandleOwnership ownership) -> MainApplication (constructor)","purpose":"Constructs the Android application object and logs construction for diagnostic purposes.","calls":[],"actions":[{"id":"base-call_15","kind":"mapping","label":"Calls base MauiApplication constructor","line":15,"detail":"base(handle, ownership)","visibility":"detail-only","confidence":0.7},{"id":"log_17","kind":"log","label":"Constructor debug log","line":17,"detail":"Log.Debug(Tag, \"MainApplication constructor called\")","visibility":"detail-only","confidence":0.7}]},{"name":"CreateMauiApp","line":20,"endLine":35,"signature":"() -> MauiApp","purpose":"Bootstraps and returns the MAUI app instance; logs progress and handles exceptions by logging and rethrowing.","calls":[{"targetFile":"MauiProgram.cs","targetMethod":"CreateMauiApp","callLine":25,"paramSummary":"no parameters; expects MauiProgram to return a configured MauiApp"}],"actions":[{"id":"log_22","kind":"log","label":"Start creation","line":22,"detail":"Log.Debug(Tag, \"CreateMauiApp starting...\")","visibility":"detail-only","confidence":0.7},{"id":"try-catch_23","kind":"mapping","label":"Wraps creation in try/catch to log failures","line":23,"detail":"try { var app = MauiProgram.CreateMauiApp(); return app; } catch (Exception ex) { Log.Error(...); throw; }","conditionSummary":"catch Exception ex","outcomeLabels":["on-success: return app","on-failure: log error and rethrow"],"visibility":"detail-only","confidence":0.7},{"id":"log_26","kind":"log","label":"Successful creation log","line":26,"detail":"Log.Debug(Tag, \"CreateMauiApp successful\")","visibility":"detail-only","confidence":0.7},{"id":"createmauiapp_return_27_0","kind":"return","label":"Returns result","line":27,"detail":"return app;","visibility":"detail-only","confidence":0.7},{"id":"log_31","kind":"log","label":"Error logging on creation failure","line":31,"detail":"Log.Error(Tag, $\"CreateMauiApp FAILED: {ex.Message}\") and Log.Error(Tag, ex.StackTrace)","visibility":"detail-only","confidence":0.7},{"id":"throw_33","kind":"mapping","label":"Rethrows caught exception","line":33,"detail":"throw;","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"MainApplication","kind":"model","line":10,"purpose":"Android application class that ties the Android process to the MAUI app bootstrap.","fields":[{"name":"Tag","type":"string","required":true,"line":12,"description":"Log tag used for Android logging (\"NEXUS_MAUI\")"}]}],"serviceRegistrations":[],"startupActions":[{"name":"CreateMauiApp override","line":20,"kind":"unknown","targetCalls":[{"targetFile":"MauiProgram.cs","targetMethod":"CreateMauiApp","callLine":25,"paramSummary":"Obtains the configured MauiApp instance to return to the runtime"}]}],"dependencies":["MauiProgram.cs"],"patterns":["Application-subclass bootstrap"],"domainConcepts":[],"keyDetails":"This file is the Android entry point for the MAUI app: it logs lifecycle startup, delegates actual app construction to MauiProgram.CreateMauiApp, and logs+rethrows exceptions to surface bootstrap failures.","orchestrationMethods":[],"typedContracts":[{"name":"MainApplication","kind":"model","line":10,"fieldCount":1,"evidencePaths":["NexusReader.Maui/Platforms/Android/MainApplication.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"MainApplication","line":10,"summary":"model with 1 fields.","confidence":0.8,"evidencePaths":["NexusReader.Maui/Platforms/Android/MainApplication.cs"]},{"kind":"startup","label":"CreateMauiApp override","line":20,"summary":"unknown startup action","confidence":0.78,"evidencePaths":["NexusReader.Maui/Platforms/Android/MainApplication.cs","MauiProgram.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Maui__Services__MauiStorageService.cs.json b/src/.documentation/cache/summaries/NexusReader.Maui__Services__MauiStorageService.cs.json
new file mode 100644
index 0000000..8f12b93
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Maui__Services__MauiStorageService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Maui/Services/MauiStorageService.cs","purpose":"Platform-specific MAUI implementation of INativeStorageService that provides synchronous-preference and secure-storage access with result-wrapping and exception-to-failure mapping.","classification":{"role":"service","layer":"infrastructure","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Class MauiStorageService implements INativeStorageService (platform abstraction).","Uses Microsoft.Maui.Storage Preferences and SecureStorage for persistence."]},"className":"MauiStorageService","methods":[{"name":"SaveStringAsync","line":10,"endLine":21,"signature":"(key: string, value: string) -> Task<Result>","purpose":"Stores a string into MAUI Preferences and returns a FluentResults Result indicating success or failure.","calls":[{"targetFile":"external:Microsoft.Maui.Storage","targetMethod":"Preferences.Default.Set","callLine":14,"paramSummary":"key, value (stores string in 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Maui___Imports.razor.json b/src/.documentation/cache/summaries/NexusReader.Maui___Imports.razor.json
new file mode 100644
index 0000000..a593e5d
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Maui___Imports.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Maui/_Imports.razor","purpose":"Provides global @using directives for Razor components in the NexusReader.Maui project so shared namespaces are available to all .razor files.","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["Frontend path heuristic","@using directives for Microsoft.AspNetCore.Components (lines 2-5)","@using NexusReader.Maui and NexusReader.UI.Shared (lines 7-9) indicating project UI imports"]},"className":"","methods":[],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["System.Net.Http","Microsoft.AspNetCore.Components.Forms","Microsoft.AspNetCore.Components.Routing","Microsoft.AspNetCore.Components.Web","Microsoft.AspNetCore.Components.Web.Virtualization","Microsoft.JSInterop","NexusReader.Maui","NexusReader.UI.Shared","NexusReader.UI.Shared.Components","NexusReader.UI.Shared.Layout"],"patterns":["Razor _Imports global using pattern","Shared UI imports"],"domainConcepts":["UI Shared","MAUI Razor components"],"keyDetails":"File contains only global using directives (11 lines). It centralizes namespaces for Razor components in the MAUI project and does not contain runtime methods, types, or startup code.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Atoms__NexusButton.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Atoms__NexusButton.razor.json
new file mode 100644
index 0000000..cd2a9d4
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Atoms__NexusButton.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Components/Atoms/NexusButton.razor","purpose":"A small reusable Blazor button component that renders a <button>, exposes a ChildContent slot, supports disabling, captures unmatched attributes, and forwards click events to a consumer-provided EventCallback.","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["Frontend path heuristic","Razor markup renders an HTML <button> element (lines 1-3)","Blazor [Parameter] properties (lines 6-10) expose ChildContent, EventCallback and attribute splatting"]},"className":"NexusButton","methods":[{"name":"Component render / click forward","line":1,"endLine":3,"signature":"() -> renders markup and forwards click events (EventCallback<MouseEventArgs>)","purpose":"Renders the button element, injects ChildContent, disables the button when Disabled is true, splats AdditionalAttributes, and forwards click events to the consumer's OnClick callback.","calls":[{"targetFile":"unknown","targetMethod":"consumer-provided OnClick (EventCallback<MouseEventArgs>)","callLine":1,"paramSummary":"MouseEventArgs produced by the click event"}],"actions":[{"id":"event-binding_1","kind":"mapping","label":"Binds click to consumer callback","line":1,"detail":"Uses @onclick=\"OnClick\" to forward click events to EventCallback<MouseEventArgs>","visibility":"detail-only","confidence":0.7},{"id":"render_1","kind":"mapping","label":"Renders button element","line":1,"detail":"<button class=\"nexus-btn @Class\" disabled=\"@Disabled\" ...> with ChildContent","visibility":"detail-only","confidence":0.7},{"id":"attribute-splatting_10","kind":"mapping","label":"Captures unmatched attributes","line":10,"detail":"[Parameter(CaptureUnmatchedValues = true)] public Dictionary<string, object>? AdditionalAttributes","visibility":"detail-only","confidence":0.7}]},{"name":"OnClick parameter (EventCallback)","line":8,"endLine":8,"signature":"(args: MouseEventArgs) -> Task (EventCallback<MouseEventArgs>)","purpose":"Parameter exposing a consumer-supplied click handler that the component will invoke when clicked.","calls":[],"actions":[{"id":"parameter_8","kind":"mapping","label":"EventCallback exposed to parent","line":8,"detail":"EventCallback<Microsoft.AspNetCore.Components.Web.MouseEventArgs> OnClick","visibility":"detail-only","confidence":0.7}]},{"name":"ChildContent parameter (RenderFragment)","line":6,"endLine":6,"signature":"() -> RenderFragment?","purpose":"Slot for consumer-provided child content rendered inside the button.","calls":[],"actions":[{"id":"parameter_6","kind":"mapping","label":"RenderFragment slot","line":6,"detail":"ChildContent is rendered between the <button> tags","visibility":"detail-only","confidence":0.7}]},{"name":"Disabled parameter","line":9,"endLine":9,"signature":"() -> bool","purpose":"Controls the disabled state of the button.","calls":[],"actions":[{"id":"state-binding_1","kind":"mapping","label":"Disables button when true","line":1,"detail":"disabled=\"@Disabled\" on the <button>","visibility":"detail-only","confidence":0.7}]},{"name":"Class parameter","line":7,"endLine":7,"signature":"() -> string","purpose":"Allows passing CSS class names to the button element.","calls":[],"actions":[{"id":"render-binding_1","kind":"mapping","label":"Applies CSS class","line":1,"detail":"class=\"nexus-btn @Class\"","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Component","EventCallback","Attribute Splatting"],"domainConcepts":[],"keyDetails":"Presentation-only Blazor component: simple render, attribute splatting, and forwards click events to a consumer via EventCallback<MouseEventArgs>. No internal logic, state management, or external service calls.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Atoms__NexusIcon.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Atoms__NexusIcon.razor.json
new file mode 100644
index 0000000..5d4c04b
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Atoms__NexusIcon.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Components/Atoms/NexusIcon.razor","purpose":"Razor UI component that renders an inline SVG icon based on a Name parameter, exposing size, CSS class and passthrough attributes; provides a set of predefined icon shapes and a fallback circle.","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["Frontend path heuristic","Razor markup rendering an <svg> at lines 1-94","Component parameters annotated with [Parameter] at lines 96-101"]},"className":"NexusIcon","methods":[{"name":"Render (component markup switch)","line":1,"endLine":94,"signature":"(Name: string, Size: string, Class: string, AdditionalAttributes: Dictionary<string, object>?) -> Rendered SVG markup","purpose":"Chooses and emits SVG path/shape elements according to the lower-cased Name property; attaches class, size and any additional HTML attributes to the root <svg>.","calls":[],"actions":[{"id":"attribute-binding_1","kind":"mapping","label":"Attach root svg attributes and passthrough attributes","line":1,"detail":"Binds Class, Size, and AdditionalAttributes to the root <svg> element (@attributes capture)","visibility":"detail-only","confidence":0.7},{"id":"render_component_markup_switch_switch_2_0","kind":"switch","label":"Branches across multiple outcomes","line":2,"detail":"@switch (Name.ToLowerInvariant())","conditionSummary":"Name.ToLowerInvariant()","visibility":"primary-visible","confidence":0.82},{"id":"string-manipulation_2","kind":"mapping","label":"Normalizes Name","line":2,"detail":"Calls ToLowerInvariant() on Name for case-insensitive matching","visibility":"detail-only","confidence":0.7},{"id":"branch-switch_2","kind":"mapping","label":"Switch on Name.ToLowerInvariant()","line":2,"detail":"Multiple case branches render different SVG paths; at least ~30 named icons handled (e.g. 'home','map','robot','search','settings', etc.)","visibility":"detail-only","confidence":0.7},{"id":"fallback_89","kind":"fallback","label":"Default fallback icon","line":89,"detail":"Renders simple circle when Name doesn't match any case","visibility":"detail-only","confidence":0.7},{"id":"render_component_markup_switch_fallback_89_1","kind":"fallback","label":"Falls back to alternate path","line":89,"detail":"default:","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84}]}],"types":[{"name":"NexusIcon","kind":"view-model","line":96,"purpose":"Component parameter surface (component instance state) controlling which icon to render and rendering attributes.","fields":[{"name":"Name","type":"string","required":true,"line":97,"description":"Icon name used to select which SVG paths to render (defaults to empty string)"},{"name":"Size","type":"string","required":true,"line":98,"description":"Width/height applied to the SVG (defaults to '24')"},{"name":"Class","type":"string","required":true,"line":99,"description":"Additional CSS class(es) appended to the svg element"},{"name":"AdditionalAttributes","type":"Dictionary<string, object>?","required":false,"line":100,"description":"Capture of unmatched attributes to be splatted onto the root svg element"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Icon Component","Switch-based renderer","Passthrough attributes (CaptureUnmatchedValues)"],"domainConcepts":["UI/Icons"],"keyDetails":"All runtime behavior is the Name-driven switch which maps many string keys to inline SVG shapes; unmatched names render a fallback circle and any extra html attributes are forwarded to the root <svg>.","orchestrationMethods":[{"name":"Render (component markup switch)","line":1,"confidence":0.69,"reason":"Contains 2 architectural actions relevant to business execution.","actionKinds":["mapping","switch","fallback"],"evidencePaths":["NexusReader.UI.Shared/Components/Atoms/NexusIcon.razor"]}],"typedContracts":[{"name":"NexusIcon","kind":"view-model","line":96,"fieldCount":4,"evidencePaths":["NexusReader.UI.Shared/Components/Atoms/NexusIcon.razor"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"orchestration-method","label":"Render (component markup switch)","line":1,"summary":"Contains 2 architectural actions relevant to business execution.","confidence":0.69,"evidencePaths":["NexusReader.UI.Shared/Components/Atoms/NexusIcon.razor"]},{"kind":"typed-contract","label":"NexusIcon","line":96,"summary":"view-model with 4 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Atoms/NexusIcon.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Atoms__NexusSearchBox.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Atoms__NexusSearchBox.razor.json
new file mode 100644
index 0000000..9ff9505
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Atoms__NexusSearchBox.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Components/Atoms/NexusSearchBox.razor","purpose":"Razor UI search box component that binds user input, shows a clear button, and emits an OnSearch event when Enter is pressed.","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["Middleware pattern","Frontend path heuristic","Razor markup with input, conditional button and @code block","Parameters decorated with [Parameter] and uses EventCallback<string> for OnSearch"]},"className":"NexusSearchBox","methods":[{"name":"HandleKeyPress","line":27,"endLine":33,"signature":"(e: KeyboardEventArgs) -> Task","purpose":"Handles keypress on the input; when Enter is pressed it invokes the OnSearch callback with the current SearchValue.","calls":[{"targetFile":"unknown","targetMethod":"OnSearch.InvokeAsync","callLine":31,"paramSummary":"SearchValue (string)"}],"actions":[{"id":"guard-clause_29","kind":"guard-clause","label":"Checks for Enter key","line":29,"detail":"If Enter, awaits OnSearch.InvokeAsync(SearchValue)","conditionSummary":"e.Key == \"Enter\"","outcomeLabels":["invoke OnSearch","no-op"],"visibility":"detail-only","confidence":0.7},{"id":"handlekeypress_branch_29_0","kind":"branch","label":"Evaluates branch condition","line":29,"detail":"if (e.Key == \"Enter\")","conditionSummary":"e.Key == \"Enter\"","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"external-call_31","kind":"external-call","label":"Emit search event","line":31,"detail":"Calls provided EventCallback<string>.InvokeAsync with SearchValue","visibility":"detail-only","confidence":0.7}]},{"name":"ClearSearch","line":35,"endLine":38,"signature":"() -> void","purpose":"Clears the current search input by resetting SearchValue to an empty string.","calls":[],"actions":[{"id":"state-mutation_37","kind":"mapping","label":"Reset SearchValue","line":37,"detail":"SearchValue = string.Empty","visibility":"detail-only","confidence":0.7}]},{"name":"IsActive","line":25,"endLine":25,"signature":"() -> bool (getter)","purpose":"Computed property that indicates whether the search box has content and should be rendered active.","calls":[],"actions":[{"id":"computed-return_25","kind":"mapping","label":"Determines active CSS state","line":25,"detail":"Returns !string.IsNullOrEmpty(SearchValue)","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"NexusSearchBox (component state/params)","kind":"view-model","line":19,"purpose":"Encapsulates component parameters and local UI state for the search box.","fields":[{"name":"Placeholder","type":"string","required":false,"line":20,"description":"Placeholder text shown in the input (default: \"Search your library...\")."},{"name":"IconClass","type":"string","required":false,"line":21,"description":"CSS classes applied to the icon element (default: \"bi bi-search\")."},{"name":"OnSearch","type":"EventCallback<string>","required":false,"line":22,"description":"Callback invoked when the user triggers a search (Enter key)."},{"name":"SearchValue","type":"string","required":false,"line":24,"description":"Private bound value of the input element."},{"name":"IsActive","type":"bool","required":false,"line":25,"description":"Read-only property indicating whether SearchValue is non-empty (used to toggle CSS)."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Component","EventCallback"],"domainConcepts":["Search"],"keyDetails":"Input is two-way bound to SearchValue with oninput; pressing Enter raises OnSearch via EventCallback<string>; a clear button appears when SearchValue is non-empty and resets it.","orchestrationMethods":[{"name":"HandleKeyPress","line":27,"confidence":0.77,"reason":"Contains 2 architectural actions relevant to business execution.","actionKinds":["guard-clause","branch","external-call"],"evidencePaths":["NexusReader.UI.Shared/Components/Atoms/NexusSearchBox.razor","unknown"]}],"typedContracts":[{"name":"NexusSearchBox (component state/params)","kind":"view-model","line":19,"fieldCount":5,"evidencePaths":["NexusReader.UI.Shared/Components/Atoms/NexusSearchBox.razor"]}],"persistenceInteractions":[],"externalInteractions":[{"methodName":"HandleKeyPress","line":31,"kind":"external-call","detail":"Calls provided EventCallback<string>.InvokeAsync with SearchValue","evidencePaths":["NexusReader.UI.Shared/Components/Atoms/NexusSearchBox.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"HandleKeyPress","line":27,"summary":"Contains 2 architectural actions relevant to business execution.","confidence":0.77,"evidencePaths":["NexusReader.UI.Shared/Components/Atoms/NexusSearchBox.razor","unknown"]},{"kind":"typed-contract","label":"NexusSearchBox (component state/params)","line":19,"summary":"view-model with 5 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Atoms/NexusSearchBox.razor"]},{"kind":"external-call","label":"HandleKeyPress","line":31,"summary":"Calls provided EventCallback<string>.InvokeAsync with SearchValue","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Atoms/NexusSearchBox.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Atoms__NexusTypography.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Atoms__NexusTypography.razor.json
new file mode 100644
index 0000000..b87e992
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Atoms__NexusTypography.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Components/Atoms/NexusTypography.razor","purpose":"Razor UI atom that renders typed typography: a <div> wrapper that applies a CSS class based on a Variant and forwards any additional attributes and child content.","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["Frontend path heuristic","File is a .razor component with markup and [Parameter] properties (lines 1-9).","Uses CSS class composition and RenderFragment ChildContent (lines 1-3, 6)."]},"className":"NexusTypography","methods":[{"name":"Render","line":1,"endLine":3,"signature":"() -> RenderFragment","purpose":"Renders the component markup: a div whose class combines the computed VariantCssClass and user Class, and includes ChildContent and AdditionalAttributes.","calls":[],"actions":[{"id":"attribute-forwarding_1","kind":"mapping","label":"Forwards unmatched attributes","line":1,"detail":"Uses @attributes=\"AdditionalAttributes\" to write arbitrary HTML attributes to the div","visibility":"detail-only","confidence":0.7},{"id":"render_1","kind":"mapping","label":"Renders markup with computed classes and attributes","line":1,"detail":"Outputs <div class=\"nexus-typography {VariantCssClass} {Class}\" ...>{ChildContent}</div>","visibility":"detail-only","confidence":0.7}]},{"name":"VariantCssClass","line":11,"endLine":17,"signature":"() -> string","purpose":"Computes the CSS class string for the current Typography Variant using a switch expression.","calls":[],"actions":[{"id":"branch_11","kind":"branch","label":"Switch on Variant to select CSS class","line":11,"detail":"Three explicit cases and a default fallback return specific CSS class names.","conditionSummary":"Variant switch","outcomeLabels":["TypographyVariant.Heading -> \"nexus-heading\"","TypographyVariant.Ebook -> \"nexus-ebook\"","TypographyVariant.UI -> \"nexus-ui\"","default -> \"nexus-ui\""],"visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"TypographyVariant","kind":"enum","line":19,"purpose":"Enumeration of supported typography variants that control styling of the component.","fields":[{"name":"Heading","type":"enum-member","required":true,"line":21,"description":"Heading variant"},{"name":"Ebook","type":"enum-member","required":true,"line":22,"description":"Ebook variant"},{"name":"UI","type":"enum-member","required":true,"line":23,"description":"UI/body variant (default)"}]},{"name":"NexusTypographyProps","kind":"model","line":6,"purpose":"Component parameters exposed to consumers of the NexusTypography component.","fields":[{"name":"ChildContent","type":"RenderFragment?","required":false,"line":6,"description":"Rendered child content inside the typography wrapper"},{"name":"Class","type":"string","required":false,"line":7,"description":"Additional CSS class(es) to append to the component"},{"name":"Variant","type":"TypographyVariant","required":false,"line":8,"description":"Which typography variant/style to apply"},{"name":"AdditionalAttributes","type":"Dictionary<string, object>?","required":false,"line":9,"description":"Capture-all for arbitrary HTML attributes forwarded to the root element"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Razor Component","UI Atom","Attribute forwarding"],"domainConcepts":["Typography"],"keyDetails":"Small presentational Razor component: branching behavior is limited to mapping Variant -> CSS class; it forwards arbitrary attributes and renders child content.","orchestrationMethods":[{"name":"VariantCssClass","line":11,"confidence":0.57,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["branch"],"evidencePaths":["NexusReader.UI.Shared/Components/Atoms/NexusTypography.razor"]}],"typedContracts":[{"name":"NexusTypographyProps","kind":"model","line":6,"fieldCount":4,"evidencePaths":["NexusReader.UI.Shared/Components/Atoms/NexusTypography.razor"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"orchestration-method","label":"VariantCssClass","line":11,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.57,"evidencePaths":["NexusReader.UI.Shared/Components/Atoms/NexusTypography.razor"]},{"kind":"typed-contract","label":"NexusTypographyProps","line":6,"summary":"model with 4 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Atoms/NexusTypography.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Molecules__AiAssistantBubble.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Molecules__AiAssistantBubble.razor.json
new file mode 100644
index 0000000..20b5433
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Molecules__AiAssistantBubble.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor","purpose":"Razor UI component that displays an AI assistant bubble, requests summaries/quizzes from a KnowledgeCoordinator, streams the summary word-by-word, supports user actions (more/quiz), and cancels/cleans up in-flight streams.","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["Middleware pattern","Frontend path heuristic","Razor markup and @code block (Blazor component).","Injects IQuizStateService and KnowledgeCoordinator services and declares [Parameter] properties.","Contains UI rendering, streaming text reveal, and user action handlers."]},"className":"AiAssistantBubble","methods":[{"name":"OnParametersSetAsync","line":56,"endLine":67,"signature":"() -> Task","purpose":"React to parameter changes and trigger fetch/stream when the component is interactive and ContextBlockId changed.","calls":[{"targetFile":"self","targetMethod":"FetchAndStreamAsync","callLine":66,"paramSummary":"none"}],"actions":[{"id":"onparameterssetasync_branch_58_0","kind":"branch","label":"Evaluates branch condition","line":58,"detail":"if (!_isInteractive)","conditionSummary":"!_isInteractive","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_58","kind":"guard-clause","label":"Requires component to be interactive","line":58,"detail":"if (!_isInteractive) return;","conditionSummary":"!_isInteractive","outcomeLabels":["return"],"visibility":"detail-only","confidence":0.7},{"id":"onparameterssetasync_return_59_1","kind":"return","label":"Returns result","line":59,"detail":"return;","visibility":"detail-only","confidence":0.7},{"id":"onparameterssetasync_branch_62_2","kind":"branch","label":"Evaluates branch condition","line":62,"detail":"if (string.IsNullOrEmpty(ContextBlockId) || ContextBlockId == _lastFetchedBlockId)","conditionSummary":"string.IsNullOrEmpty(ContextBlockId) || ContextBlockId == _lastFetchedBlockId","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_62","kind":"guard-clause","label":"Only refetch when ContextBlockId changed and non-empty","line":62,"detail":"prevents redundant fetches","conditionSummary":"string.IsNullOrEmpty(ContextBlockId) || ContextBlockId == _lastFetchedBlockId","outcomeLabels":["return","continue"],"visibility":"detail-only","confidence":0.7},{"id":"onparameterssetasync_return_63_3","kind":"return","label":"Returns result","line":63,"detail":"return;","visibility":"detail-only","confidence":0.7},{"id":"state-change_65","kind":"mapping","label":"Update last fetched id","line":65,"detail":"_lastFetchedBlockId = ContextBlockId;","visibility":"detail-only","confidence":0.7}]},{"name":"OnAfterRenderAsync","line":69,"endLine":80,"signature":"(firstRender: bool) -> Task","purpose":"On first render mark component interactive and start initial fetch/stream if ContextBlockId is present.","calls":[{"targetFile":"self","targetMethod":"FetchAndStreamAsync","callLine":77,"paramSummary":"none"}],"actions":[{"id":"onafterrenderasync_branch_71_0","kind":"branch","label":"Evaluates branch condition","line":71,"detail":"if (firstRender)","conditionSummary":"firstRender","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_71","kind":"guard-clause","label":"firstRender check","line":71,"detail":"Only executes initialization on first render","conditionSummary":"firstRender","outcomeLabels":["initialize","no-op"],"visibility":"detail-only","confidence":0.7},{"id":"state-change_73","kind":"mapping","label":"Enable interactivity","line":73,"detail":"_isInteractive = true;","visibility":"detail-only","confidence":0.7},{"id":"onafterrenderasync_branch_74_1","kind":"branch","label":"Evaluates branch condition","line":74,"detail":"if (!string.IsNullOrEmpty(ContextBlockId))","conditionSummary":"!string.IsNullOrEmpty(ContextBlockId)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_74","kind":"guard-clause","label":"Start fetch when ContextBlockId present","line":74,"detail":"kicks off FetchAndStreamAsync for initial content","conditionSummary":"!string.IsNullOrEmpty(ContextBlockId)","outcomeLabels":["start fetch","skip"],"visibility":"detail-only","confidence":0.7},{"id":"state-change_76","kind":"mapping","label":"Set last fetched id for initial load","line":76,"detail":"_lastFetchedBlockId = ContextBlockId;","visibility":"detail-only","confidence":0.7}]},{"name":"FetchAndStreamAsync","line":82,"endLine":144,"signature":"() -> Task","purpose":"Orchestrates requesting a summary/quiz from the KnowledgeCoordinator, handles fallbacks, streams the summary word-by-word to the UI, supports cancellation and error handling.","calls":[{"targetFile":"NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs","targetMethod":"RequestSummaryAndQuizAsync","callLine":101,"paramSummary":"contentToAnalyze (string): either FullPageContent or formatted ContextBlockId + Dialogue"}],"actions":[{"id":"cancel_85","kind":"mapping","label":"Cancel any in-progress stream","line":85,"detail":"_streamCts?.Cancel(); _streamCts = new CancellationTokenSource();","visibility":"detail-only","confidence":0.7},{"id":"state-change_89","kind":"mapping","label":"Reset UI/loading state before request","line":89,"detail":"_isLoading=true; _isStreaming=false; _displayedText=string.Empty; _packet=null; StateHasChanged();","visibility":"detail-only","confidence":0.7},{"id":"compute_97","kind":"mapping","label":"Assemble content to analyze","line":97,"detail":"var contentToAnalyze = FullPageContent ? FullPageContent : $\"[ID: {ContextBlockId}]\\n{Dialogue}\";","conditionSummary":"!string.IsNullOrWhiteSpace(FullPageContent)","outcomeLabels":["use FullPageContent","use ContextBlockId+Dialogue"],"visibility":"detail-only","confidence":0.7},{"id":"external-call_101","kind":"external-call","label":"Request AI summary and quiz packet","line":101,"detail":"await Coordinator.RequestSummaryAndQuizAsync(contentToAnalyze) — result contains IsSuccess and Value","visibility":"detail-only","confidence":0.7},{"id":"fetchandstreamasync_branch_106_0","kind":"branch","label":"Evaluates branch condition","line":106,"detail":"if (string.IsNullOrWhiteSpace(summary))","conditionSummary":"string.IsNullOrWhiteSpace(summary)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_106","kind":"guard-clause","label":"Fallback when summary missing","line":106,"detail":"sets _displayedText to Dialogue or 'Brak danych do analizy.' and returns early","conditionSummary":"string.IsNullOrWhiteSpace(summary)","outcomeLabels":["use Dialogue or static message","proceed to streaming"],"visibility":"detail-only","confidence":0.7},{"id":"fetchandstreamasync_return_114_1","kind":"return","label":"Returns result","line":114,"detail":"return;","visibility":"detail-only","confidence":0.7},{"id":"state-change_117","kind":"mapping","label":"Enable streaming","line":117,"detail":"_isLoading=false; _isStreaming=true;","visibility":"detail-only","confidence":0.7},{"id":"loop_121","kind":"loop","label":"Word-by-word reveal loop (supports cancellation)","line":121,"detail":"foreach (var word in summary.Split(' ')) { if (token.IsCancellationRequested) break; append word; StateHasChanged(); await Task.Delay(40, token); }","visibility":"detail-only","confidence":0.7},{"id":"fetchandstreamasync_loop_122_2","kind":"loop","label":"Repeats work over a collection or condition","line":122,"detail":"foreach (var word in words)","conditionSummary":"var word in words","loopTargetLine":122,"loopExitSummary":"Leaves the loop when the condition no longer holds.","visibility":"primary-visible","confidence":0.86},{"id":"fetchandstreamasync_guard-clause_124_3","kind":"guard-clause","label":"Guards early exit or rejection path","line":124,"detail":"if (token.IsCancellationRequested) break;","conditionSummary":"token.IsCancellationRequested","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"exception-handling_130","kind":"mapping","label":"Suppressed cancellation","line":130,"detail":"catch (OperationCanceledException) — silently drop","visibility":"detail-only","confidence":0.7},{"id":"exception-handling_134","kind":"mapping","label":"Generic error fallback","line":134,"detail":"Sets _displayedText to Dialogue or 'Błąd analizy.' and logs Console.WriteLine","visibility":"detail-only","confidence":0.7},{"id":"finally_139","kind":"mapping","label":"Ensure streaming flag cleared and UI refreshed","line":139,"detail":"_isStreaming = false; StateHasChanged();","visibility":"detail-only","confidence":0.7}]},{"name":"HandleActionClick","line":146,"endLine":157,"signature":"(action: string) -> Task","purpose":"Handle user action clicks: triggers quiz request if action mentions 'quiz' and forwards the action via OnActionTriggered callback.","calls":[{"targetFile":"NexusReader.UI.Shared/Services/IQuizStateService.cs","targetMethod":"RequestQuiz","callLine":150,"paramSummary":"ContextBlockId (string)"},{"targetFile":"self","targetMethod":"OnActionTriggered.InvokeAsync","callLine":155,"paramSummary":"action (string) — invoked if delegate present"}],"actions":[{"id":"branch_148","kind":"branch","label":"Detect quiz action","line":148,"detail":"Case-insensitive detection triggers QuizState.RequestQuiz(ContextBlockId)","conditionSummary":"action.Contains(\"quiz\", StringComparison.OrdinalIgnoreCase)","outcomeLabels":["Request quiz","skip"],"visibility":"detail-only","confidence":0.7},{"id":"handleactionclick_branch_148_0","kind":"branch","label":"Evaluates branch condition","line":148,"detail":"if (action.Contains(\"quiz\", StringComparison.OrdinalIgnoreCase))","conditionSummary":"action.Contains(\"quiz\", StringComparison.OrdinalIgnoreCase)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"handleactionclick_branch_153_1","kind":"branch","label":"Evaluates branch condition","line":153,"detail":"if (OnActionTriggered.HasDelegate)","conditionSummary":"OnActionTriggered.HasDelegate","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_153","kind":"guard-clause","label":"Forward action via EventCallback if subscriber exists","line":153,"detail":"await OnActionTriggered.InvokeAsync(action)","conditionSummary":"OnActionTriggered.HasDelegate","outcomeLabels":["invoke callback","skip"],"visibility":"detail-only","confidence":0.7}]},{"name":"Dispose","line":159,"endLine":163,"signature":"() -> void","purpose":"Lifecycle cleanup: cancels and disposes the streaming CancellationTokenSource.","calls":[],"actions":[{"id":"dispose_161","kind":"mapping","label":"Cancel and dispose CTS","line":161,"detail":"_streamCts?.Cancel(); _streamCts?.Dispose();","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs","NexusReader.UI.Shared/Services/IQuizStateService.cs","NexusReader.Application.DTOs.AI (KnowledgePacket referenced)"],"patterns":["Streaming UI (simulated streaming reveal)","CancellationTokenSource cancel-on-new-request","Fallback-on-empty-response"],"domainConcepts":["KnowledgePacket","Quiz","ContextBlock (ContextBlockId)"],"keyDetails":"Word-by-word simulated streaming with cancellation when a new ContextBlockId is provided; falls back to static Dialogue when AI summary is missing; exposes actions including quiz request and forwards events via EventCallback.","orchestrationMethods":[{"name":"FetchAndStreamAsync","line":82,"confidence":0.98,"reason":"Contains 4 architectural actions relevant to business execution.","actionKinds":["mapping","external-call","branch","guard-clause","return","loop"],"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor","NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs"]},{"name":"HandleActionClick","line":146,"confidence":0.97,"reason":"Coordinates 2 downstream calls with 3 architectural actions.","actionKinds":["branch","guard-clause"],"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor","NexusReader.UI.Shared/Services/IQuizStateService.cs","self"]},{"name":"OnParametersSetAsync","line":56,"confidence":0.77,"reason":"Contains 2 architectural actions relevant to business execution.","actionKinds":["branch","guard-clause","return","mapping"],"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor","self"]},{"name":"OnAfterRenderAsync","line":69,"confidence":0.77,"reason":"Contains 2 architectural actions relevant to business execution.","actionKinds":["branch","guard-clause","mapping"],"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor","self"]}],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[{"methodName":"FetchAndStreamAsync","line":101,"kind":"external-call","detail":"await Coordinator.RequestSummaryAndQuizAsync(contentToAnalyze) — result contains IsSuccess and Value","evidencePaths":["NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"FetchAndStreamAsync","line":82,"summary":"Contains 4 architectural actions relevant to business execution.","confidence":0.98,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor","NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs"]},{"kind":"orchestration-method","label":"HandleActionClick","line":146,"summary":"Coordinates 2 downstream calls with 3 architectural actions.","confidence":0.97,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor","NexusReader.UI.Shared/Services/IQuizStateService.cs","self"]},{"kind":"orchestration-method","label":"OnParametersSetAsync","line":56,"summary":"Contains 2 architectural actions relevant to business execution.","confidence":0.77,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor","self"]},{"kind":"orchestration-method","label":"OnAfterRenderAsync","line":69,"summary":"Contains 2 architectural actions relevant to business execution.","confidence":0.77,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor","self"]},{"kind":"external-call","label":"FetchAndStreamAsync","line":101,"summary":"await Coordinator.RequestSummaryAndQuizAsync(contentToAnalyze) — result contains IsSuccess and Value","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Molecules__GroundednessBadge.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Molecules__GroundednessBadge.razor.json
new file mode 100644
index 0000000..da5224e
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Molecules__GroundednessBadge.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor","purpose":"Blazor UI component that displays a \"groundedness\" badge for an Answer given a Context by invoking an application VerifyGroundednessCommand and showing score, icon and status CSS.","classification":{"role":"ui-component","layer":"frontend","confidence":0.95,"evidence":["Command pattern","Frontend path heuristic","Razor markup with component parameters and injected services (@inject IMediator, AuthenticationStateProvider)","Calls Mediator.Send with VerifyGroundednessCommand and renders UI elements (NexusIcon, percent text)"]},"className":"GroundednessBadge","methods":[{"name":"OnParametersSet","line":33,"endLine":41,"signature":"()-> void","purpose":"Detects parameter changes (Answer/Context) and clears cached result when inputs changed.","calls":[],"actions":[{"id":"guard-clause_35","kind":"guard-clause","label":"Detects changed inputs","line":35,"detail":"_result = null; update _previousAnswer/_previousContext","conditionSummary":"Answer != _previousAnswer || Context != _previousContext","outcomeLabels":["reset result","no-op"],"visibility":"detail-only","confidence":0.7},{"id":"onparametersset_branch_35_0","kind":"branch","label":"Evaluates branch condition","line":35,"detail":"if (Answer != _previousAnswer || Context != _previousContext)","conditionSummary":"Answer != _previousAnswer || Context != _previousContext","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78}]},{"name":"OnParametersSetAsync","line":43,"endLine":49,"signature":"()-> Task","purpose":"If component is interactive and inputs are present and no result cached, triggers an async verification run.","calls":[{"targetFile":"self","targetMethod":"RunCheck","callLine":47,"paramSummary":"none"}],"actions":[{"id":"branch_45","kind":"branch","label":"Conditional run","line":45,"conditionSummary":"_isInteractive && !string.IsNullOrEmpty(Answer) && !string.IsNullOrEmpty(Context) && _result == null","outcomeLabels":["await RunCheck()","skip"],"visibility":"detail-only","confidence":0.7},{"id":"onparameterssetasync_branch_45_0","kind":"branch","label":"Evaluates branch condition","line":45,"detail":"if (_isInteractive && !string.IsNullOrEmpty(Answer) && !string.IsNullOrEmpty(Context) && _result == null)","conditionSummary":"_isInteractive && !string.IsNullOrEmpty(Answer) && !string.IsNullOrEmpty(Context) && _result == null","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78}]},{"name":"OnAfterRenderAsync","line":51,"endLine":61,"signature":"(firstRender: bool) -> Task","purpose":"On first render flips interactive mode and may trigger RunCheck if inputs exist and no cached result.","calls":[{"targetFile":"self","targetMethod":"RunCheck","callLine":58,"paramSummary":"none"}],"actions":[{"id":"onafterrenderasync_branch_53_0","kind":"branch","label":"Evaluates branch condition","line":53,"detail":"if (firstRender)","conditionSummary":"firstRender","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_53","kind":"guard-clause","label":"First-render initialization","line":53,"conditionSummary":"firstRender","outcomeLabels":["_isInteractive = true; 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StateHasChanged()","visibility":"detail-only","confidence":0.7},{"id":"external-call_68","kind":"external-call","label":"Get authentication state","line":68,"detail":"await AuthProvider.GetAuthenticationStateAsync()","visibility":"detail-only","confidence":0.7},{"id":"runcheck_repository-read_69_0","kind":"repository-read","label":"Reads repository or persistence state","line":69,"detail":"var tenantId = authState.User.FindFirst(\"TenantId\")?.Value ?? \"global\";","visibility":"secondary-visible","confidence":0.86},{"id":"mapping/fallback_69","kind":"mapping","label":"Resolve tenant id","line":69,"detail":"var tenantId = ... ?? \"global\"","conditionSummary":"authState.User.FindFirst(\"TenantId\")?.Value","outcomeLabels":["tenantId from claim","fallback to 'global'"],"visibility":"detail-only","confidence":0.7},{"id":"external-call_71","kind":"external-call","label":"Send verification command","line":71,"detail":"await Mediator.Send(new VerifyGroundednessCommand(...))","visibility":"detail-only","confidence":0.7},{"id":"branch_72","kind":"branch","label":"Apply command result","line":72,"conditionSummary":"res.IsSuccess","outcomeLabels":["set _result = res.Value","leave _result null"],"visibility":"detail-only","confidence":0.7},{"id":"runcheck_branch_72_1","kind":"branch","label":"Evaluates branch condition","line":72,"detail":"if (res.IsSuccess)","conditionSummary":"res.IsSuccess","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"state-change_77","kind":"mapping","label":"Finish checking and refresh UI","line":77,"detail":"_isChecking = false; StateHasChanged()","visibility":"detail-only","confidence":0.7}]},{"name":"GetStatusClass","line":81,"endLine":87,"signature":"()-> string","purpose":"Returns a CSS status class based on _result.Score thresholds.","calls":[],"actions":[{"id":"getstatusclass_guard-clause_83_0","kind":"guard-clause","label":"Guards early exit or rejection path","line":83,"detail":"if (_result == null) return \"\";","conditionSummary":"_result == null","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"branch_83","kind":"branch","label":"Score thresholds","line":83,"conditionSummary":"_result == null -> \"\"; _result.Score >= 0.8 -> \"status-high\"; _result.Score >= 0.5 -> \"status-medium\"; else -> \"status-low\"","outcomeLabels":["no-result","high","medium","low"],"visibility":"detail-only","confidence":0.7},{"id":"getstatusclass_guard-clause_84_1","kind":"guard-clause","label":"Guards early exit or rejection path","line":84,"detail":"if (_result.Score >= 0.8) return \"status-high\";","conditionSummary":"_result.Score >= 0.8","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"getstatusclass_guard-clause_85_2","kind":"guard-clause","label":"Guards early exit or rejection path","line":85,"detail":"if (_result.Score >= 0.5) return \"status-medium\";","conditionSummary":"_result.Score >= 0.5","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"getstatusclass_return_86_3","kind":"return","label":"Returns result","line":86,"detail":"return \"status-low\";","visibility":"detail-only","confidence":0.7}]},{"name":"GetIcon","line":89,"endLine":95,"signature":"()-> string","purpose":"Chooses icon name corresponding to score bands for UI rendering.","calls":[],"actions":[{"id":"geticon_guard-clause_91_0","kind":"guard-clause","label":"Guards early exit or rejection path","line":91,"detail":"if (_result == null) return \"help\";","conditionSummary":"_result == null","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"branch_91","kind":"branch","label":"Score -> icon mapping","line":91,"conditionSummary":"_result == null -> \"help\"; _result.Score >= 0.8 -> \"check-circle\"; _result.Score >= 0.5 -> \"info-circle\"; else -> \"alert-triangle\"","outcomeLabels":["help","check-circle","info-circle","alert-triangle"],"visibility":"detail-only","confidence":0.7},{"id":"geticon_guard-clause_92_1","kind":"guard-clause","label":"Guards early exit or rejection path","line":92,"detail":"if (_result.Score >= 0.8) return \"check-circle\";","conditionSummary":"_result.Score >= 0.8","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"geticon_guard-clause_93_2","kind":"guard-clause","label":"Guards early exit or rejection path","line":93,"detail":"if (_result.Score >= 0.5) return \"info-circle\";","conditionSummary":"_result.Score >= 0.5","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"geticon_return_94_3","kind":"return","label":"Returns result","line":94,"detail":"return \"alert-triangle\";","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"GroundednessBadge component state","kind":"model","line":23,"purpose":"Component parameters and private state used to determine when to run verification and what to render.","fields":[{"name":"Answer","type":"string","required":false,"line":24,"description":"Input answer to verify (component parameter)"},{"name":"Context","type":"string","required":false,"line":25,"description":"Supporting context for verification (component parameter)"},{"name":"_result","type":"GroundednessResult?","required":false,"line":27,"description":"Cached verification result when available"},{"name":"_isChecking","type":"bool","required":true,"line":28,"description":"Flag while verification is in progress"},{"name":"_isInteractive","type":"bool","required":true,"line":29,"description":"Set after first render to allow automatic checks"},{"name":"_previousAnswer","type":"string","required":false,"line":30,"description":"Last seen Answer to detect changes"},{"name":"_previousContext","type":"string","required":false,"line":31,"description":"Last seen Context to detect changes"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Commands.AI (VerifyGroundednessCommand)","NexusReader.UI.Shared.Components.Atoms (NexusIcon)","MediatR (IMediator usage)","Microsoft.AspNetCore.Components.Authorization (AuthenticationStateProvider)"],"patterns":["Blazor component lifecycle","Mediator/Command (MediatR)","UI state caching with change detection"],"domainConcepts":["Groundedness (score, rationale)","Tenant scoping (tenantId from auth claims)"],"keyDetails":"Runs verification automatically on first render and when Answer/Context change; uses auth claim 'TenantId' with fallback 'global'; updates UI state during async operation and only applies result on successful command response.","orchestrationMethods":[{"name":"RunCheck","line":63,"confidence":0.98,"reason":"Coordinates 4 downstream calls with 5 architectural actions.","actionKinds":["mapping","external-call","repository-read","branch"],"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor","unknown","unknown","NexusReader.Application.Commands.AI","unknown"]},{"name":"OnAfterRenderAsync","line":51,"confidence":0.89,"reason":"Contains 3 architectural actions relevant to business execution.","actionKinds":["branch","guard-clause"],"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor","self"]},{"name":"OnParametersSetAsync","line":43,"confidence":0.77,"reason":"Contains 2 architectural actions relevant to business execution.","actionKinds":["branch"],"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor","self"]},{"name":"OnParametersSet","line":33,"confidence":0.57,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["guard-clause","branch"],"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor"]},{"name":"GetStatusClass","line":81,"confidence":0.57,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["guard-clause","branch","return"],"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor"]},{"name":"GetIcon","line":89,"confidence":0.57,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["guard-clause","branch","return"],"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor"]}],"typedContracts":[{"name":"GroundednessBadge component state","kind":"model","line":23,"fieldCount":7,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor"]}],"persistenceInteractions":[{"methodName":"RunCheck","line":69,"kind":"persistence-read","detail":"var tenantId = authState.User.FindFirst(\"TenantId\")?.Value ?? \"global\";","evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor"]}],"externalInteractions":[{"methodName":"RunCheck","line":68,"kind":"external-call","detail":"await AuthProvider.GetAuthenticationStateAsync()","evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor"]},{"methodName":"RunCheck","line":71,"kind":"external-call","detail":"await Mediator.Send(new VerifyGroundednessCommand(...))","evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"RunCheck","line":63,"summary":"Coordinates 4 downstream calls with 5 architectural actions.","confidence":0.98,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor","unknown","unknown","NexusReader.Application.Commands.AI","unknown"]},{"kind":"orchestration-method","label":"OnAfterRenderAsync","line":51,"summary":"Contains 3 architectural actions relevant to business execution.","confidence":0.89,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor","self"]},{"kind":"orchestration-method","label":"OnParametersSetAsync","line":43,"summary":"Contains 2 architectural actions relevant to business execution.","confidence":0.77,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor","self"]},{"kind":"orchestration-method","label":"OnParametersSet","line":33,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.57,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor"]},{"kind":"typed-contract","label":"GroundednessBadge component state","line":23,"summary":"model with 7 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor"]},{"kind":"persistence","label":"RunCheck","line":69,"summary":"var tenantId = authState.User.FindFirst(\"TenantId\")?.Value ?? \"global\";","confidence":0.82,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor"]},{"kind":"external-call","label":"RunCheck","line":68,"summary":"await AuthProvider.GetAuthenticationStateAsync()","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor"]},{"kind":"external-call","label":"RunCheck","line":71,"summary":"await Mediator.Send(new VerifyGroundednessCommand(...))","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Molecules__IntelligenceToolbar.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Molecules__IntelligenceToolbar.razor.json
new file mode 100644
index 0000000..bf00706
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Molecules__IntelligenceToolbar.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Components/Molecules/IntelligenceToolbar.razor","purpose":"Razor UI component that provides an intelligence toolbar with navigation, focus-mode toggle, cache clearing, and logout controls; wires to FocusMode, KnowledgeService and IdentityService for runtime behavior.","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["Middleware pattern","Frontend path heuristic","Razor component markup with buttons and @inject directives (lines 1-6, 8-45)","Uses injected UI services IFocusModeService, IKnowledgeService, IIdentityService and NavigationManager (lines 1-6, 47-76)"]},"className":"IntelligenceToolbar","methods":[{"name":"OnInitialized","line":48,"endLine":51,"signature":"() -> void (override)","purpose":"Component lifecycle init: subscribes to FocusMode change events to trigger UI updates.","calls":[{"targetFile":"NexusReader.UI.Shared/Services/IFocusModeService.cs","targetMethod":"OnFocusModeChanged","callLine":50,"paramSummary":"+= HandleUpdate (delegate subscription)"}],"actions":[{"id":"event-subscribe_50","kind":"mapping","label":"Subscribe to focus mode changes","line":50,"detail":"FocusMode.OnFocusModeChanged += HandleUpdate","visibility":"detail-only","confidence":0.7}]},{"name":"HandleClearCache","line":53,"endLine":62,"signature":"() -> Task","purpose":"Requests the KnowledgeService to clear the AI cache and logs the action and success.","calls":[{"targetFile":"NexusReader.Application.Abstractions/Services/IKnowledgeService.cs","targetMethod":"ClearCacheAsync","callLine":57,"paramSummary":"no args; awaited async call returning result with IsSuccess"}],"actions":[{"id":"log_56","kind":"log","label":"Log cache clear request","line":56,"detail":"Console.WriteLine(\"[IntelligenceToolbar] Requesting cache clear...\")","visibility":"detail-only","confidence":0.7},{"id":"external-call_57","kind":"external-call","label":"Clear AI cache","line":57,"detail":"await KnowledgeService.ClearCacheAsync()","visibility":"detail-only","confidence":0.7},{"id":"handleclearcache_branch_58_0","kind":"branch","label":"Evaluates branch condition","line":58,"detail":"if (result.IsSuccess)","conditionSummary":"result.IsSuccess","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_58","kind":"guard-clause","label":"Log on success","line":58,"detail":"if (result.IsSuccess) Console.WriteLine(\"[IntelligenceToolbar] Cache cleared successfully!\")","conditionSummary":"result.IsSuccess","outcomeLabels":["log-success","no-op-on-failure"],"visibility":"detail-only","confidence":0.7},{"id":"log_60","kind":"log","label":"Log cache cleared successfully","line":60,"detail":"Console.WriteLine(\"[IntelligenceToolbar] Cache cleared successfully!\")","visibility":"detail-only","confidence":0.7}]},{"name":"HandleLogout","line":64,"endLine":68,"signature":"() -> Task","purpose":"Performs logout via IdentityService then navigates to logout form.","calls":[{"targetFile":"NexusReader.Application.Abstractions/Services/IIdentityService.cs","targetMethod":"LogoutAsync","callLine":66,"paramSummary":"no args; awaited async logout"}],"actions":[{"id":"external-call_66","kind":"external-call","label":"Logout user","line":66,"detail":"await IdentityService.LogoutAsync()","visibility":"detail-only","confidence":0.7},{"id":"navigation_67","kind":"mapping","label":"Navigate to logout form","line":67,"detail":"NavigationManager.NavigateTo(\"/account/logout-form\", true) (framework navigation)","visibility":"detail-only","confidence":0.7}]},{"name":"HandleUpdate","line":70,"endLine":70,"signature":"() -> Task","purpose":"UI update bridge invoked when FocusMode changes; triggers StateHasChanged asynchronously.","calls":[],"actions":[{"id":"ui-refresh_70","kind":"mapping","label":"Invoke StateHasChanged","line":70,"detail":"InvokeAsync(StateHasChanged) to request component re-render","visibility":"detail-only","confidence":0.7}]},{"name":"Dispose","line":72,"endLine":75,"signature":"() -> void","purpose":"Component cleanup: unsubscribes from FocusMode change events to avoid leaks.","calls":[{"targetFile":"NexusReader.UI.Shared/Services/IFocusModeService.cs","targetMethod":"OnFocusModeChanged","callLine":74,"paramSummary":"-= HandleUpdate (delegate unsubscription)"}],"actions":[{"id":"event-unsubscribe_74","kind":"mapping","label":"Unsubscribe from focus mode changes","line":74,"detail":"FocusMode.OnFocusModeChanged -= HandleUpdate","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.UI.Shared/Services/IFocusModeService.cs","NexusReader.Application.Abstractions/Services/IKnowledgeService.cs","NexusReader.Application.Abstractions/Services/IIdentityService.cs"],"patterns":["Component","Event subscription","UI orchestration"],"domainConcepts":["FocusMode","Knowledge/AI cache","Identity/Logout","Navigation"],"keyDetails":"Toolbar wires UI interactions to injected services: subscribes to FocusMode.OnFocusModeChanged, can clear KnowledgeService cache with async call and logs outcomes, performs logout via IdentityService then navigates; markup binds FocusMode.ToggleAsync and reads FocusMode.IsFocusModeActive for visual state.","orchestrationMethods":[{"name":"HandleClearCache","line":53,"confidence":0.77,"reason":"Contains 2 architectural actions relevant to business execution.","actionKinds":["log","external-call","branch","guard-clause"],"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/IntelligenceToolbar.razor","NexusReader.Application.Abstractions/Services/IKnowledgeService.cs"]},{"name":"HandleLogout","line":64,"confidence":0.65,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["external-call","mapping"],"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/IntelligenceToolbar.razor","NexusReader.Application.Abstractions/Services/IIdentityService.cs"]}],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[{"methodName":"HandleClearCache","line":57,"kind":"external-call","detail":"await KnowledgeService.ClearCacheAsync()","evidencePaths":["NexusReader.UI.Shared/Components/Molecules/IntelligenceToolbar.razor"]},{"methodName":"HandleLogout","line":66,"kind":"external-call","detail":"await IdentityService.LogoutAsync()","evidencePaths":["NexusReader.UI.Shared/Components/Molecules/IntelligenceToolbar.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"HandleClearCache","line":53,"summary":"Contains 2 architectural actions relevant to business execution.","confidence":0.77,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/IntelligenceToolbar.razor","NexusReader.Application.Abstractions/Services/IKnowledgeService.cs"]},{"kind":"orchestration-method","label":"HandleLogout","line":64,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.65,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/IntelligenceToolbar.razor","NexusReader.Application.Abstractions/Services/IIdentityService.cs"]},{"kind":"external-call","label":"HandleClearCache","line":57,"summary":"await KnowledgeService.ClearCacheAsync()","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/IntelligenceToolbar.razor"]},{"kind":"external-call","label":"HandleLogout","line":66,"summary":"await IdentityService.LogoutAsync()","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/IntelligenceToolbar.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Molecules__KnowledgeCheck.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Molecules__KnowledgeCheck.razor.json
new file mode 100644
index 0000000..530f059
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Molecules__KnowledgeCheck.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Components/Molecules/KnowledgeCheck.razor","purpose":"Blazor UI component that renders an interactive quiz (knowledge check), subscribes to quiz-state updates, allows selecting answers, sends answer commands via MediatR, and provides haptic feedback via a platform service.","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["Middleware pattern","Frontend path heuristic","Razor markup with UI markup and @code block","Injects IMediator, IPlatformService and IQuizStateService and uses StateHasChanged"]},"className":"KnowledgeCheck","methods":[{"name":"OnInitialized","line":56,"endLine":59,"signature":"() -> void","purpose":"Lifecycle initialization: subscribes to quiz update events to refresh the component.","calls":[{"targetFile":"unknown","targetMethod":"QuizService.OnQuizUpdated += HandleUpdate","callLine":58,"paramSummary":"attach local handler HandleUpdate"}],"actions":[{"id":"event-subscribe_58","kind":"mapping","label":"Subscribes to quiz state updates","line":58,"detail":"QuizService.OnQuizUpdated += HandleUpdate","visibility":"detail-only","confidence":0.7}]},{"name":"HandleUpdate","line":61,"endLine":61,"signature":"() -> Task","purpose":"Invokes a UI refresh when the quiz state service reports updates.","calls":[],"actions":[{"id":"ui-refresh_61","kind":"mapping","label":"Schedules StateHasChanged on UI thread","line":61,"detail":"InvokeAsync(StateHasChanged)","visibility":"detail-only","confidence":0.7}]},{"name":"Dispose","line":63,"endLine":66,"signature":"() -> void","purpose":"Lifecycle cleanup: unsubscribes the quiz update handler.","calls":[{"targetFile":"unknown","targetMethod":"QuizService.OnQuizUpdated -= HandleUpdate","callLine":65,"paramSummary":"detach local handler HandleUpdate"}],"actions":[{"id":"event-unsubscribe_65","kind":"mapping","label":"Unsubscribes from quiz updates","line":65,"detail":"QuizService.OnQuizUpdated -= HandleUpdate","visibility":"detail-only","confidence":0.7}]},{"name":"SelectOptionAsync","line":68,"endLine":86,"signature":"(question: QuizQuestionDto, index: int) -> Task","purpose":"Handles user selection of an answer: guards duplicate input, vibrates, sends a SubmitAnswerCommand, records result, vibrates success/error and refreshes UI.","calls":[{"targetFile":"unknown","targetMethod":"Dictionary.ContainsKey","callLine":70,"paramSummary":"_states.ContainsKey(question)"},{"targetFile":"unknown","targetMethod":"IPlatformService.VibrateAsync","callLine":73,"paramSummary":"40 (millis)"},{"targetFile":"unknown","targetMethod":"SubmitAnswerCommand (ctor)","callLine":75,"paramSummary":"index, question.CorrectIndex"},{"targetFile":"unknown","targetMethod":"IMediator.Send","callLine":76,"paramSummary":"SubmitAnswerCommand"},{"targetFile":"self","targetMethod":"_states[...] = (index, res.IsSuccess)","callLine":78,"paramSummary":"stores selected index and success flag"},{"targetFile":"unknown","targetMethod":"IPlatformService.VibrateSuccessAsync","callLine":81,"paramSummary":"no params"},{"targetFile":"unknown","targetMethod":"IPlatformService.VibrateErrorAsync","callLine":83,"paramSummary":"no params"},{"targetFile":"self","targetMethod":"StateHasChanged","callLine":85,"paramSummary":"refresh UI"}],"actions":[{"id":"selectoptionasync_guard-clause_70_0","kind":"guard-clause","label":"Guards early exit or rejection path","line":70,"detail":"if (_states.ContainsKey(question)) return;","conditionSummary":"_states.ContainsKey(question)","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"guard-clause_70","kind":"guard-clause","label":"Rejects repeated answers for same question","line":70,"detail":"if already answered, exit early","conditionSummary":"_states.ContainsKey(question)","outcomeLabels":["return","continue"],"visibility":"detail-only","confidence":0.7},{"id":"external-call_73","kind":"external-call","label":"Haptic feedback before processing","line":73,"detail":"PlatformService.VibrateAsync(40)","visibility":"detail-only","confidence":0.7},{"id":"command-dispatch_75","kind":"mapping","label":"Submits answer to application via MediatR","line":75,"detail":"new SubmitAnswerCommand(index, question.CorrectIndex) -> Mediator.Send(cmd)","visibility":"detail-only","confidence":0.7},{"id":"state-write_78","kind":"mapping","label":"Records user's selected index and correctness","line":78,"detail":"_states[question] = (index, res.IsSuccess)","visibility":"detail-only","confidence":0.7},{"id":"selectoptionasync_branch_80_1","kind":"branch","label":"Evaluates branch condition","line":80,"detail":"if (res.IsSuccess)","conditionSummary":"res.IsSuccess","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_80","kind":"branch","label":"Feedback branch on success","line":80,"detail":"calls VibrateSuccessAsync() or VibrateErrorAsync()","conditionSummary":"res.IsSuccess","outcomeLabels":["vibrate success","vibrate error"],"visibility":"detail-only","confidence":0.7},{"id":"selectoptionasync_fallback_82_2","kind":"fallback","label":"Falls back to alternate path","line":82,"detail":"else","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"ui-refresh_85","kind":"mapping","label":"Refresh component to show updated answer state","line":85,"detail":"StateHasChanged()","visibility":"detail-only","confidence":0.7}]},{"name":"AllQuestionsAnswered","line":88,"endLine":91,"signature":"() -> bool","purpose":"Determines if all quiz questions have been answered by comparing recorded answers to quiz question count.","calls":[],"actions":[{"id":"guard-clause_90","kind":"guard-clause","label":"Checks quiz existence and answer count","line":90,"detail":"Returns true when a quiz exists and all questions answered","conditionSummary":"QuizService.CurrentQuiz != null && _states.Count == QuizService.CurrentQuiz.Questions.Count","outcomeLabels":["true","false"],"visibility":"detail-only","confidence":0.7},{"id":"allquestionsanswered_return_90_0","kind":"return","label":"Returns result","line":90,"detail":"return QuizService.CurrentQuiz != null && _states.Count == QuizService.CurrentQuiz.Questions.Count;","visibility":"detail-only","confidence":0.7}]},{"name":"GetBlockClass","line":94,"endLine":98,"signature":"(question: QuizQuestionDto) -> string","purpose":"Returns CSS class for a question block based on whether it was answered and correctness.","calls":[],"actions":[{"id":"getblockclass_guard-clause_96_0","kind":"guard-clause","label":"Guards early exit or rejection path","line":96,"detail":"if (!_states.TryGetValue(question, out var state)) return \"\";","conditionSummary":"!_states.TryGetValue(question, out var state)","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"guard-clause_96","kind":"guard-clause","label":"Returns empty when no recorded state","line":96,"detail":"If state present, returns 'state-correct' or 'state-incorrect'","conditionSummary":"!_states.TryGetValue(question, out var state)","outcomeLabels":["return \"\"","continue"],"visibility":"detail-only","confidence":0.7},{"id":"getblockclass_return_97_1","kind":"return","label":"Returns result","line":97,"detail":"return state.IsCorrect ? \"state-correct\" : \"state-incorrect\";","visibility":"detail-only","confidence":0.7}]},{"name":"GetOptionClass","line":100,"endLine":111,"signature":"(question: QuizQuestionDto, index: int) -> string","purpose":"Determines option-specific CSS class (selected/correct/incorrect/faded) using recorded answer state and question's correct index.","calls":[],"actions":[{"id":"getoptionclass_guard-clause_102_0","kind":"guard-clause","label":"Guards early exit or rejection path","line":102,"detail":"if (!_states.TryGetValue(question, out var state)) return \"\";","conditionSummary":"!_states.TryGetValue(question, out var state)","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"guard-clause_102","kind":"guard-clause","label":"Returns empty when no recorded state","line":102,"detail":"If state exists, subsequent branches decide class","conditionSummary":"!_states.TryGetValue(question, out var state)","outcomeLabels":["return \"\"","continue"],"visibility":"detail-only","confidence":0.7},{"id":"getoptionclass_branch_104_1","kind":"branch","label":"Evaluates branch condition","line":104,"detail":"if (state.SelectedIndex == index)","conditionSummary":"state.SelectedIndex == index","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_104","kind":"branch","label":"Selected index branch","line":104,"detail":"Returns option-correct when state.IsCorrect else option-incorrect","conditionSummary":"state.SelectedIndex == index","outcomeLabels":["option-correct/option-incorrect","continue"],"visibility":"detail-only","confidence":0.7},{"id":"getoptionclass_return_105_2","kind":"return","label":"Returns result","line":105,"detail":"return state.IsCorrect ? \"option-correct\" : \"option-incorrect\";","visibility":"detail-only","confidence":0.7},{"id":"getoptionclass_branch_107_3","kind":"branch","label":"Evaluates branch condition","line":107,"detail":"if (state.IsCorrect == false && question.CorrectIndex == index)","conditionSummary":"state.IsCorrect == false && question.CorrectIndex == index","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_107","kind":"branch","label":"Reveal correct option when user answered incorrectly","line":107,"detail":"If another option is correct, mark it revealed","conditionSummary":"state.IsCorrect == false && question.CorrectIndex == index","outcomeLabels":["option-revealed-correct","continue"],"visibility":"detail-only","confidence":0.7},{"id":"getoptionclass_return_108_4","kind":"return","label":"Returns result","line":108,"detail":"return \"option-revealed-correct\";","visibility":"detail-only","confidence":0.7},{"id":"default-return_110","kind":"mapping","label":"Fade non-selected/non-revealed options","line":110,"detail":"return 'option-faded'","visibility":"detail-only","confidence":0.7},{"id":"getoptionclass_return_110_5","kind":"return","label":"Returns result","line":110,"detail":"return \"option-faded\";","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Queries.Quiz","NexusReader.Application.Commands.Quiz","NexusReader.Application.Abstractions.Services","MediatR"],"patterns":["Event subscription (quiz state updates)","Mediator/Command (SubmitAnswerCommand -> IMediator.Send)","Stateful UI component"],"domainConcepts":["Quiz","QuizQuestion","Answer/Submission"],"keyDetails":"Renders questions with options using Razor loops and conditionals (lines 15-47, 22-41); disables option buttons after an answer (line 34); uses injected QuizService for current quiz and hydration state; uses PlatformService for haptics and MediatR to dispatch answer submission command.","orchestrationMethods":[{"name":"SelectOptionAsync","line":68,"confidence":0.98,"reason":"Coordinates 8 downstream calls with 4 architectural actions.","actionKinds":["guard-clause","external-call","mapping","branch","fallback"],"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/KnowledgeCheck.razor","unknown","unknown","unknown","unknown","self"]},{"name":"GetOptionClass","line":100,"confidence":0.93,"reason":"Contains 4 architectural actions relevant to business execution.","actionKinds":["guard-clause","branch","return","mapping"],"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/KnowledgeCheck.razor"]}],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[{"methodName":"SelectOptionAsync","line":73,"kind":"external-call","detail":"PlatformService.VibrateAsync(40)","evidencePaths":["NexusReader.UI.Shared/Components/Molecules/KnowledgeCheck.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"SelectOptionAsync","line":68,"summary":"Coordinates 8 downstream calls with 4 architectural actions.","confidence":0.98,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/KnowledgeCheck.razor","unknown","unknown","unknown","unknown","self"]},{"kind":"orchestration-method","label":"GetOptionClass","line":100,"summary":"Contains 4 architectural actions relevant to business execution.","confidence":0.93,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/KnowledgeCheck.razor"]},{"kind":"external-call","label":"SelectOptionAsync","line":73,"summary":"PlatformService.VibrateAsync(40)","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/KnowledgeCheck.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Molecules__SelectionAiPanel.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Molecules__SelectionAiPanel.razor.json
new file mode 100644
index 0000000..fc30e70
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Molecules__SelectionAiPanel.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor","purpose":"Blazor UI component that shows an AI assistant bubble for a user text selection; it requests summaries/quizzes from a KnowledgeCoordinator and notifies the host when closed.","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["Frontend path heuristic","Razor markup rendering a UI bubble with buttons and injected services","Injects KnowledgeCoordinator and IReaderInteractionService and uses Blazor [Parameter] properties"]},"className":"SelectionAiPanel","methods":[{"name":"IsVisible","line":57,"endLine":57,"signature":"() -> bool","purpose":"Computed property that determines whether the panel should be rendered (selection present and coordinates available).","calls":[],"actions":[{"id":"guard-clause_57","kind":"guard-clause","label":"Visibility guard","line":57,"detail":"Used by Razor @if to control panel rendering","conditionSummary":"!string.IsNullOrEmpty(SelectedText) && Coordinates != null","outcomeLabels":["render","skip"],"visibility":"detail-only","confidence":0.7}]},{"name":"PositionBelow","line":60,"endLine":60,"signature":"() -> bool","purpose":"Computed property deciding whether the bubble should be positioned below the selection based on coordinate top value.","calls":[],"actions":[{"id":"guard-clause_60","kind":"guard-clause","label":"Position decision","line":60,"detail":"Affects CSS computed in PanelStyle","conditionSummary":"Coordinates != null && Coordinates.Top < 320","outcomeLabels":["position below","position above"],"visibility":"detail-only","confidence":0.7}]},{"name":"PanelStyle","line":69,"endLine":74,"signature":"() -> string","purpose":"Builds inline CSS to position the panel using Coordinates and PositionBelow, with formatting and clamping.","calls":[],"actions":[{"id":"mapping_69","kind":"mapping","label":"Compute CSS style","line":69,"detail":"Uses Coordinates.Top/Left/Width and PositionBelow; clamps left between 280 and 1600; formats with invariant culture","visibility":"detail-only","confidence":0.7}]},{"name":"OnParametersSet","line":62,"endLine":67,"signature":"() -> void","purpose":"Blazor lifecycle hook: logs parameter set, resets the previously fetched KnowledgePacket when selection changes.","calls":[],"actions":[{"id":"log_64","kind":"log","label":"Parameters set log","line":64,"detail":"Console.WriteLine with SelectedText length and Coordinates.Top","visibility":"detail-only","confidence":0.7},{"id":"state-reset_66","kind":"mapping","label":"Reset Packet","line":66,"detail":"Packet = null to clear prior results when parameters change","visibility":"detail-only","confidence":0.7}]},{"name":"RequestSummary","line":76,"endLine":86,"signature":"() -> Task","purpose":"Orchestrates requesting a summary and quiz for the current SelectedText (optionally including full page context), sets loading state and stores the returned KnowledgePacket on success.","calls":[{"targetFile":"unknown","targetMethod":"KnowledgeCoordinator.RequestSummaryAndQuizAsync","callLine":83,"paramSummary":"string: contextPrompt + SelectedText (includes FullPageContent if present)"}],"actions":[{"id":"state-change_78","kind":"mapping","label":"Set loading true","line":78,"detail":"IsLoading = true at start","visibility":"detail-only","confidence":0.7},{"id":"branch_79","kind":"branch","label":"Build context prompt","line":79,"detail":"Prepends ANALYSIS CONTEXT when FullPageContent present","conditionSummary":"!string.IsNullOrWhiteSpace(FullPageContent)","outcomeLabels":["include full page content","no context"],"visibility":"detail-only","confidence":0.7},{"id":"external-call_83","kind":"external-call","label":"Request summary/quiz","line":83,"detail":"Awaits Coordinator.RequestSummaryAndQuizAsync(...)","visibility":"detail-only","confidence":0.7},{"id":"branch_84","kind":"branch","label":"Store result or clear","line":84,"detail":"Packet = result.IsSuccess ? result.Value : null","conditionSummary":"result.IsSuccess","outcomeLabels":["store Packet","clear Packet"],"visibility":"detail-only","confidence":0.7},{"id":"state-change_85","kind":"mapping","label":"Set loading false","line":85,"detail":"IsLoading = false at end","visibility":"detail-only","confidence":0.7}]},{"name":"GenerateFullQuiz","line":88,"endLine":94,"signature":"() -> Task","purpose":"Requests a summary/quiz for the full page content and then closes the panel; updates loading state during the operation.","calls":[{"targetFile":"unknown","targetMethod":"KnowledgeCoordinator.RequestSummaryAndQuizAsync","callLine":91,"paramSummary":"FullPageContent string"},{"targetFile":"self","targetMethod":"CloseAsync","callLine":93,"paramSummary":"no params"}],"actions":[{"id":"state-change_90","kind":"mapping","label":"Set loading true","line":90,"detail":"IsLoading = true at start","visibility":"detail-only","confidence":0.7},{"id":"external-call_91","kind":"external-call","label":"Request full-page summary/quiz","line":91,"detail":"Awaits Coordinator.RequestSummaryAndQuizAsync(FullPageContent)","visibility":"detail-only","confidence":0.7},{"id":"state-change_92","kind":"mapping","label":"Set loading false","line":92,"detail":"IsLoading = false before closing","visibility":"detail-only","confidence":0.7},{"id":"control-flow_93","kind":"mapping","label":"Close panel","line":93,"detail":"Calls CloseAsync to notify host and clear state","visibility":"detail-only","confidence":0.7}]},{"name":"CloseAsync","line":96,"endLine":100,"signature":"() -> Task","purpose":"Clears current packet and notifies the IReaderInteractionService that the selection is cleared (used for closing/skipping).","calls":[{"targetFile":"unknown","targetMethod":"IReaderInteractionService.NotifyTextSelected","callLine":99,"paramSummary":"empty string, empty string, null"}],"actions":[{"id":"state-change_98","kind":"mapping","label":"Clear Packet","line":98,"detail":"Packet = null","visibility":"detail-only","confidence":0.7},{"id":"external-call_99","kind":"external-call","label":"Notify host selection cleared","line":99,"detail":"Await InteractionService.NotifyTextSelected(string.Empty, string.Empty, null!)","visibility":"detail-only","confidence":0.7},{"id":"closeasync_notification_99_0","kind":"notification","label":"Sends notification","line":99,"detail":"await InteractionService.NotifyTextSelected(string.Empty, string.Empty, null!);","visibility":"secondary-visible","confidence":0.83}]}],"types":[{"name":"SelectionAiPanel component parameters","kind":"model","line":51,"purpose":"Component parameters exposed to parent to provide selection text, block id, coordinates and full page content.","fields":[{"name":"SelectedText","type":"string","required":true,"line":52,"description":"The user-selected text to summarize"},{"name":"BlockId","type":"string","required":false,"line":53,"description":"Identifier of the block from which selection was made"},{"name":"Coordinates","type":"SelectionCoordinates?","required":false,"line":54,"description":"Optional coordinates (Top/Left/Width) used to position the bubble"},{"name":"FullPageContent","type":"string","required":false,"line":55,"description":"Optional full page text used as additional context for summarization"}]},{"name":"KnowledgePacket","kind":"type-alias","line":2,"purpose":"DTO returned by KnowledgeCoordinator containing summary/quiz data (imported from NexusReader.Application.DTOs.AI).","fields":[]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.UI.Shared.Services (injected: KnowledgeCoordinator, IReaderInteractionService)","NexusReader.Application.DTOs.AI (KnowledgePacket type)"],"patterns":["UI Component","Coordinator / Mediator (KnowledgeCoordinator)"],"domainConcepts":["AI-assisted summarization","Quiz generation","Selection-based interactions"],"keyDetails":"Razor UI component that orchestrates async calls to a KnowledgeCoordinator to produce summaries/quizzes, manages local loading/state and notifies the host via IReaderInteractionService when the selection is cleared; no persistence or retries are present in this file.","orchestrationMethods":[{"name":"RequestSummary","line":76,"confidence":0.89,"reason":"Contains 3 architectural actions relevant to business execution.","actionKinds":["mapping","branch","external-call"],"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor","unknown"]},{"name":"GenerateFullQuiz","line":88,"confidence":0.73,"reason":"Coordinates 2 downstream calls with 1 architectural actions.","actionKinds":["mapping","external-call"],"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor","unknown","self"]},{"name":"CloseAsync","line":96,"confidence":0.65,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["mapping","external-call","notification"],"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor","unknown"]}],"typedContracts":[{"name":"SelectionAiPanel component parameters","kind":"model","line":51,"fieldCount":4,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor"]}],"persistenceInteractions":[],"externalInteractions":[{"methodName":"RequestSummary","line":83,"kind":"external-call","detail":"Awaits Coordinator.RequestSummaryAndQuizAsync(...)","evidencePaths":["NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor"]},{"methodName":"GenerateFullQuiz","line":91,"kind":"external-call","detail":"Awaits Coordinator.RequestSummaryAndQuizAsync(FullPageContent)","evidencePaths":["NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor"]},{"methodName":"CloseAsync","line":99,"kind":"external-call","detail":"Await InteractionService.NotifyTextSelected(string.Empty, string.Empty, null!)","evidencePaths":["NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"RequestSummary","line":76,"summary":"Contains 3 architectural actions relevant to business execution.","confidence":0.89,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor","unknown"]},{"kind":"orchestration-method","label":"GenerateFullQuiz","line":88,"summary":"Coordinates 2 downstream calls with 1 architectural actions.","confidence":0.73,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor","unknown","self"]},{"kind":"orchestration-method","label":"CloseAsync","line":96,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.65,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor","unknown"]},{"kind":"typed-contract","label":"SelectionAiPanel component parameters","line":51,"summary":"model with 4 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor"]},{"kind":"external-call","label":"RequestSummary","line":83,"summary":"Awaits Coordinator.RequestSummaryAndQuizAsync(...)","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor"]},{"kind":"external-call","label":"GenerateFullQuiz","line":91,"summary":"Awaits Coordinator.RequestSummaryAndQuizAsync(FullPageContent)","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor"]},{"kind":"external-call","label":"CloseAsync","line":99,"summary":"Await InteractionService.NotifyTextSelected(string.Empty, string.Empty, null!)","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__BookIngestionModal.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__BookIngestionModal.razor.json
new file mode 100644
index 0000000..33fe135
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__BookIngestionModal.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor","purpose":"Razor UI component that provides a modal for uploading .epub files, extracting EPUB metadata client-side, verifying/editing that metadata, and posting an ingest request to the backend library API.","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["Middleware pattern","Frontend path heuristic","Razor markup with modal UI, InputFile and buttons (lines 13-100)","Uses [Parameter] IsOpen and EventCallback IsOpenChanged (lines 108-115)","Performs Http POST to \"api/library/ingest\" (line 216) and injects services (lines 6-10)"]},"className":"BookIngestionModal","methods":[{"name":"CloseModal","line":128,"endLine":133,"signature":"() -> Task","purpose":"Closes the modal, resets internal state, and notifies parent via IsOpenChanged callback.","calls":[{"targetFile":"self","targetMethod":"Reset","callLine":131,"paramSummary":"none"}],"actions":[{"id":"state-change_130","kind":"mapping","label":"Set IsOpen=false","line":130,"detail":"IsOpen = false","visibility":"detail-only","confidence":0.7},{"id":"call_131","kind":"mapping","label":"Reset component state","line":131,"detail":"Calls Reset() to clear flags and buffers","visibility":"detail-only","confidence":0.7},{"id":"invoke-callback_132","kind":"mapping","label":"Notify parent that modal closed","line":132,"detail":"await IsOpenChanged.InvokeAsync(false) (framework EventCallback)","visibility":"detail-only","confidence":0.7}]},{"name":"Reset","line":135,"endLine":144,"signature":"() -> void","purpose":"Resets UI state and clears temporary buffers and error messages.","calls":[],"actions":[{"id":"state-change_137","kind":"mapping","label":"Clear parsing/verification/ingesting flags","line":137,"detail":"IsParsing = false; IsVerifying = false; IsIngesting = false","visibility":"detail-only","confidence":0.7},{"id":"data-clear_140","kind":"mapping","label":"Null metadata and error message","line":140,"detail":"Metadata = null; ErrorMessage = null","visibility":"detail-only","confidence":0.7},{"id":"data-clear_142","kind":"mapping","label":"Clear drag flag and uploaded bytes","line":142,"detail":"_isDragging = false; _epubBytes = null","visibility":"detail-only","confidence":0.7}]},{"name":"OnDragEnter","line":146,"endLine":146,"signature":"() -> void","purpose":"Set dragging UI state when a file is dragged over the drop-zone.","calls":[],"actions":[{"id":"state-change_146","kind":"mapping","label":"Set drag-over flag","line":146,"detail":"_isDragging = true","visibility":"detail-only","confidence":0.7}]},{"name":"OnDragLeave","line":147,"endLine":147,"signature":"() -> void","purpose":"Clear dragging UI state when drag leaves the drop-zone.","calls":[],"actions":[{"id":"state-change_147","kind":"mapping","label":"Clear drag-over flag","line":147,"detail":"_isDragging = false","visibility":"detail-only","confidence":0.7}]},{"name":"HandleFileSelected","line":149,"endLine":196,"signature":"(e: InputFileChangeEventArgs) -> Task","purpose":"Handles a selected/dropped file: validates extension/size, reads bytes, calls a metadata extractor, and updates verification UI or errors.","calls":[{"targetFile":"NexusReader.Application.Abstractions.Services/IEpubMetadataExtractor","targetMethod":"ExtractMetadataAsync","callLine":174,"paramSummary":"memoryStream (stream of uploaded EPUB content)"}],"actions":[{"id":"state-change_151","kind":"mapping","label":"Clear drag flag","line":151,"detail":"_isDragging = false","visibility":"detail-only","confidence":0.7},{"id":"handlefileselected_guard-clause_154_0","kind":"guard-clause","label":"Guards early exit or rejection path","line":154,"detail":"if (file == null) return;","conditionSummary":"file == null","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"guard-clause_154","kind":"guard-clause","label":"Return if no file provided","line":154,"detail":"if (file == null) return;","conditionSummary":"file == null","outcomeLabels":["return"],"visibility":"detail-only","confidence":0.7},{"id":"handlefileselected_branch_156_1","kind":"branch","label":"Evaluates branch condition","line":156,"detail":"if (!file.Name.EndsWith(\".epub\", StringComparison.OrdinalIgnoreCase))","conditionSummary":"!file.Name.EndsWith(\".epub\", StringComparison.OrdinalIgnoreCase)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_156","kind":"guard-clause","label":"Reject non-.epub files","line":156,"detail":"ErrorMessage = \"Only .epub files are supported.\"; return;","conditionSummary":"!file.Name.EndsWith('.epub')","outcomeLabels":["set ErrorMessage","return"],"visibility":"detail-only","confidence":0.7},{"id":"handlefileselected_return_159_2","kind":"return","label":"Returns result","line":159,"detail":"return;","visibility":"detail-only","confidence":0.7},{"id":"state-change_163","kind":"mapping","label":"Enter parsing state and trigger UI refresh","line":163,"detail":"IsParsing = true; StateHasChanged();","visibility":"detail-only","confidence":0.7},{"id":"io-read_168","kind":"mapping","label":"Read uploaded file into memory with size cap","line":168,"detail":"OpenReadStream(MaxFileSize) and CopyToAsync into MemoryStream; _epubBytes = memoryStream.ToArray()","visibility":"detail-only","confidence":0.7},{"id":"external-call_174","kind":"external-call","label":"Extract metadata from EPUB stream","line":174,"detail":"Calls injected MetadataExtractor.ExtractMetadataAsync(memoryStream)","visibility":"detail-only","confidence":0.7},{"id":"handlefileselected_branch_176_3","kind":"branch","label":"Evaluates branch condition","line":176,"detail":"if (result.IsSuccess)","conditionSummary":"result.IsSuccess","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_176","kind":"branch","label":"Handle extractor success/failure","line":176,"detail":"If result.IsSuccess => set Metadata and IsVerifying=true; else set ErrorMessage from result.Errors","visibility":"detail-only","confidence":0.7},{"id":"handlefileselected_fallback_181_4","kind":"fallback","label":"Falls back to alternate path","line":181,"detail":"else","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"handlefileselected_repository-read_183_5","kind":"repository-read","label":"Reads repository or persistence state","line":183,"detail":"ErrorMessage = result.Errors.FirstOrDefault()?.Message ?? \"Failed to parse EPUB.\";","visibility":"secondary-visible","confidence":0.86},{"id":"error-handling_186","kind":"mapping","label":"Catch extraction exceptions and log/set error","line":186,"detail":"catch (Exception) => Logger.LogError and set ErrorMessage","visibility":"detail-only","confidence":0.7},{"id":"handlefileselected_log_188_6","kind":"log","label":"Logs runtime state","line":188,"detail":"Logger.LogError(ex, \"Error uploading EPUB\");","visibility":"secondary-visible","confidence":0.92},{"id":"finally_191","kind":"mapping","label":"Clear parsing state and refresh UI","line":191,"detail":"IsParsing = false; StateHasChanged();","visibility":"detail-only","confidence":0.7}]},{"name":"SaveToLibrary","line":198,"endLine":241,"signature":"() -> Task","purpose":"Constructs an ingest request from the verified metadata and current EPUB bytes, posts it to the backend API, and navigates to the created book on success.","calls":[{"targetFile":"self","targetMethod":"CloseModal","callLine":223,"paramSummary":"none"},{"targetFile":"unknown","targetMethod":"NavigateToBook","callLine":224,"paramSummary":"result.Id (Guid)"}],"actions":[{"id":"savetolibrary_guard-clause_200_0","kind":"guard-clause","label":"Guards early exit or rejection path","line":200,"detail":"if (Metadata == null || _epubBytes == null) return;","conditionSummary":"Metadata == null || _epubBytes == null","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"guard-clause_200","kind":"guard-clause","label":"No-op if metadata or bytes missing","line":200,"detail":"Prevents ingest when required data absent","conditionSummary":"Metadata == null || _epubBytes == null","outcomeLabels":["return"],"visibility":"detail-only","confidence":0.7},{"id":"state-change_202","kind":"mapping","label":"Enter ingesting state and clear error","line":202,"detail":"IsIngesting = true; ErrorMessage = null; StateHasChanged();","visibility":"detail-only","confidence":0.7},{"id":"construct_208","kind":"mapping","label":"Create IngestEbookRequest DTO","line":208,"detail":"Populate title, author, optional base64 cover, base64 epub bytes, description","visibility":"detail-only","confidence":0.7},{"id":"external-call_216","kind":"external-call","label":"POST ingest request to server API","line":216,"detail":"POST to \"api/library/ingest\" with request (Http.PostAsJsonAsync) - framework HTTP call","visibility":"detail-only","confidence":0.7},{"id":"savetolibrary_branch_218_1","kind":"branch","label":"Evaluates branch condition","line":218,"detail":"if (response.IsSuccessStatusCode)","conditionSummary":"response.IsSuccessStatusCode","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_218","kind":"branch","label":"Handle HTTP response success/failure","line":218,"detail":"If success => parse IngestResult then close modal and navigate; else set ErrorMessage from response body","visibility":"detail-only","confidence":0.7},{"id":"savetolibrary_branch_221_2","kind":"branch","label":"Evaluates branch condition","line":221,"detail":"if (result != null)","conditionSummary":"result != null","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"savetolibrary_fallback_227_3","kind":"fallback","label":"Falls back to alternate path","line":227,"detail":"else","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"error-handling_232","kind":"mapping","label":"Catch ingestion exceptions and log/set error","line":232,"detail":"catch (Exception) => Logger.LogError and set ErrorMessage","visibility":"detail-only","confidence":0.7},{"id":"savetolibrary_log_234_4","kind":"log","label":"Logs runtime state","line":234,"detail":"Logger.LogError(ex, \"Error during ingestion\");","visibility":"secondary-visible","confidence":0.92},{"id":"finally_237","kind":"mapping","label":"Exit ingesting state and refresh UI","line":237,"detail":"IsIngesting = false; StateHasChanged();","visibility":"detail-only","confidence":0.7}]},{"name":"DisposeAsync","line":246,"endLine":251,"signature":"() -> ValueTask","purpose":"Implements IAsyncDisposable to clear the large byte buffer so GC can reclaim memory if the component is cached.","calls":[],"actions":[{"id":"data-clear_249","kind":"mapping","label":"Null large buffer for GC","line":249,"detail":"_epubBytes = null","visibility":"detail-only","confidence":0.7},{"id":"disposeasync_return_250_0","kind":"return","label":"Returns result","line":250,"detail":"return ValueTask.CompletedTask;","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"IngestResult","kind":"dto","line":244,"purpose":"Represents the server response payload containing the created book Id after a successful ingest.","fields":[{"name":"Id","type":"Guid","required":true,"line":244,"description":"Identifier of the ingested book"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Abstractions.Services/IEpubMetadataExtractor","NexusReader.Application.Commands.Library (IngestEbookRequest)","IReaderNavigationService (injected navigation service)"],"patterns":["File Upload / Drag-and-Drop","Client-side form verification","Asynchronous UI orchestration (StateHasChanged, parsing/ingestion states)","Client-to-API ingestion"],"domainConcepts":["Book","EPUB metadata","Library ingestion"],"keyDetails":"MaxFileSize is 50 MB (line 126). Uploaded EPUB bytes are stored in _epubBytes and explicitly cleared in DisposeAsync to aid GC. Metadata extraction is delegated to an injected IEpubMetadataExtractor; ingestion is posted as base64 payload to api/library/ingest.","orchestrationMethods":[{"name":"HandleFileSelected","line":149,"confidence":0.98,"reason":"Contains 6 architectural actions relevant to business execution.","actionKinds":["mapping","guard-clause","branch","return","external-call","fallback","repository-read","log"],"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor","NexusReader.Application.Abstractions.Services/IEpubMetadataExtractor"]},{"name":"SaveToLibrary","line":198,"confidence":0.98,"reason":"Coordinates 2 downstream calls with 5 architectural actions.","actionKinds":["guard-clause","mapping","external-call","branch","fallback","log"],"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor","self","unknown"]}],"typedContracts":[{"name":"IngestResult","kind":"dto","line":244,"fieldCount":1,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor"]}],"persistenceInteractions":[{"methodName":"HandleFileSelected","line":183,"kind":"persistence-read","detail":"ErrorMessage = result.Errors.FirstOrDefault()?.Message ?? \"Failed to parse EPUB.\";","evidencePaths":["NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor"]}],"externalInteractions":[{"methodName":"HandleFileSelected","line":174,"kind":"external-call","detail":"Calls injected MetadataExtractor.ExtractMetadataAsync(memoryStream)","evidencePaths":["NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor"]},{"methodName":"SaveToLibrary","line":216,"kind":"external-call","detail":"POST to \"api/library/ingest\" with request (Http.PostAsJsonAsync) - framework HTTP call","evidencePaths":["NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"HandleFileSelected","line":149,"summary":"Contains 6 architectural actions relevant to business execution.","confidence":0.98,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor","NexusReader.Application.Abstractions.Services/IEpubMetadataExtractor"]},{"kind":"orchestration-method","label":"SaveToLibrary","line":198,"summary":"Coordinates 2 downstream calls with 5 architectural actions.","confidence":0.98,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor","self","unknown"]},{"kind":"typed-contract","label":"IngestResult","line":244,"summary":"dto with 1 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor"]},{"kind":"persistence","label":"HandleFileSelected","line":183,"summary":"ErrorMessage = result.Errors.FirstOrDefault()?.Message ?? \"Failed to parse EPUB.\";","confidence":0.82,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor"]},{"kind":"external-call","label":"HandleFileSelected","line":174,"summary":"Calls injected MetadataExtractor.ExtractMetadataAsync(memoryStream)","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor"]},{"kind":"external-call","label":"SaveToLibrary","line":216,"summary":"POST to \"api/library/ingest\" with request (Http.PostAsJsonAsync) - framework HTTP call","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__CurrentReadingWidget.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__CurrentReadingWidget.razor.json
new file mode 100644
index 0000000..db2ff73
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__CurrentReadingWidget.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor","purpose":"Blazor UI component that displays the user's currently reading book (cover, progress, excerpt) and provides actions to continue reading or navigate to the library.","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["Frontend path heuristic","Razor markup with @code block and [Parameter] attribute","Injects NavigationManager and renders UI (buttons, conditional branches)","References NexusIcon and DTO from Application layer"]},"className":"CurrentReadingWidget","methods":[{"name":"Render","line":5,"endLine":67,"signature":"() -> RenderFragment","purpose":"Renders the current-reading card UI, with two major branches: show book details when Book != null, otherwise show an empty-state prompting navigation to the library.","calls":[{"targetFile":"unknown","targetMethod":"NexusIcon","callLine":46,"paramSummary":"Name=\"arrow-right\", Size=16 (component render)"},{"targetFile":"unknown","targetMethod":"NexusIcon","callLine":56,"paramSummary":"Name=\"book-open\", Size=48 (component render)"},{"targetFile":"self","targetMethod":"HandleContinueReading","callLine":44,"paramSummary":"none (button onclick)"}],"actions":[{"id":"branch_6","kind":"branch","label":"Conditional render: Book present vs empty-state","line":6,"detail":"If Book != null renders book card (lines 6-51); else renders empty-state (lines 52-66).","visibility":"detail-only","confidence":0.7},{"id":"render_branch_6_0","kind":"branch","label":"Evaluates branch condition","line":6,"detail":"@if (Book != null)","conditionSummary":"Book != null","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"compute_22","kind":"mapping","label":"Compute progress percentage string and width","line":22,"detail":"Uses Book.Progress.ToString(\"F0\") for display and inline style width on .progress-bar-fill at line 25.","visibility":"detail-only","confidence":0.7},{"id":"render_branch_29_1","kind":"branch","label":"Evaluates branch condition","line":29,"detail":"@if (!string.IsNullOrEmpty(Book.Description))","conditionSummary":"!string.IsNullOrEmpty(Book.Description)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_29","kind":"branch","label":"Optional description","line":29,"detail":"Renders book excerpt if Description populated, otherwise renders a placeholder paragraph (lines 29-41).","conditionSummary":"!string.IsNullOrEmpty(Book.Description)","outcomeLabels":["show excerpt","show promotional empty excerpt"],"visibility":"detail-only","confidence":0.7},{"id":"render_fallback_35_2","kind":"fallback","label":"Falls back to alternate path","line":35,"detail":"else","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"render_fallback_52_3","kind":"fallback","label":"Falls back to alternate path","line":52,"detail":"else","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"ui-action_62","kind":"mapping","label":"Empty-state navigate-to-library onclick","line":62,"detail":"Inline onclick lambda calls NavigationManager.NavigateTo(\"/library\").","visibility":"detail-only","confidence":0.7}]},{"name":"HandleContinueReading","line":72,"endLine":78,"signature":"() -> void","purpose":"Event handler that navigates to the reader page for the current Book using its Id and LastChapterIndex when Book is present.","calls":[],"actions":[{"id":"handlecontinuereading_branch_74_0","kind":"branch","label":"Evaluates branch condition","line":74,"detail":"if (Book != null)","conditionSummary":"Book != null","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_74","kind":"guard-clause","label":"Guard: require Book","line":74,"detail":"Returns/do nothing when Book is null; otherwise proceeds to navigation.","conditionSummary":"Book != null","outcomeLabels":["no-op","navigate"],"visibility":"detail-only","confidence":0.7},{"id":"external-call_76","kind":"external-call","label":"Navigate to reader","line":76,"detail":"Calls NavigationManager.NavigateTo($\"/reader/{Book.Id}?chapter={Book.LastChapterIndex}\") to change route.","visibility":"detail-only","confidence":0.7}]},{"name":"Anonymous onclick -> NavigateToLibrary","line":62,"endLine":62,"signature":"() -> void","purpose":"Inline onclick lambda in the empty-state button that navigates to /library.","calls":[],"actions":[{"id":"external-call_62","kind":"external-call","label":"Navigate to /library","line":62,"detail":"Calls NavigationManager.NavigateTo(\"/library\") from inline lambda in markup.","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"LastReadBookDto","kind":"dto","line":70,"purpose":"DTO representing a summary of the user's last-read book used as the component parameter.","fields":[{"name":"Id","type":"string","required":true,"line":70,"description":"Book identifier used to navigate to reader (/reader/{Id})."},{"name":"CoverUrl","type":"string?","required":false,"line":70,"description":"URL of the book cover (falls back to placeholder if null)."},{"name":"Title","type":"string","required":true,"line":70,"description":"Book title displayed in the card."},{"name":"Author","type":"object (Name:string)","required":true,"line":70,"description":"Author object with Name used in the UI (shown as 'by Author.Name')."},{"name":"LastChapter","type":"string","required":true,"line":70,"description":"Name/title of the last read chapter (displayed in progress header)."},{"name":"LastChapterIndex","type":"int","required":true,"line":70,"description":"Numeric index used in query param when navigating to the reader."},{"name":"Progress","type":"double","required":true,"line":70,"description":"Progress percentage (0-100) used for display and progress-bar width."},{"name":"Description","type":"string?","required":false,"line":70,"description":"Optional book excerpt/description displayed if present."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.DTOs.User (LastReadBookDto)","NexusReader.UI.Shared.Components.Atoms (NexusIcon component)","Microsoft.AspNetCore.Components.NavigationManager (injected framework service)"],"patterns":["Blazor Component","Event-handler"],"domainConcepts":["Book","ReadingSession","Progress"],"keyDetails":"Component exposes a [Parameter] Book (LastReadBookDto). Primary runtime behaviors: conditional rendering based on Book presence, progress computation for UI, onclick navigation either via local handler (to /reader/{id}) or inline lambda (to /library). External navigation uses injected NavigationManager.","orchestrationMethods":[{"name":"Render","line":5,"confidence":0.98,"reason":"Coordinates 3 downstream calls with 6 architectural actions.","actionKinds":["branch","mapping","fallback"],"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor","unknown","unknown","self"]},{"name":"HandleContinueReading","line":72,"confidence":0.69,"reason":"Contains 2 architectural actions relevant to business execution.","actionKinds":["branch","guard-clause","external-call"],"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor"]},{"name":"Anonymous onclick -> NavigateToLibrary","line":62,"confidence":0.57,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["external-call"],"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor"]}],"typedContracts":[{"name":"LastReadBookDto","kind":"dto","line":70,"fieldCount":8,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor"]}],"persistenceInteractions":[],"externalInteractions":[{"methodName":"HandleContinueReading","line":76,"kind":"external-call","detail":"Calls NavigationManager.NavigateTo($\"/reader/{Book.Id}?chapter={Book.LastChapterIndex}\") to change route.","evidencePaths":["NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor"]},{"methodName":"Anonymous onclick -> NavigateToLibrary","line":62,"kind":"external-call","detail":"Calls NavigationManager.NavigateTo(\"/library\") from inline lambda in markup.","evidencePaths":["NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"Render","line":5,"summary":"Coordinates 3 downstream calls with 6 architectural actions.","confidence":0.98,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor","unknown","unknown","self"]},{"kind":"orchestration-method","label":"HandleContinueReading","line":72,"summary":"Contains 2 architectural actions relevant to business execution.","confidence":0.69,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor"]},{"kind":"orchestration-method","label":"Anonymous onclick -> NavigateToLibrary","line":62,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.57,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor"]},{"kind":"typed-contract","label":"LastReadBookDto","line":70,"summary":"dto with 8 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor"]},{"kind":"external-call","label":"HandleContinueReading","line":76,"summary":"Calls NavigationManager.NavigateTo($\"/reader/{Book.Id}?chapter={Book.LastChapterIndex}\") to change route.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor"]},{"kind":"external-call","label":"Anonymous onclick -> NavigateToLibrary","line":62,"summary":"Calls NavigationManager.NavigateTo(\"/library\") from inline lambda in markup.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__GlobalIntelligencePanel.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__GlobalIntelligencePanel.razor.json
new file mode 100644
index 0000000..8ac1276
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__GlobalIntelligencePanel.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor","purpose":"Blazor UI component that renders a \"Global Intelligence\" semantic-search panel, accepts search results and loading state from a parent, exposes an event callback to request searches, and displays conditional UI (loading, results loop, empty-state).","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["Middleware pattern","Frontend path heuristic","Razor markup with UI elements and child component NexusSearchBox","Blazor [Parameter] properties and EventCallback usage"]},"className":"GlobalIntelligencePanel","methods":[{"name":"Render (component markup)","line":5,"endLine":47,"signature":"() -> RenderFragment","purpose":"Renders the Global Intelligence panel UI; performs conditional rendering (loading / results list / empty state) and iterates Results to present search snippets.","calls":[{"targetFile":"self","targetMethod":"HandleSearch (bound to NexusSearchBox.OnSearch)","callLine":11,"paramSummary":"query string from child NexusSearchBox component"}],"actions":[{"id":"child-component_11","kind":"mapping","label":"NexusSearchBox usage","line":11,"detail":"Child component emits OnSearch which is bound to HandleSearch","visibility":"detail-only","confidence":0.7},{"id":"render_component_markup_branch_14_0","kind":"branch","label":"Evaluates branch condition","line":14,"detail":"@if (IsLoading)","conditionSummary":"IsLoading","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_14","kind":"branch","label":"Loading branch","line":14,"conditionSummary":"IsLoading == true","outcomeLabels":["show loading UI","skip"],"visibility":"detail-only","confidence":0.7},{"id":"render_component_markup_branch_21_1","kind":"branch","label":"Evaluates branch condition","line":21,"detail":"else if (Results != null && Results.Any())","conditionSummary":"Results != null && Results.Any()","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"render_component_markup_fallback_21_2","kind":"fallback","label":"Falls back to alternate path","line":21,"detail":"else if (Results != null && Results.Any())","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"branch_21","kind":"branch","label":"Results branch","line":21,"conditionSummary":"Results != null && Results.Any()","outcomeLabels":["render foreach Results","skip"],"visibility":"detail-only","confidence":0.7},{"id":"loop_23","kind":"loop","label":"Iterate Results","line":23,"detail":"foreach (var result in Results) renders each search-result-item and computes relevance percentage","visibility":"detail-only","confidence":0.7},{"id":"render_component_markup_loop_23_3","kind":"loop","label":"Repeats work over a collection or condition","line":23,"detail":"@foreach (var result in Results)","conditionSummary":"var result in Results","loopTargetLine":23,"loopExitSummary":"Leaves the loop when the condition no longer holds.","visibility":"primary-visible","confidence":0.86},{"id":"calculation_27","kind":"mapping","label":"Relevance percentage","line":27,"detail":"Math.Round(result.RelevanceScore * 100) used to display percent relevance","visibility":"detail-only","confidence":0.7},{"id":"render_component_markup_branch_28_4","kind":"branch","label":"Evaluates branch condition","line":28,"detail":"@if (!string.IsNullOrEmpty(result.SourceBookTitle))","conditionSummary":"!string.IsNullOrEmpty(result.SourceBookTitle)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_39","kind":"branch","label":"Empty-state branch after search","line":39,"conditionSummary":"HasSearched == true && (Results == null || !Results.Any())","outcomeLabels":["show empty state","skip"],"visibility":"detail-only","confidence":0.7},{"id":"render_component_markup_branch_39_5","kind":"branch","label":"Evaluates branch condition","line":39,"detail":"else if (HasSearched)","conditionSummary":"HasSearched","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"render_component_markup_fallback_39_6","kind":"fallback","label":"Falls back to alternate path","line":39,"detail":"else if (HasSearched)","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84}]},{"name":"HandleSearch","line":56,"endLine":60,"signature":"(query: string) -> Task","purpose":"Called when user performs a search in the child NexusSearchBox: marks that a search occurred and forwards the query to the parent via EventCallback.","calls":[{"targetFile":"unknown","targetMethod":"OnPerformSearch.InvokeAsync","callLine":59,"paramSummary":"query string forwarded to parent handler"}],"actions":[{"id":"state-change_58","kind":"mapping","label":"Set HasSearched","line":58,"detail":"HasSearched = true to enable empty-state after search","visibility":"detail-only","confidence":0.7},{"id":"event-invoke_59","kind":"mapping","label":"Invoke parent search handler","line":59,"detail":"await OnPerformSearch.InvokeAsync(query) - delegates search orchestration to parent consumer","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.DTOs.AI (SemanticSearchResultDto referenced at line 1 and used as Parameter type)","NexusReader.UI.Shared.Components.Atoms (NexusSearchBox referenced at line 2 and used at line 11)"],"patterns":["Blazor Component","EventCallback (parent-driven orchestration)"],"domainConcepts":["Semantic search","SemanticSearchResult (Snippet, RelevanceScore, SourceBookTitle)","Relevance percentage"],"keyDetails":"Component is presentation-only: it does not perform networking or persistence itself; it relies on parent via OnPerformSearch EventCallback to perform the actual search. Runtime behavior centers on three UI states (loading, results loop, empty after search) and a single orchestration point (HandleSearch -> OnPerformSearch). Public parameters: Results (List<SemanticSearchResultDto>), IsLoading (bool), OnPerformSearch (EventCallback<string>).","orchestrationMethods":[{"name":"Render (component markup)","line":5,"confidence":0.98,"reason":"Contains 11 architectural actions relevant to business execution.","actionKinds":["mapping","branch","fallback","loop"],"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor","self"]}],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"orchestration-method","label":"Render (component markup)","line":5,"summary":"Contains 11 architectural actions relevant to business execution.","confidence":0.98,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor","self"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__KnowledgeGraph.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__KnowledgeGraph.razor.json
new file mode 100644
index 0000000..cefd058
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__KnowledgeGraph.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Components/Organisms/KnowledgeGraph.razor","purpose":"Blazor UI component that mounts and coordinates a JavaScript-based knowledge graph visualization, wiring app services/events (graph data, focus mode, node interactions) to the JS module and exposing node selection to parent components.","classification":{"role":"ui-component","layer":"frontend","confidence":0.94,"evidence":["Middleware pattern","Frontend path heuristic","Razor component (KnowledgeGraph.razor) with @code block and component lifecycle methods","Injects IJSRuntime and UI services, imports a JS module path './_content/.../knowledgeGraph.js'","Implements IAsyncDisposable and subscribes/unsubscribes to service events"]},"className":"KnowledgeGraph","methods":[{"name":"OnInitialized","line":41,"endLine":47,"signature":"() -> void","purpose":"Subscribe local handlers to FocusMode and GraphService events during component initialization.","calls":[{"targetFile":"self","targetMethod":"HandleFocusSimulation","callLine":43,"paramSummary":"delegate subscription (+=)"},{"targetFile":"unknown","targetMethod":"GraphService.OnGraphUpdated (event)","callLine":44,"paramSummary":"subscribe HandleGraphUpdate"},{"targetFile":"unknown","targetMethod":"GraphService.OnActiveNodeChanged (event)","callLine":45,"paramSummary":"subscribe HandleActiveNodeChange"},{"targetFile":"unknown","targetMethod":"GraphService.OnLoadingChanged (event)","callLine":46,"paramSummary":"subscribe HandleLoadingChange"}],"actions":[{"id":"event-subscription_43","kind":"mapping","label":"Subscribe to focus and graph service events","line":43,"detail":"Registers event handlers on injected services","visibility":"detail-only","confidence":0.7}]},{"name":"HandleGraphUpdate","line":49,"endLine":63,"signature":"() -> Task","purpose":"Push updated graph data to the JS graph module or clear it if no data, then request UI refresh.","calls":[{"targetFile":"./_content/NexusReader.UI.Shared/js/knowledgeGraph.js","targetMethod":"clear","callLine":55,"paramSummary":"no params"},{"targetFile":"./_content/NexusReader.UI.Shared/js/knowledgeGraph.js","targetMethod":"updateData","callLine":59,"paramSummary":"GraphService.CurrentGraphData"},{"targetFile":"unknown","targetMethod":"GraphService.CurrentGraphData (property)","callLine":53,"paramSummary":"reads current graph model"}],"actions":[{"id":"handlegraphupdate_guard-clause_51_0","kind":"guard-clause","label":"Guards early exit or rejection path","line":51,"detail":"if (_module == null) return;","conditionSummary":"_module == null","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"guard-clause_51","kind":"guard-clause","label":"No-op when JS module missing","line":51,"detail":"if (_module == null) return;","conditionSummary":"_module == null","outcomeLabels":["return","continue"],"visibility":"detail-only","confidence":0.7},{"id":"branch_53","kind":"branch","label":"Clear or update JS graph based on data presence","line":53,"detail":"invokes different JS functions","conditionSummary":"GraphService.CurrentGraphData == null","outcomeLabels":["clear","updateData"],"visibility":"detail-only","confidence":0.7},{"id":"handlegraphupdate_branch_53_1","kind":"branch","label":"Evaluates branch condition","line":53,"detail":"if (GraphService.CurrentGraphData == null)","conditionSummary":"GraphService.CurrentGraphData == null","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"external-call_55","kind":"external-call","label":"Invoke JS functions","line":55,"detail":"_module.InvokeVoidAsync('clear'|'updateData', ...)","visibility":"detail-only","confidence":0.7},{"id":"handlegraphupdate_fallback_57_2","kind":"fallback","label":"Falls back to alternate 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missing","line":67,"detail":"if (_module == null) return;","conditionSummary":"_module == null","outcomeLabels":["return","continue"],"visibility":"detail-only","confidence":0.7},{"id":"external-call_68","kind":"external-call","label":"Set active node in JS","line":68,"detail":"_module.InvokeVoidAsync('setActiveNode', nodeId)","visibility":"detail-only","confidence":0.7}]},{"name":"HandleLoadingChange","line":71,"endLine":74,"signature":"(isLoading: bool) -> Task","purpose":"React to GraphService loading changes by triggering a UI refresh.","calls":[],"actions":[{"id":"ui-refresh_73","kind":"mapping","label":"Trigger StateHasChanged","line":73,"detail":"InvokeAsync(StateHasChanged)","visibility":"detail-only","confidence":0.7}]},{"name":"OnAfterRenderAsync","line":76,"endLine":87,"signature":"(firstRender: bool) -> Task","purpose":"On first render, initialize the JS graph module and synchronize initial graph data if present.","calls":[{"targetFile":"self","targetMethod":"InitializeGraphAsync","callLine":80,"paramSummary":"no params"},{"targetFile":"self","targetMethod":"HandleGraphUpdate","callLine":84,"paramSummary":"no params"},{"targetFile":"unknown","targetMethod":"GraphService.CurrentGraphData (property)","callLine":82,"paramSummary":"checked for null"}],"actions":[{"id":"onafterrenderasync_branch_78_0","kind":"branch","label":"Evaluates branch condition","line":78,"detail":"if (firstRender)","conditionSummary":"firstRender","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_78","kind":"guard-clause","label":"Only runs on first render","line":78,"detail":"if (firstRender) { ... }","conditionSummary":"firstRender == true","outcomeLabels":["init","skip"],"visibility":"detail-only","confidence":0.7},{"id":"orchestration_80","kind":"mapping","label":"Initialize then sync data","line":80,"detail":"Calls InitializeGraphAsync and then 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DotNetObjectReference"},{"targetFile":"unknown","targetMethod":"GraphService.CurrentGraphData (property)","callLine":93,"paramSummary":"initial graph model passed to JS"}],"actions":[{"id":"external-call_91","kind":"external-call","label":"Import JS module","line":91,"detail":"JS.InvokeAsync('import', '<path>') assigns _module","visibility":"detail-only","confidence":0.7},{"id":"resource-creation_92","kind":"mapping","label":"Create DotNetObjectReference for JS callbacks","line":92,"detail":"DotNetObjectReference.Create(this)","visibility":"detail-only","confidence":0.7},{"id":"external-call_93","kind":"external-call","label":"Mount graph","line":93,"detail":"_module.InvokeVoidAsync('mount', ContainerId, data, _dotNetHelper)","visibility":"detail-only","confidence":0.7}]},{"name":"ZoomIn","line":96,"endLine":96,"signature":"() -> Task","purpose":"Ask JS module to zoom in the graph view; safe no-op if module missing.","calls":[{"targetFile":"./_content/NexusReader.UI.Shared/js/knowledgeGraph.js","targetMethod":"zoomIn","callLine":96,"paramSummary":"no params (invoked if _module != null)"}],"actions":[{"id":"external-call_96","kind":"external-call","label":"Zoom in via JS","line":96,"detail":"_module?.InvokeVoidAsync('zoomIn') ?? 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CompletedTask","visibility":"detail-only","confidence":0.7}]},{"name":"ZoomReset","line":98,"endLine":98,"signature":"() -> Task","purpose":"Ask JS module to reset zoom; safe no-op if module missing.","calls":[{"targetFile":"./_content/NexusReader.UI.Shared/js/knowledgeGraph.js","targetMethod":"zoomReset","callLine":98,"paramSummary":"no params (invoked if _module != null)"}],"actions":[{"id":"external-call_98","kind":"external-call","label":"Reset zoom via JS","line":98,"detail":"_module?.InvokeVoidAsync('zoomReset') ?? CompletedTask","visibility":"detail-only","confidence":0.7}]},{"name":"OnNodeClicked","line":101,"endLine":109,"signature":"(nodeId: string) -> Task","purpose":"JS-invokable callback: notify app services that a node was clicked and forward that event to any parent via EventCallback.","calls":[{"targetFile":"unknown","targetMethod":"InteractionService.NotifyNodeSelected","callLine":103,"paramSummary":"nodeId"},{"targetFile":"self","targetMethod":"OnNodeSelected.InvokeAsync","callLine":107,"paramSummary":"nodeId (if HasDelegate true)"}],"actions":[{"id":"external-call_103","kind":"external-call","label":"Notify interaction service of selection","line":103,"detail":"InteractionService.NotifyNodeSelected(nodeId)","visibility":"detail-only","confidence":0.7},{"id":"onnodeclicked_notification_103_0","kind":"notification","label":"Sends notification","line":103,"detail":"await 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__ReaderCanvas.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__ReaderCanvas.razor.json
new file mode 100644
index 0000000..357f706
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__ReaderCanvas.razor.json
@@ -0,0 +1 @@
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Guid.Empty","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"loadchapterasync_return_227_2","kind":"return","label":"Returns result","line":227,"detail":"return;","visibility":"detail-only","confidence":0.7},{"id":"external-call_230","kind":"external-call","label":"Query mediator for reader page","line":230,"detail":"sends GetReaderPageQuery, handles success/failure","visibility":"detail-only","confidence":0.7},{"id":"loadchapterasync_branch_231_3","kind":"branch","label":"Evaluates branch condition","line":231,"detail":"if (result.IsSuccess)","conditionSummary":"result.IsSuccess","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_231","kind":"branch","label":"Result success vs failure","line":231,"conditionSummary":"result.IsSuccess","outcomeLabels":["apply view model & update metadata","set error message & log"],"visibility":"detail-only","confidence":0.7},{"id":"loadchapterasync_branch_236_4","kind":"branch","label":"Evaluates branch condition","line":236,"detail":"if (_isInteractive)","conditionSummary":"_isInteractive","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"orchestration_236","kind":"mapping","label":"Process full page when interactive","line":236,"detail":"only calls coordinator if _isInteractive true","visibility":"detail-only","confidence":0.7},{"id":"loadchapterasync_fallback_241_5","kind":"fallback","label":"Falls back to alternate path","line":241,"detail":"else","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"loadchapterasync_repository-read_244_6","kind":"repository-read","label":"Reads repository or persistence state","line":244,"detail":"StatusMessage = $\"Błąd: {result.Errors.FirstOrDefault()?.Message ?? \"Nie udało się wczytać 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UI","line":248,"detail":"_isLoadingChapter false and StateHasChanged()","visibility":"detail-only","confidence":0.7}]},{"name":"ScrollToNodeAsync","line":252,"endLine":262,"signature":"(id: string) -> Task","purpose":"Attempts to scroll DOM to element with given id via JS, logs warning on failure.","calls":[{"targetFile":"unknown","targetMethod":"JS.InvokeVoidAsync(eval)","callLine":256,"paramSummary":"JS script to scroll element into view"}],"actions":[{"id":"external-call_256","kind":"external-call","label":"Invoke JS eval to scroll element","line":256,"detail":"calls document.getElementById(...).scrollIntoView","visibility":"detail-only","confidence":0.7},{"id":"scrolltonodeasync_log_260_0","kind":"log","label":"Logs runtime state","line":260,"detail":"Logger.LogWarning(ex, \"Failed to scroll to node {NodeId}.\", id);","visibility":"secondary-visible","confidence":0.92},{"id":"log_260","kind":"log","label":"Warn on scroll failure","line":260,"detail":"Logger.LogWarning when exception occurs","visibility":"detail-only","confidence":0.7}]},{"name":"HandleUpdate","line":264,"endLine":264,"signature":"() -> Task","purpose":"Helper to trigger UI refresh via InvokeAsync(StateHasChanged).","calls":[{"targetFile":"unknown","targetMethod":"InvokeAsync(StateHasChanged)","callLine":264,"paramSummary":"none"}],"actions":[{"id":"orchestration_264","kind":"mapping","label":"Request UI update","line":264,"detail":"wraps StateHasChanged in InvokeAsync","visibility":"detail-only","confidence":0.7}]},{"name":"Dispose","line":266,"endLine":275,"signature":"() -> void","purpose":"Unsubscribes all previously-registered event handlers to avoid memory leaks.","calls":[{"targetFile":"unknown","targetMethod":"ThemeService.OnThemeChanged -= HandleUpdate","callLine":268,"paramSummary":"event handler removal"},{"targetFile":"NexusReader.UI.Shared/Services/IReaderNavigationService","targetMethod":"OnNavigationChanged -= OnNavigationChanged","callLine":269,"paramSummary":"event handler removal"},{"targetFile":"NexusReader.UI.Shared/Services/IReaderInteractionService","targetMethod":"OnScrollToBlockRequested -= HandleScrollRequested","callLine":271,"paramSummary":"event handler removal"},{"targetFile":"NexusReader.UI.Shared/Services/IReaderInteractionService","targetMethod":"OnHighlightBlockRequested -= HandleHighlightRequested","callLine":272,"paramSummary":"event handler removal"},{"targetFile":"NexusReader.UI.Shared/Services/IReaderInteractionService","targetMethod":"OnTextSelected -= HandleTextSelected","callLine":273,"paramSummary":"event handler removal"},{"targetFile":"NexusReader.UI.Shared/Services/ISyncService","targetMethod":"OnProgressReceived -= HandleSyncProgressReceived","callLine":274,"paramSummary":"event handler removal"}],"actions":[{"id":"event-unregistration_268","kind":"mapping","label":"Unsubscribe event handlers","line":268,"detail":"removes all handlers added in OnInitializedAsync","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Queries.Reader (GetReaderPageQuery handler) ","NexusReader.UI.Shared/Services/KnowledgeCoordinator","NexusReader.UI.Shared/Services/IReaderNavigationService","NexusReader.UI.Shared/Services/IReaderInteractionService","NexusReader.UI.Shared/Services/ISyncService","Microsoft.JSInterop","Microsoft.AspNetCore.Components.Authorization","MediatR"],"patterns":["Mediator (CQRS query)","Coordinator pattern (KnowledgeCoordinator)","JS Interop observer/selection pattern","Event-driven UI (event subscribe/unsubscribe)"],"domainConcepts":["ReaderPage / ReaderPageViewModel","Block / TextSegmentBlock","Ebook / Chapter","Reading progress sync"],"keyDetails":"Component uses JS observers and selection listeners via JSInterop, sends GetReaderPageQuery via MediatR, coordinates content processing through KnowledgeCoordinator, and synchronizes reading position across devices via ISyncService.","orchestrationMethods":[{"name":"OnInitializedAsync","line":71,"confidence":0.98,"reason":"Coordinates 7 downstream calls with 1 architectural actions.","actionKinds":["external-call","mapping"],"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor","NexusReader.UI.Shared/Services/KnowledgeCoordinator","unknown","NexusReader.UI.Shared/Services/IReaderNavigationService","NexusReader.UI.Shared/Services/IReaderInteractionService","NexusReader.UI.Shared/Services/IReaderInteractionService"]},{"name":"OnAfterRenderAsync","line":97,"confidence":0.98,"reason":"Coordinates 4 downstream calls with 3 architectural actions.","actionKinds":["branch","guard-clause"],"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor","NexusReader.UI.Shared/Services/ISyncService","NexusReader.UI.Shared/Services/KnowledgeCoordinator","self","self"]},{"name":"LoadChapterAsync","line":212,"confidence":0.98,"reason":"Coordinates 4 downstream calls with 9 architectural actions.","actionKinds":["mapping","external-call","repository-read","guard-clause","branch","return","fallback","log"],"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor","unknown","NexusReader.Application.Queries.Reader","NexusReader.UI.Shared/Services/IReaderNavigationService","NexusReader.UI.Shared/Services/KnowledgeCoordinator"]},{"name":"Dispose","line":266,"confidence":0.93,"reason":"Coordinates 6 downstream calls with 0 architectural 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authState.User.FindFirst(System.Security.Claims.ClaimTypes.NameIdentifier)?.Value;","evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor"]},{"methodName":"LoadChapterAsync","line":244,"kind":"persistence-read","detail":"StatusMessage = $\"Błąd: {result.Errors.FirstOrDefault()?.Message ?? \"Nie udało się wczytać treści\"}\";","evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor"]}],"externalInteractions":[{"methodName":"OnInitializedAsync","line":73,"kind":"external-call","detail":"resets coordinator state","evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor"]},{"methodName":"InitializeSelectionListenerAsync","line":121,"kind":"external-call","detail":"imports selectionHandler.js and invokes initSelectionListener","evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor"]},{"methodName":"InitializeObserverAsync","line":134,"kind":"external-call","detail":"imports readerObserver.js and invokes initObserver","evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor"]},{"methodName":"LoadChapterAsync","line":218,"kind":"external-call","detail":"reads authentication info to include userId","evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor"]},{"methodName":"LoadChapterAsync","line":230,"kind":"external-call","detail":"sends GetReaderPageQuery, handles success/failure","evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor"]},{"methodName":"ScrollToNodeAsync","line":256,"kind":"external-call","detail":"calls document.getElementById(...).scrollIntoView","evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"OnInitializedAsync","line":71,"summary":"Coordinates 7 downstream calls with 1 architectural 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actions.","confidence":0.98,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor","unknown","NexusReader.Application.Queries.Reader","NexusReader.UI.Shared/Services/IReaderNavigationService","NexusReader.UI.Shared/Services/KnowledgeCoordinator"]},{"kind":"orchestration-method","label":"Dispose","line":266,"summary":"Coordinates 6 downstream calls with 0 architectural actions.","confidence":0.93,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor","unknown","NexusReader.UI.Shared/Services/IReaderNavigationService","NexusReader.UI.Shared/Services/IReaderInteractionService","NexusReader.UI.Shared/Services/IReaderInteractionService","NexusReader.UI.Shared/Services/IReaderInteractionService"]},{"kind":"persistence","label":"LoadChapterAsync","line":219,"summary":"var userId = authState.User.FindFirst(System.Security.Claims.ClaimTypes.NameIdentifier)?.Value;","confidence":0.82,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor"]},{"kind":"persistence","label":"LoadChapterAsync","line":244,"summary":"StatusMessage = $\"Błąd: {result.Errors.FirstOrDefault()?.Message ?? \"Nie udało się wczytać treści\"}\";","confidence":0.82,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor"]},{"kind":"external-call","label":"OnInitializedAsync","line":73,"summary":"resets coordinator state","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor"]},{"kind":"external-call","label":"InitializeSelectionListenerAsync","line":121,"summary":"imports selectionHandler.js and invokes initSelectionListener","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor"]},{"kind":"external-call","label":"InitializeObserverAsync","line":134,"summary":"imports readerObserver.js and invokes initObserver","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__ReaderFooter.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__ReaderFooter.razor.json
new file mode 100644
index 0000000..d07c9fe
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__Organisms__ReaderFooter.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Components/Organisms/ReaderFooter.razor","purpose":"Blazor UI component that renders reader footer UI (navigation controls, progress bar, meta info) and binds to an injected reader navigation service to drive UI state and navigation.","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["Middleware pattern","Frontend path heuristic","Razor markup for a footer with @inject IReaderNavigationService","Implements IDisposable and uses Blazor lifecycle OnInitialized / StateHasChanged"]},"className":"ReaderFooter","methods":[{"name":"OnInitialized","line":34,"endLine":37,"signature":"() -> void (override)","purpose":"Component lifecycle initialization: subscribes to navigation change events so the footer updates when navigation changes.","calls":[{"targetFile":"NexusReader.UI.Shared/Services/IReaderNavigationService.cs","targetMethod":"OnNavigationChanged (event subscribe)","callLine":36,"paramSummary":"HandleNavigationChanged delegate"}],"actions":[{"id":"subscribe-event_36","kind":"mapping","label":"Subscribe to navigation changes","line":36,"detail":"NavigationService.OnNavigationChanged += HandleNavigationChanged","visibility":"detail-only","confidence":0.7}]},{"name":"HandleNavigationChanged","line":39,"endLine":42,"signature":"() -> Task","purpose":"Event handler invoked when navigation changes; triggers a UI refresh on the Blazor renderer.","calls":[],"actions":[{"id":"ui-update_41","kind":"mapping","label":"Request component re-render","line":41,"detail":"await InvokeAsync(StateHasChanged) to schedule UI update","visibility":"detail-only","confidence":0.7}]},{"name":"CalculateProgress","line":44,"endLine":48,"signature":"() -> int","purpose":"Computes reading progress percentage based on current chapter index and total chapters.","calls":[],"actions":[{"id":"calculateprogress_guard-clause_46_0","kind":"guard-clause","label":"Guards early exit or rejection path","line":46,"detail":"if (NavigationService.TotalChapters <= 1) return 0;","conditionSummary":"NavigationService.TotalChapters <= 1","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"guard-clause_46","kind":"guard-clause","label":"Handle single-or-no-chapter case","line":46,"detail":"If only one (or zero) chapters, progress is 0","conditionSummary":"NavigationService.TotalChapters <= 1","outcomeLabels":["return 0","continue"],"visibility":"detail-only","confidence":0.7},{"id":"property-read_46","kind":"mapping","label":"Reads navigation state","line":46,"detail":"Reads NavigationService.TotalChapters and NavigationService.CurrentChapterIndex","visibility":"detail-only","confidence":0.7},{"id":"calculation_47","kind":"mapping","label":"Calculate percentage","line":47,"detail":"Returns (CurrentChapterIndex / (TotalChapters - 1)) * 100 as int","visibility":"detail-only","confidence":0.7},{"id":"calculateprogress_return_47_1","kind":"return","label":"Returns result","line":47,"detail":"return (int)((NavigationService.CurrentChapterIndex / (float)(NavigationService.TotalChapters - 1)) * 100);","visibility":"detail-only","confidence":0.7}]},{"name":"Dispose","line":50,"endLine":53,"signature":"() -> void (IDisposable)","purpose":"Cleanup: unsubscribes the navigation change handler to avoid memory leaks when component is disposed.","calls":[{"targetFile":"NexusReader.UI.Shared/Services/IReaderNavigationService.cs","targetMethod":"OnNavigationChanged (event unsubscribe)","callLine":52,"paramSummary":"HandleNavigationChanged delegate"}],"actions":[{"id":"unsubscribe-event_52","kind":"mapping","label":"Unsubscribe navigation change handler","line":52,"detail":"NavigationService.OnNavigationChanged -= HandleNavigationChanged","visibility":"detail-only","confidence":0.7}]},{"name":"PreviousButton_OnClick (markup binding)","line":8,"endLine":8,"signature":"() -> void (invoked by @onclick binding in markup)","purpose":"Markup-level event binding that invokes the reader navigation service to go to the previous chapter.","calls":[{"targetFile":"NexusReader.UI.Shared/Services/IReaderNavigationService.cs","targetMethod":"GoToPreviousChapter","callLine":8,"paramSummary":"none"}],"actions":[{"id":"ui-binding_8","kind":"mapping","label":"Button disabled state binding","line":8,"detail":"disabled when NavigationService.CurrentChapterIndex == 0","visibility":"detail-only","confidence":0.7}]},{"name":"NextButton_OnClick (markup binding)","line":17,"endLine":17,"signature":"() -> void (invoked by @onclick binding in markup)","purpose":"Markup-level event binding that invokes the reader navigation service to go to the next chapter.","calls":[{"targetFile":"NexusReader.UI.Shared/Services/IReaderNavigationService.cs","targetMethod":"GoToNextChapter","callLine":17,"paramSummary":"none"}],"actions":[{"id":"ui-binding_17","kind":"mapping","label":"Button disabled state binding","line":17,"detail":"disabled when NavigationService.CurrentChapterIndex >= NavigationService.TotalChapters - 1","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.UI.Shared/Services/IReaderNavigationService.cs"],"patterns":["Event subscription","Component lifecycle"],"domainConcepts":["Navigation","Chapter","Progress"],"keyDetails":"Component subscribes to IReaderNavigationService.OnNavigationChanged to update UI, computes progress with a guard for single-chapter cases, exposes markup-bound previous/next actions that call the navigation service, and properly unsubscribes on Dispose to avoid leaks.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__RedirectToLogin.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__RedirectToLogin.razor.json
new file mode 100644
index 0000000..cd912e4
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Components__RedirectToLogin.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Components/RedirectToLogin.razor","purpose":"Razor UI component that immediately redirects the user to the login page, preserving the current relative URL as a returnUrl query parameter when present.","classification":{"role":"ui-component","layer":"frontend","confidence":0.85,"evidence":["Frontend path heuristic","Razor component (RedirectToLogin.razor)","Injects NavigationManager and calls NavigateTo to route to /account/login","Implements OnInitialized lifecycle method to perform immediate redirect"]},"className":"","methods":[{"name":"OnInitialized","line":4,"endLine":15,"signature":"() -> void","purpose":"Component lifecycle method that computes the current relative URL and redirects to the login page, appending a returnUrl query when applicable.","calls":[],"actions":[{"id":"injection_1","kind":"mapping","label":"Injected dependency","line":1,"detail":"NavigationManager is injected into the component via @inject","visibility":"detail-only","confidence":0.7},{"id":"external-call_6","kind":"external-call","label":"Read current URI and compute base-relative path","line":6,"detail":"var returnUrl = NavigationManager.ToBaseRelativePath(NavigationManager.Uri) — reads NavigationManager.Uri and calls ToBaseRelativePath (framework)","visibility":"detail-only","confidence":0.7},{"id":"guard-clause_7","kind":"guard-clause","label":"Check empty/whitespace returnUrl","line":7,"detail":"Branches the redirect target based on whether returnUrl has content","conditionSummary":"string.IsNullOrWhiteSpace(returnUrl)","outcomeLabels":["navigate to /account/login (no returnUrl)","navigate to /account/login?returnUrl=... (with encoded returnUrl)"],"visibility":"detail-only","confidence":0.7},{"id":"oninitialized_branch_7_0","kind":"branch","label":"Evaluates branch condition","line":7,"detail":"if (string.IsNullOrWhiteSpace(returnUrl))","conditionSummary":"string.IsNullOrWhiteSpace(returnUrl)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"external-call_9","kind":"external-call","label":"Navigate to login without returnUrl","line":9,"detail":"NavigationManager.NavigateTo(\"/account/login\") — triggers client-side navigation (framework)","visibility":"detail-only","confidence":0.7},{"id":"oninitialized_fallback_11_1","kind":"fallback","label":"Falls back to alternate path","line":11,"detail":"else","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"external-call_13","kind":"external-call","label":"Encode returnUrl and navigate to login with returnUrl","line":13,"detail":"NavigationManager.NavigateTo($\"/account/login?returnUrl={Uri.EscapeDataString(returnUrl)}\") — calls Uri.EscapeDataString then NavigateTo (framework)","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["Microsoft.AspNetCore.Components/NavigationManager (framework)"],"patterns":["Redirect","Immediate-UI-redirect"],"domainConcepts":[],"keyDetails":"Performs an immediate client-side redirect during the component initialization lifecycle; preserves the original relative path as an encoded returnUrl when present.","orchestrationMethods":[{"name":"OnInitialized","line":4,"confidence":0.98,"reason":"Contains 5 architectural actions relevant to business execution.","actionKinds":["mapping","external-call","guard-clause","branch","fallback"],"evidencePaths":["NexusReader.UI.Shared/Components/RedirectToLogin.razor"]}],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[{"methodName":"OnInitialized","line":6,"kind":"external-call","detail":"var returnUrl = NavigationManager.ToBaseRelativePath(NavigationManager.Uri) — reads NavigationManager.Uri and calls ToBaseRelativePath (framework)","evidencePaths":["NexusReader.UI.Shared/Components/RedirectToLogin.razor"]},{"methodName":"OnInitialized","line":9,"kind":"external-call","detail":"NavigationManager.NavigateTo(\"/account/login\") — triggers client-side navigation (framework)","evidencePaths":["NexusReader.UI.Shared/Components/RedirectToLogin.razor"]},{"methodName":"OnInitialized","line":13,"kind":"external-call","detail":"NavigationManager.NavigateTo($\"/account/login?returnUrl={Uri.EscapeDataString(returnUrl)}\") — calls Uri.EscapeDataString then NavigateTo (framework)","evidencePaths":["NexusReader.UI.Shared/Components/RedirectToLogin.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"OnInitialized","line":4,"summary":"Contains 5 architectural actions relevant to business execution.","confidence":0.98,"evidencePaths":["NexusReader.UI.Shared/Components/RedirectToLogin.razor"]},{"kind":"external-call","label":"OnInitialized","line":6,"summary":"var returnUrl = NavigationManager.ToBaseRelativePath(NavigationManager.Uri) — reads NavigationManager.Uri and calls ToBaseRelativePath (framework)","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/RedirectToLogin.razor"]},{"kind":"external-call","label":"OnInitialized","line":9,"summary":"NavigationManager.NavigateTo(\"/account/login\") — triggers client-side navigation (framework)","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/RedirectToLogin.razor"]},{"kind":"external-call","label":"OnInitialized","line":13,"summary":"NavigationManager.NavigateTo($\"/account/login?returnUrl={Uri.EscapeDataString(returnUrl)}\") — calls Uri.EscapeDataString then NavigateTo (framework)","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Components/RedirectToLogin.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Layout__AuthLayout.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Layout__AuthLayout.razor.json
new file mode 100644
index 0000000..55a48e7
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Layout__AuthLayout.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Layout/AuthLayout.razor","purpose":"Blazor layout component that provides a full-screen, centered authentication shell, injects an auth stylesheet, and renders the routed page content via @Body.","classification":{"role":"ui-component","layer":"frontend","confidence":0.86,"evidence":["Frontend path heuristic","Line 1: @inherits LayoutComponentBase indicates a Blazor layout component","Line 5: uses @Body to render routed child content","Line 4 and lines 8-24: injects stylesheet and contains layout CSS"]},"className":"","methods":[{"name":"AuthLayout (render/markup)","line":1,"endLine":24,"signature":"() -> RenderFragment","purpose":"Renders the authentication layout shell: injects a stylesheet, outputs a full-screen container with CSS and renders @Body inside it.","calls":[{"targetFile":"self","targetMethod":"Body","callLine":5,"paramSummary":"renders child page content (RenderFragment)"},{"targetFile":"_content/NexusReader.UI.Shared/css/nexus-auth.css","targetMethod":"load stylesheet","callLine":4,"paramSummary":"static CSS resource path"}],"actions":[{"id":"resource-include_4","kind":"mapping","label":"Include auth stylesheet","line":4,"detail":"<link rel=\"stylesheet\" href=\"_content/NexusReader.UI.Shared/css/nexus-auth.css\" />","visibility":"detail-only","confidence":0.7},{"id":"render_5","kind":"mapping","label":"Render Body (child content)","line":5,"detail":"Renders the routed page/component inside the layout via @Body","visibility":"detail-only","confidence":0.7},{"id":"layout-css_9","kind":"mapping","label":"Full-screen fixed shell CSS","line":9,"detail":"Defines .nexus-auth-shell as fixed, full-viewport, centered container (position, width/height, background-color, flex centering, z-index, overflow hidden)","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["_content/NexusReader.UI.Shared/css/nexus-auth.css"],"patterns":["Layout","Component"],"domainConcepts":[],"keyDetails":"Simple Blazor layout that centralizes auth pages and enforces a full-screen dark background; no code-behind logic or lifecycle overrides present.","orchestrationMethods":[{"name":"AuthLayout (render/markup)","line":1,"confidence":0.61,"reason":"Coordinates 2 downstream calls with 0 architectural actions.","actionKinds":["mapping"],"evidencePaths":["NexusReader.UI.Shared/Layout/AuthLayout.razor","self","_content/NexusReader.UI.Shared/css/nexus-auth.css"]}],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"orchestration-method","label":"AuthLayout (render/markup)","line":1,"summary":"Coordinates 2 downstream calls with 0 architectural actions.","confidence":0.61,"evidencePaths":["NexusReader.UI.Shared/Layout/AuthLayout.razor","self","_content/NexusReader.UI.Shared/css/nexus-auth.css"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Layout__MainHubLayout.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Layout__MainHubLayout.razor.json
new file mode 100644
index 0000000..fd935fd
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Layout__MainHubLayout.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Layout/MainHubLayout.razor","purpose":"Blazor layout component that renders the main application hub (sidebar navigation, user brief, logout) and coordinates initial authentication sync with the server.","classification":{"role":"ui-component","layer":"frontend","confidence":0.85,"evidence":["Frontend path heuristic","Razor component markup with NavLink and AuthorizeView (lines 8-61,19-60)","Injects AuthenticationStateProvider, IIdentityService and NavigationManager (lines 88-90)","Overrides OnInitializedAsync and exposes @Body (lines 94-105, 80-83)"]},"className":"MainHubLayout","methods":[{"name":"OnInitializedAsync","line":94,"endLine":105,"signature":"() -> Task","purpose":"Runs during component initialization to ensure client authentication state is synced with the server; avoids duplicate syncs via a guard flag.","calls":[{"targetFile":"NexusReader.Application.Abstractions.Services/IIdentityService","targetMethod":"GetProfileAsync","callLine":103,"paramSummary":"none"}],"actions":[{"id":"oninitializedasync_guard-clause_96_0","kind":"guard-clause","label":"Guards early exit or rejection path","line":96,"detail":"if (_isSyncing) return;","conditionSummary":"_isSyncing","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"guard-clause_96","kind":"guard-clause","label":"Prevent re-entrancy when already syncing","line":96,"detail":"if (_isSyncing) return;","conditionSummary":"_isSyncing == true","outcomeLabels":["return"],"visibility":"detail-only","confidence":0.7},{"id":"oninitializedasync_branch_99_1","kind":"branch","label":"Evaluates branch condition","line":99,"detail":"if (!authState.User.Identity?.IsAuthenticated ?? true)","conditionSummary":"!authState.User.Identity?.IsAuthenticated ?? true","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"external-call-branch_99","kind":"mapping","label":"If not authenticated, attempt server-side profile sync","line":99,"detail":"Checks AuthenticationState; when unauthenticated, sets _isSyncing and calls GetProfileAsync to sync session/cookie.","conditionSummary":"!authState.User.Identity?.IsAuthenticated ?? true","outcomeLabels":["set _isSyncing true","call IdentityService.GetProfileAsync()"],"visibility":"detail-only","confidence":0.7},{"id":"state-mutation_101","kind":"mapping","label":"Set syncing flag","line":101,"detail":"_isSyncing = true;","visibility":"detail-only","confidence":0.7}]},{"name":"HandleLogout","line":107,"endLine":111,"signature":"() -> Task","purpose":"Performs logout by calling the identity service and then navigates to the logout form (forces reload).","calls":[{"targetFile":"NexusReader.Application.Abstractions.Services/IIdentityService","targetMethod":"LogoutAsync","callLine":109,"paramSummary":"none"}],"actions":[{"id":"external-call_109","kind":"external-call","label":"Invoke logout on identity service","line":109,"detail":"await IdentityService.LogoutAsync();","visibility":"detail-only","confidence":0.7},{"id":"navigation_110","kind":"mapping","label":"Navigate to logout form forcing reload","line":110,"detail":"NavigationManager.NavigateTo(\"/account/logout-form\", true);","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":" (component state)","kind":"model","line":92,"purpose":"Holds local UI state for the layout component.","fields":[{"name":"_isSyncing","type":"bool","required":true,"line":92,"description":"Flag to prevent duplicate profile sync attempts"},{"name":"AuthStateProvider","type":"AuthenticationStateProvider (injected)","required":true,"line":88,"description":"Provider used to get the current authentication state"},{"name":"IdentityService","type":"IIdentityService (injected)","required":true,"line":89,"description":"Application identity service used for profile sync and logout"},{"name":"NavigationManager","type":"NavigationManager (injected)","required":true,"line":90,"description":"Browser navigation helper used to redirect after logout"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Abstractions.Services/IIdentityService","NexusReader.UI.Shared.Services","NexusReader.UI.Shared.Components.*"],"patterns":["UI Layout","Auth sync (client-server)","Guarded initialization"],"domainConcepts":["Identity","Profile","Logout"],"keyDetails":"This layout encapsulates the main hub UI and is responsible for attempting a server-profile sync when the client starts unauthenticated; it prevents duplicate syncs with _isSyncing and exposes a logout flow that calls the identity service then forces navigation to a logout confirmation route.","orchestrationMethods":[{"name":"OnInitializedAsync","line":94,"confidence":0.65,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["guard-clause","branch","mapping"],"evidencePaths":["NexusReader.UI.Shared/Layout/MainHubLayout.razor","NexusReader.Application.Abstractions.Services/IIdentityService"]},{"name":"HandleLogout","line":107,"confidence":0.65,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["external-call","mapping"],"evidencePaths":["NexusReader.UI.Shared/Layout/MainHubLayout.razor","NexusReader.Application.Abstractions.Services/IIdentityService"]}],"typedContracts":[{"name":" (component state)","kind":"model","line":92,"fieldCount":4,"evidencePaths":["NexusReader.UI.Shared/Layout/MainHubLayout.razor"]}],"persistenceInteractions":[],"externalInteractions":[{"methodName":"HandleLogout","line":109,"kind":"external-call","detail":"await IdentityService.LogoutAsync();","evidencePaths":["NexusReader.UI.Shared/Layout/MainHubLayout.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"OnInitializedAsync","line":94,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.65,"evidencePaths":["NexusReader.UI.Shared/Layout/MainHubLayout.razor","NexusReader.Application.Abstractions.Services/IIdentityService"]},{"kind":"orchestration-method","label":"HandleLogout","line":107,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.65,"evidencePaths":["NexusReader.UI.Shared/Layout/MainHubLayout.razor","NexusReader.Application.Abstractions.Services/IIdentityService"]},{"kind":"typed-contract","label":" (component state)","line":92,"summary":"model with 4 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Layout/MainHubLayout.razor"]},{"kind":"external-call","label":"HandleLogout","line":109,"summary":"await IdentityService.LogoutAsync();","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Layout/MainHubLayout.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Layout__ReaderLayout.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Layout__ReaderLayout.razor.json
new file mode 100644
index 0000000..63740a7
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Layout__ReaderLayout.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Layout/ReaderLayout.razor","purpose":"Blazor layout component for the reader UI that composes the main reader pane, an AI/intelligence sidebar and footer; it manages device/platform classing, subscribes to UI state services (focus, quiz) and initializes a JS layout resizer on first render.","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["Middleware pattern","Frontend path heuristic","Razor markup with @inherits LayoutComponentBase and @Body (lines 1, 18-20)","Injects UI/services (IPlatformService, IFocusModeService, IQuizStateService) and uses JS interop (lines 2-13, 99-100)"]},"className":"ReaderLayout","methods":[{"name":"OnInitialized","line":73,"endLine":89,"signature":"() -> void","purpose":"Subscribe to focus/quiz update events and determine device context to set mobile/desktop CSS classes.","calls":[{"targetFile":"NexusReader.UI.Shared.Services","targetMethod":"OnFocusModeChanged (event subscribe)","callLine":75,"paramSummary":"+= HandleUpdate (event handler delegate)"},{"targetFile":"NexusReader.UI.Shared.Services","targetMethod":"OnQuizUpdated (event subscribe)","callLine":76,"paramSummary":"+= HandleUpdate (event handler delegate)"},{"targetFile":"NexusReader.Application.Abstractions.Services","targetMethod":"GetDeviceContext","callLine":78,"paramSummary":"none; returns a Result-like context with IsSuccess and Value.DeviceType"}],"actions":[{"id":"event-subscribe_75","kind":"mapping","label":"Subscribe to focus mode changes","line":75,"detail":"FocusMode.OnFocusModeChanged += HandleUpdate","visibility":"detail-only","confidence":0.7},{"id":"event-subscribe_76","kind":"mapping","label":"Subscribe to quiz updates","line":76,"detail":"QuizService.OnQuizUpdated += HandleUpdate","visibility":"detail-only","confidence":0.7},{"id":"oninitialized_branch_79_0","kind":"branch","label":"Evaluates branch condition","line":79,"detail":"if (context.IsSuccess)","conditionSummary":"context.IsSuccess","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_79","kind":"guard-clause","label":"Only apply device logic if platform context is available","line":79,"detail":"if (context.IsSuccess) { ... }","conditionSummary":"context.IsSuccess","outcomeLabels":["skip device handling","apply device handling"],"visibility":"detail-only","confidence":0.7},{"id":"oninitialized_repository-read_79_1","kind":"repository-read","label":"Reads repository or persistence state","line":79,"detail":"if (context.IsSuccess)","visibility":"secondary-visible","confidence":0.86},{"id":"branch_81","kind":"branch","label":"Map DeviceType to _isMobile","line":81,"detail":"DeviceType.Phone or DeviceType.Tablet => true; _ => false","conditionSummary":"switch on context.Value.DeviceType","outcomeLabels":["Phone/Tablet => _isMobile = true","default => _isMobile = false"],"visibility":"detail-only","confidence":0.7},{"id":"oninitialized_repository-read_81_2","kind":"repository-read","label":"Reads repository or persistence state","line":81,"detail":"_isMobile = context.Value.DeviceType switch","visibility":"secondary-visible","confidence":0.86},{"id":"state-write_87","kind":"mapping","label":"Set platform CSS class","line":87,"detail":"_platformClass = _isMobile ? \"platform-mobile\" : \"platform-desktop\"","visibility":"detail-only","confidence":0.7}]},{"name":"OnAfterRenderAsync","line":93,"endLine":107,"signature":"(firstRender: bool) -> Task","purpose":"On first render, import a JS module and initialize the layout resizer; log errors if initialization fails.","calls":[{"targetFile":"unknown","targetMethod":"IJSRuntime.InvokeAsync(\"import\", modulePath)","callLine":99,"paramSummary":"modulePath: \"./_content/NexusReader.UI.Shared/js/layoutResizer.js\" (imports JS module)"},{"targetFile":"./_content/NexusReader.UI.Shared/js/layoutResizer.js","targetMethod":"initResizer (JS function invoked via module.InvokeVoidAsync)","callLine":100,"paramSummary":"selectors and CSS custom property: \".app-container\", \"#sidebar-resizer\", \"--sidebar-width\""}],"actions":[{"id":"onafterrenderasync_branch_95_0","kind":"branch","label":"Evaluates branch condition","line":95,"detail":"if (firstRender)","conditionSummary":"firstRender","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_95","kind":"guard-clause","label":"Only run JS initialization on first render","line":95,"detail":"if (firstRender) { ... }","conditionSummary":"firstRender == true","outcomeLabels":["skip","initialize JS resizer"],"visibility":"detail-only","confidence":0.7},{"id":"try-catch_97","kind":"mapping","label":"Protect JS import/initialization","line":97,"detail":"try { import module and invoke initResizer } catch (Exception ex) { Logger.LogError(...) }","visibility":"detail-only","confidence":0.7},{"id":"external-call_99","kind":"external-call","label":"Import JS module","line":99,"detail":"await JS.InvokeAsync<IJSObjectReference>(\"import\", modulePath)","visibility":"detail-only","confidence":0.7},{"id":"external-call_100","kind":"external-call","label":"Initialize resizer via JS module","line":100,"detail":"await module.InvokeVoidAsync(\"initResizer\", \".app-container\", \"#sidebar-resizer\", \"--sidebar-width\")","visibility":"detail-only","confidence":0.7},{"id":"log_104","kind":"log","label":"Log JS initialization failure","line":104,"detail":"Logger.LogError(ex, \"Failed to initialize layout resizer JS module.\")","visibility":"detail-only","confidence":0.7},{"id":"onafterrenderasync_log_104_1","kind":"log","label":"Logs runtime state","line":104,"detail":"Logger.LogError(ex, \"Failed to initialize layout resizer JS module.\");","visibility":"secondary-visible","confidence":0.92}]},{"name":"HandleUpdate","line":109,"endLine":109,"signature":"() -> Task","purpose":"Called by subscribed services to schedule a UI refresh by invoking StateHasChanged on the renderer.","calls":[],"actions":[{"id":"ui-refresh_109","kind":"mapping","label":"Schedule StateHasChanged via InvokeAsync","line":109,"detail":"InvokeAsync(StateHasChanged)","visibility":"detail-only","confidence":0.7}]},{"name":"Dispose","line":111,"endLine":115,"signature":"() -> void","purpose":"Unsubscribe event handlers to prevent memory leaks when the component is disposed.","calls":[{"targetFile":"NexusReader.UI.Shared.Services","targetMethod":"OnFocusModeChanged (event unsubscribe)","callLine":113,"paramSummary":"-= HandleUpdate"},{"targetFile":"NexusReader.UI.Shared.Services","targetMethod":"OnQuizUpdated (event unsubscribe)","callLine":114,"paramSummary":"-= HandleUpdate"}],"actions":[{"id":"event-unsubscribe_113","kind":"mapping","label":"Unsubscribe from focus mode changes","line":113,"detail":"FocusMode.OnFocusModeChanged -= HandleUpdate","visibility":"detail-only","confidence":0.7},{"id":"event-unsubscribe_114","kind":"mapping","label":"Unsubscribe from quiz updates","line":114,"detail":"QuizService.OnQuizUpdated -= HandleUpdate","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Abstractions.Services (IPlatformService)","NexusReader.UI.Shared.Services (IFocusModeService, IQuizStateService, IIdentityService)","Microsoft.JSInterop (IJSRuntime) - uses ./_content/NexusReader.UI.Shared/js/layoutResizer.js","Microsoft.Extensions.Logging.ILogger<ReaderLayout>"],"patterns":["Razor Layout","Event Subscription / Unsubscription","JS Interop (module import + invoke)"],"domainConcepts":["Focus Mode (UI state)","Quiz availability/updates","Device context (Phone/Tablet/Desktop)","AI Assistant sidebar (knowledge/quiz components)"],"keyDetails":"This component wires UI state updates (FocusMode, QuizService) to re-render, conditions UI layout based on a PlatformService device context, and initializes a client-side resizer via an imported JS module; it unsubscribes handlers on Dispose to avoid leaks.","orchestrationMethods":[{"name":"OnInitialized","line":73,"confidence":0.98,"reason":"Coordinates 3 downstream calls with 4 architectural actions.","actionKinds":["mapping","branch","guard-clause","repository-read"],"evidencePaths":["NexusReader.UI.Shared/Layout/ReaderLayout.razor","NexusReader.UI.Shared.Services","NexusReader.UI.Shared.Services","NexusReader.Application.Abstractions.Services"]},{"name":"OnAfterRenderAsync","line":93,"confidence":0.97,"reason":"Coordinates 2 downstream calls with 3 architectural actions.","actionKinds":["branch","guard-clause","mapping","external-call","log"],"evidencePaths":["NexusReader.UI.Shared/Layout/ReaderLayout.razor","unknown","./_content/NexusReader.UI.Shared/js/layoutResizer.js"]},{"name":"Dispose","line":111,"confidence":0.61,"reason":"Coordinates 2 downstream calls with 0 architectural actions.","actionKinds":["mapping"],"evidencePaths":["NexusReader.UI.Shared/Layout/ReaderLayout.razor","NexusReader.UI.Shared.Services","NexusReader.UI.Shared.Services"]}],"typedContracts":[],"persistenceInteractions":[{"methodName":"OnInitialized","line":79,"kind":"persistence-read","detail":"if (context.IsSuccess)","evidencePaths":["NexusReader.UI.Shared/Layout/ReaderLayout.razor"]},{"methodName":"OnInitialized","line":81,"kind":"persistence-read","detail":"_isMobile = context.Value.DeviceType switch","evidencePaths":["NexusReader.UI.Shared/Layout/ReaderLayout.razor"]}],"externalInteractions":[{"methodName":"OnAfterRenderAsync","line":99,"kind":"external-call","detail":"await JS.InvokeAsync<IJSObjectReference>(\"import\", modulePath)","evidencePaths":["NexusReader.UI.Shared/Layout/ReaderLayout.razor"]},{"methodName":"OnAfterRenderAsync","line":100,"kind":"external-call","detail":"await module.InvokeVoidAsync(\"initResizer\", \".app-container\", \"#sidebar-resizer\", \"--sidebar-width\")","evidencePaths":["NexusReader.UI.Shared/Layout/ReaderLayout.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"OnInitialized","line":73,"summary":"Coordinates 3 downstream calls with 4 architectural actions.","confidence":0.98,"evidencePaths":["NexusReader.UI.Shared/Layout/ReaderLayout.razor","NexusReader.UI.Shared.Services","NexusReader.UI.Shared.Services","NexusReader.Application.Abstractions.Services"]},{"kind":"orchestration-method","label":"OnAfterRenderAsync","line":93,"summary":"Coordinates 2 downstream calls with 3 architectural actions.","confidence":0.97,"evidencePaths":["NexusReader.UI.Shared/Layout/ReaderLayout.razor","unknown","./_content/NexusReader.UI.Shared/js/layoutResizer.js"]},{"kind":"orchestration-method","label":"Dispose","line":111,"summary":"Coordinates 2 downstream calls with 0 architectural actions.","confidence":0.61,"evidencePaths":["NexusReader.UI.Shared/Layout/ReaderLayout.razor","NexusReader.UI.Shared.Services","NexusReader.UI.Shared.Services"]},{"kind":"persistence","label":"OnInitialized","line":79,"summary":"if (context.IsSuccess)","confidence":0.82,"evidencePaths":["NexusReader.UI.Shared/Layout/ReaderLayout.razor"]},{"kind":"persistence","label":"OnInitialized","line":81,"summary":"_isMobile = context.Value.DeviceType switch","confidence":0.82,"evidencePaths":["NexusReader.UI.Shared/Layout/ReaderLayout.razor"]},{"kind":"external-call","label":"OnAfterRenderAsync","line":99,"summary":"await JS.InvokeAsync<IJSObjectReference>(\"import\", modulePath)","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Layout/ReaderLayout.razor"]},{"kind":"external-call","label":"OnAfterRenderAsync","line":100,"summary":"await module.InvokeVoidAsync(\"initResizer\", \".app-container\", \"#sidebar-resizer\", \"--sidebar-width\")","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Layout/ReaderLayout.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Layout__ReconnectModal.razor.js.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Layout__ReconnectModal.razor.js.json
new file mode 100644
index 0000000..8648f7f
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Layout__ReconnectModal.razor.js.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Layout/ReconnectModal.razor.js","purpose":"Client-side helper for a Blazor reconnect modal: registers UI event handlers, orchestrates reconnect/resume attempts, and falls back to page reload when reconnection fails.","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["Frontend path heuristic","File path UI.Shared/Layout/ReconnectModal.razor.js and usage of DOM elements (modal, buttons)","Registers DOM event listeners and handles visibilitychange to retry reconnection","Calls Blazor.reconnect and Blazor.resumeCircuit to coordinate reconnect/resume behavior"]},"className":"","methods":[{"name":"handleReconnectStateChanged","line":11,"endLine":21,"signature":"(event) -> void","purpose":"React to state change events for the reconnect modal and take UI or navigation actions (show, hide, schedule retry, reload).","calls":[{"targetFile":"unknown","targetMethod":"location.reload","callLine":19,"paramSummary":"none"}],"actions":[{"id":"handlereconnectstatechanged_branch_12_0","kind":"branch","label":"Evaluates branch condition","line":12,"detail":"if (event.detail.state === \"show\") {","conditionSummary":"event.detail.state === \"show\"","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_12","kind":"branch","label":"Handle states show/hide/failed/rejected","line":12,"detail":"if state is 'show' -> show modal; 'hide' -> close modal; 'failed' -> add visibilitychange listener; 'rejected' -> reload page","visibility":"detail-only","confidence":0.7},{"id":"ui_13","kind":"mapping","label":"Show modal","line":13,"detail":"reconnectModal.showModal() (DOM API)","visibility":"detail-only","confidence":0.7},{"id":"handlereconnectstatechanged_branch_14_1","kind":"branch","label":"Evaluates branch condition","line":14,"detail":"} else if (event.detail.state === \"hide\") {","conditionSummary":"event.detail.state === \"hide\"","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"handlereconnectstatechanged_fallback_14_2","kind":"fallback","label":"Falls back to alternate path","line":14,"detail":"} else if (event.detail.state === \"hide\") {","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"ui_15","kind":"mapping","label":"Close modal","line":15,"detail":"reconnectModal.close() (DOM API)","visibility":"detail-only","confidence":0.7},{"id":"handlereconnectstatechanged_branch_16_3","kind":"branch","label":"Evaluates branch condition","line":16,"detail":"} else if (event.detail.state === \"failed\") {","conditionSummary":"event.detail.state === \"failed\"","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"handlereconnectstatechanged_fallback_16_4","kind":"fallback","label":"Falls back to alternate path","line":16,"detail":"} else if (event.detail.state === \"failed\") {","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"event-registration_17","kind":"mapping","label":"Schedule retry on visibility change","line":17,"detail":"document.addEventListener('visibilitychange', retryWhenDocumentBecomesVisible)","visibility":"detail-only","confidence":0.7},{"id":"handlereconnectstatechanged_branch_18_5","kind":"branch","label":"Evaluates branch condition","line":18,"detail":"} else if (event.detail.state === \"rejected\") {","conditionSummary":"event.detail.state === \"rejected\"","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"handlereconnectstatechanged_fallback_18_6","kind":"fallback","label":"Falls back to alternate path","line":18,"detail":"} else if (event.detail.state === \"rejected\") {","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"navigation_19","kind":"mapping","label":"Hard reload fallback","line":19,"detail":"location.reload()","visibility":"detail-only","confidence":0.7}]},{"name":"retry","line":23,"endLine":46,"signature":"() -> Promise<void>","purpose":"Attempt to reconnect via Blazor.reconnect; if server rejects, try to resume the circuit, otherwise reload or close modal; on network errors, schedule retry on visibility change.","calls":[{"targetFile":"unknown","targetMethod":"Blazor.reconnect","callLine":31,"paramSummary":"none; awaits boolean result indicating success"},{"targetFile":"unknown","targetMethod":"Blazor.resumeCircuit","callLine":35,"paramSummary":"none; awaited when reconnect reached server but returned false"},{"targetFile":"unknown","targetMethod":"location.reload","callLine":37,"paramSummary":"none (fallback when resume fails)"}],"actions":[{"id":"retry_retry_23_0","kind":"retry","label":"Retries work after a recoverable failure","line":23,"detail":"async function retry() {","outcomeLabels":["retry","give up"],"loopExitSummary":"Stops retrying when the attempt budget is exhausted or the call succeeds.","visibility":"primary-visible","confidence":0.88},{"id":"event-deregistration_24","kind":"mapping","label":"Remove scheduled visibilitychange retry","line":24,"detail":"document.removeEventListener('visibilitychange', retryWhenDocumentBecomesVisible)","visibility":"detail-only","confidence":0.7},{"id":"external-call_31","kind":"external-call","label":"Attempt reconnect","line":31,"detail":"await Blazor.reconnect(); returns true/false or throws","visibility":"detail-only","confidence":0.7},{"id":"retry_branch_32_1","kind":"branch","label":"Evaluates branch condition","line":32,"detail":"if (!successful) {","conditionSummary":"!successful","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_32","kind":"branch","label":"Handle reconnect result","line":32,"detail":"if reconnect false -> try resumeCircuit; if resume successful -> close modal; otherwise reload","visibility":"detail-only","confidence":0.7},{"id":"external-call_35","kind":"external-call","label":"Attempt resume when reconnect reaches server but circuit rejected","line":35,"detail":"await Blazor.resumeCircuit()","visibility":"detail-only","confidence":0.7},{"id":"retry_branch_36_2","kind":"branch","label":"Evaluates branch condition","line":36,"detail":"if (!resumeSuccessful) {","conditionSummary":"!resumeSuccessful","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"retry_fallback_38_3","kind":"fallback","label":"Falls back to alternate path","line":38,"detail":"} else {","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"ui_39","kind":"mapping","label":"Close modal on resume success","line":39,"detail":"reconnectModal.close() (DOM API)","visibility":"detail-only","confidence":0.7},{"id":"error-handling_42","kind":"mapping","label":"Schedule retry on network error","line":42,"detail":"catch -> document.addEventListener('visibilitychange', retryWhenDocumentBecomesVisible)","visibility":"detail-only","confidence":0.7}]},{"name":"resume","line":48,"endLine":57,"signature":"() -> Promise<void>","purpose":"Attempt to resume an existing Blazor circuit; if resume fails or errors, either reload page or show resume-failed UI state.","calls":[{"targetFile":"unknown","targetMethod":"Blazor.resumeCircuit","callLine":50,"paramSummary":"none; awaited boolean result"},{"targetFile":"unknown","targetMethod":"location.reload","callLine":52,"paramSummary":"none (fallback when resume returns false)"}],"actions":[{"id":"external-call_50","kind":"external-call","label":"Attempt circuit resume","line":50,"detail":"await Blazor.resumeCircuit();","visibility":"detail-only","confidence":0.7},{"id":"resume_branch_51_0","kind":"branch","label":"Evaluates branch condition","line":51,"detail":"if (!successful) {","conditionSummary":"!successful","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_51","kind":"branch","label":"Fallback to reload if resume false","line":51,"detail":"if not successful -> location.reload()","visibility":"detail-only","confidence":0.7},{"id":"ui-state-change_55","kind":"mapping","label":"Mark resume failure in UI","line":55,"detail":"on exception replace CSS class to reflect resume-failed state","visibility":"detail-only","confidence":0.7}]},{"name":"retryWhenDocumentBecomesVisible","line":59,"endLine":63,"signature":"() -> Promise<void>","purpose":"When the document becomes visible, trigger a retry attempt to reconnect.","calls":[{"targetFile":"self","targetMethod":"retry","callLine":61,"paramSummary":"none"}],"actions":[{"id":"retrywhendocumentbecomesvisible_retry_59_0","kind":"retry","label":"Retries work after a recoverable failure","line":59,"detail":"async function retryWhenDocumentBecomesVisible() {","outcomeLabels":["retry","give up"],"loopExitSummary":"Stops retrying when the attempt budget is exhausted or the call succeeds.","visibility":"primary-visible","confidence":0.88},{"id":"retrywhendocumentbecomesvisible_branch_60_1","kind":"branch","label":"Evaluates branch condition","line":60,"detail":"if (document.visibilityState === \"visible\") {","conditionSummary":"document.visibilityState === \"visible\"","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_60","kind":"guard-clause","label":"Only retry when document visible","line":60,"conditionSummary":"document.visibilityState === 'visible'","outcomeLabels":["skip","call retry"],"visibility":"detail-only","confidence":0.7},{"id":"orchestration_61","kind":"mapping","label":"Invoke retry","line":61,"detail":"await retry()","visibility":"detail-only","confidence":0.7},{"id":"retrywhendocumentbecomesvisible_retry_61_2","kind":"retry","label":"Retries work after a recoverable failure","line":61,"detail":"await retry();","outcomeLabels":["retry","give up"],"loopExitSummary":"Stops retrying when the attempt budget is exhausted or the call succeeds.","visibility":"primary-visible","confidence":0.88}]}],"types":[],"serviceRegistrations":[],"startupActions":[{"name":"registerReconnectEventHandlers","line":2,"kind":"unknown","targetCalls":[{"targetFile":"self","targetMethod":"handleReconnectStateChanged","callLine":3,"paramSummary":"listens for 'components-reconnect-state-changed' events"},{"targetFile":"self","targetMethod":"retry","callLine":6,"paramSummary":"attached to retry button click"},{"targetFile":"self","targetMethod":"resume","callLine":9,"paramSummary":"attached to resume button click"}]}],"dependencies":["Blazor runtime API (Blazor.reconnect, Blazor.resumeCircuit)"],"patterns":["Retry-on-visibility","Modal-driven reconnect orchestration","Fallback to hard reload"],"domainConcepts":[],"keyDetails":"Uses document visibilitychange to schedule retries, treats Blazor.reconnect returning false as a server-side rejection (then attempts resumeCircuit), and falls back to location.reload() in unrecoverable cases.","orchestrationMethods":[{"name":"handleReconnectStateChanged","line":11,"confidence":0.98,"reason":"Contains 8 architectural actions relevant to business execution.","actionKinds":["branch","mapping","fallback"],"evidencePaths":["NexusReader.UI.Shared/Layout/ReconnectModal.razor.js","unknown"]},{"name":"retry","line":23,"confidence":0.98,"reason":"Coordinates 3 downstream calls with 7 architectural actions.","actionKinds":["retry","mapping","external-call","branch","fallback"],"evidencePaths":["NexusReader.UI.Shared/Layout/ReconnectModal.razor.js","unknown","unknown","unknown"]},{"name":"resume","line":48,"confidence":0.97,"reason":"Coordinates 2 downstream calls with 3 architectural actions.","actionKinds":["external-call","branch","mapping"],"evidencePaths":["NexusReader.UI.Shared/Layout/ReconnectModal.razor.js","unknown","unknown"]},{"name":"retryWhenDocumentBecomesVisible","line":59,"confidence":0.89,"reason":"Contains 3 architectural actions relevant to business execution.","actionKinds":["retry","branch","guard-clause","mapping"],"evidencePaths":["NexusReader.UI.Shared/Layout/ReconnectModal.razor.js","self"]}],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[{"methodName":"retry","line":31,"kind":"external-call","detail":"await Blazor.reconnect(); returns true/false or throws","evidencePaths":["NexusReader.UI.Shared/Layout/ReconnectModal.razor.js"]},{"methodName":"retry","line":35,"kind":"external-call","detail":"await Blazor.resumeCircuit()","evidencePaths":["NexusReader.UI.Shared/Layout/ReconnectModal.razor.js"]},{"methodName":"resume","line":50,"kind":"external-call","detail":"await Blazor.resumeCircuit();","evidencePaths":["NexusReader.UI.Shared/Layout/ReconnectModal.razor.js"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"handleReconnectStateChanged","line":11,"summary":"Contains 8 architectural actions relevant to business execution.","confidence":0.98,"evidencePaths":["NexusReader.UI.Shared/Layout/ReconnectModal.razor.js","unknown"]},{"kind":"orchestration-method","label":"retry","line":23,"summary":"Coordinates 3 downstream calls with 7 architectural actions.","confidence":0.98,"evidencePaths":["NexusReader.UI.Shared/Layout/ReconnectModal.razor.js","unknown","unknown","unknown"]},{"kind":"orchestration-method","label":"resume","line":48,"summary":"Coordinates 2 downstream calls with 3 architectural actions.","confidence":0.97,"evidencePaths":["NexusReader.UI.Shared/Layout/ReconnectModal.razor.js","unknown","unknown"]},{"kind":"orchestration-method","label":"retryWhenDocumentBecomesVisible","line":59,"summary":"Contains 3 architectural actions relevant to business execution.","confidence":0.89,"evidencePaths":["NexusReader.UI.Shared/Layout/ReconnectModal.razor.js","self"]},{"kind":"external-call","label":"retry","line":31,"summary":"await Blazor.reconnect(); returns true/false or throws","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Layout/ReconnectModal.razor.js"]},{"kind":"external-call","label":"retry","line":35,"summary":"await Blazor.resumeCircuit()","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Layout/ReconnectModal.razor.js"]},{"kind":"external-call","label":"resume","line":50,"summary":"await Blazor.resumeCircuit();","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Layout/ReconnectModal.razor.js"]},{"kind":"startup","label":"registerReconnectEventHandlers","line":2,"summary":"unknown startup action","confidence":0.78,"evidencePaths":["NexusReader.UI.Shared/Layout/ReconnectModal.razor.js","self","self","self"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Layout__ReconnectModal.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Layout__ReconnectModal.razor.json
new file mode 100644
index 0000000..ff14537
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Layout__ReconnectModal.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Layout/ReconnectModal.razor","purpose":"Razor component markup that defines a client-side reconnect modal dialog (messages, buttons, and container elements) and includes a client JS module that implements the runtime behavior (rejoin/retry/resume logic and visibility toggles).","classification":{"role":"ui-component","layer":"frontend","confidence":0.85,"evidence":["Frontend path heuristic","Contains a <dialog id=\"components-reconnect-modal\"> with UI messages and action buttons (lines 4-32).","Imports a JS module at top of file to provide runtime behavior: _content/NexusReader.UI.Shared/Layout/ReconnectModal.razor.js (line 1)."]},"className":"","methods":[],"types":[],"serviceRegistrations":[],"startupActions":[{"name":"loadClientModule","line":1,"kind":"unknown","targetCalls":[{"targetFile":"_content/NexusReader.UI.Shared/Layout/ReconnectModal.razor.js","targetMethod":"unknown","callLine":1,"paramSummary":"ES module import for client-side behavior that manages modal visibility, retry countdown, and button handlers"}]}],"dependencies":["_content/NexusReader.UI.Shared/Layout/ReconnectModal.razor.js"],"patterns":["Modal Component","Client-side behavior via JS module"],"domainConcepts":["reconnect","session-resume","retry-countdown"],"keyDetails":"Static markup only; runtime orchestration (retries, countdown, visibility toggles, button event handlers) is delegated to the imported JS module. Important DOM ids/classes expected by the JS: components-reconnect-modal (dialog), components-seconds-to-next-attempt (countdown span), components-reconnect-button, components-resume-button, and visibility classes such as components-reconnect-first-attempt-visible, components-reconnect-repeated-attempt-visible, components-reconnect-failed-visible, components-pause-visible, components-resume-failed-visible.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"startup","label":"loadClientModule","line":1,"summary":"unknown startup action","confidence":0.78,"evidencePaths":["NexusReader.UI.Shared/Layout/ReconnectModal.razor","_content/NexusReader.UI.Shared/Layout/ReconnectModal.razor.js"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__NexusReader.UI.Shared.csproj.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__NexusReader.UI.Shared.csproj.json
new file mode 100644
index 0000000..04b0a00
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__NexusReader.UI.Shared.csproj.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/NexusReader.UI.Shared.csproj","purpose":"Project file for the NexusReader.UI.Shared Razor/shared UI project. Declares target framework, compiler settings, package dependencies (Blazor, SignalR, MediatR, logging), and a project reference to the Application project so shared UI components can be used by multiple frontends.","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["TargetFramework net10.0 (line 4) indicates a .NET UI/Blazor project","PackageReferences include Microsoft.AspNetCore.Components.* and SignalR.Client (lines 12-17) which are client/UI concerns","ProjectReference to ../NexusReader.Application (line 21) shows cross-project UI-to-application boundary"]},"className":"","methods":[],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["[object Object]","[object Object]","[object Object]","[object Object]","[object Object]","[object Object]","[object Object]"],"patterns":["Shared UI library","Component library","Client real-time integration (SignalR)","MediatR-based in-process messaging"],"domainConcepts":["Authentication / authorization (Blazor auth components)","Real-time updates (SignalR client)","In-process messaging/mediator patterns (MediatR)","Logging abstraction"],"keyDetails":"TargetFramework=net10.0 (line 4); Nullable enabled (line 5); ImplicitUsings enabled (line 6); GenerateRuntimeConfigurationFiles=true (line 7). Contains Blazor client packages and SignalR client indicating UI/shared client responsibilities; references Application project for cross-layer sharing.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Account__Login.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Account__Login.razor.json
new file mode 100644
index 0000000..6908e37
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Account__Login.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Pages/Account/Login.razor","purpose":"Blazor Razor page component that renders and handles the login UI (email/password and Google external login), performs validation, calls identity service, and coordinates client-side post-login submission.","classification":{"role":"ui-page","layer":"frontend","confidence":0.86,"evidence":["Frontend path heuristic","@page \"/account/login\" directive (line 1)","EditForm + DataAnnotationsValidator used for form handling (lines 35-36)","Injects IIdentityService, NavigationManager, IJSRuntime (lines 7-9)"]},"className":"","methods":[{"name":"OnInitialized","line":110,"endLine":124,"signature":"() -> void","purpose":"Initializes component state by mapping incoming query ErrorCode to a human-readable _errorMessage.","calls":[],"actions":[{"id":"oninitialized_branch_112_0","kind":"branch","label":"Evaluates branch condition","line":112,"detail":"if (!string.IsNullOrEmpty(ErrorCode))","conditionSummary":"!string.IsNullOrEmpty(ErrorCode)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_112","kind":"guard-clause","label":"Only map ErrorCode when present","line":112,"detail":"if (!string.IsNullOrEmpty(ErrorCode)) { _errorMessage = ErrorCode switch { ... }; }","conditionSummary":"!string.IsNullOrEmpty(ErrorCode)","outcomeLabels":["set _errorMessage","no-op"],"visibility":"detail-only","confidence":0.7},{"id":"branch_114","kind":"branch","label":"Map specific error codes to localized messages","line":114,"detail":"switch on ErrorCode with cases ExternalLoginFailed, ProvisioningFailed, UserAlreadyExists, LockedOut, InvalidCredentials, default","visibility":"detail-only","confidence":0.7}]},{"name":"HandleLogin","line":126,"endLine":152,"signature":"() -> Task","purpose":"Processes the email/password login: sets submitting state, calls identity service, handles success by invoking client JS to submit hidden form, or surfaces errors; uses try/catch/finally to manage state.","calls":[{"targetFile":"NexusReader.UI.Shared/Services/IIdentityService.cs","targetMethod":"LoginAsync","callLine":133,"paramSummary":"_loginModel.Email, _loginModel.Password, _loginModel.RememberMe"},{"targetFile":"unknown","targetMethod":"nexusAuth.submitLoginForm (JS via IJSRuntime)","callLine":137,"paramSummary":"\"nexusLoginForm\", _loginModel.Email, _loginModel.Password, _loginModel.RememberMe"}],"actions":[{"id":"state-change_128","kind":"mapping","label":"Set submitting flag true","line":128,"detail":"_isSubmitting = true","visibility":"detail-only","confidence":0.7},{"id":"state-change_129","kind":"mapping","label":"Clear previous error","line":129,"detail":"_errorMessage = null","visibility":"detail-only","confidence":0.7},{"id":"try-catch-finally_131","kind":"mapping","label":"Robust error handling and reset of submitting state","line":131,"detail":"try { ... } catch (Exception ex) { _errorMessage = ... } finally { _isSubmitting = false; }","visibility":"detail-only","confidence":0.7},{"id":"external-call_133","kind":"external-call","label":"Authenticate via identity service","line":133,"detail":"await IdentityService.LoginAsync(...)","visibility":"detail-only","confidence":0.7},{"id":"handlelogin_branch_134_0","kind":"branch","label":"Evaluates branch condition","line":134,"detail":"if (result.IsSuccess)","conditionSummary":"result.IsSuccess","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_134","kind":"branch","label":"Handle login result success vs failure","line":134,"detail":"if (result.IsSuccess) { await JS.InvokeVoidAsync(...) } else { _errorMessage = result.Errors.FirstOrDefault()?.Message ?? ... }","conditionSummary":"result.IsSuccess","outcomeLabels":["success -> invoke JS to submit cookie-based login form","failure -> set _errorMessage from result.Errors"],"visibility":"detail-only","confidence":0.7},{"id":"handlelogin_fallback_139_1","kind":"fallback","label":"Falls back to alternate path","line":139,"detail":"else","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"handlelogin_repository-read_141_2","kind":"repository-read","label":"Reads repository or persistence state","line":141,"detail":"_errorMessage = result.Errors.FirstOrDefault()?.Message ?? \"Nieprawidłowy e-mail lub hasło.\";","visibility":"secondary-visible","confidence":0.86},{"id":"error-path_144","kind":"mapping","label":"Set localized error when exception thrown","line":144,"detail":"_errorMessage = $\"Wystąpił błąd logowania: {ex.Message}.\"","visibility":"detail-only","confidence":0.7}]},{"name":"HandleGoogleLogin","line":154,"endLine":154,"signature":"() -> void","purpose":"Triggers navigation to the server-side Google external login endpoint with a full page load.","calls":[{"targetFile":"unknown","targetMethod":"NavigationManager.NavigateTo","callLine":154,"paramSummary":"\"identity/login/google\", forceLoad: true"}],"actions":[{"id":"navigation_154","kind":"mapping","label":"Redirect to external auth endpoint","line":154,"detail":"NavigationManager.NavigateTo(\"identity/login/google\", forceLoad: true)","visibility":"detail-only","confidence":0.7}]},{"name":"TogglePassword","line":155,"endLine":155,"signature":"() -> void","purpose":"Toggles the boolean that controls password visibility in the UI.","calls":[],"actions":[{"id":"state-change_155","kind":"mapping","label":"Toggle _showPassword","line":155,"detail":"_showPassword = !_showPassword","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"LoginModel","kind":"dto","line":157,"purpose":"Model bound to the login EditForm, carrying email, password and remember-me flag.","fields":[{"name":"Email","type":"string","required":true,"line":161,"description":"User email address; decorated with Required and EmailAddress attributes"},{"name":"Password","type":"string","required":true,"line":164,"description":"User password; decorated with Required attribute"},{"name":"RememberMe","type":"bool","required":false,"line":166,"description":"Whether the user requested persistent login"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.UI.Shared/Services/IIdentityService.cs"],"patterns":["Form handling (EditForm + DataAnnotationsValidator)","External auth redirect","Client-side JS interop for post-auth orchestration"],"domainConcepts":["Authentication","External (Google) login","Session/cookie sign-in orchestration"],"keyDetails":"Performs credential login via IIdentityService and, on success, invokes a hidden form submission through JS interop to perform cookie-based sign-in; maps incoming query error codes to localized messages; supports Google redirect that forces full page load.","orchestrationMethods":[{"name":"HandleLogin","line":126,"confidence":0.98,"reason":"Coordinates 2 downstream calls with 5 architectural actions.","actionKinds":["mapping","external-call","branch","fallback","repository-read"],"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Login.razor","NexusReader.UI.Shared/Services/IIdentityService.cs","unknown"]},{"name":"OnInitialized","line":110,"confidence":0.69,"reason":"Contains 2 architectural actions relevant to business execution.","actionKinds":["branch","guard-clause"],"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Login.razor"]}],"typedContracts":[{"name":"LoginModel","kind":"dto","line":157,"fieldCount":3,"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Login.razor"]}],"persistenceInteractions":[{"methodName":"HandleLogin","line":141,"kind":"persistence-read","detail":"_errorMessage = result.Errors.FirstOrDefault()?.Message ?? \"Nieprawidłowy e-mail lub hasło.\";","evidencePaths":["NexusReader.UI.Shared/Pages/Account/Login.razor"]}],"externalInteractions":[{"methodName":"HandleLogin","line":133,"kind":"external-call","detail":"await IdentityService.LoginAsync(...)","evidencePaths":["NexusReader.UI.Shared/Pages/Account/Login.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"HandleLogin","line":126,"summary":"Coordinates 2 downstream calls with 5 architectural actions.","confidence":0.98,"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Login.razor","NexusReader.UI.Shared/Services/IIdentityService.cs","unknown"]},{"kind":"orchestration-method","label":"OnInitialized","line":110,"summary":"Contains 2 architectural actions relevant to business execution.","confidence":0.69,"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Login.razor"]},{"kind":"typed-contract","label":"LoginModel","line":157,"summary":"dto with 3 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Login.razor"]},{"kind":"persistence","label":"HandleLogin","line":141,"summary":"_errorMessage = result.Errors.FirstOrDefault()?.Message ?? \"Nieprawidłowy e-mail lub hasło.\";","confidence":0.82,"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Login.razor"]},{"kind":"external-call","label":"HandleLogin","line":133,"summary":"await IdentityService.LoginAsync(...)","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Login.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Account__Profile.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Account__Profile.razor.json
new file mode 100644
index 0000000..26bece4
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Account__Profile.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Pages/Account/Profile.razor","purpose":"Razor UI page that shows the authenticated user's profile (AI token usage, quiz score, tenant and plan) and provides actions for subscription management and logout.","classification":{"role":"ui-page","layer":"frontend","confidence":0.9,"evidence":["Frontend path heuristic","Contains @page directives at top (routes)","Component is annotated with [Authorize]","Injects IIdentityService and NavigationManager and renders UI markup"]},"className":"Profile (Razor component)","methods":[{"name":"OnInitializedAsync","line":111,"endLine":119,"signature":"() -> Task","purpose":"Lifecycle initialization: retrieves the current user's profile from the identity service and updates component state.","calls":[{"targetFile":"NexusReader.UI.Shared/Services/IIdentityService.cs","targetMethod":"GetProfileAsync","callLine":113,"paramSummary":"none"}],"actions":[{"id":"external-call_113","kind":"external-call","label":"Fetch profile","line":113,"detail":"await IdentityService.GetProfileAsync()","visibility":"detail-only","confidence":0.7},{"id":"branch_114","kind":"branch","label":"Apply result on success","line":114,"detail":"if (result.IsSuccess) { _profile = result.Value; }","conditionSummary":"result.IsSuccess","outcomeLabels":["set _profile","skip"],"visibility":"detail-only","confidence":0.7},{"id":"oninitializedasync_branch_114_0","kind":"branch","label":"Evaluates branch condition","line":114,"detail":"if (result.IsSuccess)","conditionSummary":"result.IsSuccess","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"state-change_118","kind":"mapping","label":"Requests UI re-render","line":118,"detail":"StateHasChanged() after profile load","visibility":"detail-only","confidence":0.7}]},{"name":"CalculateProgress","line":121,"endLine":126,"signature":"() -> int","purpose":"Computes and clamps AI token usage percentage for a progress bar.","calls":[],"actions":[{"id":"calculateprogress_guard-clause_123_0","kind":"guard-clause","label":"Guards early exit or rejection path","line":123,"detail":"if (_profile == null || _profile.AITokenLimit == 0) return 0;","conditionSummary":"_profile == null || _profile.AITokenLimit == 0","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"guard-clause_123","kind":"guard-clause","label":"Handle missing data or zero limit","line":123,"detail":"if _profile missing or limit zero returns 0 to avoid divide-by-zero","conditionSummary":"_profile == null || _profile.AITokenLimit == 0","outcomeLabels":["return 0","continue"],"visibility":"detail-only","confidence":0.7},{"id":"computation_124","kind":"mapping","label":"Calculate percentage","line":124,"detail":"percent = (int)((double)_profile.AITokensUsed / _profile.AITokenLimit * 100)","visibility":"detail-only","confidence":0.7},{"id":"clamp_125","kind":"mapping","label":"Clamp to 100%","line":125,"detail":"return Math.Min(percent, 100)","visibility":"detail-only","confidence":0.7},{"id":"calculateprogress_return_125_1","kind":"return","label":"Returns result","line":125,"detail":"return Math.Min(percent, 100);","visibility":"detail-only","confidence":0.7}]},{"name":"HandleUpgrade","line":128,"endLine":131,"signature":"() -> void","purpose":"Placeholder handler intended to navigate to/manage billing/subscription (not implemented).","calls":[],"actions":[{"id":"comment_130","kind":"mapping","label":"Future redirect to billing portal","line":130,"detail":"// Future: Redirect to Stripe billing portal","visibility":"detail-only","confidence":0.7}]},{"name":"HandleLogout","line":133,"endLine":137,"signature":"() -> Task","purpose":"Logs the user out via identity service then navigates to logout form route.","calls":[{"targetFile":"NexusReader.UI.Shared/Services/IIdentityService.cs","targetMethod":"LogoutAsync","callLine":135,"paramSummary":"none"}],"actions":[{"id":"external-call_135","kind":"external-call","label":"Invoke logout","line":135,"detail":"await IdentityService.LogoutAsync()","visibility":"detail-only","confidence":0.7},{"id":"navigation_136","kind":"mapping","label":"Redirect to logout UI","line":136,"detail":"NavigationManager.NavigateTo(\"/account/logout-form\", true)","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.UI.Shared/Services/IIdentityService.cs","NexusReader.UI.Shared/Components/Atoms/NexusIcon.razor","Microsoft.AspNetCore.Components/NavigationManager (framework)"],"patterns":["Razor Component","Auth-protected UI Page"],"domainConcepts":["UserProfile","AI token usage / limits","TenantId","Subscription / Plan"],"keyDetails":"Razor page at routes '/account/profile' and '/profile', requires authorization, fetches UserProfileDto via IIdentityService on init, displays token/quiz metrics, has logout flow and placeholder for billing upgrade.","orchestrationMethods":[{"name":"OnInitializedAsync","line":111,"confidence":0.89,"reason":"Contains 3 architectural actions relevant to business execution.","actionKinds":["external-call","branch","mapping"],"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Profile.razor","NexusReader.UI.Shared/Services/IIdentityService.cs"]},{"name":"HandleLogout","line":133,"confidence":0.65,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["external-call","mapping"],"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Profile.razor","NexusReader.UI.Shared/Services/IIdentityService.cs"]}],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[{"methodName":"OnInitializedAsync","line":113,"kind":"external-call","detail":"await IdentityService.GetProfileAsync()","evidencePaths":["NexusReader.UI.Shared/Pages/Account/Profile.razor"]},{"methodName":"HandleLogout","line":135,"kind":"external-call","detail":"await IdentityService.LogoutAsync()","evidencePaths":["NexusReader.UI.Shared/Pages/Account/Profile.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"OnInitializedAsync","line":111,"summary":"Contains 3 architectural actions relevant to business execution.","confidence":0.89,"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Profile.razor","NexusReader.UI.Shared/Services/IIdentityService.cs"]},{"kind":"orchestration-method","label":"HandleLogout","line":133,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.65,"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Profile.razor","NexusReader.UI.Shared/Services/IIdentityService.cs"]},{"kind":"external-call","label":"OnInitializedAsync","line":113,"summary":"await IdentityService.GetProfileAsync()","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Profile.razor"]},{"kind":"external-call","label":"HandleLogout","line":135,"summary":"await IdentityService.LogoutAsync()","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Profile.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Account__Register.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Account__Register.razor.json
new file mode 100644
index 0000000..03a4244
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Account__Register.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Pages/Account/Register.razor","purpose":"Blazor Register page for creating a new user account: renders registration form, validates input, calls identity service to register and log in, and triggers cookie-based sign-in via a hidden form + JS helper.","classification":{"role":"ui-page","layer":"frontend","confidence":0.9,"evidence":["Frontend path heuristic","@page directive at line 1","EditForm and UI markup plus injected IIdentityService/IJSRuntime (lines 7-9, 23)"]},"className":"","methods":[{"name":"HandleRegister","line":84,"endLine":118,"signature":"() -> Task","purpose":"Orchestrates user registration: toggles submission state, calls identity service to register and log in, handles success/failure, triggers JS-based hidden form submission for cookie sign-in, navigates on fallback, and surfaces error messages.","calls":[{"targetFile":"NexusReader.UI.Shared/Services/IIdentityService.cs","targetMethod":"RegisterAsync","callLine":91,"paramSummary":"email (string), password (string) from _registerModel"},{"targetFile":"NexusReader.UI.Shared/Services/IIdentityService.cs","targetMethod":"LoginAsync","callLine":94,"paramSummary":"email (string), password (string) from _registerModel"}],"actions":[{"id":"ui-binding_23","kind":"mapping","label":"Invoked by EditForm OnValidSubmit","line":23,"detail":"EditForm Model and OnValidSubmit map to this handler","visibility":"detail-only","confidence":0.7},{"id":"state-change_86","kind":"mapping","label":"Set submitting flag true","line":86,"detail":"_isSubmitting = true","visibility":"detail-only","confidence":0.7},{"id":"state-change_87","kind":"mapping","label":"Clear error message","line":87,"detail":"_errorMessage = null","visibility":"detail-only","confidence":0.7},{"id":"try-catch_89","kind":"mapping","label":"Wraps registration/login attempts","line":89,"detail":"try { await RegisterAsync... } catch(Exception) { set error } finally { clear submitting }","visibility":"detail-only","confidence":0.7},{"id":"handleregister_branch_92_0","kind":"branch","label":"Evaluates branch condition","line":92,"detail":"if (regResult.IsSuccess)","conditionSummary":"regResult.IsSuccess","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_92","kind":"branch","label":"Registration success branch","line":92,"detail":"If registration succeeds, attempts to login; otherwise sets _errorMessage from regResult.Errors","conditionSummary":"regResult.IsSuccess == true","outcomeLabels":["attempt login","set error"],"visibility":"detail-only","confidence":0.7},{"id":"handleregister_branch_95_1","kind":"branch","label":"Evaluates branch condition","line":95,"detail":"if (loginResult.IsSuccess)","conditionSummary":"loginResult.IsSuccess","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_95","kind":"branch","label":"Login success vs fallback","line":95,"detail":"On successful login triggers JS form submit; otherwise navigates to login page","conditionSummary":"loginResult.IsSuccess == true","outcomeLabels":["invoke JS submit login form","navigate to /account/login"],"visibility":"detail-only","confidence":0.7},{"id":"external-call_98","kind":"external-call","label":"Trigger hidden form submission via JS to perform cookie-based sign-in","line":98,"detail":"await JS.InvokeVoidAsync(\"nexusAuth.submitLoginForm\", \"nexusLoginForm\", _registerModel.Email, _registerModel.Password, false)","visibility":"detail-only","confidence":0.7},{"id":"handleregister_fallback_100_2","kind":"fallback","label":"Falls back to alternate path","line":100,"detail":"else","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"navigation_102","kind":"mapping","label":"Fallback navigation to login page","line":102,"detail":"NavigationManager.NavigateTo(\"/account/login\")","visibility":"detail-only","confidence":0.7},{"id":"handleregister_fallback_105_3","kind":"fallback","label":"Falls back to alternate path","line":105,"detail":"else","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"handleregister_repository-read_107_4","kind":"repository-read","label":"Reads repository or persistence state","line":107,"detail":"_errorMessage = regResult.Errors.FirstOrDefault()?.Message ?? \"Rejestracja nie powiodła się.\";","visibility":"secondary-visible","confidence":0.86},{"id":"error-handling_107","kind":"mapping","label":"Set registration error from identity result","line":107,"detail":"_errorMessage = regResult.Errors.FirstOrDefault()?.Message ?? \"Rejestracja nie powiodła się.\"","visibility":"detail-only","confidence":0.7},{"id":"error-handling_112","kind":"mapping","label":"Set generic error on exception","line":112,"detail":"_errorMessage = \"Wystąpił błąd podczas rejestracji.\"","visibility":"detail-only","confidence":0.7},{"id":"finally_116","kind":"mapping","label":"Reset submitting flag","line":116,"detail":"_isSubmitting = false","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"RegisterModel","kind":"dto","line":120,"purpose":"Holds user input for registration (email, password, confirmation) with validation attributes.","fields":[{"name":"Email","type":"string","required":true,"line":124,"description":"User email; decorated with Required and EmailAddress annotations"},{"name":"Password","type":"string","required":true,"line":128,"description":"User password; Required and MinLength(8)"},{"name":"ConfirmPassword","type":"string","required":true,"line":131,"description":"Password confirmation; Compare attribute against Password"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.UI.Shared/Services/IIdentityService.cs","NexusReader.UI.Shared/Components/Atoms/NexusIcon.razor","Microsoft.AspNetCore.Components.NavigationManager (framework)","Microsoft.JSInterop.IJSRuntime (framework)"],"patterns":["Form handling","Client-side orchestration","Try/Catch with UI state management"],"domainConcepts":["Authentication","User registration","Cookie-based sign-in"],"keyDetails":"Hidden HTML form (id=nexusLoginForm, lines 73-77) is populated with email/password and used by a JS helper to perform a cookie-based sign-in after successful register+login; identity operations are delegated to injected IIdentityService.","orchestrationMethods":[{"name":"HandleRegister","line":84,"confidence":0.98,"reason":"Coordinates 2 downstream calls with 8 architectural actions.","actionKinds":["mapping","branch","external-call","fallback","repository-read"],"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Register.razor","NexusReader.UI.Shared/Services/IIdentityService.cs","NexusReader.UI.Shared/Services/IIdentityService.cs"]}],"typedContracts":[{"name":"RegisterModel","kind":"dto","line":120,"fieldCount":3,"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Register.razor"]}],"persistenceInteractions":[{"methodName":"HandleRegister","line":107,"kind":"persistence-read","detail":"_errorMessage = regResult.Errors.FirstOrDefault()?.Message ?? \"Rejestracja nie powiodła się.\";","evidencePaths":["NexusReader.UI.Shared/Pages/Account/Register.razor"]}],"externalInteractions":[{"methodName":"HandleRegister","line":98,"kind":"external-call","detail":"await JS.InvokeVoidAsync(\"nexusAuth.submitLoginForm\", \"nexusLoginForm\", _registerModel.Email, _registerModel.Password, false)","evidencePaths":["NexusReader.UI.Shared/Pages/Account/Register.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"HandleRegister","line":84,"summary":"Coordinates 2 downstream calls with 8 architectural actions.","confidence":0.98,"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Register.razor","NexusReader.UI.Shared/Services/IIdentityService.cs","NexusReader.UI.Shared/Services/IIdentityService.cs"]},{"kind":"typed-contract","label":"RegisterModel","line":120,"summary":"dto with 3 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Register.razor"]},{"kind":"persistence","label":"HandleRegister","line":107,"summary":"_errorMessage = regResult.Errors.FirstOrDefault()?.Message ?? \"Rejestracja nie powiodła się.\";","confidence":0.82,"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Register.razor"]},{"kind":"external-call","label":"HandleRegister","line":98,"summary":"await JS.InvokeVoidAsync(\"nexusAuth.submitLoginForm\", \"nexusLoginForm\", _registerModel.Email, _registerModel.Password, false)","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Pages/Account/Register.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Dashboard.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Dashboard.razor.json
new file mode 100644
index 0000000..47b8180
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Dashboard.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Pages/Dashboard.razor","purpose":"Razor UI page that renders the user's dashboard, displays profile-derived widgets and summary cards, and loads the current user's profile on initialization.","classification":{"role":"ui-page","layer":"frontend","confidence":0.9,"evidence":["Frontend path heuristic","@page directive at top (line 1)","Razor markup rendering UI widgets and components (lines 10-85)","Injects IIdentityService and uses OnInitializedAsync to load profile (lines 6, 90-97)"]},"className":"Dashboard","methods":[{"name":"OnInitializedAsync","line":90,"endLine":97,"signature":"() -> Task","purpose":"Asynchronously loads the current user's profile via the injected identity service when the component initializes and assigns it to a local field if the call succeeds.","calls":[{"targetFile":"Services/IIdentityService.cs","targetMethod":"GetProfileAsync","callLine":92,"paramSummary":"no parameters; async request for user profile"}],"actions":[{"id":"async-await_92","kind":"mapping","label":"Await profile fetch","line":92,"detail":"await ... inside OnInitializedAsync","visibility":"detail-only","confidence":0.7},{"id":"external-call_92","kind":"external-call","label":"Calls identity service","line":92,"detail":"await IdentityService.GetProfileAsync()","visibility":"detail-only","confidence":0.7},{"id":"guard-clause_93","kind":"guard-clause","label":"Assigns profile on success","line":93,"detail":"if (result.IsSuccess) { _profile = result.Value; }","conditionSummary":"result.IsSuccess","outcomeLabels":["assign _profile","leave _profile null"],"visibility":"detail-only","confidence":0.7},{"id":"oninitializedasync_branch_93_0","kind":"branch","label":"Evaluates branch condition","line":93,"detail":"if (result.IsSuccess)","conditionSummary":"result.IsSuccess","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"state-mutation_95","kind":"mapping","label":"Store fetched profile","line":95,"detail":"_profile = result.Value","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["Services/IIdentityService.cs","Dtos/UserProfileDto.cs","Components/Organisms/CurrentReadingWidget.razor","Components/Atoms/NexusIcon.razor"],"patterns":["Razor Component","Dependency Injection (injected services)"],"domainConcepts":["UserProfile","Reading (LastReadBook)","Knowledge Integration","Quiz"],"keyDetails":"Component is protected by [Authorize] (line 8). It injects IIdentityService (line 6) and NavigationManager (line 7, unused). Rendering contains null-safe access to _profile in markup (e.g. line 42: @(_profile?.Email.Split('@')[0] ?? \"Użytkowniku\") and line 46: Book=\"_profile?.LastReadBook\"), so the UI tolerates missing profile data if the fetch fails.","orchestrationMethods":[{"name":"OnInitializedAsync","line":90,"confidence":0.77,"reason":"Contains 2 architectural actions relevant to business execution.","actionKinds":["mapping","external-call","guard-clause","branch"],"evidencePaths":["NexusReader.UI.Shared/Pages/Dashboard.razor","Services/IIdentityService.cs"]}],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[{"methodName":"OnInitializedAsync","line":92,"kind":"external-call","detail":"await IdentityService.GetProfileAsync()","evidencePaths":["NexusReader.UI.Shared/Pages/Dashboard.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"OnInitializedAsync","line":90,"summary":"Contains 2 architectural actions relevant to business execution.","confidence":0.77,"evidencePaths":["NexusReader.UI.Shared/Pages/Dashboard.razor","Services/IIdentityService.cs"]},{"kind":"external-call","label":"OnInitializedAsync","line":92,"summary":"await IdentityService.GetProfileAsync()","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Pages/Dashboard.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Home.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Home.razor.json
new file mode 100644
index 0000000..124dc1c
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Home.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Pages/Home.razor","purpose":"Razor UI page for the Nexus E-Reader; manages component lifecycle, navigation to a book/chapter, keyboard focus-mode JS interop, and quiz/focus event wiring for the reader canvas.","classification":{"role":"ui-page","layer":"frontend","confidence":0.9,"evidence":["Middleware pattern","Frontend path heuristic","@page directives present","Injects NavigationManager, IJSRuntime and application services; renders ReaderCanvas component"]},"className":"Home","methods":[{"name":"OnInitialized","line":30,"endLine":34,"signature":"() -> void","purpose":"Wire up application-level events for quiz requests and focus-mode changes when the component initializes.","calls":[{"targetFile":"Services/IQuizStateService.cs","targetMethod":"OnQuizRequested (event subscribe)","callLine":32,"paramSummary":"HandleQuizRequestedAsync (event handler)"},{"targetFile":"Services/IFocusModeService.cs","targetMethod":"OnFocusModeChanged (event subscribe)","callLine":33,"paramSummary":"HandleUpdate (event handler)"}],"actions":[{"id":"event-subscribe_32","kind":"mapping","label":"Subscribe quiz requested event","line":32,"detail":"QuizState.OnQuizRequested += HandleQuizRequestedAsync","visibility":"detail-only","confidence":0.7},{"id":"event-subscribe_33","kind":"mapping","label":"Subscribe focus-mode change event","line":33,"detail":"FocusMode.OnFocusModeChanged += HandleUpdate","visibility":"detail-only","confidence":0.7}]},{"name":"OnParametersSetAsync","line":36,"endLine":61,"signature":"() -> Task","purpose":"Respond to route/parameter changes: parse optional chapter query, select or restore current book via NavService, or attempt to load last-read book from identity profile.","calls":[{"targetFile":"unknown","targetMethod":"QueryHelpers.ParseQuery","callLine":40,"paramSummary":"uri.Query (parses query string for 'chapter')"},{"targetFile":"Services/IReaderNavigationService.cs","targetMethod":"SetBook","callLine":49,"paramSummary":"BookId.Value, chapterIndex"},{"targetFile":"Services/IIdentityService.cs","targetMethod":"GetProfileAsync","callLine":55,"paramSummary":"no params; returns profileResult"},{"targetFile":"Services/IReaderNavigationService.cs","targetMethod":"SetBook","callLine":58,"paramSummary":"profileResult.Value.LastReadBook.Id, chosen chapter index"}],"actions":[{"id":"onparameterssetasync_branch_40_0","kind":"branch","label":"Evaluates branch condition","line":40,"detail":"if (Microsoft.AspNetCore.WebUtilities.QueryHelpers.ParseQuery(uri.Query).TryGetValue(\"chapter\", out var chapterValue))","conditionSummary":"Microsoft.AspNetCore.WebUtilities.QueryHelpers.ParseQuery(uri.Query).TryGetValue(\"chapter\", out var chapterValue)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_40","kind":"guard-clause","label":"Parse 'chapter' query param","line":40,"detail":"int.TryParse used to set chapterIndex","conditionSummary":"QueryHelpers.ParseQuery(...).TryGetValue('chapter')","outcomeLabels":["parse attempted","chapterIndex possibly updated"],"visibility":"detail-only","confidence":0.7},{"id":"branch_45","kind":"branch","label":"Decide book selection path","line":45,"conditionSummary":"BookId.HasValue && BookId != Guid.Empty","outcomeLabels":["explicit BookId in URL -> ensure NavService matches and call SetBook if needed","no BookId -> if NavService has no current book, attempt profile-based restore"],"visibility":"detail-only","confidence":0.7},{"id":"onparameterssetasync_branch_45_1","kind":"branch","label":"Evaluates branch condition","line":45,"detail":"if (BookId.HasValue && BookId.Value != Guid.Empty)","conditionSummary":"BookId.HasValue && BookId.Value != Guid.Empty","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"onparameterssetasync_branch_47_2","kind":"branch","label":"Evaluates branch condition","line":47,"detail":"if (NavService.CurrentEbookId != BookId.Value || NavService.CurrentChapterIndex != chapterIndex)","conditionSummary":"NavService.CurrentEbookId != BookId.Value || NavService.CurrentChapterIndex != chapterIndex","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"state-change_49","kind":"mapping","label":"Update navigation service book","line":49,"detail":"NavService.SetBook(...) updates shared navigation state","visibility":"detail-only","confidence":0.7},{"id":"onparameterssetasync_branch_52_3","kind":"branch","label":"Evaluates branch condition","line":52,"detail":"else if (NavService.CurrentEbookId == Guid.Empty)","conditionSummary":"NavService.CurrentEbookId == Guid.Empty","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"onparameterssetasync_fallback_52_4","kind":"fallback","label":"Falls back to alternate path","line":52,"detail":"else if (NavService.CurrentEbookId == Guid.Empty)","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"external-call_55","kind":"external-call","label":"Load user profile if no book selected","line":55,"detail":"await IdentityService.GetProfileAsync(); then check profileResult.IsSuccess and LastReadBook","visibility":"detail-only","confidence":0.7},{"id":"onparameterssetasync_branch_56_5","kind":"branch","label":"Evaluates branch condition","line":56,"detail":"if (profileResult.IsSuccess && profileResult.Value.LastReadBook != null)","conditionSummary":"profileResult.IsSuccess && profileResult.Value.LastReadBook != null","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78}]},{"name":"OnAfterRenderAsync","line":63,"endLine":75,"signature":"(firstRender: bool) -> Task","purpose":"On first render initialize focus-mode service and attach JS keyboard listener via JS interop; create a DotNet reference for callbacks.","calls":[{"targetFile":"Services/IFocusModeService.cs","targetMethod":"InitializeAsync","callLine":67,"paramSummary":"no params"},{"targetFile":"./_content/NexusReader.UI.Shared/js/focusInterop.js","targetMethod":"import","callLine":69,"paramSummary":"\"./_content/NexusReader.UI.Shared/js/focusInterop.js\" (dynamic module import)"},{"targetFile":"./_content/NexusReader.UI.Shared/js/focusInterop.js","targetMethod":"attachKeyboardListener","callLine":71,"paramSummary":"DotNetObjectReference to this component (for JS->.NET callbacks)"}],"actions":[{"id":"onafterrenderasync_branch_65_0","kind":"branch","label":"Evaluates branch condition","line":65,"detail":"if (firstRender)","conditionSummary":"firstRender","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"first-render-guard_65","kind":"mapping","label":"Only run on first render","line":65,"conditionSummary":"if (firstRender)","outcomeLabels":["initialize focus mode","load JS interop and attach keyboard listener"],"visibility":"detail-only","confidence":0.7},{"id":"try-catch_68","kind":"mapping","label":"Safely import JS module and attach handler","line":68,"detail":"try { import module; create DotNet ref; attach listener } catch { }","visibility":"detail-only","confidence":0.7},{"id":"state-change_73","kind":"mapping","label":"Trigger UI update","line":73,"detail":"StateHasChanged() called after initialization","visibility":"detail-only","confidence":0.7}]},{"name":"OnFocusKeypressed","line":77,"endLine":82,"signature":"() -> Task","purpose":"Invoked from JS when focus-key is pressed; toggles focus mode and requests a UI re-render.","calls":[{"targetFile":"Services/IFocusModeService.cs","targetMethod":"ToggleAsync","callLine":80,"paramSummary":"no params"}],"actions":[{"id":"js-invokable_77","kind":"mapping","label":"Called from JS","line":77,"detail":"[JSInvokable] public async Task OnFocusKeypressed()","visibility":"detail-only","confidence":0.7},{"id":"state-change_80","kind":"mapping","label":"Toggle focus mode and refresh UI","line":80,"detail":"await FocusMode.ToggleAsync(); StateHasChanged();","visibility":"detail-only","confidence":0.7}]},{"name":"HandleNodeSelected","line":84,"endLine":90,"signature":"(nodeId: string) -> Task","purpose":"Ask the ReaderCanvas child component to scroll to a specific node when requested.","calls":[{"targetFile":"ReaderCanvas.razor","targetMethod":"ScrollToNodeAsync","callLine":88,"paramSummary":"nodeId string"}],"actions":[{"id":"handlenodeselected_branch_86_0","kind":"branch","label":"Evaluates branch condition","line":86,"detail":"if (readerCanvas != null)","conditionSummary":"readerCanvas != null","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_86","kind":"guard-clause","label":"Only scroll if readerCanvas reference exists","line":86,"conditionSummary":"if (readerCanvas != null)","outcomeLabels":["call ScrollToNodeAsync","noop if null"],"visibility":"detail-only","confidence":0.7}]},{"name":"HandleQuizRequestedAsync","line":92,"endLine":96,"signature":"(blockId: string) -> Task","purpose":"Set the active quiz block id and request UI re-render when a quiz is requested by another part of the app.","calls":[{"targetFile":"self","targetMethod":"InvokeAsync","callLine":95,"paramSummary":"StateHasChanged to trigger UI update"}],"actions":[{"id":"state-change_94","kind":"mapping","label":"Set active quiz block id","line":94,"detail":"_activeQuizBlockId = blockId","visibility":"detail-only","confidence":0.7},{"id":"ui-invoke_95","kind":"mapping","label":"Schedule UI refresh","line":95,"detail":"await InvokeAsync(StateHasChanged)","visibility":"detail-only","confidence":0.7}]},{"name":"HandleUpdate","line":98,"endLine":98,"signature":"() -> Task","purpose":"Helper to invoke StateHasChanged on the UI thread in response to focus-mode change events.","calls":[{"targetFile":"self","targetMethod":"InvokeAsync","callLine":98,"paramSummary":"StateHasChanged"}],"actions":[{"id":"event-handler_98","kind":"mapping","label":"Invoke UI refresh","line":98,"detail":"returns InvokeAsync(StateHasChanged)","visibility":"detail-only","confidence":0.7}]},{"name":"DisposeAsync","line":100,"endLine":115,"signature":"() -> ValueTask","purpose":"Unsubscribe events, detach JS keyboard listener and dispose JS/DotNet interop resources when the component is disposed.","calls":[{"targetFile":"Services/IQuizStateService.cs","targetMethod":"OnQuizRequested (event unsubscribe)","callLine":102,"paramSummary":"HandleQuizRequestedAsync"},{"targetFile":"Services/IFocusModeService.cs","targetMethod":"OnFocusModeChanged (event unsubscribe)","callLine":103,"paramSummary":"HandleUpdate"},{"targetFile":"./_content/NexusReader.UI.Shared/js/focusInterop.js","targetMethod":"detachKeyboardListener","callLine":108,"paramSummary":"_keydownHandler reference"},{"targetFile":"self","targetMethod":"IJSObjectReference.DisposeAsync","callLine":109,"paramSummary":"_interopModule"},{"targetFile":"self","targetMethod":"IJSObjectReference.DisposeAsync","callLine":110,"paramSummary":"_keydownHandler"}],"actions":[{"id":"event-unsubscribe_102","kind":"mapping","label":"Unsubscribe quiz requested event","line":102,"detail":"QuizState.OnQuizRequested -= HandleQuizRequestedAsync","visibility":"detail-only","confidence":0.7},{"id":"event-unsubscribe_103","kind":"mapping","label":"Unsubscribe focus mode change event","line":103,"detail":"FocusMode.OnFocusModeChanged -= HandleUpdate","visibility":"detail-only","confidence":0.7},{"id":"disposeasync_branch_105_0","kind":"branch","label":"Evaluates branch condition","line":105,"detail":"if (_interopModule != null && _keydownHandler != null)","conditionSummary":"_interopModule != null && _keydownHandler != null","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"conditional_105","kind":"mapping","label":"If JS interop module and handler present, detach and dispose","line":105,"detail":"await _interopModule.InvokeVoidAsync('detachKeyboardListener', _keydownHandler); await disposes","conditionSummary":"_interopModule != null && _keydownHandler != null","outcomeLabels":["try detach and dispose","ignore errors (catch empty) for circuit disconnect"],"visibility":"detail-only","confidence":0.7},{"id":"dispose_114","kind":"mapping","label":"Dispose DotNetObjectReference","line":114,"detail":"_dotNetRef?.Dispose()","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["Services/IQuizStateService.cs","Services/IFocusModeService.cs","Services/IReaderNavigationService.cs","Services/IIdentityService.cs","ReaderCanvas.razor","./_content/NexusReader.UI.Shared/js/focusInterop.js"],"patterns":["Event-driven (subscribe/unsubscribe)","Component lifecycle (OnInitialized, OnParametersSetAsync, OnAfterRenderAsync, DisposeAsync)","JS interop for keyboard handling"],"domainConcepts":["Reader / ReaderCanvas","Quiz (active quiz block)","FocusMode","Navigation (book/chapter selection)","User profile (last read book)"],"keyDetails":"Component manages navigation state via IReaderNavigationService, attempts to restore last-read book from IIdentityService, wires focus-mode and quiz events, and uses JS interop to attach/detach keyboard listener with safe try/catch handling.","orchestrationMethods":[{"name":"OnParametersSetAsync","line":36,"confidence":0.98,"reason":"Coordinates 4 downstream calls with 8 architectural actions.","actionKinds":["branch","guard-clause","mapping","fallback","external-call"],"evidencePaths":["NexusReader.UI.Shared/Pages/Home.razor","unknown","Services/IReaderNavigationService.cs","Services/IIdentityService.cs","Services/IReaderNavigationService.cs"]},{"name":"DisposeAsync","line":100,"confidence":0.97,"reason":"Coordinates 5 downstream calls with 1 architectural actions.","actionKinds":["mapping","branch"],"evidencePaths":["NexusReader.UI.Shared/Pages/Home.razor","Services/IQuizStateService.cs","Services/IFocusModeService.cs","./_content/NexusReader.UI.Shared/js/focusInterop.js","self","self"]},{"name":"OnAfterRenderAsync","line":63,"confidence":0.81,"reason":"Coordinates 3 downstream calls with 1 architectural actions.","actionKinds":["branch","mapping"],"evidencePaths":["NexusReader.UI.Shared/Pages/Home.razor","Services/IFocusModeService.cs","./_content/NexusReader.UI.Shared/js/focusInterop.js","./_content/NexusReader.UI.Shared/js/focusInterop.js"]},{"name":"HandleNodeSelected","line":84,"confidence":0.65,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["branch","guard-clause"],"evidencePaths":["NexusReader.UI.Shared/Pages/Home.razor","ReaderCanvas.razor"]},{"name":"OnInitialized","line":30,"confidence":0.61,"reason":"Coordinates 2 downstream calls with 0 architectural actions.","actionKinds":["mapping"],"evidencePaths":["NexusReader.UI.Shared/Pages/Home.razor","Services/IQuizStateService.cs","Services/IFocusModeService.cs"]}],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[{"methodName":"OnParametersSetAsync","line":55,"kind":"external-call","detail":"await IdentityService.GetProfileAsync(); then check profileResult.IsSuccess and LastReadBook","evidencePaths":["NexusReader.UI.Shared/Pages/Home.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"OnParametersSetAsync","line":36,"summary":"Coordinates 4 downstream calls with 8 architectural actions.","confidence":0.98,"evidencePaths":["NexusReader.UI.Shared/Pages/Home.razor","unknown","Services/IReaderNavigationService.cs","Services/IIdentityService.cs","Services/IReaderNavigationService.cs"]},{"kind":"orchestration-method","label":"DisposeAsync","line":100,"summary":"Coordinates 5 downstream calls with 1 architectural actions.","confidence":0.97,"evidencePaths":["NexusReader.UI.Shared/Pages/Home.razor","Services/IQuizStateService.cs","Services/IFocusModeService.cs","./_content/NexusReader.UI.Shared/js/focusInterop.js","self","self"]},{"kind":"orchestration-method","label":"OnAfterRenderAsync","line":63,"summary":"Coordinates 3 downstream calls with 1 architectural actions.","confidence":0.81,"evidencePaths":["NexusReader.UI.Shared/Pages/Home.razor","Services/IFocusModeService.cs","./_content/NexusReader.UI.Shared/js/focusInterop.js","./_content/NexusReader.UI.Shared/js/focusInterop.js"]},{"kind":"orchestration-method","label":"HandleNodeSelected","line":84,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.65,"evidencePaths":["NexusReader.UI.Shared/Pages/Home.razor","ReaderCanvas.razor"]},{"kind":"external-call","label":"OnParametersSetAsync","line":55,"summary":"await IdentityService.GetProfileAsync(); then check profileResult.IsSuccess and LastReadBook","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Pages/Home.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Intelligence.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Intelligence.razor.json
new file mode 100644
index 0000000..378a63a
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Intelligence.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Pages/Intelligence.razor","purpose":"Razor UI page that provides a Global AI Q&A experience: collects a user question, optionally scopes it to a selected book, calls the knowledge service to get a grounded answer with citations, and displays loading / result / empty states.","classification":{"role":"ui-page","layer":"frontend","confidence":0.95,"evidence":["Integration/client pattern","Frontend path heuristic","Contains @page \"/intelligence\" directive (line 1)","Razor markup + @code block rendering UI and using injected services (lines 1..119, 380..453)","Injects IKnowledgeService and HttpClient (lines 7-8)"]},"className":"","methods":[{"name":"OnInitializedAsync","line":388,"endLine":398,"signature":"() -> Task","purpose":"Initializes component state by loading the user's last-read books for the scope selector from the API.","calls":[{"targetFile":"api/library/books (HTTP)","targetMethod":"GET /api/library/books","callLine":392,"paramSummary":"none (GET), expects List<LastReadBookDto>"}],"actions":[{"id":"try-catch_390","kind":"mapping","label":"Wraps books load in try/catch","line":390,"detail":"Catches Exception and logs failure","visibility":"detail-only","confidence":0.7},{"id":"assignment_392","kind":"mapping","label":"Assigns _books","line":392,"detail":"_books = result of GetFromJsonAsync","visibility":"detail-only","confidence":0.7},{"id":"external-call_392","kind":"external-call","label":"Fetch books for scope selector","line":392,"detail":"await Http.GetFromJsonAsync<List<LastReadBookDto>>(\"api/library/books\")","visibility":"detail-only","confidence":0.7},{"id":"log_396","kind":"log","label":"Logs load failure to console","line":396,"detail":"Console.WriteLine(\"[Intelligence] Failed to load books for scope selector: {ex.Message}\")","visibility":"detail-only","confidence":0.7}]},{"name":"HandleKeyUp","line":400,"endLine":406,"signature":"(e: KeyboardEventArgs) -> Task","purpose":"Handles key events in the question input; triggers AskQuestionAsync when Enter is pressed and input is valid.","calls":[{"targetFile":"self","targetMethod":"AskQuestionAsync","callLine":404,"paramSummary":"none"}],"actions":[{"id":"handlekeyup_branch_402_0","kind":"branch","label":"Evaluates branch condition","line":402,"detail":"if (e.Key == \"Enter\" && !string.IsNullOrWhiteSpace(_question) && !_isLoading)","conditionSummary":"e.Key == \"Enter\" && !string.IsNullOrWhiteSpace(_question) && !_isLoading","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_402","kind":"guard-clause","label":"Triggers only on Enter + non-empty question + not loading","line":402,"detail":"If conditions met then await AskQuestionAsync()","conditionSummary":"e.Key == \"Enter\" && !string.IsNullOrWhiteSpace(_question) && !_isLoading","outcomeLabels":["call AskQuestionAsync","no-op"],"visibility":"detail-only","confidence":0.7}]},{"name":"AskQuestionAsync","line":408,"endLine":452,"signature":"() -> Task","purpose":"Orchestrates asking the knowledge service: validates input, sets loading state, optionally parses selected book id as Guid, calls IKnowledgeService.AskQuestionAsync, handles success/error results and exceptions, and updates UI state.","calls":[{"targetFile":"NexusReader.Application.Abstractions.Services/IKnowledgeService","targetMethod":"AskQuestionAsync","callLine":425,"paramSummary":"(_question, \"tenantId\", ebookId) where ebookId is nullable Guid parsed from _selectedBookId"}],"actions":[{"id":"askquestionasync_guard-clause_410_0","kind":"guard-clause","label":"Guards early exit or rejection path","line":410,"detail":"if (string.IsNullOrWhiteSpace(_question) || _isLoading) return;","conditionSummary":"string.IsNullOrWhiteSpace(_question) || _isLoading","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"guard-clause_410","kind":"guard-clause","label":"No-op if question empty or already loading","line":410,"detail":"Return early to prevent duplicate requests","conditionSummary":"string.IsNullOrWhiteSpace(_question) || _isLoading","outcomeLabels":["return","continue"],"visibility":"detail-only","confidence":0.7},{"id":"assignment_412","kind":"mapping","label":"Set loading and search flags, clear prior response","line":412,"detail":"_isLoading = true; _hasSearched = true; _response = null; StateHasChanged()","visibility":"detail-only","confidence":0.7},{"id":"try-catch-finally_417","kind":"mapping","label":"Call knowledge service and handle failures","line":417,"detail":"Try calls AskQuestionAsync, catch builds Network/API error response, finally clears _isLoading and calls StateHasChanged()","visibility":"detail-only","confidence":0.7},{"id":"parse_420","kind":"mapping","label":"Attempt parse selected book id to Guid","line":420,"detail":"If _selectedBookId not empty and Guid.TryParse(...), set ebookId","visibility":"detail-only","confidence":0.7},{"id":"askquestionasync_branch_420_1","kind":"branch","label":"Evaluates branch condition","line":420,"detail":"if (!string.IsNullOrEmpty(_selectedBookId) && Guid.TryParse(_selectedBookId, out var parsedId))","conditionSummary":"!string.IsNullOrEmpty(_selectedBookId) && Guid.TryParse(_selectedBookId, out var parsedId)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"external-call_425","kind":"external-call","label":"Ask knowledge service for a grounded response","line":425,"detail":"var result = await KnowledgeService.AskQuestionAsync(_question, \"tenantId\", ebookId)","visibility":"detail-only","confidence":0.7},{"id":"askquestionasync_branch_426_2","kind":"branch","label":"Evaluates branch condition","line":426,"detail":"if (result.IsSuccess)","conditionSummary":"result.IsSuccess","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_426","kind":"branch","label":"Handle success vs error result","line":426,"detail":"if (result.IsSuccess) assign _response = result.Value else construct error GroundedResponseDto with result.Errors message","visibility":"detail-only","confidence":0.7},{"id":"askquestionasync_fallback_430_3","kind":"fallback","label":"Falls back to alternate path","line":430,"detail":"else","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"askquestionasync_repository-read_434_4","kind":"repository-read","label":"Reads repository or persistence state","line":434,"detail":"Answer = $\"Error: {result.Errors.FirstOrDefault()?.Message ?? \"An error occurred.\"}\",","visibility":"secondary-visible","confidence":0.86},{"id":"fallback_441","kind":"fallback","label":"Construct error response on exception","line":441,"detail":"_response = new GroundedResponseDto { Answer = $\"Network/API Error: {ex.Message}\", Citations = new List<CitationDto>() }","visibility":"detail-only","confidence":0.7},{"id":"state-change_449","kind":"mapping","label":"Clear loading state and refresh UI","line":449,"detail":"_isLoading = false; StateHasChanged()","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Abstractions.Services/IKnowledgeService","api/library/books (HTTP)"],"patterns":["Razor Component","Service Injection","UI Orchestration"],"domainConcepts":["GroundedResponse (Answer + Citations)","Citation","LastReadBook (scope selector)"],"keyDetails":"Component hardcodes tenantId when calling KnowledgeService.AskQuestionAsync (line 425); populates a scope selector by calling GET /api/library/books (line 392); constructs error fallback responses for both service-level errors and exceptions (lines 431-446).","orchestrationMethods":[{"name":"AskQuestionAsync","line":408,"confidence":0.98,"reason":"Contains 7 architectural actions relevant to business execution.","actionKinds":["guard-clause","mapping","branch","external-call","fallback","repository-read"],"evidencePaths":["NexusReader.UI.Shared/Pages/Intelligence.razor","NexusReader.Application.Abstractions.Services/IKnowledgeService"]},{"name":"OnInitializedAsync","line":388,"confidence":0.65,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["mapping","external-call","log"],"evidencePaths":["NexusReader.UI.Shared/Pages/Intelligence.razor","api/library/books (HTTP)"]},{"name":"HandleKeyUp","line":400,"confidence":0.65,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["branch","guard-clause"],"evidencePaths":["NexusReader.UI.Shared/Pages/Intelligence.razor","self"]}],"typedContracts":[],"persistenceInteractions":[{"methodName":"AskQuestionAsync","line":434,"kind":"persistence-read","detail":"Answer = $\"Error: {result.Errors.FirstOrDefault()?.Message ?? \"An error occurred.\"}\",","evidencePaths":["NexusReader.UI.Shared/Pages/Intelligence.razor"]}],"externalInteractions":[{"methodName":"OnInitializedAsync","line":392,"kind":"external-call","detail":"await Http.GetFromJsonAsync<List<LastReadBookDto>>(\"api/library/books\")","evidencePaths":["NexusReader.UI.Shared/Pages/Intelligence.razor"]},{"methodName":"AskQuestionAsync","line":425,"kind":"external-call","detail":"var result = await KnowledgeService.AskQuestionAsync(_question, \"tenantId\", ebookId)","evidencePaths":["NexusReader.UI.Shared/Pages/Intelligence.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"AskQuestionAsync","line":408,"summary":"Contains 7 architectural actions relevant to business execution.","confidence":0.98,"evidencePaths":["NexusReader.UI.Shared/Pages/Intelligence.razor","NexusReader.Application.Abstractions.Services/IKnowledgeService"]},{"kind":"orchestration-method","label":"OnInitializedAsync","line":388,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.65,"evidencePaths":["NexusReader.UI.Shared/Pages/Intelligence.razor","api/library/books (HTTP)"]},{"kind":"orchestration-method","label":"HandleKeyUp","line":400,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.65,"evidencePaths":["NexusReader.UI.Shared/Pages/Intelligence.razor","self"]},{"kind":"persistence","label":"AskQuestionAsync","line":434,"summary":"Answer = $\"Error: {result.Errors.FirstOrDefault()?.Message ?? \"An error occurred.\"}\",","confidence":0.82,"evidencePaths":["NexusReader.UI.Shared/Pages/Intelligence.razor"]},{"kind":"external-call","label":"OnInitializedAsync","line":392,"summary":"await Http.GetFromJsonAsync<List<LastReadBookDto>>(\"api/library/books\")","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Pages/Intelligence.razor"]},{"kind":"external-call","label":"AskQuestionAsync","line":425,"summary":"var result = await KnowledgeService.AskQuestionAsync(_question, \"tenantId\", ebookId)","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Pages/Intelligence.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Library.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Library.razor.json
new file mode 100644
index 0000000..87eb4bd
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Library.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Pages/Library.razor","purpose":"Blazor UI page that displays the user's library: loads last-read books from an API, shows loading/empty states, supports opening a book and launching an ingestion modal for uploading books.","classification":{"role":"ui-page","layer":"frontend","confidence":0.9,"evidence":["Integration/client pattern","Frontend path heuristic","Contains @page \"/library\" directive (line 1)","Injects HttpClient and IReaderNavigationService (lines 7-8)","Renders BookIngestionModal component and binds @bind-IsOpen:after to RefreshLibrary (line 23)","Fetches from API endpoint \"api/library/books\" (line 526) and renders book cards (lines 74-104)"]},"className":"Library","methods":[{"name":"OnAfterRenderAsync","line":511,"endLine":517,"signature":"(firstRender: bool) -> Task","purpose":"Blazor lifecycle hook that triggers the initial books load on the first render.","calls":[{"targetFile":"self","targetMethod":"LoadBooksAsync","callLine":515,"paramSummary":"none"}],"actions":[{"id":"onafterrenderasync_branch_513_0","kind":"branch","label":"Evaluates branch condition","line":513,"detail":"if (firstRender)","conditionSummary":"firstRender","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_513","kind":"guard-clause","label":"Run only on first render","line":513,"detail":"if (firstRender) { await LoadBooksAsync(); }","conditionSummary":"firstRender == true","outcomeLabels":["call LoadBooksAsync","skip"],"visibility":"detail-only","confidence":0.7}]},{"name":"LoadBooksAsync","line":519,"endLine":541,"signature":"() -> Task","purpose":"Loads the list of last-read books from the server, manages loading state and error handling, and updates UI state.","calls":[],"actions":[{"id":"state-change_521","kind":"mapping","label":"Set loading flag true","line":521,"detail":"_isLoading = true; StateHasChanged();","visibility":"detail-only","confidence":0.7},{"id":"try-catch-finally_524","kind":"mapping","label":"Error handling for API call","line":524,"detail":"try { ... } catch (Exception ex) { ... } finally { StateHasChanged(); }","visibility":"detail-only","confidence":0.7},{"id":"external-call_526","kind":"external-call","label":"Fetch books from API","line":526,"detail":"await Http.GetFromJsonAsync<List<LastReadBookDto>>(\"api/library/books\")","outcomeLabels":["assign to _books","throw"],"visibility":"detail-only","confidence":0.7},{"id":"state-change_527","kind":"mapping","label":"Set loading false on success","line":527,"detail":"_isLoading = false","visibility":"detail-only","confidence":0.7},{"id":"log_531","kind":"log","label":"Log load failure","line":531,"detail":"Console.WriteLine(\"[Library] Failed to load books: {ex.Message}\")","visibility":"detail-only","confidence":0.7},{"id":"branch_532","kind":"branch","label":"Browser-specific fallback","line":532,"detail":"If running in browser, set _isLoading = false on exception (line 534)","conditionSummary":"OperatingSystem.IsBrowser()","outcomeLabels":["clear loading flag","no-op"],"visibility":"detail-only","confidence":0.7},{"id":"loadbooksasync_branch_532_0","kind":"branch","label":"Evaluates branch condition","line":532,"detail":"if (OperatingSystem.IsBrowser())","conditionSummary":"OperatingSystem.IsBrowser()","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"state-change_539","kind":"mapping","label":"Trigger UI update after completion","line":539,"detail":"StateHasChanged() in finally block","visibility":"detail-only","confidence":0.7}]},{"name":"RefreshLibrary","line":543,"endLine":547,"signature":"() -> Task","purpose":"Public refresh helper invoked after the ingestion modal closes; re-loads books.","calls":[{"targetFile":"self","targetMethod":"LoadBooksAsync","callLine":546,"paramSummary":"none"}],"actions":[{"id":"ui-event-binding_23","kind":"mapping","label":"Bound as @bind-IsOpen:after handler for BookIngestionModal","line":23,"detail":"Invoked when BookIngestionModal IsOpen binding triggers its :after event -> RefreshLibrary","visibility":"detail-only","confidence":0.7}]},{"name":"OpenBook","line":549,"endLine":552,"signature":"(bookId: Guid) -> void","purpose":"Navigate to the reader view for the selected book.","calls":[{"targetFile":"unknown","targetMethod":"NavigateToBook","callLine":551,"paramSummary":"bookId (Guid) passed to IReaderNavigationService"}],"actions":[{"id":"ui-event_77","kind":"mapping","label":"Invoked by clicking a book card","line":77,"detail":"book card has @onclick=\"() => OpenBook(book.Id)\" which triggers navigation","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.UI.Shared.Components.Organisms (BookIngestionModal, NexusButton) - referenced in markup","NexusReader.Application.DTOs.User (LastReadBookDto) - DTO used to deserialize API response","IReaderNavigationService - injected navigation service (line 8)","HttpClient - injected Http (line 7) used to call api/library/books"],"patterns":["Blazor Component (Razor page)","UI Navigation","Client-side API consumption"],"domainConcepts":["Book","Library","Author","Progress/LastReadBook"],"keyDetails":"Page orchestrates client-side rendering and state for the library: it fetches book DTOs from api/library/books, shows loading/empty states, exposes RefreshLibrary to the ingestion modal, and delegates opening a book to an injected navigation service.","orchestrationMethods":[{"name":"LoadBooksAsync","line":519,"confidence":0.81,"reason":"Contains 3 architectural actions relevant to business execution.","actionKinds":["mapping","external-call","log","branch"],"evidencePaths":["NexusReader.UI.Shared/Pages/Library.razor"]},{"name":"OnAfterRenderAsync","line":511,"confidence":0.65,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["branch","guard-clause"],"evidencePaths":["NexusReader.UI.Shared/Pages/Library.razor","self"]}],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[{"methodName":"LoadBooksAsync","line":526,"kind":"external-call","detail":"await Http.GetFromJsonAsync<List<LastReadBookDto>>(\"api/library/books\")","evidencePaths":["NexusReader.UI.Shared/Pages/Library.razor"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"LoadBooksAsync","line":519,"summary":"Contains 3 architectural actions relevant to business execution.","confidence":0.81,"evidencePaths":["NexusReader.UI.Shared/Pages/Library.razor"]},{"kind":"orchestration-method","label":"OnAfterRenderAsync","line":511,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.65,"evidencePaths":["NexusReader.UI.Shared/Pages/Library.razor","self"]},{"kind":"external-call","label":"LoadBooksAsync","line":526,"summary":"await Http.GetFromJsonAsync<List<LastReadBookDto>>(\"api/library/books\")","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Pages/Library.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__NotFound.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__NotFound.razor.json
new file mode 100644
index 0000000..f599db3
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__NotFound.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Pages/NotFound.razor","purpose":"A Blazor UI page component that renders a 'not found' / synchronization preloader UI for the '/not-found' route and selects a shared layout.","classification":{"role":"ui-page","layer":"frontend","confidence":0.9,"evidence":["Frontend path heuristic","Line 1: @page \"/not-found\" (route declaration)","Line 2: @layout MainHubLayout (layout selection)","Lines 6 and 9: uses NexusIcon and NexusTypography components (UI composition)"]},"className":"","methods":[],"types":[],"serviceRegistrations":[],"startupActions":[{"name":"route-and-layout-declaration","line":1,"kind":"unknown","targetCalls":[]}],"dependencies":["MainHubLayout (unknown path)","NexusIcon component (unknown path)","NexusTypography component (unknown path)"],"patterns":["Page","Blazor Component"],"domainConcepts":["Navigation","UI feedback / loading state"],"keyDetails":"Static Razor markup only (lines 1-10). No code-behind, methods, or services; primary runtime artifacts are the route (@page) and layout selection (@layout) and composed child components rendering a preloader and message.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"startup","label":"route-and-layout-declaration","line":1,"summary":"unknown startup action","confidence":0.78,"evidencePaths":["NexusReader.UI.Shared/Pages/NotFound.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Settings.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Settings.razor.json
new file mode 100644
index 0000000..9a71f80
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Pages__Settings.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Pages/Settings.razor","purpose":"Razor UI page that renders the Settings screen (account and reading preferences) at route '/settings' and requires an authenticated user.","classification":{"role":"ui-page","layer":"frontend","confidence":0.9,"evidence":["Config/settings pattern","Frontend path heuristic","Contains @page directive mapping route '/settings' (line 1)","Contains [Authorize] attribute (line 2)","Razor markup for settings UI (lines 4-7) and embedded styles (lines 9-17)"]},"className":"","methods":[{"name":"RouteDirective(@page \"/settings\")","line":1,"endLine":1,"signature":"() -> void","purpose":"Declares the route for this Razor component so the router maps '/settings' to this page.","calls":[],"actions":[{"id":"route_1","kind":"mapping","label":"Registers route '/settings'","line":1,"detail":"Blazor routing directive maps URL '/settings' to this component","visibility":"detail-only","confidence":0.7}]},{"name":"AuthorizeAttribute","line":2,"endLine":2,"signature":"() -> void","purpose":"Marks the page as requiring an authenticated user; runtime enforces access control.","calls":[],"actions":[{"id":"guard-clause_2","kind":"guard-clause","label":"Enforces authentication","line":2,"detail":"Attribute delegates authorization enforcement to Blazor/ASP.NET Core auth pipeline","conditionSummary":"user is not authenticated","outcomeLabels":["deny access (redirect/forbidden by framework)","allow (authenticated)"],"visibility":"detail-only","confidence":0.7}]},{"name":"RenderMarkup","line":4,"endLine":17,"signature":"() -> RenderFragment","purpose":"Renders the Settings page UI (heading, description) and component-scoped CSS styles.","calls":[],"actions":[{"id":"render_4","kind":"mapping","label":"Render static settings UI","line":4,"detail":"Outputs <h1> and <p> with Polish text describing account and reading preferences (lines 4-7)","visibility":"detail-only","confidence":0.7},{"id":"style_9","kind":"mapping","label":"Component styles","line":9,"detail":"Defines CSS for .settings-page and h1 within component (lines 9-17)","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Razor Component","Blazor Page","Attribute-based Authorization"],"domainConcepts":["Settings","Account","User Preferences"],"keyDetails":"Simple authenticated Razor page with route '/settings'. No code-behind, no data access, no event handlers; UI text is in Polish. Authorization and routing are delegated to framework via directives at lines 1-2.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Routes.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Routes.razor.json
new file mode 100644
index 0000000..d3d4202
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Routes.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Routes.razor","purpose":"Blazor UI component that centralizes client-side routing, authorization-aware route rendering, focus-on-navigation behavior, and a global ErrorBoundary with a retry action.","classification":{"role":"ui-component","layer":"frontend","confidence":0.86,"evidence":["Endpoint/route pattern","Frontend path heuristic","Uses <Router AppAssembly=\"@typeof(Routes).Assembly\"> (lines 3-15)","Wraps markup in <ErrorBoundary> with <ErrorContent> and a retry button (lines 1-37)","Uses AuthorizeRouteView and RedirectToLogin for auth-aware routing (lines 5-8)"]},"className":"Routes","methods":[{"name":"Render (component markup)","line":1,"endLine":37,"signature":"() -> RenderFragment","purpose":"Declares the component tree: an ErrorBoundary that wraps a Router which renders authorized routes, a NotFound page, and focus-on-navigation behavior.","calls":[{"targetFile":"NexusReader.UI.Shared/Pages/NotFound.razor","targetMethod":"NotFound","callLine":13,"paramSummary":"none (renders 404 page)"},{"targetFile":"NexusReader.UI.Shared/RedirectToLogin.razor","targetMethod":"RedirectToLogin","callLine":7,"paramSummary":"none (used inside <NotAuthorized>)"},{"targetFile":"NexusReader.UI.Shared/MainHubLayout.razor","targetMethod":"MainHubLayout","callLine":5,"paramSummary":"layout type passed to AuthorizeRouteView"},{"targetFile":"NexusReader.UI.Shared/Components/NexusIcon.razor","targetMethod":"NexusIcon","callLine":21,"paramSummary":"{ Name: \"alert-triangle\", Size: 48, Color: \"#ff4444\" }"},{"targetFile":"NexusReader.UI.Shared/Components/NexusIcon.razor","targetMethod":"NexusIcon","callLine":31,"paramSummary":"{ Name: \"refresh-cw\", Size: 16 }"}],"actions":[{"id":"error-boundary_1","kind":"mapping","label":"Global UI error fallback","line":1,"detail":"Displays an error card with message and a retry button in ErrorContent","visibility":"detail-only","confidence":0.7},{"id":"orchestration_3","kind":"mapping","label":"Routing orchestration","line":3,"detail":"Router drives which pages render based on AppAssembly and route data","visibility":"detail-only","confidence":0.7},{"id":"authorization-guard_5","kind":"mapping","label":"AuthorizeRouteView fallback","line":5,"detail":"Uses AuthorizeRouteView to enforce auth; renders RedirectToLogin inside <NotAuthorized>","visibility":"detail-only","confidence":0.7},{"id":"focus-management_10","kind":"mapping","label":"FocusOnNavigate","line":10,"detail":"Sets focus to header element on navigation","visibility":"detail-only","confidence":0.7},{"id":"fallback_12","kind":"fallback","label":"NotFound fallback","line":12,"detail":"Renders NotFound component when no route matches","visibility":"detail-only","confidence":0.7},{"id":"render-data-exposure_27","kind":"mapping","label":"Show exception message","line":27,"detail":"Displays @ex.Message inside error content","visibility":"detail-only","confidence":0.7}]},{"name":"Retry button onclick (anonymous lambda)","line":30,"endLine":33,"signature":"() -> void","purpose":"Invokes ErrorBoundary.Recover() to attempt to re-render the child content after an error.","calls":[{"targetFile":"unknown","targetMethod":"Recover","callLine":30,"paramSummary":"called on _errorBoundary instance via null-conditional operator"}],"actions":[{"id":"retry_30","kind":"retry","label":"Recover UI after error","line":30,"detail":"_errorBoundary?.Recover() is invoked when the retry button is clicked","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.UI.Shared/Pages/NotFound.razor","NexusReader.UI.Shared/RedirectToLogin.razor","NexusReader.UI.Shared/MainHubLayout.razor","NexusReader.UI.Shared/Components/NexusIcon.razor"],"patterns":["Routing","Authorization (AuthorizeRouteView)","Error Boundary / UI fallback"],"domainConcepts":["Navigation","Authorization","Error handling / recovery"],"keyDetails":"Component centralizes client-side routing with auth-aware rendering and a global ErrorBoundary that displays error details and exposes a retry (Recover) action via a button. The component uses AppAssembly routing and sets page focus on navigation.","orchestrationMethods":[{"name":"Render (component markup)","line":1,"confidence":0.97,"reason":"Coordinates 5 downstream calls with 1 architectural actions.","actionKinds":["mapping","fallback"],"evidencePaths":["NexusReader.UI.Shared/Routes.razor","NexusReader.UI.Shared/Pages/NotFound.razor","NexusReader.UI.Shared/RedirectToLogin.razor","NexusReader.UI.Shared/MainHubLayout.razor","NexusReader.UI.Shared/Components/NexusIcon.razor","NexusReader.UI.Shared/Components/NexusIcon.razor"]},{"name":"Retry button onclick (anonymous lambda)","line":30,"confidence":0.65,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["retry"],"evidencePaths":["NexusReader.UI.Shared/Routes.razor","unknown"]}],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"orchestration-method","label":"Render (component markup)","line":1,"summary":"Coordinates 5 downstream calls with 1 architectural actions.","confidence":0.97,"evidencePaths":["NexusReader.UI.Shared/Routes.razor","NexusReader.UI.Shared/Pages/NotFound.razor","NexusReader.UI.Shared/RedirectToLogin.razor","NexusReader.UI.Shared/MainHubLayout.razor","NexusReader.UI.Shared/Components/NexusIcon.razor","NexusReader.UI.Shared/Components/NexusIcon.razor"]},{"kind":"orchestration-method","label":"Retry button onclick (anonymous lambda)","line":30,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.65,"evidencePaths":["NexusReader.UI.Shared/Routes.razor","unknown"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__FocusModeService.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__FocusModeService.cs.json
new file mode 100644
index 0000000..13c719a
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__FocusModeService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Services/FocusModeService.cs","purpose":"Provides a small UI service that tracks a 'focus mode' flag, persists it to browser localStorage via IJSRuntime, and notifies consumers when the flag changes.","classification":{"role":"service","layer":"frontend","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Class is FocusModeService in NexusReader.UI.Shared.Services","Uses IJSRuntime to read/write browser localStorage","Exposes an event OnFocusModeChanged and a boolean IsFocusModeActive for UI state"]},"className":"FocusModeService","methods":[{"name":"FocusModeService","line":11,"endLine":14,"signature":"(jsRuntime: IJSRuntime) -> FocusModeService","purpose":"Constructor: captures the injected IJSRuntime instance.","calls":[],"actions":[{"id":"assign_13","kind":"mapping","label":"store js runtime","line":13,"detail":"_jsRuntime = jsRuntime","visibility":"detail-only","confidence":0.7}]},{"name":"InitializeAsync","line":16,"endLine":31,"signature":"() -> Task","purpose":"Reads persisted focus-mode value from browser localStorage and activates the mode if stored as \"true\", notifying subscribers.","calls":[{"targetFile":"unknown","targetMethod":"IJSRuntime.InvokeAsync","callLine":20,"paramSummary":"calls 'localStorage.getItem' with key 'nexus_focus_mode' (awaits string)"}],"actions":[{"id":"try-catch_18","kind":"mapping","label":"protect JS interop during pre-render or unsupported env","line":18,"detail":"catch { /* ignored */ }","conditionSummary":"any exception from JS interop","outcomeLabels":["ignored"],"visibility":"detail-only","confidence":0.7},{"id":"external-call_20","kind":"external-call","label":"read from localStorage","line":20,"detail":"_jsRuntime.InvokeAsync<string>(\"localStorage.getItem\", \"nexus_focus_mode\")","visibility":"detail-only","confidence":0.7},{"id":"guard-clause_21","kind":"guard-clause","label":"activate only if stored true and not already active","line":21,"detail":"if condition then set IsFocusModeActive = true and notify","conditionSummary":"value == \"true\" && !IsFocusModeActive","outcomeLabels":["set-active","no-op"],"visibility":"detail-only","confidence":0.7},{"id":"initializeasync_branch_21_0","kind":"branch","label":"Evaluates branch condition","line":21,"detail":"if (value == \"true\" && !IsFocusModeActive)","conditionSummary":"value == \"true\" && !IsFocusModeActive","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"state-change_23","kind":"mapping","label":"set IsFocusModeActive","line":23,"detail":"IsFocusModeActive = true","visibility":"detail-only","confidence":0.7},{"id":"initializeasync_branch_24_1","kind":"branch","label":"Evaluates branch condition","line":24,"detail":"if (OnFocusModeChanged != null) await OnFocusModeChanged();","conditionSummary":"OnFocusModeChanged != null) await OnFocusModeChanged(","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"event_24","kind":"mapping","label":"notify subscribers","line":24,"detail":"if (OnFocusModeChanged != null) await OnFocusModeChanged()","visibility":"detail-only","confidence":0.7}]},{"name":"ToggleAsync","line":33,"endLine":43,"signature":"() -> Task","purpose":"Toggles the IsFocusModeActive flag, notifies subscribers, and persists the new value to localStorage (safely swallowing JS errors).","calls":[{"targetFile":"unknown","targetMethod":"IJSRuntime.InvokeVoidAsync","callLine":40,"paramSummary":"calls 'localStorage.setItem' with key 'nexus_focus_mode' and value 'true'|'false'"}],"actions":[{"id":"state-change_35","kind":"mapping","label":"toggle focus mode flag","line":35,"detail":"IsFocusModeActive = !IsFocusModeActive","visibility":"detail-only","confidence":0.7},{"id":"toggleasync_branch_36_0","kind":"branch","label":"Evaluates branch condition","line":36,"detail":"if (OnFocusModeChanged != null) await OnFocusModeChanged();","conditionSummary":"OnFocusModeChanged != null) await OnFocusModeChanged(","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"event_36","kind":"mapping","label":"notify subscribers","line":36,"detail":"if (OnFocusModeChanged != null) await OnFocusModeChanged()","visibility":"detail-only","confidence":0.7},{"id":"try-catch_38","kind":"mapping","label":"swallow errors from JS interop","line":38,"detail":"catch { }","conditionSummary":"any exception from JS interop","outcomeLabels":["ignored"],"visibility":"detail-only","confidence":0.7},{"id":"external-call_40","kind":"external-call","label":"write to localStorage","line":40,"detail":"_jsRuntime.InvokeVoidAsync(\"localStorage.setItem\", \"nexus_focus_mode\", IsFocusModeActive ? \"true\" : \"false\")","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"FocusModeService","kind":"model","line":5,"purpose":"Service that manages UI 'focus mode' state and persists it to browser localStorage while notifying subscribers of changes.","fields":[{"name":"_jsRuntime","type":"IJSRuntime","required":true,"line":7,"description":"JS interop used to read/write localStorage"},{"name":"IsFocusModeActive","type":"bool","required":true,"line":8,"description":"Current in-memory active state of focus mode"},{"name":"OnFocusModeChanged","type":"Func<Task>?","required":false,"line":9,"description":"Event invoked when focus mode changes"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["Microsoft.JSInterop (framework)","IFocusModeService (interface referenced, file not in scope)"],"patterns":["Stateful service","Event publisher/subscriber","Client-side persistence (localStorage)"],"domainConcepts":["FocusMode"],"keyDetails":"Reads/writes localStorage via IJSRuntime inside try/catch to be safe during pre-rendering; notifies subscribers via an event; swallows JS interop exceptions to avoid breaking server-side rendering.","orchestrationMethods":[{"name":"InitializeAsync","line":16,"confidence":0.89,"reason":"Contains 3 architectural actions relevant to business execution.","actionKinds":["mapping","external-call","guard-clause","branch"],"evidencePaths":["NexusReader.UI.Shared/Services/FocusModeService.cs","unknown"]},{"name":"ToggleAsync","line":33,"confidence":0.77,"reason":"Contains 2 architectural actions relevant to business execution.","actionKinds":["mapping","branch","external-call"],"evidencePaths":["NexusReader.UI.Shared/Services/FocusModeService.cs","unknown"]}],"typedContracts":[{"name":"FocusModeService","kind":"model","line":5,"fieldCount":3,"evidencePaths":["NexusReader.UI.Shared/Services/FocusModeService.cs"]}],"persistenceInteractions":[],"externalInteractions":[{"methodName":"InitializeAsync","line":20,"kind":"external-call","detail":"_jsRuntime.InvokeAsync<string>(\"localStorage.getItem\", \"nexus_focus_mode\")","evidencePaths":["NexusReader.UI.Shared/Services/FocusModeService.cs"]},{"methodName":"ToggleAsync","line":40,"kind":"external-call","detail":"_jsRuntime.InvokeVoidAsync(\"localStorage.setItem\", \"nexus_focus_mode\", IsFocusModeActive ? \"true\" : \"false\")","evidencePaths":["NexusReader.UI.Shared/Services/FocusModeService.cs"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"InitializeAsync","line":16,"summary":"Contains 3 architectural actions relevant to business execution.","confidence":0.89,"evidencePaths":["NexusReader.UI.Shared/Services/FocusModeService.cs","unknown"]},{"kind":"orchestration-method","label":"ToggleAsync","line":33,"summary":"Contains 2 architectural actions relevant to business execution.","confidence":0.77,"evidencePaths":["NexusReader.UI.Shared/Services/FocusModeService.cs","unknown"]},{"kind":"typed-contract","label":"FocusModeService","line":5,"summary":"model with 3 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Services/FocusModeService.cs"]},{"kind":"external-call","label":"InitializeAsync","line":20,"summary":"_jsRuntime.InvokeAsync<string>(\"localStorage.getItem\", \"nexus_focus_mode\")","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Services/FocusModeService.cs"]},{"kind":"external-call","label":"ToggleAsync","line":40,"summary":"_jsRuntime.InvokeVoidAsync(\"localStorage.setItem\", \"nexus_focus_mode\", IsFocusModeActive ? \"true\" : \"false\")","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Services/FocusModeService.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IFocusModeService.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IFocusModeService.cs.json
new file mode 100644
index 0000000..1b30826
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IFocusModeService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Services/IFocusModeService.cs","purpose":"Defines an abstraction for a UI focus mode service used by shared UI code to query, initialize, toggle, and observe focus-mode state.","classification":{"role":"service","layer":"frontend","confidence":0.85,"evidence":["Service naming pattern","Application/service path heuristic","Namespace NexusReader.UI.Shared.Services indicates a shared UI service","Interface name IFocusModeService and methods InitializeAsync/ToggleAsync imply UI-state management"]},"className":"IFocusModeService","methods":[{"name":"IsFocusModeActive","line":5,"endLine":5,"signature":"get IsFocusModeActive() -> bool","purpose":"Exposes whether focus mode is currently active (read-only).","calls":[],"actions":[{"id":"accessor_5","kind":"mapping","label":"Read-only boolean property","line":5,"detail":"Provides synchronous read access to the current focus-mode state.","visibility":"detail-only","confidence":0.7}]},{"name":"OnFocusModeChanged","line":6,"endLine":6,"signature":"event Func<Task>? OnFocusModeChanged","purpose":"Event subscribers are notified when focus mode changes; implementations should invoke this when state changes.","calls":[],"actions":[{"id":"event_6","kind":"mapping","label":"Publish/subscribe event","line":6,"detail":"Allows components to subscribe to asynchronous notifications about focus-mode changes.","visibility":"detail-only","confidence":0.7}]},{"name":"InitializeAsync","line":7,"endLine":7,"signature":"() -> Task","purpose":"Initialization hook for the focus-mode service (e.g., restore persisted state, subscribe to lifecycle events).","calls":[],"actions":[{"id":"startup_7","kind":"mapping","label":"Initialization entrypoint","line":7,"detail":"Declared initialization method; concrete implementations likely perform startup reads, subscription setup, or state restoration and may fire OnFocusModeChanged.","visibility":"detail-only","confidence":0.7}]},{"name":"ToggleAsync","line":8,"endLine":8,"signature":"() -> Task","purpose":"Toggles the focus-mode state and notifies subscribers of the change.","calls":[],"actions":[{"id":"orchestration_8","kind":"mapping","label":"Toggle operation","line":8,"detail":"Declared toggle command; typical implementations will flip state, persist it, and invoke OnFocusModeChanged.","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"IFocusModeService","kind":"interface","line":3,"purpose":"Abstraction for controlling and observing a UI focus mode across shared UI clients.","fields":[{"name":"IsFocusModeActive","type":"bool","required":true,"line":5,"description":"Read-only flag indicating if focus mode is active."},{"name":"OnFocusModeChanged","type":"Func<Task>?","required":false,"line":6,"description":"Asynchronous event invoked when focus-mode state changes; nullable to allow no subscribers."},{"name":"InitializeAsync","type":"Task","required":true,"line":7,"description":"Async initialization method for the service implementation."},{"name":"ToggleAsync","type":"Task","required":true,"line":8,"description":"Async method to toggle focus mode state."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Service","Observer/Event"],"domainConcepts":["FocusMode","UI state"],"keyDetails":"Interface is a small contract for UI state management; all runtime behavior is implementation-defined (initialize, toggle, and event publication).","orchestrationMethods":[],"typedContracts":[{"name":"IFocusModeService","kind":"interface","line":3,"fieldCount":4,"evidencePaths":["NexusReader.UI.Shared/Services/IFocusModeService.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"IFocusModeService","line":3,"summary":"interface with 4 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Services/IFocusModeService.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IKnowledgeGraphService.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IKnowledgeGraphService.cs.json
new file mode 100644
index 0000000..f5a18e9
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IKnowledgeGraphService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Services/IKnowledgeGraphService.cs","purpose":"Defines the UI-shared contract for a knowledge-graph state/service used by UI clients (holds current graph, active node, loading state, and exposes events and mutating operations).","classification":{"role":"service","layer":"frontend","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","namespace NexusReader.UI.Shared.Services; (shared UI service surface)","Interface exposes state properties, events and mutation methods (UpdateGraph, SetActiveNode, SetLoading, Clear)"]},"className":"IKnowledgeGraphService","methods":[{"name":"CurrentGraphData","line":7,"endLine":7,"signature":"GraphDataDto? CurrentGraphData { get; } -> GraphDataDto?","purpose":"Read-only property that returns the current knowledge graph payload held by the service.","calls":[],"actions":[{"id":"state-read_7","kind":"mapping","label":"Exposes current graph state","line":7,"detail":"Property getter for current graph data; implementation expected to return cached/held GraphDataDto","visibility":"detail-only","confidence":0.7}]},{"name":"ActiveNodeId","line":8,"endLine":8,"signature":"string? ActiveNodeId { get; } -> string?","purpose":"Read-only property exposing the currently active/selected node id in the graph.","calls":[],"actions":[{"id":"state-read_8","kind":"mapping","label":"Exposes active node id","line":8,"detail":"Property getter for currently selected node id","visibility":"detail-only","confidence":0.7}]},{"name":"IsLoading","line":9,"endLine":9,"signature":"bool IsLoading { get; } -> bool","purpose":"Read-only flag indicating whether the graph state is in a loading state.","calls":[],"actions":[{"id":"state-read_9","kind":"mapping","label":"Exposes loading state","line":9,"detail":"Property getter for loading indicator","visibility":"detail-only","confidence":0.7}]},{"name":"OnGraphUpdated","line":11,"endLine":11,"signature":"event Func<Task>? OnGraphUpdated","purpose":"Event invoked/raised when the graph data is updated; subscribers react asynchronously.","calls":[],"actions":[{"id":"event-declaration_11","kind":"mapping","label":"Publish-subscribe hook for graph updates","line":11,"detail":"Event should be invoked by implementations after UpdateGraph changes state","visibility":"detail-only","confidence":0.7}]},{"name":"OnActiveNodeChanged","line":12,"endLine":12,"signature":"event Func<string, Task>? OnActiveNodeChanged","purpose":"Event invoked when the active node changes; provides new nodeId to subscribers.","calls":[],"actions":[{"id":"event-declaration_12","kind":"mapping","label":"Publish-subscribe hook for active node changes","line":12,"detail":"Event should be invoked by implementations after SetActiveNode changes state","visibility":"detail-only","confidence":0.7}]},{"name":"OnLoadingChanged","line":13,"endLine":13,"signature":"event Func<bool, Task>? OnLoadingChanged","purpose":"Event invoked when the loading flag changes; subscribers can show/hide spinners.","calls":[],"actions":[{"id":"event-declaration_13","kind":"mapping","label":"Publish-subscribe hook for loading state changes","line":13,"detail":"Event should be invoked by implementations after SetLoading changes state","visibility":"detail-only","confidence":0.7}]},{"name":"UpdateGraph","line":15,"endLine":15,"signature":"Task UpdateGraph(GraphDataDto newData) -> Task","purpose":"Request the service to replace/merge the current graph with new data and notify listeners.","calls":[],"actions":[{"id":"orchestration_15","kind":"mapping","label":"Mutates graph state and should notify subscribers","line":15,"detail":"Implementation expected to update CurrentGraphData and raise OnGraphUpdated","visibility":"detail-only","confidence":0.7}]},{"name":"SetActiveNode","line":16,"endLine":16,"signature":"Task SetActiveNode(string nodeId) -> Task","purpose":"Set the active/selected node id and notify subscribers about the change.","calls":[],"actions":[{"id":"orchestration_16","kind":"mapping","label":"Mutates active node and notifies","line":16,"detail":"Implementation expected to update ActiveNodeId and raise OnActiveNodeChanged","visibility":"detail-only","confidence":0.7}]},{"name":"SetLoading","line":17,"endLine":17,"signature":"Task SetLoading(bool isLoading) -> Task","purpose":"Set the loading flag used by UI and notify subscribers when it changes.","calls":[],"actions":[{"id":"orchestration_17","kind":"mapping","label":"Mutates loading state and notifies","line":17,"detail":"Implementation expected to update IsLoading and raise OnLoadingChanged","visibility":"detail-only","confidence":0.7}]},{"name":"Clear","line":18,"endLine":18,"signature":"Task Clear() -> Task","purpose":"Clear/reset the current graph, active node and related UI state and notify listeners.","calls":[],"actions":[{"id":"orchestration_18","kind":"mapping","label":"Reset state and notify subscribers","line":18,"detail":"Implementation expected to set CurrentGraphData to null/empty, clear ActiveNodeId and raise events","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"IKnowledgeGraphService","kind":"interface","line":5,"purpose":"Service contract for UI components to read and mutate knowledge-graph state and subscribe to changes.","fields":[{"name":"CurrentGraphData","type":"GraphDataDto?","required":true,"line":7,"description":"Holds the current graph payload (nullable)"},{"name":"ActiveNodeId","type":"string?","required":true,"line":8,"description":"Id of the currently active/selected node"},{"name":"IsLoading","type":"bool","required":true,"line":9,"description":"Indicates whether graph data is loading"},{"name":"OnGraphUpdated","type":"Func<Task>?","required":true,"line":11,"description":"Event: invoked after graph updates"},{"name":"OnActiveNodeChanged","type":"Func<string, Task>?","required":true,"line":12,"description":"Event: invoked when active node changes"},{"name":"OnLoadingChanged","type":"Func<bool, Task>?","required":true,"line":13,"description":"Event: invoked when loading flag changes"},{"name":"UpdateGraph","type":"Task(GraphDataDto newData)","required":true,"line":15,"description":"Replace or merge current graph data"},{"name":"SetActiveNode","type":"Task(string nodeId)","required":true,"line":16,"description":"Set active node id"},{"name":"SetLoading","type":"Task(bool isLoading)","required":true,"line":17,"description":"Set loading indicator"},{"name":"Clear","type":"Task()","required":true,"line":18,"description":"Reset/clear graph and related state"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Queries.Graph"],"patterns":["Observer (events)","State holder / UI store"],"domainConcepts":["KnowledgeGraph","Node"],"keyDetails":"Interface is a UI-shared state service contract; implementations are expected to hold graph state, mutate it via UpdateGraph/SetActiveNode/SetLoading/Clear and notify subscribers via the declared events.","orchestrationMethods":[],"typedContracts":[{"name":"IKnowledgeGraphService","kind":"interface","line":5,"fieldCount":10,"evidencePaths":["NexusReader.UI.Shared/Services/IKnowledgeGraphService.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"IKnowledgeGraphService","line":5,"summary":"interface with 10 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Services/IKnowledgeGraphService.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IQuizStateService.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IQuizStateService.cs.json
new file mode 100644
index 0000000..7e722f7
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IQuizStateService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Services/IQuizStateService.cs","purpose":"Defines the UI-facing quiz state service contract used by the shared UI layer to expose current quiz state, hydration status, events, and operations for requesting/updating quiz data.","classification":{"role":"ui-store","layer":"frontend","confidence":0.8,"evidence":["Service naming pattern","Application/service path heuristic","Namespace NexusReader.UI.Shared.Services indicates shared UI layer","Interface defines state properties, events and async methods used by UI to manage quiz state"]},"className":"IQuizStateService","methods":[{"name":"CurrentQuizBlockId","line":7,"endLine":7,"signature":"() -> string?","purpose":"Exposes the identifier of the currently active quiz block.","calls":[],"actions":[{"id":"state-read_7","kind":"mapping","label":"Read current quiz block id","line":7,"detail":"Property getter exposes current quiz block identifier (nullable)","visibility":"detail-only","confidence":0.7}]},{"name":"CurrentQuiz","line":8,"endLine":8,"signature":"() -> QuizDto?","purpose":"Exposes the currently loaded quiz DTO for the UI.","calls":[],"actions":[{"id":"state-read_8","kind":"mapping","label":"Read current quiz","line":8,"detail":"Property getter exposes current QuizDto (nullable)","visibility":"detail-only","confidence":0.7}]},{"name":"IsHydrating","line":9,"endLine":9,"signature":"() -> bool","purpose":"Indicates whether the service is in a hydration (loading/restore) phase.","calls":[],"actions":[{"id":"state-read_9","kind":"mapping","label":"Read hydrating flag","line":9,"detail":"Property getter exposes hydrating status","visibility":"detail-only","confidence":0.7}]},{"name":"HasNewQuiz","line":10,"endLine":10,"signature":"() -> bool","purpose":"Indicates whether there is a new/unseen quiz available.","calls":[],"actions":[{"id":"state-read_10","kind":"mapping","label":"Read new-quiz indicator","line":10,"detail":"Property getter exposes whether a new quiz exists","visibility":"detail-only","confidence":0.7}]},{"name":"OnQuizRequested","line":12,"endLine":12,"signature":"event Func<string, Task>?","purpose":"Event invoked when a quiz is requested (by block id).","calls":[],"actions":[{"id":"event_12","kind":"mapping","label":"Quiz request event","line":12,"detail":"Subscribers can handle quiz requests; carries blockId string","visibility":"detail-only","confidence":0.7}]},{"name":"OnQuizUpdated","line":13,"endLine":13,"signature":"event Func<Task>?","purpose":"Event invoked when the quiz state is updated.","calls":[],"actions":[{"id":"event_13","kind":"mapping","label":"Quiz updated event","line":13,"detail":"Subscribers can react to quiz state updates","visibility":"detail-only","confidence":0.7}]},{"name":"RequestQuiz","line":15,"endLine":15,"signature":"(blockId: string) -> Task","purpose":"Requests loading or activation of a quiz for the given block id (runtime surface for orchestration).","calls":[],"actions":[{"id":"orchestration_15","kind":"mapping","label":"Request quiz operation (contract)","line":15,"detail":"Interface method used to trigger quiz load/activation; implementations likely emit OnQuizRequested and start async fetch","visibility":"detail-only","confidence":0.7}]},{"name":"SetQuiz","line":16,"endLine":16,"signature":"(blockId: string?, quiz: QuizDto?) -> Task","purpose":"Sets or clears the current quiz and associated block id (state update entrypoint).","calls":[],"actions":[{"id":"state-write_16","kind":"mapping","label":"Set current quiz state","line":16,"detail":"Contract for implementations to update CurrentQuiz and CurrentQuizBlockId; likely triggers OnQuizUpdated","visibility":"detail-only","confidence":0.7}]},{"name":"SetHydrating","line":17,"endLine":17,"signature":"(hydrating: bool) -> Task","purpose":"Toggles the hydrating flag to indicate loading/restoration state.","calls":[],"actions":[{"id":"state-write_17","kind":"mapping","label":"Set hydrating flag","line":17,"detail":"Contract for implementations to set IsHydrating","visibility":"detail-only","confidence":0.7}]},{"name":"MarkQuizAsSeen","line":18,"endLine":18,"signature":"() -> Task","purpose":"Marks the current quiz as seen (clears new-quiz indicator).","calls":[],"actions":[{"id":"state-write_18","kind":"mapping","label":"Clear new-quiz indicator","line":18,"detail":"Contract for implementations to update HasNewQuiz / persistence as needed","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"IQuizStateService","kind":"interface","line":5,"purpose":"Contract describing quiz state, events and operations exposed to UI components.","fields":[{"name":"CurrentQuizBlockId","type":"string?","required":false,"line":7,"description":"Identifier of the currently active quiz block (nullable)"},{"name":"CurrentQuiz","type":"QuizDto?","required":false,"line":8,"description":"Current quiz DTO (nullable); QuizDto is declared in NexusReader.Application.Queries.Quiz"},{"name":"IsHydrating","type":"bool","required":true,"line":9,"description":"Whether the service is currently hydrating/restoring state"},{"name":"HasNewQuiz","type":"bool","required":true,"line":10,"description":"Flag indicating a new/unseen quiz"},{"name":"OnQuizRequested","type":"event Func<string, Task>?","required":false,"line":12,"description":"Event fired to request a quiz by block id"},{"name":"OnQuizUpdated","type":"event Func<Task>?","required":false,"line":13,"description":"Event fired when quiz state changes"},{"name":"RequestQuiz","type":"method","required":true,"line":15,"description":"Request a quiz by block id (async)"},{"name":"SetQuiz","type":"method","required":true,"line":16,"description":"Set or clear current quiz state (async)"},{"name":"SetHydrating","type":"method","required":true,"line":17,"description":"Set hydrating status (async)"},{"name":"MarkQuizAsSeen","type":"method","required":true,"line":18,"description":"Mark the current quiz as seen (async)"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Queries.Quiz"],"patterns":["State Service","Observer (event-driven)"],"domainConcepts":["Quiz"],"keyDetails":"Interface is a runtime-facing contract for UI components across multiple clients (WASM, MAUI, Server) to manage quiz state; no implementation details present in this file.","orchestrationMethods":[],"typedContracts":[{"name":"IQuizStateService","kind":"interface","line":5,"fieldCount":10,"evidencePaths":["NexusReader.UI.Shared/Services/IQuizStateService.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"IQuizStateService","line":5,"summary":"interface with 10 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Services/IQuizStateService.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IReaderInteractionService.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IReaderInteractionService.cs.json
new file mode 100644
index 0000000..2cf587c
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IReaderInteractionService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Services/IReaderInteractionService.cs","purpose":"Defines a UI-shared interaction contract for the reader component: event declarations and async methods used by UI components to notify selection, scrolling, and highlighting actions.","classification":{"role":"service","layer":"frontend","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","namespace NexusReader.UI.Shared.Services","Interface exposes events and async methods for UI interactions (Select/Scroll/Highlight/TextSelected)"]},"className":"IReaderInteractionService","methods":[{"name":"OnNodeSelected","line":5,"endLine":5,"signature":"event Func<string, Task>? -> event","purpose":"Event raised when a node is selected (subscribers handle selection).","calls":[],"actions":[{"id":"event-declaration_5","kind":"mapping","label":"Node selection event","line":5,"detail":"Declares an async event subscribers can register to receive nodeId string.","visibility":"detail-only","confidence":0.7}]},{"name":"OnScrollToBlockRequested","line":6,"endLine":6,"signature":"event Func<string, Task>? -> event","purpose":"Event raised to request scrolling to a specific block.","calls":[],"actions":[{"id":"event-declaration_6","kind":"mapping","label":"Scroll-to-block event","line":6,"detail":"Declares an async event subscribers can register to receive blockId string.","visibility":"detail-only","confidence":0.7}]},{"name":"OnHighlightBlockRequested","line":7,"endLine":7,"signature":"event Func<string, Task>? -> event","purpose":"Event raised to request highlighting of a block.","calls":[],"actions":[{"id":"event-declaration_7","kind":"mapping","label":"Highlight-block event","line":7,"detail":"Declares an async event subscribers can register to receive blockId string.","visibility":"detail-only","confidence":0.7}]},{"name":"OnTextSelected","line":8,"endLine":8,"signature":"event Func<string, string, SelectionCoordinates, Task>? -> event","purpose":"Event raised when text is selected, providing text, blockId and coordinates.","calls":[],"actions":[{"id":"event-declaration_8","kind":"mapping","label":"Text-selected event","line":8,"detail":"Declares an async event subscribers can register to receive selected text, blockId, and coordinates.","visibility":"detail-only","confidence":0.7}]},{"name":"NotifyNodeSelected","line":10,"endLine":10,"signature":"(nodeId: string) -> Task","purpose":"Contract method to notify that a node has been selected; implementers are expected to raise OnNodeSelected.","calls":[],"actions":[{"id":"orchestration_10","kind":"mapping","label":"Notify/raise node selected","line":10,"detail":"Interface method: implementer should trigger OnNodeSelected event with provided nodeId.","visibility":"detail-only","confidence":0.7},{"id":"notifynodeselected_notification_10_0","kind":"notification","label":"Sends notification","line":10,"detail":"Task NotifyNodeSelected(string nodeId);","visibility":"secondary-visible","confidence":0.83}]},{"name":"RequestScrollToBlock","line":11,"endLine":11,"signature":"(blockId: string) -> Task","purpose":"Contract method to request scrolling to a block; implementers should raise OnScrollToBlockRequested.","calls":[],"actions":[{"id":"orchestration_11","kind":"mapping","label":"Request scroll","line":11,"detail":"Interface method: implementer should trigger OnScrollToBlockRequested event with blockId.","visibility":"detail-only","confidence":0.7}]},{"name":"RequestHighlightBlock","line":12,"endLine":12,"signature":"(blockId: string) -> Task","purpose":"Contract method to request highlighting a block; implementers should raise OnHighlightBlockRequested.","calls":[],"actions":[{"id":"orchestration_12","kind":"mapping","label":"Request highlight","line":12,"detail":"Interface method: implementer should trigger OnHighlightBlockRequested event with blockId.","visibility":"detail-only","confidence":0.7}]},{"name":"NotifyTextSelected","line":13,"endLine":13,"signature":"(text: string, blockId: string, coords: SelectionCoordinates) -> Task","purpose":"Contract method to notify that text was selected; implementers should raise OnTextSelected with coordinates.","calls":[],"actions":[{"id":"orchestration_13","kind":"mapping","label":"Notify text selection","line":13,"detail":"Interface method: implementer should trigger OnTextSelected event passing text, blockId and SelectionCoordinates.","visibility":"detail-only","confidence":0.7},{"id":"notifytextselected_notification_13_0","kind":"notification","label":"Sends notification","line":13,"detail":"Task NotifyTextSelected(string text, string blockId, SelectionCoordinates coords);","visibility":"secondary-visible","confidence":0.83}]}],"types":[{"name":"SelectionCoordinates","kind":"dto","line":16,"purpose":"Represents the visual coordinates of a text selection (top, left and width).","fields":[{"name":"Top","type":"double","required":true,"line":16,"description":"Y coordinate (top) of selection."},{"name":"Left","type":"double","required":true,"line":16,"description":"X coordinate (left) of selection."},{"name":"Width","type":"double","required":true,"line":16,"description":"Width of the selection area."}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Observer/Event Aggregator","UI interaction service (publish-subscribe)"],"domainConcepts":["Node selection","Block scrolling/highlighting","Text selection coordinates"],"keyDetails":"Interface provides a lightweight event-driven contract for decoupling reader UI components across projects (WASM, MAUI, client), exposing both events and async notification methods that implementers should use to raise those events.","orchestrationMethods":[],"typedContracts":[{"name":"SelectionCoordinates","kind":"dto","line":16,"fieldCount":3,"evidencePaths":["NexusReader.UI.Shared/Services/IReaderInteractionService.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"SelectionCoordinates","line":16,"summary":"dto with 3 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Services/IReaderInteractionService.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IReaderNavigationService.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IReaderNavigationService.cs.json
new file mode 100644
index 0000000..61b52d5
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IReaderNavigationService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Services/IReaderNavigationService.cs","purpose":"Defines the UI-shared navigation contract for the reader (current ebook/chapter state, navigation operations and an event) so different UI hosts (WASM, MAUI, server UI) can coordinate reader navigation/state.","classification":{"role":"service","layer":"frontend","confidence":0.8,"evidence":["Service naming pattern","Application/service path heuristic","namespace NexusReader.UI.Shared.Services (line 1) indicates a UI shared service interface","Interface name IReaderNavigationService and members (NavigateToBook, GoToChapter, OnNavigationChanged) expose navigation/state behavior"]},"className":"IReaderNavigationService","methods":[{"name":"CurrentEbookId","line":5,"endLine":5,"signature":"() -> Guid","purpose":"Property: exposes the currently active ebook identifier.","calls":[],"actions":[{"id":"exposes-property_5","kind":"mapping","label":"Current ebook identifier","line":5,"detail":"read-only Guid property","visibility":"detail-only","confidence":0.7}]},{"name":"CurrentChapterIndex","line":6,"endLine":6,"signature":"() -> int","purpose":"Property: exposes the zero-based index of the current chapter.","calls":[],"actions":[{"id":"exposes-property_6","kind":"mapping","label":"Current chapter index","line":6,"detail":"read-only int property","visibility":"detail-only","confidence":0.7}]},{"name":"TotalChapters","line":7,"endLine":7,"signature":"() -> int","purpose":"Property: exposes the total number of chapters for the active ebook.","calls":[],"actions":[{"id":"exposes-property_7","kind":"mapping","label":"Total chapters count","line":7,"detail":"read-only int property","visibility":"detail-only","confidence":0.7}]},{"name":"ChapterTitle","line":8,"endLine":8,"signature":"() -> string","purpose":"Property: exposes the title of the current chapter.","calls":[],"actions":[{"id":"exposes-property_8","kind":"mapping","label":"Chapter title","line":8,"detail":"read-only string property","visibility":"detail-only","confidence":0.7}]},{"name":"OnNavigationChanged","line":10,"endLine":10,"signature":"() -> event Func<Task>?","purpose":"Event: subscribers are notified asynchronously when navigation/state changes.","calls":[],"actions":[{"id":"event-declaration_10","kind":"mapping","label":"Navigation changed event","line":10,"detail":"event Func<Task>? for async notification to subscribers","visibility":"detail-only","confidence":0.7}]},{"name":"GoToChapter","line":12,"endLine":12,"signature":"(index: int) -> Task","purpose":"Requests navigation to a specific chapter index (asynchronous).","calls":[],"actions":[{"id":"operation-declaration_12","kind":"mapping","label":"Navigate to chapter","line":12,"detail":"async operation to move reader to a given chapter index","visibility":"detail-only","confidence":0.7}]},{"name":"GoToNextChapter","line":13,"endLine":13,"signature":"() -> Task","purpose":"Requests navigation to the next chapter (asynchronous).","calls":[],"actions":[{"id":"operation-declaration_13","kind":"mapping","label":"Navigate to next chapter","line":13,"detail":"async operation to advance to the next chapter","visibility":"detail-only","confidence":0.7}]},{"name":"GoToPreviousChapter","line":14,"endLine":14,"signature":"() -> Task","purpose":"Requests navigation to the previous chapter (asynchronous).","calls":[],"actions":[{"id":"operation-declaration_14","kind":"mapping","label":"Navigate to previous chapter","line":14,"detail":"async operation to go back one chapter","visibility":"detail-only","confidence":0.7}]},{"name":"UpdateMetadataAsync","line":15,"endLine":15,"signature":"(currentIndex: int, totalChapters: int, title: string) -> Task","purpose":"Updates reader-visible metadata (current index, total chapters, chapter title) asynchronously.","calls":[],"actions":[{"id":"operation-declaration_15","kind":"mapping","label":"Update metadata","line":15,"detail":"async update of navigation metadata, likely triggers OnNavigationChanged","visibility":"detail-only","confidence":0.7}]},{"name":"NavigateToBook","line":20,"endLine":20,"signature":"(bookId: Guid) -> void","purpose":"Navigate to the reader for a specific book and record the current ebook ID (contract).","calls":[],"actions":[{"id":"operation-declaration_20","kind":"mapping","label":"Navigate and record book","line":20,"detail":"declares navigation to a book and recording of book id (no implementation here)","visibility":"detail-only","confidence":0.7}]},{"name":"SetBook","line":25,"endLine":25,"signature":"(bookId: Guid, chapterIndex: int = 0) -> void","purpose":"Sets active book context (ID and optional chapter) without triggering routing.","calls":[],"actions":[{"id":"operation-declaration_25","kind":"mapping","label":"Set book context","line":25,"detail":"sets in-memory/host context for book and chapter; explicitly notes no routing side-effects","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"IReaderNavigationService","kind":"interface","line":3,"purpose":"Contract for a UI-shared reader navigation service: exposes current reader state, navigation methods, metadata update, and an async event.","fields":[{"name":"CurrentEbookId","type":"Guid","required":true,"line":5,"description":"ID of the currently active ebook"},{"name":"CurrentChapterIndex","type":"int","required":true,"line":6,"description":"Zero-based index of the current chapter"},{"name":"TotalChapters","type":"int","required":true,"line":7,"description":"Total number of chapters for the active ebook"},{"name":"ChapterTitle","type":"string","required":true,"line":8,"description":"Title of the current chapter"},{"name":"OnNavigationChanged","type":"Func<Task>?","required":false,"line":10,"description":"Async event invoked when navigation or metadata changes"},{"name":"GoToChapter","type":"method","required":true,"line":12,"description":"Async method to navigate to a given chapter index"},{"name":"GoToNextChapter","type":"method","required":true,"line":13,"description":"Async method to navigate to the next chapter"},{"name":"GoToPreviousChapter","type":"method","required":true,"line":14,"description":"Async method to navigate to the previous chapter"},{"name":"UpdateMetadataAsync","type":"method","required":true,"line":15,"description":"Async method to update current index, total chapters and title"},{"name":"NavigateToBook","type":"method","required":true,"line":20,"description":"Synchronous contract to navigate to a book and record its ID"},{"name":"SetBook","type":"method","required":true,"line":25,"description":"Synchronous contract to set the active book/chapter without routing"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Navigation Service","UI Shared Contract"],"domainConcepts":["Ebook","Chapter","Reader Navigation/State"],"keyDetails":"A small interface in the UI.Shared layer that centralizes reader navigation state and actions across hosts; implementations will coordinate routing, in-memory context, and notify subscribers via OnNavigationChanged.","orchestrationMethods":[],"typedContracts":[{"name":"IReaderNavigationService","kind":"interface","line":3,"fieldCount":11,"evidencePaths":["NexusReader.UI.Shared/Services/IReaderNavigationService.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"IReaderNavigationService","line":3,"summary":"interface with 11 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Services/IReaderNavigationService.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__ISyncService.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__ISyncService.cs.json
new file mode 100644
index 0000000..ac59856
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__ISyncService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Services/ISyncService.cs","purpose":"Defines a shared UI-facing synchronization service contract for initializing sync, updating reading progress for ebooks, receiving progress events, and disposing the sync component.","classification":{"role":"service","layer":"frontend","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","namespace NexusReader.UI.Shared.Services","interface ISyncService with async lifecycle and progress methods and an event"]},"className":"ISyncService","methods":[{"name":"InitializeAsync","line":7,"endLine":7,"signature":"() -> Task<Result>","purpose":"Starts or prepares the sync subsystem (async), returning a FluentResults Result indicating success/failure.","calls":[],"actions":[{"id":"declaration_7","kind":"mapping","label":"async initialization method declared","line":7,"detail":"Contract method that implementers will perform startup/initialization work and return a FluentResults.Result","visibility":"detail-only","confidence":0.7}]},{"name":"UpdateProgressAsync","line":8,"endLine":8,"signature":"(pageId: string, ebookId: Guid, progress: double, chapterTitle: string? , chapterIndex: int) -> Task<Result>","purpose":"Requests an update of reading progress for a given ebook/page, returning a Result indicating success/failure.","calls":[],"actions":[{"id":"declaration_8","kind":"mapping","label":"progress update operation declared","line":8,"detail":"Contract method for updating persisted or remote progress; parameters include page id, ebook id, progress fraction, optional chapter title and chapter index","visibility":"detail-only","confidence":0.7}]},{"name":"OnProgressReceived","line":9,"endLine":9,"signature":"event Func<string, DateTime, Task>","purpose":"Event that consumers can subscribe to receive progress notifications (pageId and timestamp) asynchronously.","calls":[],"actions":[{"id":"event-declaration_9","kind":"mapping","label":"progress notification event","line":9,"detail":"Defines an async event taking (string pageId, DateTime timestamp) -> Task for subscribers to handle incoming progress notifications","visibility":"detail-only","confidence":0.7}]},{"name":"DisposeAsync","line":10,"endLine":10,"signature":"() -> Task","purpose":"Asynchronously disposes or tears down any resources held by the sync implementation.","calls":[],"actions":[{"id":"declaration_10","kind":"mapping","label":"async disposal method declared","line":10,"detail":"Contract method for cleanup/finalization by implementers","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"ISyncService","kind":"interface","line":5,"purpose":"Service contract for synchronization operations used by the UI/shared layer (initialize, update progress, notify progress, dispose).","fields":[{"name":"InitializeAsync","type":"Task<Result>","required":true,"line":7,"description":"Async initialization entry point"},{"name":"UpdateProgressAsync","type":"Task<Result>","required":true,"line":8,"description":"Async progress update method with page and ebook identifiers plus chapter info"},{"name":"OnProgressReceived","type":"event Func<string, DateTime, Task>","required":true,"line":9,"description":"Event for notifying subscribers when progress information is received"},{"name":"DisposeAsync","type":"Task","required":true,"line":10,"description":"Async disposal/cleanup method"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Service Interface","Event-based notification"],"domainConcepts":["Sync","Progress","Ebook"],"keyDetails":"This interface is a lightweight contract in the UI.Shared project for sync lifecycle and progress updates; implementations will handle persistence/remote calls and raise OnProgressReceived to notify listeners.","orchestrationMethods":[],"typedContracts":[{"name":"ISyncService","kind":"interface","line":5,"fieldCount":4,"evidencePaths":["NexusReader.UI.Shared/Services/ISyncService.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"ISyncService","line":5,"summary":"interface with 4 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Services/ISyncService.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IThemeService.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IThemeService.cs.json
new file mode 100644
index 0000000..3252cd9
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IThemeService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Services/IThemeService.cs","purpose":"Defines a UI theme service contract used by UI projects to read current theme mode, toggle it, and notify subscribers when the theme changes.","classification":{"role":"service","layer":"frontend","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","file path: NexusReader.UI.Shared/Services/IThemeService.cs","interface name IThemeService and members IsLightMode, ToggleTheme, OnThemeChanged (UI concerns)"]},"className":"IThemeService","methods":[{"name":"IsLightMode","line":5,"endLine":5,"signature":"() -> bool","purpose":"Read-only property that reports whether the current UI theme is light mode.","calls":[],"actions":[{"id":"state-read_5","kind":"mapping","label":"Reports current theme mode","line":5,"detail":"get-only property exposing current theme (light/dark)","visibility":"detail-only","confidence":0.7}]},{"name":"OnThemeChanged","line":6,"endLine":6,"signature":"() -> event Func<Task>?","purpose":"Event that consumers can subscribe to in order to be notified when the theme changes.","calls":[],"actions":[{"id":"event_6","kind":"mapping","label":"Notifies subscribers of theme changes","line":6,"detail":"Event delegate typed as Func<Task> for async notification","visibility":"detail-only","confidence":0.7}]},{"name":"ToggleTheme","line":7,"endLine":7,"signature":"() -> Task","purpose":"Contract to toggle the UI theme (light <-> dark) and notify subscribers.","calls":[],"actions":[{"id":"orchestration_7","kind":"mapping","label":"Toggle and notify","line":7,"detail":"Implementations should switch IsLightMode state and trigger OnThemeChanged; method returns Task for async completion","visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"IThemeService","kind":"interface","line":3,"purpose":"Service contract for UI theme state, toggling, and change notifications across UI projects.","fields":[{"name":"IsLightMode","type":"bool","required":true,"line":5,"description":"get-only property indicating whether UI is in light mode"},{"name":"OnThemeChanged","type":"Func<Task>?","required":false,"line":6,"description":"async event subscribers can attach to for theme change notifications"},{"name":"ToggleTheme","type":"Task","required":true,"line":7,"description":"async method to toggle theme and notify subscribers"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Service","Observer (event)"],"domainConcepts":["Theme","UI state","Change notification"],"keyDetails":"Interface defines a minimal async contract for toggling UI theme and notifying subscribers; implementation details (persistence, platform specifics, invocation of event) are left to concrete classes.","orchestrationMethods":[],"typedContracts":[{"name":"IThemeService","kind":"interface","line":3,"fieldCount":3,"evidencePaths":["NexusReader.UI.Shared/Services/IThemeService.cs"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"IThemeService","line":3,"summary":"interface with 3 fields.","confidence":0.8,"evidencePaths":["NexusReader.UI.Shared/Services/IThemeService.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IdentityService.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IdentityService.cs.json
new file mode 100644
index 0000000..1542599
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__IdentityService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Services/IdentityService.cs","purpose":"UI-side identity/auth helper for the shared UI layer: performs register/login/logout, manages tokens in native storage, fetches/caches the user profile, refreshes tokens and notifies the authentication state provider.","classification":{"role":"service","layer":"frontend","confidence":0.86,"evidence":["Service naming pattern","Application/service path heuristic","Namespace NexusReader.UI.Shared.Services","Uses HttpClient, INativeStorageService and AuthenticationStateProvider; manages tokens and profile"]},"className":"IdentityService","methods":[{"name":"IdentityService","line":23,"endLine":31,"signature":"(httpClient: HttpClient, storageService: INativeStorageService, authStateProvider: AuthenticationStateProvider?) -> IdentityService","purpose":"Constructor: injects HttpClient, native storage and optional auth state provider.","calls":[],"actions":[{"id":"assign_28","kind":"mapping","label":"Store injected dependencies","line":28,"detail":"_httpClient/_storageService/_authStateProvider assigned","visibility":"detail-only","confidence":0.7}]},{"name":"RegisterAsync","line":33,"endLine":44,"signature":"(email: string, password: string) -> Task<Result>","purpose":"Posts registration request to identity/register and returns success/failure, with network error handling.","calls":[],"actions":[{"id":"external-http_37","kind":"mapping","label":"POST identity/register","line":37,"detail":"await _httpClient.PostAsJsonAsync(\"identity/register\", new { email, password })","visibility":"detail-only","confidence":0.7},{"id":"branch_38","kind":"branch","label":"Map HTTP status to Result","line":38,"conditionSummary":"response.IsSuccessStatusCode","outcomeLabels":["Ok","Fail with message 'Rejestracja nie powiodła się.'"],"visibility":"detail-only","confidence":0.7},{"id":"registerasync_return_38_0","kind":"return","label":"Returns result","line":38,"detail":"return response.IsSuccessStatusCode ? Result.Ok() : Result.Fail(\"Rejestracja nie powiodła się.\");","visibility":"detail-only","confidence":0.7},{"id":"catch_40","kind":"mapping","label":"Network exception handling","line":40,"detail":"Returns Result.Fail with caused exception","visibility":"detail-only","confidence":0.7},{"id":"registerasync_return_42_1","kind":"return","label":"Returns result","line":42,"detail":"return Result.Fail(new Error(\"Błąd sieci podczas rejestracji.\").CausedBy(ex));","visibility":"detail-only","confidence":0.7}]},{"name":"LoginAsync","line":46,"endLine":102,"signature":"(email: string, password: string, rememberMe: bool = false) -> Task<Result>","purpose":"Performs login, stores access/refresh tokens, clears cached profile, notifies auth provider, fetches profile and persists user info; handles deserialization and network errors.","calls":[{"targetFile":"self","targetMethod":"GetProfileAsync","callLine":77,"paramSummary":"no params"},{"targetFile":"unknown","targetMethod":"SaveSecureString","callLine":67,"paramSummary":"TokenKey, accessToken"},{"targetFile":"unknown","targetMethod":"SaveSecureString","callLine":70,"paramSummary":"RefreshTokenKey, refreshToken"},{"targetFile":"unknown","targetMethod":"SaveSecureString","callLine":81,"paramSummary":"StorageKeys.UserEmail, profile.Email"},{"targetFile":"unknown","targetMethod":"SaveSecureString","callLine":82,"paramSummary":"StorageKeys.UserTenant, profile.TenantId.ToString()"},{"targetFile":"unknown","targetMethod":"SaveSecureString","callLine":85,"paramSummary":"StorageKeys.UserRoles, rolesStr"},{"targetFile":"unknown","targetMethod":"ClearCache","callLine":74,"paramSummary":"cast _authStateProvider as NexusAuthenticationStateProvider"},{"targetFile":"unknown","targetMethod":"NotifyUserAuthentication","callLine":87,"paramSummary":"profile.Email, profile.TenantId.ToString(), rolesStr"}],"actions":[{"id":"external-http_50","kind":"mapping","label":"POST identity/login","line":50,"detail":"await _httpClient.PostAsJsonAsync(\"identity/login\", new { email, password })","visibility":"detail-only","confidence":0.7},{"id":"loginasync_branch_52_0","kind":"branch","label":"Evaluates branch condition","line":52,"detail":"if (response.IsSuccessStatusCode)","conditionSummary":"response.IsSuccessStatusCode","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_52","kind":"branch","label":"Handle non-success HTTP","line":52,"conditionSummary":"response.IsSuccessStatusCode","outcomeLabels":["process success response","return Result.Fail('Nieprawidłowy e-mail lub hasło.')"],"visibility":"detail-only","confidence":0.7},{"id":"deserialization_58","kind":"mapping","label":"Read and validate login response JSON","line":58,"detail":"await response.Content.ReadFromJsonAsync<LoginResponse>(); 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__KnowledgeCoordinator.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__KnowledgeCoordinator.cs.json
new file mode 100644
index 0000000..11918de
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__KnowledgeCoordinator.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs","purpose":"Coordinator service in the UI.Shared layer that orchestrates knowledge graph generation, updates, quiz requests, and UI interactions (scroll/highlight) by delegating to platform, graph, quiz and knowledge services and exposing an OnGraphUpdated event.","classification":{"role":"service","layer":"frontend","confidence":0.85,"evidence":["Service naming pattern","Application/service path heuristic","Class named KnowledgeCoordinator located in UI.Shared.Services","References to IPlatformService, IReaderInteractionService and graph/quiz services and wires UI events"]},"className":"KnowledgeCoordinator","methods":[{"name":"KnowledgeCoordinator","line":26,"endLine":42,"signature":"(IKnowledgeService knowledgeService, IKnowledgeGraphService graphService, IQuizStateService quizService, IPlatformService platformService, IReaderInteractionService interactionService, ILogger<KnowledgeCoordinator> logger) -> 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__KnowledgeGraphService.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__KnowledgeGraphService.cs.json
new file mode 100644
index 0000000..9afa990
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__KnowledgeGraphService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Services/KnowledgeGraphService.cs","purpose":"Client-side shared UI service that holds and broadcasts knowledge-graph state (current graph, active node, loading) for consumers via async events.","classification":{"role":"service","layer":"frontend","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","namespace NexusReader.UI.Shared.Services (UI shared layer)","class KnowledgeGraphService exposes state and events for graph updates (state holder / observable)"]},"className":"KnowledgeGraphService","methods":[{"name":"UpdateGraph","line":15,"endLine":21,"signature":"(newData: GraphDataDto) -> Task","purpose":"Replace the current graph data, mark loading false, and notify listeners that loading and graph have changed.","calls":[{"targetFile":"self","targetMethod":"OnLoadingChanged (event invoke)","callLine":19,"paramSummary":"false"},{"targetFile":"self","targetMethod":"OnGraphUpdated (event 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__NexusAuthenticationStateProvider.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__NexusAuthenticationStateProvider.cs.json
new file mode 100644
index 0000000..4ac6442
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__NexusAuthenticationStateProvider.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs","purpose":"Blazor AuthenticationStateProvider implementation that derives user identity from a local secure storage-backed token/email/tenant/roles cache, supports cached state, and notifies consumers on changes.","classification":{"role":"service","layer":"frontend","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Inherits Microsoft.AspNetCore.Components.Authorization.AuthenticationStateProvider","Depends on INativeStorageService to read persisted auth token/email/roles","Provides NotifyAuthenticationStateChanged semantics and caching"]},"className":"NexusAuthenticationStateProvider","methods":[{"name":"NexusAuthenticationStateProvider","line":18,"endLine":21,"signature":"(INativeStorageService storageService) -> NexusAuthenticationStateProvider","purpose":"Constructor that injects a native storage service used to read persisted auth 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__QuizStateService.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__QuizStateService.cs.json
new file mode 100644
index 0000000..f3d6fc0
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__QuizStateService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Services/QuizStateService.cs","purpose":"Provides an in-memory UI/shared service that holds the current quiz state, exposes events for consumers to request and react to quiz updates, and manages hydration/new-quiz flags for UI components.","classification":{"role":"service","layer":"frontend","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Namespace: NexusReader.UI.Shared.Services","Implements IQuizStateService and holds UI state & events (CurrentQuiz, IsHydrating, OnQuizUpdated)"]},"className":"QuizStateService","methods":[{"name":"RequestQuiz","line":15,"endLine":19,"signature":"(blockId: string) -> Task","purpose":"Sets the requested quiz block id and notifies subscribers that a quiz was requested.","calls":[{"targetFile":"self","targetMethod":"OnQuizRequested","callLine":18,"paramSummary":"blockId (string) passed to event subscribers"}],"actions":[{"id":"state-write_17","kind":"mapping","label":"Set CurrentQuizBlockId","line":17,"detail":"CurrentQuizBlockId = blockId","visibility":"detail-only","confidence":0.7},{"id":"requestquiz_branch_18_0","kind":"branch","label":"Evaluates branch condition","line":18,"detail":"if (OnQuizRequested != null) await OnQuizRequested(blockId);","conditionSummary":"OnQuizRequested != null) await OnQuizRequested(blockId","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_18","kind":"guard-clause","label":"Invoke OnQuizRequested only when non-null","line":18,"detail":"if (OnQuizRequested != null) await OnQuizRequested(blockId);","conditionSummary":"OnQuizRequested != null","outcomeLabels":["invoke","skip"],"visibility":"detail-only","confidence":0.7}]},{"name":"SetQuiz","line":21,"endLine":28,"signature":"(blockId: string?, quiz: QuizDto?) -> Task","purpose":"Updates the stored quiz state (block id, quiz payload, hydration flag, new-quiz flag) and notifies subscribers of the update.","calls":[{"targetFile":"self","targetMethod":"OnQuizUpdated","callLine":27,"paramSummary":"no params; signals update to subscribers"}],"actions":[{"id":"state-write_23","kind":"mapping","label":"Set CurrentQuizBlockId","line":23,"detail":"CurrentQuizBlockId = blockId","visibility":"detail-only","confidence":0.7},{"id":"state-write_24","kind":"mapping","label":"Set CurrentQuiz","line":24,"detail":"CurrentQuiz = quiz","visibility":"detail-only","confidence":0.7},{"id":"state-write_25","kind":"mapping","label":"Clear IsHydrating","line":25,"detail":"IsHydrating = false","visibility":"detail-only","confidence":0.7},{"id":"state-write_26","kind":"mapping","label":"Set HasNewQuiz based on presence of quiz","line":26,"detail":"HasNewQuiz = quiz != null","visibility":"detail-only","confidence":0.7},{"id":"setquiz_branch_27_0","kind":"branch","label":"Evaluates branch condition","line":27,"detail":"if (OnQuizUpdated != null) await OnQuizUpdated();","conditionSummary":"OnQuizUpdated != null) await OnQuizUpdated(","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_27","kind":"guard-clause","label":"Invoke OnQuizUpdated only when non-null","line":27,"detail":"if (OnQuizUpdated != null) await OnQuizUpdated();","conditionSummary":"OnQuizUpdated != null","outcomeLabels":["invoke","skip"],"visibility":"detail-only","confidence":0.7}]},{"name":"SetHydrating","line":30,"endLine":34,"signature":"(hydrating: bool) -> Task","purpose":"Toggles the IsHydrating flag and notifies subscribers of the update.","calls":[{"targetFile":"self","targetMethod":"OnQuizUpdated","callLine":33,"paramSummary":"no params; 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signals update to subscribers"}],"actions":[{"id":"markquizasseen_guard-clause_38_0","kind":"guard-clause","label":"Guards early exit or rejection path","line":38,"detail":"if (!HasNewQuiz) return;","conditionSummary":"!HasNewQuiz","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"guard-clause_38","kind":"guard-clause","label":"Return immediately when no new quiz","line":38,"detail":"if (!HasNewQuiz) return;","conditionSummary":"!HasNewQuiz","outcomeLabels":["return","continue"],"visibility":"detail-only","confidence":0.7},{"id":"state-write_39","kind":"mapping","label":"Clear HasNewQuiz","line":39,"detail":"HasNewQuiz = false","visibility":"detail-only","confidence":0.7},{"id":"markquizasseen_branch_40_1","kind":"branch","label":"Evaluates branch condition","line":40,"detail":"if (OnQuizUpdated != null) await OnQuizUpdated();","conditionSummary":"OnQuizUpdated != null) await OnQuizUpdated(","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_40","kind":"guard-clause","label":"Invoke OnQuizUpdated only when non-null","line":40,"detail":"if (OnQuizUpdated != null) await OnQuizUpdated();","conditionSummary":"OnQuizUpdated != null","outcomeLabels":["invoke","skip"],"visibility":"detail-only","confidence":0.7}]}],"types":[{"name":"QuizStateService","kind":"model","line":5,"purpose":"In-memory UI/shared service holding the current quiz, hydration and new-quiz flags and exposing events for request/update notifications.","fields":[{"name":"CurrentQuizBlockId","type":"string?","required":false,"line":7,"description":"Identifier of the currently requested quiz block"},{"name":"CurrentQuiz","type":"QuizDto?","required":false,"line":8,"description":"The currently loaded quiz DTO (nullable)"},{"name":"IsHydrating","type":"bool","required":true,"line":9,"description":"Flag indicating whether the service is currently hydrating state"},{"name":"HasNewQuiz","type":"bool","required":true,"line":10,"description":"Flag indicating whether a new quiz was loaded and not yet seen"},{"name":"OnQuizRequested","type":"Func<string, Task>?","required":false,"line":12,"description":"Event invoked when a quiz is requested (subscribers handle loading)"},{"name":"OnQuizUpdated","type":"Func<Task>?","required":false,"line":13,"description":"Event invoked after quiz state changes to notify subscribers"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.Queries.Quiz (QuizDto) - referenced via using directive","unknown (IQuizStateService interface location)"],"patterns":["UI State Service","Observer (event subscription)","In-memory state management"],"domainConcepts":["Quiz"],"keyDetails":"Lightweight, single-instance UI/shared service that mutates in-memory state and signals subscribers via events; 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__ReaderInteractionService.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__ReaderInteractionService.cs.json
new file mode 100644
index 0000000..a63561b
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__ReaderInteractionService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Services/ReaderInteractionService.cs","purpose":"A small UI-shared service that mediates reader-related interactions (node selection, scrolling, highlighting, and text selection) by exposing async events/delegates other components can subscribe to and by providing methods that invoke those events.","classification":{"role":"service","layer":"frontend","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Namespace NexusReader.UI.Shared.Services","Exposes events and async methods to notify subscribers about UI interactions","Implements IReaderInteractionService (integration with UI/shared layer)"]},"className":"ReaderInteractionService","methods":[{"name":"NotifyNodeSelected","line":10,"endLine":13,"signature":"(nodeId: string) -> Task","purpose":"Invokes the OnNodeSelected async event if any subscriber is registered to notify that a node was 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__ReaderNavigationService.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__ReaderNavigationService.cs.json
new file mode 100644
index 0000000..aeadba9
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__ReaderNavigationService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Services/ReaderNavigationService.cs","purpose":"Provides navigation and reader state (current ebook, chapter index, chapter metadata) for the UI; exposes programmatic navigation, metadata updates, and an event-based notification surface for subscribers.","classification":{"role":"service","layer":"frontend","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Uses Microsoft.AspNetCore.Components.NavigationManager (Blazor navigation)","Maintains UI state: CurrentEbookId, CurrentChapterIndex, ChapterTitle","Exposes an event OnNavigationChanged for UI subscribers"]},"className":"ReaderNavigationService","methods":[{"name":"ReaderNavigationService","line":9,"endLine":12,"signature":"(navigationManager: NavigationManager) -> ReaderNavigationService","purpose":"Constructs the service and captures the NavigationManager dependency.","calls":[],"actions":[{"id":"assignment_11","kind":"mapping","label":"Stores NavigationManager","line":11,"detail":"_navigationManager = navigationManager","visibility":"detail-only","confidence":0.7}]},{"name":"GoToChapter","line":21,"endLine":27,"signature":"(index: int) -> Task","purpose":"Validates a chapter index, updates CurrentChapterIndex and notifies subscribers if valid.","calls":[{"targetFile":"self","targetMethod":"NotifyNavigationChangedAsync","callLine":26,"paramSummary":"none"}],"actions":[{"id":"gotochapter_guard-clause_23_0","kind":"guard-clause","label":"Guards early exit or rejection path","line":23,"detail":"if (index < 0 || index >= TotalChapters) return;","conditionSummary":"index < 0 || index >= TotalChapters","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"guard-clause_23","kind":"guard-clause","label":"Rejects out-of-range index","line":23,"detail":"if (index < 0 || index >= TotalChapters) return;","conditionSummary":"index < 0 || index >= TotalChapters","outcomeLabels":["return","continue"],"visibility":"detail-only","confidence":0.7},{"id":"assignment_25","kind":"mapping","label":"Set current chapter","line":25,"detail":"CurrentChapterIndex = index","visibility":"detail-only","confidence":0.7},{"id":"orchestration_26","kind":"mapping","label":"Notify navigation changed","line":26,"detail":"await NotifyNavigationChangedAsync()","visibility":"detail-only","confidence":0.7},{"id":"gotochapter_notification_26_1","kind":"notification","label":"Sends notification","line":26,"detail":"await NotifyNavigationChangedAsync();","visibility":"secondary-visible","confidence":0.83}]},{"name":"GoToNextChapter","line":29,"endLine":35,"signature":"() -> Task","purpose":"Advances to the next chapter if not at the last chapter by delegating to GoToChapter.","calls":[{"targetFile":"self","targetMethod":"GoToChapter","callLine":33,"paramSummary":"CurrentChapterIndex + 1"}],"actions":[{"id":"gotonextchapter_branch_31_0","kind":"branch","label":"Evaluates branch condition","line":31,"detail":"if (CurrentChapterIndex < TotalChapters - 1)","conditionSummary":"CurrentChapterIndex < TotalChapters - 1","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_31","kind":"guard-clause","label":"Only advance if not at last chapter","line":31,"detail":"if (CurrentChapterIndex < TotalChapters - 1) { await GoToChapter(...); }","conditionSummary":"CurrentChapterIndex < TotalChapters - 1","outcomeLabels":["call GoToChapter","no-op"],"visibility":"detail-only","confidence":0.7}]},{"name":"GoToPreviousChapter","line":37,"endLine":43,"signature":"() -> Task","purpose":"Moves to the previous chapter if not at the first chapter by delegating to GoToChapter.","calls":[{"targetFile":"self","targetMethod":"GoToChapter","callLine":41,"paramSummary":"CurrentChapterIndex - 1"}],"actions":[{"id":"gotopreviouschapter_branch_39_0","kind":"branch","label":"Evaluates branch condition","line":39,"detail":"if (CurrentChapterIndex > 0)","conditionSummary":"CurrentChapterIndex > 0","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"guard-clause_39","kind":"guard-clause","label":"Only go back if not at first chapter","line":39,"detail":"if (CurrentChapterIndex > 0) { await GoToChapter(...); }","conditionSummary":"CurrentChapterIndex > 0","outcomeLabels":["call GoToChapter","no-op"],"visibility":"detail-only","confidence":0.7}]},{"name":"UpdateMetadataAsync","line":45,"endLine":56,"signature":"(currentIndex: int, totalChapters: int, title: string) -> Task","purpose":"Updates cached chapter metadata (index, total, title) and notifies subscribers only if any value changed.","calls":[{"targetFile":"self","targetMethod":"NotifyNavigationChangedAsync","callLine":54,"paramSummary":"none"}],"actions":[{"id":"local-variable_47","kind":"mapping","label":"Change detection flag","line":47,"detail":"bool changed = false","visibility":"detail-only","confidence":0.7},{"id":"updatemetadataasync_branch_48_0","kind":"branch","label":"Evaluates branch condition","line":48,"detail":"if (CurrentChapterIndex != currentIndex) { CurrentChapterIndex = currentIndex; 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__SyncService.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__SyncService.cs.json
new file mode 100644
index 0000000..0ab048c
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__SyncService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Services/SyncService.cs","purpose":"Client-side service that manages SignalR-based sync of reading progress: it retrieves auth token, establishes a HubConnection, debounces progress updates and sends them to the server, and exposes an event for incoming progress notifications.","classification":{"role":"service","layer":"frontend","confidence":0.85,"evidence":["Service naming pattern","Application/service path heuristic","Implements ISyncService and manages SignalR HubConnection (client-side realtime).","Depends on INativeStorageService and HttpClient; placed under UI.Shared/Services."]},"className":"SyncService","methods":[{"name":"SyncService","line":20,"endLine":30,"signature":"(httpClient: HttpClient, storageService: INativeStorageService, platformService: IPlatformService, logger: ILogger<SyncService>) -> SyncService","purpose":"Constructor: injects and stores dependencies.","calls":[],"actions":[{"id":"assign_26","kind":"mapping","label":"Store 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__ThemeService.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__ThemeService.cs.json
new file mode 100644
index 0000000..fb5031b
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__ThemeService.cs.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__WebStorageService.cs.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__WebStorageService.cs.json
new file mode 100644
index 0000000..3e05bee
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared__Services__WebStorageService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/Services/WebStorageService.cs","purpose":"A UI-shared service that implements INativeStorageService by using Blazor JS interop to read/write browser localStorage, returning FluentResults for success/failure.","classification":{"role":"service","layer":"frontend","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Implements INativeStorageService (NexusReader.Application.Abstractions.Services)","Uses Microsoft.JSInterop IJSRuntime to call localStorage (browser JS interop)","Located under UI.Shared.Services namespace"]},"className":"WebStorageService","methods":[{"name":"WebStorageService","line":11,"endLine":14,"signature":"(jsRuntime: IJSRuntime) -> WebStorageService","purpose":"Constructor: captures IJSRuntime for later JS interop calls.","calls":[],"actions":[{"id":"assignment_13","kind":"mapping","label":"store injected IJSRuntime","line":13,"detail":"_jsRuntime = jsRuntime","visibility":"detail-only","confidence":0.7}]},{"name":"SaveStringAsync","line":16,"endLine":27,"signature":"(key: string, value: string) -> Task<Result>","purpose":"Saves a string value into browser localStorage via JS interop and returns success/fail Result.","calls":[],"actions":[{"id":"try-catch_18","kind":"mapping","label":"wraps JS call in try/catch and maps exceptions to Result.Fail","line":18,"detail":"try { await InvokeVoidAsync ...; 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.UI.Shared___Imports.razor.json b/src/.documentation/cache/summaries/NexusReader.UI.Shared___Imports.razor.json
new file mode 100644
index 0000000..876e868
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.UI.Shared___Imports.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.UI.Shared/_Imports.razor","purpose":"Razor imports file that centralizes using directives for the NexusReader UI shared component library so individual .razor files in this folder and subfolders can omit repetitive namespace imports.","classification":{"role":"ui-component","layer":"frontend","confidence":0.85,"evidence":["Frontend path heuristic","Contains many @using directives for Blazor components and shared UI namespaces (lines 1–17).","References application DTOs/queries and authorization/logging namespaces (lines 18–21)."]},"className":"","methods":[],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["Microsoft.AspNetCore.Components","Microsoft.JSInterop","Microsoft.Extensions.Logging","NexusReader.UI.Shared","NexusReader.UI.Shared.Layout","NexusReader.UI.Shared.Components","NexusReader.UI.Shared.Components.Atoms","NexusReader.UI.Shared.Components.Molecules","NexusReader.UI.Shared.Components.Organisms","NexusReader.UI.Shared.Services","NexusReader.Application.Abstractions.Services","NexusReader.Application.DTOs.User","NexusReader.Application.Queries.Reader"],"patterns":["Shared UI imports / namespace aggregation"],"domainConcepts":["User","Reader","Authentication","Authorization","Logging"],"keyDetails":"A non-executable file that only declares common @using directives for the Razor compilation scope; it influences compile-time resolution and developer ergonomics but contains no runtime logic. Changes here affect all .razor files in this folder and its subtree.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Web.Client__Handlers__AuthenticationHeaderHandler.cs.json b/src/.documentation/cache/summaries/NexusReader.Web.Client__Handlers__AuthenticationHeaderHandler.cs.json
new file mode 100644
index 0000000..ab9ae1f
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Web.Client__Handlers__AuthenticationHeaderHandler.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs","purpose":"Delegating HTTP handler used in the Blazor/WebAssembly client to attach JWT Authorization headers to trusted requests and to transparently refresh expired tokens in a thread-safe way.","classification":{"role":"handler","layer":"frontend","confidence":0.9,"evidence":["Integration/client pattern","Application/service path heuristic","Class derives from DelegatingHandler (line 14)","Uses NavigationManager and BrowserRequestCredentials (lines 30, 38, 137)","Calls INativeStorageService and IIdentityService for token reads/refresh (lines 47, 78)"]},"className":"AuthenticationHeaderHandler","methods":[{"name":"AuthenticationHeaderHandler","line":21,"endLine":25,"signature":"(INativeStorageService storageService, IServiceProvider serviceProvider) -> AuthenticationHeaderHandler","purpose":"Constructor that stores injected INativeStorageService and IServiceProvider 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Web.Client__NexusReader.Web.Client.csproj.json b/src/.documentation/cache/summaries/NexusReader.Web.Client__NexusReader.Web.Client.csproj.json
new file mode 100644
index 0000000..1b0d25b
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Web.Client__NexusReader.Web.Client.csproj.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Web.Client/NexusReader.Web.Client.csproj","purpose":"Project file for the Blazor WebAssembly client project: declares SDK, target framework, build properties, NuGet package dependencies, and project references that link the client to application and shared UI projects.","classification":{"role":"config","layer":"frontend","confidence":0.9,"evidence":["Integration/client pattern","Top-level Sdk is Microsoft.NET.Sdk.BlazorWebAssembly (line 1)","TargetFramework net10.0 and Blazor-specific properties defined (lines 3-10)","PackageReference entries for MediatR, Microsoft.AspNetCore.Components.WebAssembly, Microsoft.Extensions.Http (lines 12-17)","ProjectReference to NexusReader.Application and NexusReader.UI.Shared (lines 19-22)"]},"className":"","methods":[],"types":[],"serviceRegistrations":[],"startupActions":[{"name":"project-configuration","line":1,"kind":"unknown","targetCalls":[{"targetFile":"nuget:MediatR","targetMethod":"PackageReference","callLine":13,"paramSummary":"Adds MediatR package to the client"},{"targetFile":"nuget:Microsoft.AspNetCore.Components.WebAssembly","targetMethod":"PackageReference","callLine":14,"paramSummary":"Adds Blazor WebAssembly runtime package"},{"targetFile":"nuget:Microsoft.Extensions.Http","targetMethod":"PackageReference","callLine":15,"paramSummary":"Adds HTTP client extensions for DI"},{"targetFile":"nuget:VersOne.Epub","targetMethod":"PackageReference","callLine":16,"paramSummary":"Adds EPUB handling library"},{"targetFile":"../NexusReader.Application/NexusReader.Application.csproj","targetMethod":"ProjectReference","callLine":20,"paramSummary":"References application project for shared logic"},{"targetFile":"../NexusReader.UI.Shared/NexusReader.UI.Shared.csproj","targetMethod":"ProjectReference","callLine":21,"paramSummary":"References shared UI project"}]}],"dependencies":["MediatR (NuGet)","Microsoft.AspNetCore.Components.WebAssembly (NuGet)","Microsoft.Extensions.Http (NuGet)","VersOne.Epub (NuGet)","../NexusReader.Application/NexusReader.Application.csproj","../NexusReader.UI.Shared/NexusReader.UI.Shared.csproj"],"patterns":["Blazor WebAssembly client","ProjectReference-based multi-project solution"],"domainConcepts":["Client (WASM)","Shared UI","Application layer integration"],"keyDetails":"SDK: Microsoft.NET.Sdk.BlazorWebAssembly; TargetFramework: net10.0; Blazor-specific properties set (NoDefaultLaunchSettingsFile, StaticWebAssetProjectMode, BlazorDisableThrowNavigationException); packs: MediatR, Blazor WASM runtime, Http extensions, EPUB library; references Application and UI.Shared projects.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"startup","label":"project-configuration","line":1,"summary":"unknown startup action","confidence":0.78,"evidencePaths":["NexusReader.Web.Client/NexusReader.Web.Client.csproj","nuget:MediatR","nuget:Microsoft.AspNetCore.Components.WebAssembly","nuget:Microsoft.Extensions.Http"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Web.Client__Program.cs.json b/src/.documentation/cache/summaries/NexusReader.Web.Client__Program.cs.json
new file mode 100644
index 0000000..1ba935a
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Web.Client__Program.cs.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Web.Client__Services__WasmEpubService.cs.json b/src/.documentation/cache/summaries/NexusReader.Web.Client__Services__WasmEpubService.cs.json
new file mode 100644
index 0000000..6e0f1fd
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Web.Client__Services__WasmEpubService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Web.Client/Services/WasmEpubService.cs","purpose":"Client-side WASM EPUB reader and local EPUB metadata extractor used by the Web.Client project: performs HTTP retrieval of chapter content and local EPUB metadata extraction in the browser runtime.","classification":{"role":"service","layer":"frontend","confidence":0.8,"evidence":["Service naming pattern","Application/service path heuristic","namespace NexusReader.Web.Client.Services","uses HttpClient for /api/epub requests and local EPUB parsing (VersOne.Epub) — client-side responsibilities","file sits in Web.Client/Services and implements application abstractions IEpubReader/IEpubMetadataExtractor"]},"className":"WasmEpubReader","methods":[{"name":"WasmEpubReader","line":12,"endLine":15,"signature":"(httpClient: HttpClient) -> WasmEpubReader","purpose":"Constructs the WASM EPUB reader and stores an HttpClient instance for remote chapter retrieval.","calls":[],"actions":[{"id":"field-assignment_14","kind":"mapping","label":"Store HttpClient","line":14,"detail":"_httpClient = httpClient","visibility":"detail-only","confidence":0.7}]},{"name":"GetEpubContentAsync","line":17,"endLine":39,"signature":"(ebookId: Guid, chapterIndex: int, userId: string? = null, cancellationToken: CancellationToken = default) -> Task<Result<ReaderPageViewModel>>","purpose":"Fetches a chapter's reader view model from the server API and returns a FluentResults.Result wrapping the deserialized ReaderPageViewModel or an error.","calls":[],"actions":[{"id":"external-http-call_25","kind":"mapping","label":"GET /api/epub/{ebookId}/{chapterIndex}","line":25,"detail":"await _httpClient.GetAsync($\"/api/epub/{ebookId}/{chapterIndex}\", cancellationToken)","visibility":"detail-only","confidence":0.7},{"id":"getepubcontentasync_branch_26_0","kind":"branch","label":"Evaluates branch condition","line":26,"detail":"if (response.IsSuccessStatusCode)","conditionSummary":"response.IsSuccessStatusCode","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"branch_26","kind":"branch","label":"Handle success vs error HTTP status","line":26,"detail":"if (response.IsSuccessStatusCode) { ReadFromJsonAsync... } else { ReadAsStringAsync and fail }","conditionSummary":"response.IsSuccessStatusCode","outcomeLabels":["success -> deserialize JSON to ReaderPageViewModel","failure -> read error body and return failure result"],"visibility":"detail-only","confidence":0.7},{"id":"deserialize_28","kind":"mapping","label":"Deserialize response JSON to ReaderPageViewModel","line":28,"detail":"await response.Content.ReadFromJsonAsync<ReaderPageViewModel>(cancellationToken: cancellationToken)","visibility":"detail-only","confidence":0.7},{"id":"guard-clause_29","kind":"guard-clause","label":"Null check after deserialization","line":29,"detail":"return viewModel != null ? 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Web.Client__Services__WasmKnowledgeService.cs.json b/src/.documentation/cache/summaries/NexusReader.Web.Client__Services__WasmKnowledgeService.cs.json
new file mode 100644
index 0000000..e18bddf
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Web.Client__Services__WasmKnowledgeService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Web.Client/Services/WasmKnowledgeService.cs","purpose":"WASM-side implementation of IKnowledgeService that forwards knowledge/AI related requests from the Blazor WebAssembly client to server HTTP endpoints and returns typed Result<T> responses.","classification":{"role":"integration-client","layer":"frontend","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Namespace: NexusReader.Web.Client.Services","Holds an HttpClient and calls /api/knowledge endpoints","Implements IKnowledgeService from application abstractions"]},"className":"WasmKnowledgeService","methods":[{"name":"GetKnowledgeAsync","line":17,"endLine":20,"signature":"(string text, string tenantId, Guid? ebookId = null, CancellationToken cancellationToken = default) -> Task<Result<KnowledgePacket>>","purpose":"Requests a knowledge packet for given text by delegating to the shared CallKnowledgeApiAsync helper with the /api/knowledge endpoint.","calls":[{"targetFile":"self","targetMethod":"CallKnowledgeApiAsync","callLine":19,"paramSummary":"endpoint:'/api/knowledge', text, ebookId, cancellationToken"}],"actions":[{"id":"delegation_19","kind":"mapping","label":"Delegates to CallKnowledgeApiAsync","line":19,"visibility":"detail-only","confidence":0.7},{"id":"getknowledgeasync_return_19_0","kind":"return","label":"Returns result","line":19,"detail":"return await CallKnowledgeApiAsync(\"/api/knowledge\", text, ebookId, cancellationToken);","visibility":"detail-only","confidence":0.7}]},{"name":"GetGraphDataAsync","line":22,"endLine":25,"signature":"(string text, string tenantId, Guid? 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Web.Client__Services__WebPlatformService.cs.json b/src/.documentation/cache/summaries/NexusReader.Web.Client__Services__WebPlatformService.cs.json
new file mode 100644
index 0000000..7c18ca7
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Web.Client__Services__WebPlatformService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Web.Client/Services/WebPlatformService.cs","purpose":"Web-specific implementation of IPlatformService for the Blazor/Browser client: exposes vibration helpers and a device-context provider using JS interop.","classification":{"role":"service","layer":"frontend","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Namespace NexusReader.Web.Client.Services indicates client-side service","Implements IPlatformService from Application.Abstractions","Uses IJSRuntime to call browser APIs (navigator.vibrate)"]},"className":"WebPlatformService","methods":[{"name":"VibrateSuccessAsync","line":16,"endLine":16,"signature":"() -> Task<Result>","purpose":"Convenience wrapper that triggers a short (success) vibration.","calls":[{"targetFile":"self","targetMethod":"VibrateAsync","callLine":16,"paramSummary":"milliseconds = 100"}],"actions":[{"id":"orchestration_16","kind":"mapping","label":"Delegates to 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(int)"}],"actions":[{"id":"try-catch_21","kind":"mapping","label":"Wraps external call in try/catch","line":21,"detail":"Catches Exception and returns Result.Fail with message","conditionSummary":"runtime exceptions from JS interop","outcomeLabels":["Result.Ok() on success","Result.Fail(ex.Message) on exception"],"visibility":"detail-only","confidence":0.7},{"id":"external-call_23","kind":"external-call","label":"Calls browser API","line":23,"detail":"await _jsRuntime.InvokeVoidAsync('navigator.vibrate', milliseconds)","visibility":"detail-only","confidence":0.7},{"id":"return_24","kind":"return","label":"Return success","line":24,"detail":"return Result.Ok() when JS call succeeds","visibility":"detail-only","confidence":0.7},{"id":"vibrateasync_return_24_0","kind":"return","label":"Returns result","line":24,"detail":"return Result.Ok();","visibility":"detail-only","confidence":0.7},{"id":"return_28","kind":"return","label":"Return failure","line":28,"detail":"return Result.Fail(ex.Message) when exception thrown","visibility":"detail-only","confidence":0.7},{"id":"vibrateasync_return_28_1","kind":"return","label":"Returns result","line":28,"detail":"return Result.Fail(ex.Message);","visibility":"detail-only","confidence":0.7}]},{"name":"GetDeviceContext","line":32,"endLine":40,"signature":"() -> Result<DeviceContext>","purpose":"Builds and returns a DeviceContext describing the web/browser environment.","calls":[{"targetFile":"unknown","targetMethod":"DeviceContext..ctor","callLine":34,"paramSummary":"(\"Browser\",\"Web\", DeviceType.Desktop, DisplayOrientation.Unknown)"}],"actions":[{"id":"return_34","kind":"return","label":"Return device context wrapped in Result.Ok","line":34,"detail":"Result.Ok(new DeviceContext(...)) with defaults for web","visibility":"detail-only","confidence":0.7},{"id":"getdevicecontext_return_34_0","kind":"return","label":"Returns result","line":34,"detail":"return Result.Ok(new 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Web__Components__App.razor.json b/src/.documentation/cache/summaries/NexusReader.Web__Components__App.razor.json
new file mode 100644
index 0000000..a450e0b
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Web__Components__App.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Web/Components/App.razor","purpose":"Root Blazor application host markup for the web client: includes shared styles/components, boots the Blazor runtime, renders top-level route component, and contains client-side preloader hide logic.","classification":{"role":"program-entry","layer":"frontend","confidence":0.8,"evidence":["Frontend path heuristic","Includes <base href=\"/\"/>, top-level route component and HeadOutlet","Loads Blazor runtime script _framework/blazor.web.js","Contains client-side startup IIFE to hide preloader and fallback timer"]},"className":"","methods":[{"name":"hidePreloader","line":26,"endLine":33,"signature":"() -> void","purpose":"Hide/remove the #app-preloader element by adding a 'loaded' class and then setting display none after a short transition.","calls":[],"actions":[{"id":"guard-clause_27","kind":"guard-clause","label":"Checks preloader element exists","line":27,"detail":"Only proceeds to add class and schedule removal when element found","conditionSummary":"if (preloader)","outcomeLabels":["continue (element exists)","noop (element missing)"],"visibility":"detail-only","confidence":0.7},{"id":"hidepreloader_branch_28_0","kind":"branch","label":"Evaluates branch condition","line":28,"detail":"if (preloader) {","conditionSummary":"preloader","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"dom-manipulation_29","kind":"mapping","label":"Adds 'loaded' class to preloader","line":29,"detail":"preloader.classList.add('loaded')","visibility":"detail-only","confidence":0.7},{"id":"timer_31","kind":"mapping","label":"Schedules DOM removal after transition","line":31,"detail":"setTimeout(() => preloader.style.display = 'none', 1000)","visibility":"detail-only","confidence":0.7}]},{"name":"anonymous startup IIFE","line":25,"endLine":43,"signature":"IIFE() -> void","purpose":"Client startup orchestration: runs on script load, hides preloader immediately if document is already loaded, otherwise attaches a load event listener; 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Web__Components__Error.razor.json b/src/.documentation/cache/summaries/NexusReader.Web__Components__Error.razor.json
new file mode 100644
index 0000000..213d29e
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Web__Components__Error.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Web/Components/Error.razor","purpose":"Blazor UI component that displays a generic error message and, when available, exposes technical exception details for diagnostics.","classification":{"role":"ui-component","layer":"frontend","confidence":0.8,"evidence":["Frontend path heuristic","File is a .razor component (markup + @code block)","Defines a [Parameter] Exception property and overrides OnInitialized","Renders HTML error text and conditional technical details"]},"className":"Error","methods":[{"name":"Exception (property)","line":2,"endLine":3,"signature":"(get; set;) -> Exception?","purpose":"Component parameter that accepts an Exception instance to display diagnostic details.","calls":[],"actions":[{"id":"parameter_2","kind":"mapping","label":"Component input","line":2,"detail":"[Parameter] public Exception? Exception { get; set; }","visibility":"detail-only","confidence":0.7},{"id":"state-read_13","kind":"mapping","label":"Used by render logic","line":13,"detail":"Checked in markup: if (Exception != null) { ... }","visibility":"detail-only","confidence":0.7}]},{"name":"OnInitialized","line":5,"endLine":8,"signature":"() -> void (override)","purpose":"Blazor lifecycle override; placeholder for initialization or logging when the component is initialized.","calls":[],"actions":[{"id":"lifecycle_5","kind":"mapping","label":"Component initialization","line":5,"detail":"protected override void OnInitialized() { /* placeholder - could log the exception */ }","visibility":"detail-only","confidence":0.7},{"id":"comment_7","kind":"mapping","label":"Logging suggestion","line":7,"detail":"Comment suggests logging the exception using a logging service","visibility":"detail-only","confidence":0.7}]},{"name":"Render (markup)","line":11,"endLine":19,"signature":"() -> RenderFragment","purpose":"Renders the error UI: static message plus optional expandable technical details when Exception is provided.","calls":[],"actions":[{"id":"render-static_11","kind":"mapping","label":"Render error heading and guidance","line":11,"detail":"Outputs <h3>An unexpected error occurred.</h3> and a guidance paragraph","visibility":"detail-only","confidence":0.7},{"id":"branch_13","kind":"branch","label":"Conditional technical details","line":13,"detail":"If Exception is not null, renders <details> with Exception.ToString()","conditionSummary":"Exception != null","outcomeLabels":["render details","skip details"],"visibility":"detail-only","confidence":0.7},{"id":"render_markup_branch_13_0","kind":"branch","label":"Evaluates branch condition","line":13,"detail":"@if (Exception != null)","conditionSummary":"Exception != null","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"render-dynamic_17","kind":"mapping","label":"Display exception text","line":17,"detail":"Renders @Exception.ToString() inside a <pre> for diagnostic info","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Component"],"domainConcepts":[],"keyDetails":"Simple Blazor error component exposing an Exception parameter; intended to show user-facing message and optional technical details. No external calls or persistence.","orchestrationMethods":[{"name":"Render (markup)","line":11,"confidence":0.69,"reason":"Contains 2 architectural actions relevant to business execution.","actionKinds":["mapping","branch"],"evidencePaths":["NexusReader.Web/Components/Error.razor"]}],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"orchestration-method","label":"Render (markup)","line":11,"summary":"Contains 2 architectural actions relevant to business execution.","confidence":0.69,"evidencePaths":["NexusReader.Web/Components/Error.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Web__Components__Pages__Error.razor.json b/src/.documentation/cache/summaries/NexusReader.Web__Components__Pages__Error.razor.json
new file mode 100644
index 0000000..b6a0949
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Web__Components__Pages__Error.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Web/Components/Pages/Error.razor","purpose":"A Blazor Razor page that displays a generic error screen and exposes the request identifier (from Activity or HttpContext) for troubleshooting.","classification":{"role":"ui-page","layer":"frontend","confidence":0.9,"evidence":["Frontend path heuristic","Contains @page \"/Error\" directive (line 1)","Razor component markup and lifecycle override OnInitialized (lines 27-36)","Uses CascadingParameter HttpContext (line 28)"]},"className":"Error","methods":[{"name":"OnInitialized","line":34,"endLine":35,"signature":"() -> void","purpose":"Component lifecycle method that resolves the current RequestId from Activity or HttpContext when the component is initialized.","calls":[],"actions":[{"id":"lifecycle_34","kind":"mapping","label":"Initialization hook","line":34,"detail":"Overrides Blazor Component.OnInitialized","visibility":"detail-only","confidence":0.7},{"id":"fallback_35","kind":"fallback","label":"Prefer Activity.Current?.Id, fall back to HttpContext?.TraceIdentifier","line":35,"conditionSummary":"Activity.Current?.Id present ? use it : use HttpContext?.TraceIdentifier","outcomeLabels":["useActivityId","useHttpContextTraceId"],"visibility":"detail-only","confidence":0.7},{"id":"assignment_35","kind":"mapping","label":"Set RequestId from Activity or HttpContext","line":35,"detail":"RequestId = Activity.Current?.Id ?? HttpContext?.TraceIdentifier","visibility":"detail-only","confidence":0.7}]},{"name":"ShowRequestId (computed property)","line":32,"endLine":32,"signature":"() -> bool","purpose":"Returns true when RequestId is non-empty so the UI can conditionally render the RequestId block.","calls":[],"actions":[{"id":"guard-clause_32","kind":"guard-clause","label":"Checks RequestId presence","line":32,"detail":"Computed property used in Razor @if to decide rendering","conditionSummary":"!string.IsNullOrEmpty(RequestId)","outcomeLabels":["renderRequestId","hideRequestId"],"visibility":"detail-only","confidence":0.7}]},{"name":"HttpContext (CascadingParameter property)","line":28,"endLine":29,"signature":"() -> HttpContext?","purpose":"Receives the current HttpContext via cascading parameter for trace identifier access.","calls":[],"actions":[{"id":"parameter-binding_28","kind":"mapping","label":"CascadingParameter binding","line":28,"detail":"[CascadingParameter] private HttpContext? HttpContext { get; set; }","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[{"name":"route registration via @page","line":1,"kind":"unknown","targetCalls":[]}],"dependencies":["System.Diagnostics (Activity.Current usage)"],"patterns":["Blazor Component","Razor Page"],"domainConcepts":[],"keyDetails":"Renders an error page and exposes a Request ID resolved from Activity.Current or the Cascading HttpContext.TraceIdentifier; intended for troubleshooting in non-production contexts.","orchestrationMethods":[{"name":"OnInitialized","line":34,"confidence":0.57,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["mapping","fallback"],"evidencePaths":["NexusReader.Web/Components/Pages/Error.razor"]}],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"orchestration-method","label":"OnInitialized","line":34,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.57,"evidencePaths":["NexusReader.Web/Components/Pages/Error.razor"]},{"kind":"startup","label":"route registration via @page","line":1,"summary":"unknown startup action","confidence":0.78,"evidencePaths":["NexusReader.Web/Components/Pages/Error.razor"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Web__Components___Imports.razor.json b/src/.documentation/cache/summaries/NexusReader.Web__Components___Imports.razor.json
new file mode 100644
index 0000000..4ea81dd
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Web__Components___Imports.razor.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Web/Components/_Imports.razor","purpose":"Razor global imports file that centralizes using directives/namespaces for Blazor components in the Web project so components can reference shared UI namespaces without repeating them.","classification":{"role":"ui-component","layer":"frontend","confidence":0.9,"evidence":["Frontend path heuristic","Contains Razor @using directives for Microsoft.AspNetCore.Components and project UI namespaces","Named _Imports.razor — standard place for Blazor component imports"]},"className":"","methods":[],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["Microsoft.AspNetCore.Components","Microsoft.AspNetCore.Components.Web","Microsoft.AspNetCore.Components.Forms","Microsoft.AspNetCore.Components.Routing","Microsoft.AspNetCore.Components.Web.Virtualization","Microsoft.JSInterop","System.Net.Http","System.Net.Http.Json","NexusReader.Web","NexusReader.UI.Shared","NexusReader.UI.Shared.Layout","NexusReader.UI.Shared.Components.Atoms","NexusReader.UI.Shared.Components.Molecules","NexusReader.UI.Shared.Components.Organisms"],"patterns":[],"domainConcepts":["Shared UI imports","Blazor component composition"],"keyDetails":"No executable methods or types; this file only defines project-wide using directives for Razor components (lines 1–15). It influences compile-time namespace resolution and developer experience but contains no runtime orchestration, branching, or external calls.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Web__NexusReader.Web.csproj.json b/src/.documentation/cache/summaries/NexusReader.Web__NexusReader.Web.csproj.json
new file mode 100644
index 0000000..347e72f
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Web__NexusReader.Web.csproj.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Web/NexusReader.Web.csproj","purpose":"MSBuild project file for the NexusReader.Web web host: configures SDK, target framework, project and package dependencies, and a few web-specific build settings used to compose the overall solution at build/run time.","classification":{"role":"composition-root","layer":"infrastructure","confidence":0.8,"evidence":["Project Sdk=\"Microsoft.NET.Sdk.Web\" (line 1) — indicates a web host project","TargetFramework net10.0 (line 4) — runtime target for the host","ProjectReference entries to Application, Infrastructure, UI.Shared and Web.Client (lines 20, 27-29) — composes solution layers","PackageReference entries for Blazor server, authentication, Hangfire, EF tooling (lines 11, 14-17, 21, 22) — runtime cross-cutting features configured here"]},"className":"","methods":[],"types":[],"serviceRegistrations":[{"line":20,"serviceType":"NexusReader.Web.Client (project)","implementationType":"..\\NexusReader.Web.Client\\NexusReader.Web.Client.csproj","lifetime":"unknown","factorySummary":"References the Blazor/WebAssembly client project so it is published/served with the host"},{"line":27,"serviceType":"NexusReader.Application (project)","implementationType":"..\\NexusReader.Application\\NexusReader.Application.csproj","lifetime":"unknown","factorySummary":"References application layer project for business logic"},{"line":28,"serviceType":"NexusReader.Infrastructure (project)","implementationType":"..\\NexusReader.Infrastructure\\NexusReader.Infrastructure.csproj","lifetime":"unknown","factorySummary":"References infrastructure layer (data, external integrations)"},{"line":29,"serviceType":"NexusReader.UI.Shared (project)","implementationType":"..\\NexusReader.UI.Shared\\NexusReader.UI.Shared.csproj","lifetime":"unknown","factorySummary":"References shared UI components used by client and host"}],"startupActions":[{"name":"setTargetFrameworkAndBuildSettings","line":4,"kind":"unknown","targetCalls":[]},{"name":"blazorAndHostFlags","line":7,"kind":"unknown","targetCalls":[]},{"name":"packageDependencies","line":11,"kind":"unknown","targetCalls":[]}],"dependencies":["..\\NexusReader.Web.Client\\NexusReader.Web.Client.csproj","..\\NexusReader.Application\\NexusReader.Application.csproj","..\\NexusReader.Infrastructure\\NexusReader.Infrastructure.csproj","..\\NexusReader.UI.Shared\\NexusReader.UI.Shared.csproj"],"patterns":["Modular multi-project composition","Clean/Clean-ish layered architecture (Web host + Application + Infrastructure + UI.Shared + Client)"],"domainConcepts":["Authentication/Identity","Real-time/background jobs (Hangfire)","Payments (Stripe)","E-book processing (VersOne.Epub)","Blazor WebAssembly hosting (server + client)","Secrets/config management (UserSecrets)"],"keyDetails":"This project is the web host composition point: it references the Blazor WASM client for hosting, pulls in Application/Infrastructure/UI.Shared projects, and includes packages for auth, EF tooling, Hangfire, Stripe and EPUB processing. Target is net10.0 and Web SDK is used; UserSecretsId is configured for secret management.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"startup","label":"setTargetFrameworkAndBuildSettings","line":4,"summary":"unknown startup action","confidence":0.78,"evidencePaths":["NexusReader.Web/NexusReader.Web.csproj"]},{"kind":"startup","label":"blazorAndHostFlags","line":7,"summary":"unknown startup action","confidence":0.78,"evidencePaths":["NexusReader.Web/NexusReader.Web.csproj"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Web__Program.cs.json b/src/.documentation/cache/summaries/NexusReader.Web__Program.cs.json
new file mode 100644
index 0000000..8239e9c
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Web__Program.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Web/Program.cs","purpose":"Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.","classification":{"role":"startup","layer":"application","confidence":0.95,"evidence":["Program/main filename match","Creates WebApplication builder and calls builder.Services.* (lines 31-84, 96-159)","Builds app, configures middleware and Maps endpoints, then app.Run() (lines 161-164, 225-247, 559-564)","Performs DB migration and seeding at startup with retry logic (lines 175-223)"]},"className":"","methods":[{"name":"Program (top-level)","line":29,"endLine":564,"signature":"(args) -> Task","purpose":"Top-level program: build host, register services and middleware, map routes/endpoints, run the app.","calls":[{"targetFile":"NexusReader.Application/DependencyInjection.cs","targetMethod":"AddApplication","callLine":78,"paramSummary":"IServiceCollection"},{"targetFile":"NexusReader.Infrastructure/DependencyInjection.cs","targetMethod":"AddInfrastructure","callLine":79,"paramSummary":"IServiceCollection, IConfiguration"},{"targetFile":"NexusReader.Data.Persistence/DbInitializer.cs","targetMethod":"DbInitializer.SeedAsync","callLine":196,"paramSummary":"IServiceProvider"},{"targetFile":"NexusReader.Infrastructure/RealTime/SyncHub.cs","targetMethod":"SyncHub","callLine":247,"paramSummary":"Hub mapping for realtime sync"},{"targetFile":"NexusReader.Application.Abstractions.Persistence/IEpubReader.cs","targetMethod":"GetEpubContentAsync","callLine":253,"paramSummary":"ebookId, index, userId"},{"targetFile":"NexusReader.Application.Abstractions.Services/IKnowledgeService.cs","targetMethod":"GetKnowledgeAsync / GetGraphDataAsync / GetSummaryAndQuizAsync / GetKnowledgeMapAsync / VerifyGroundednessAsync / SearchLibrarySemanticallyAsync / AskQuestionAsync / ClearCacheAsync","callLine":268,"paramSummary":"text/query, tenantId, ebookId/limit as applicable"}],"actions":[{"id":"service-registration_33","kind":"mapping","label":"Registers many scoped services and HTTP client","line":33,"detail":"builder.Services.AddRazorComponents(), AddServerSideBlazor(), AddSignalR(), AddScoped<...>(), AddHttpClient(\"NexusAPI\")","visibility":"detail-only","confidence":0.7},{"id":"program_top_level_branch_62_0","kind":"branch","label":"Evaluates branch condition","line":62,"detail":"if (!string.IsNullOrEmpty(apiBaseUrl))","conditionSummary":"!string.IsNullOrEmpty(apiBaseUrl)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"program_top_level_fallback_66_1","kind":"fallback","label":"Falls back to alternate path","line":66,"detail":"else","outcomeLabels":["fallback"],"visibility":"primary-visible","confidence":0.84},{"id":"authorization-policy_86","kind":"mapping","label":"Adds policies including 'ProUser' and 'HasAvailableTokens'","line":86,"detail":"AddPolicy and AddRequirements for token limits and subscription plan","visibility":"detail-only","confidence":0.7},{"id":"auth-config_96","kind":"mapping","label":"Configures authentication and Identity endpoints","line":96,"detail":"AddAuthentication().AddGoogle(); 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Ensure AddInfrastructure() is called in Program.cs.\");","visibility":"secondary-visible","confidence":0.88},{"id":"program_top_level_loop_186_12","kind":"loop","label":"Repeats work over a collection or condition","line":186,"detail":"for (int i = 0; i < maxRetries; i++)","conditionSummary":"int i = 0; i < maxRetries; i++","loopTargetLine":186,"loopExitSummary":"Leaves the loop when the condition no longer holds.","visibility":"primary-visible","confidence":0.86},{"id":"program_top_level_branch_190_14","kind":"branch","label":"Evaluates branch condition","line":190,"detail":"if (logger.IsEnabled(LogLevel.Information))","conditionSummary":"logger.IsEnabled(LogLevel.Information)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"program_top_level_log_190_13","kind":"log","label":"Logs runtime state","line":190,"detail":"if (logger.IsEnabled(LogLevel.Information))","visibility":"detail-only","confidence":0.92},{"id":"program_top_level_log_192_15","kind":"log","label":"Logs runtime state","line":192,"detail":"logger.LogInformation(\"Próba połączenia z bazą danych (próba {Attempt}/{MaxRetries})...\", i + 1, maxRetries);","visibility":"detail-only","confidence":0.92},{"id":"program_top_level_branch_198_17","kind":"branch","label":"Evaluates branch condition","line":198,"detail":"if (logger.IsEnabled(LogLevel.Information))","conditionSummary":"logger.IsEnabled(LogLevel.Information)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"program_top_level_log_198_16","kind":"log","label":"Logs runtime state","line":198,"detail":"if (logger.IsEnabled(LogLevel.Information))","visibility":"detail-only","confidence":0.92},{"id":"program_top_level_log_200_18","kind":"log","label":"Logs runtime state","line":200,"detail":"logger.LogInformation(\"Baza danych zainicjowana pomyślnie.\");","visibility":"detail-only","confidence":0.92},{"id":"program_top_level_branch_206_20","kind":"branch","label":"Evaluates branch condition","line":206,"detail":"if (logger.IsEnabled(LogLevel.Warning))","conditionSummary":"logger.IsEnabled(LogLevel.Warning)","outcomeLabels":["true","false"],"visibility":"secondary-visible","confidence":0.78},{"id":"program_top_level_log_206_19","kind":"log","label":"Logs runtime state","line":206,"detail":"if (logger.IsEnabled(LogLevel.Warning))","visibility":"secondary-visible","confidence":0.92},{"id":"program_top_level_log_208_21","kind":"log","label":"Logs runtime state","line":208,"detail":"logger.LogWarning(ex, \"Błąd połączenia z bazą danych. 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Results.Ok(result.Value","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"program_top_level_return_278_42","kind":"return","label":"Returns result","line":278,"detail":"return Results.BadRequest(result.Errors.Count > 0 ? result.Errors[0].Message : \"Unknown server error\");","visibility":"detail-only","confidence":0.7},{"id":"program_top_level_mapping_281_43","kind":"mapping","label":"Maps data or transforms shape","line":281,"detail":"knowledgeApi.MapPost(\"/summary\", async (KnowledgeRequest request, ClaimsPrincipal user, IKnowledgeService knowledgeService) =>","visibility":"detail-only","confidence":0.74},{"id":"program_top_level_repository-read_283_44","kind":"repository-read","label":"Reads repository or persistence state","line":283,"detail":"var tenantId = user.FindFirstValue(\"TenantId\") ?? 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result.Errors[0].Message : \"Unknown server error\");","visibility":"detail-only","confidence":0.7},{"id":"program_top_level_mapping_305_55","kind":"mapping","label":"Maps data or transforms shape","line":305,"detail":"knowledgeApi.MapPost(\"/search\", async (SemanticSearchRequest request, ClaimsPrincipal user, IKnowledgeService knowledgeService) =>","visibility":"detail-only","confidence":0.74},{"id":"program_top_level_repository-read_307_56","kind":"repository-read","label":"Reads repository or persistence state","line":307,"detail":"var tenantId = user.FindFirstValue(\"TenantId\") ?? \"global\";","visibility":"secondary-visible","confidence":0.86},{"id":"program_top_level_guard-clause_309_57","kind":"guard-clause","label":"Guards early exit or rejection path","line":309,"detail":"if (result.IsSuccess) return Results.Ok(result.Value);","conditionSummary":"result.IsSuccess) return Results.Ok(result.Value","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"program_top_level_return_310_58","kind":"return","label":"Returns result","line":310,"detail":"return Results.BadRequest(result.Errors.Count > 0 ? result.Errors[0].Message : \"Unknown server error\");","visibility":"detail-only","confidence":0.7},{"id":"program_top_level_mapping_313_59","kind":"mapping","label":"Maps data or transforms shape","line":313,"detail":"knowledgeApi.MapPost(\"/ask\", async (AskQuestionRequest request, ClaimsPrincipal user, IKnowledgeService knowledgeService) =>","visibility":"detail-only","confidence":0.74},{"id":"program_top_level_repository-read_315_60","kind":"repository-read","label":"Reads repository or persistence state","line":315,"detail":"var tenantId = user.FindFirstValue(\"TenantId\") ?? \"global\";","visibility":"secondary-visible","confidence":0.86},{"id":"program_top_level_guard-clause_317_61","kind":"guard-clause","label":"Guards 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\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Web__Properties__launchSettings.json.json b/src/.documentation/cache/summaries/NexusReader.Web__Properties__launchSettings.json.json
new file mode 100644
index 0000000..00e207f
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Web__Properties__launchSettings.json.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Web/Properties/launchSettings.json","purpose":"Provides local launch profiles and environment settings used by dotnet tooling to run the NexusReader.Web project during development (URLs, debug inspect URI, and ASPNETCORE_ENVIRONMENT).","classification":{"role":"startup","layer":"application","confidence":0.9,"evidence":["Command pattern","Contains launch profiles (http/https) and applicationUrl entries used by dotnet run/VS tooling","Defines ASPNETCORE_ENVIRONMENT environment variable set to Development"]},"className":"","methods":[],"types":[],"serviceRegistrations":[],"startupActions":[{"name":"http","line":4,"kind":"unknown","targetCalls":[]},{"name":"https","line":14,"kind":"unknown","targetCalls":[]}],"dependencies":[],"patterns":["launch-profile","environment-configuration"],"domainConcepts":["local-hosting","development-environment","debugging/inspect-uri"],"keyDetails":"Defines two development launch profiles: 'http' (http://localhost:5104) and 'https' (https://localhost:7131 and http://localhost:5104). Both set ASPNETCORE_ENVIRONMENT=Development and include an inspectUri for browser debugging.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"startup","label":"http","line":4,"summary":"unknown startup action","confidence":0.78,"evidencePaths":["NexusReader.Web/Properties/launchSettings.json"]},{"kind":"startup","label":"https","line":14,"summary":"unknown startup action","confidence":0.78,"evidencePaths":["NexusReader.Web/Properties/launchSettings.json"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Web__Services__NativeStorageService.cs.json b/src/.documentation/cache/summaries/NexusReader.Web__Services__NativeStorageService.cs.json
new file mode 100644
index 0000000..8c56fd2
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Web__Services__NativeStorageService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Web/Services/NativeStorageService.cs","purpose":"Server-side implementation of INativeStorageService that wraps browser localStorage access via IJSRuntime (JS interop), providing safe/nullable results and handling cases where JS interop may not be available (e.g. prerendering).","classification":{"role":"service","layer":"frontend","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Class implements INativeStorageService (line 12)","Uses IJSRuntime and calls localStorage JS functions (lines 25, 38, 53, 67)"]},"className":"NativeStorageService","methods":[{"name":"NativeStorageService","line":16,"endLine":19,"signature":"(jsRuntime: IJSRuntime) -> NativeStorageService","purpose":"Constructor that captures IJSRuntime for use in JS interop calls.","calls":[],"actions":[{"id":"assign_18","kind":"mapping","label":"Store IJSRuntime","line":18,"detail":"_jsRuntime = jsRuntime","visibility":"detail-only","confidence":0.7}]},{"name":"SaveStringAsync","line":21,"endLine":32,"signature":"(key: string, value: string) -> Task<Result>","purpose":"Stores a string value in browser localStorage via JS interop and returns a FluentResults Result indicating success or failure.","calls":[],"actions":[{"id":"try-catch_23","kind":"mapping","label":"Attempt JS interop setItem and return success or failure","line":23,"detail":"try { await _jsRuntime.InvokeVoidAsync(\"localStorage.setItem\", key, value); 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supplies boolean parsing with default fallback; exposes 'secure' aliases that currently delegate to non-secure implementations.","orchestrationMethods":[{"name":"SaveStringAsync","line":21,"confidence":0.57,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["mapping","external-call","return"],"evidencePaths":["NexusReader.Web/Services/NativeStorageService.cs"]},{"name":"GetStringAsync","line":34,"confidence":0.57,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["mapping","external-call","return"],"evidencePaths":["NexusReader.Web/Services/NativeStorageService.cs"]},{"name":"GetBoolAsync","line":49,"confidence":0.57,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["mapping","external-call","guard-clause","return"],"evidencePaths":["NexusReader.Web/Services/NativeStorageService.cs"]},{"name":"RemoveAsync","line":63,"confidence":0.57,"reason":"Contains 1 architectural actions relevant to business execution.","actionKinds":["mapping","external-call","return"],"evidencePaths":["NexusReader.Web/Services/NativeStorageService.cs"]}],"typedContracts":[{"name":"NativeStorageService","kind":"model","line":12,"fieldCount":1,"evidencePaths":["NexusReader.Web/Services/NativeStorageService.cs"]}],"persistenceInteractions":[],"externalInteractions":[{"methodName":"SaveStringAsync","line":25,"kind":"external-call","detail":"_jsRuntime.InvokeVoidAsync(\"localStorage.setItem\", key, value)","evidencePaths":["NexusReader.Web/Services/NativeStorageService.cs"]},{"methodName":"GetStringAsync","line":38,"kind":"external-call","detail":"_jsRuntime.InvokeAsync<string?>(\"localStorage.getItem\", key)","evidencePaths":["NexusReader.Web/Services/NativeStorageService.cs"]},{"methodName":"GetBoolAsync","line":53,"kind":"external-call","detail":"_jsRuntime.InvokeAsync<string?>(\"localStorage.getItem\", key)","evidencePaths":["NexusReader.Web/Services/NativeStorageService.cs"]},{"methodName":"RemoveAsync","line":67,"kind":"external-call","detail":"_jsRuntime.InvokeVoidAsync(\"localStorage.removeItem\", key)","evidencePaths":["NexusReader.Web/Services/NativeStorageService.cs"]}],"evidenceAnchors":[{"kind":"orchestration-method","label":"SaveStringAsync","line":21,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.57,"evidencePaths":["NexusReader.Web/Services/NativeStorageService.cs"]},{"kind":"orchestration-method","label":"GetStringAsync","line":34,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.57,"evidencePaths":["NexusReader.Web/Services/NativeStorageService.cs"]},{"kind":"orchestration-method","label":"GetBoolAsync","line":49,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.57,"evidencePaths":["NexusReader.Web/Services/NativeStorageService.cs"]},{"kind":"orchestration-method","label":"RemoveAsync","line":63,"summary":"Contains 1 architectural actions relevant to business execution.","confidence":0.57,"evidencePaths":["NexusReader.Web/Services/NativeStorageService.cs"]},{"kind":"typed-contract","label":"NativeStorageService","line":12,"summary":"model with 1 fields.","confidence":0.8,"evidencePaths":["NexusReader.Web/Services/NativeStorageService.cs"]},{"kind":"external-call","label":"SaveStringAsync","line":25,"summary":"_jsRuntime.InvokeVoidAsync(\"localStorage.setItem\", key, value)","confidence":0.8,"evidencePaths":["NexusReader.Web/Services/NativeStorageService.cs"]},{"kind":"external-call","label":"GetStringAsync","line":38,"summary":"_jsRuntime.InvokeAsync<string?>(\"localStorage.getItem\", key)","confidence":0.8,"evidencePaths":["NexusReader.Web/Services/NativeStorageService.cs"]},{"kind":"external-call","label":"GetBoolAsync","line":53,"summary":"_jsRuntime.InvokeAsync<string?>(\"localStorage.getItem\", key)","confidence":0.8,"evidencePaths":["NexusReader.Web/Services/NativeStorageService.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Web__Services__ServerIdentityService.cs.json b/src/.documentation/cache/summaries/NexusReader.Web__Services__ServerIdentityService.cs.json
new file mode 100644
index 0000000..1522191
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Web__Services__ServerIdentityService.cs.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Web/Services/ServerIdentityService.cs","purpose":"Server-side implementation of an identity adapter for the Web project: validates credentials, registers users, exposes profile retrieval and lightweight token/ logout stubs suitable for Blazor Server constraints.","classification":{"role":"service","layer":"application","confidence":0.9,"evidence":["Service naming pattern","Application/service path heuristic","Class named ServerIdentityService in Web.Services namespace (line 15)","Uses UserManager / SignInManager / IHttpContextAccessor / IMediator (lines 17-20) which indicates identity orchestration and mediation"]},"className":"ServerIdentityService","methods":[{"name":"ServerIdentityService","line":25,"endLine":37,"signature":"(userManager: UserManager<NexusUser>, signInManager: SignInManager<NexusUser>, httpContextAccessor: IHttpContextAccessor, mediator: IMediator, storageService: INativeStorageService) -> ServerIdentityService","purpose":"Constructor that injects identity, http context, mediator and native storage dependencies.","calls":[],"actions":[{"id":"field-init_32","kind":"mapping","label":"Save DI dependencies","line":32,"detail":"Assigns injected services to private readonly fields","visibility":"detail-only","confidence":0.7}]},{"name":"LoginAsync","line":39,"endLine":70,"signature":"(email: string, password: string, rememberMe: bool = false) -> Task<Result>","purpose":"Validates credentials against ASP.NET Identity, enforces lockout and failed-access counting, and returns success/failure without performing cookie sign-in (Blazor Server constraint).","calls":[{"targetFile":"unknown","targetMethod":"UserManager.FindByEmailAsync","callLine":43,"paramSummary":"email"},{"targetFile":"unknown","targetMethod":"UserManager.IsLockedOutAsync","callLine":47,"paramSummary":"user"},{"targetFile":"unknown","targetMethod":"UserManager.CheckPasswordAsync","callLine":50,"paramSummary":"user, password"},{"targetFile":"unknown","targetMethod":"UserManager.AccessFailedAsync","callLine":53,"paramSummary":"user"},{"targetFile":"unknown","targetMethod":"UserManager.ResetAccessFailedCountAsync","callLine":58,"paramSummary":"user"}],"actions":[{"id":"try-catch_41","kind":"mapping","label":"Exception handling","line":41,"detail":"Catches Exception and returns Result.Fail with wrapped Error containing exception message","visibility":"detail-only","confidence":0.7},{"id":"guard-clause_43","kind":"guard-clause","label":"Missing user","line":43,"detail":"Return Result.Fail when FindByEmailAsync returns null","conditionSummary":"user == null","outcomeLabels":["fail","continue"],"visibility":"detail-only","confidence":0.7},{"id":"loginasync_repository-read_43_0","kind":"repository-read","label":"Reads repository or persistence state","line":43,"detail":"var user = await _userManager.FindByEmailAsync(email);","visibility":"secondary-visible","confidence":0.86},{"id":"loginasync_guard-clause_44_1","kind":"guard-clause","label":"Guards early exit or rejection path","line":44,"detail":"if (user == null) return Result.Fail(\"Nieprawidłowy e-mail lub hasło.\");","conditionSummary":"user == null) return Result.Fail(\"Nieprawidłowy e-mail lub hasło.\"","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"guard-clause_47","kind":"guard-clause","label":"Account locked","line":47,"detail":"Return Result.Fail if account is locked","conditionSummary":"IsLockedOutAsync(user) == true","outcomeLabels":["fail","continue"],"visibility":"detail-only","confidence":0.7},{"id":"loginasync_guard-clause_47_2","kind":"guard-clause","label":"Guards early exit or rejection path","line":47,"detail":"if (await _userManager.IsLockedOutAsync(user)) return Result.Fail(\"Konto zostało zablokowane.\");","conditionSummary":"await _userManager.IsLockedOutAsync(user)) return Result.Fail(\"Konto zostało zablokowane.\"","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"branch_50","kind":"branch","label":"Password verification","line":50,"detail":"On incorrect password calls AccessFailedAsync and returns failure; 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no refresh token logic implemented on server in this adapter.","calls":[],"actions":[{"id":"return_106","kind":"return","label":"Immediate success","line":106,"detail":"Returns Task.FromResult(Result.Ok())","visibility":"detail-only","confidence":0.7}]},{"name":"GetProfileAsync","line":108,"endLine":120,"signature":"() -> Task<Result<UserProfileDto>>","purpose":"Reads the current HttpContext user, validates authentication, resolves the user id claim and asks MediatR to fetch the user profile DTO.","calls":[{"targetFile":"unknown","targetMethod":"IHttpContextAccessor.HttpContext.get","callLine":110,"paramSummary":"none"},{"targetFile":"unknown","targetMethod":"ClaimsPrincipal.Identity.get","callLine":111,"paramSummary":"none"},{"targetFile":"unknown","targetMethod":"ClaimsPrincipal.FindFirstValue","callLine":113,"paramSummary":"ClaimTypes.NameIdentifier"},{"targetFile":"NexusReader.Application/Queries/User/GetUserProfileQuery.cs","targetMethod":"GetUserProfileQuery (ctor)","callLine":116,"paramSummary":"userId"},{"targetFile":"unknown","targetMethod":"IMediator.Send","callLine":116,"paramSummary":"GetUserProfileQuery(userId)"}],"actions":[{"id":"guard-clause_110","kind":"guard-clause","label":"No HttpContext or not authenticated","line":110,"detail":"Returns Result.Fail(\"Not authenticated.\") when no authenticated principal","conditionSummary":"HttpContext?.User == null || !User.Identity?.IsAuthenticated == true","outcomeLabels":["fail","continue"],"visibility":"detail-only","confidence":0.7},{"id":"getprofileasync_guard-clause_111_0","kind":"guard-clause","label":"Guards early exit or rejection path","line":111,"detail":"if (user == null || !user.Identity?.IsAuthenticated == true) return Result.Fail(\"Not authenticated.\");","conditionSummary":"user == null || !user.Identity?.IsAuthenticated == true) return Result.Fail(\"Not authenticated.\"","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"guard-clause_113","kind":"guard-clause","label":"Missing user id claim","line":113,"detail":"Returns Result.Fail(\"User ID not found.\") when claim absent","conditionSummary":"userId == null","outcomeLabels":["fail","continue"],"visibility":"detail-only","confidence":0.7},{"id":"getprofileasync_repository-read_113_1","kind":"repository-read","label":"Reads repository or persistence state","line":113,"detail":"var userId = user.FindFirstValue(ClaimTypes.NameIdentifier);","visibility":"secondary-visible","confidence":0.86},{"id":"getprofileasync_guard-clause_114_2","kind":"guard-clause","label":"Guards early exit or rejection path","line":114,"detail":"if (userId == null) return Result.Fail(\"User ID not found.\");","conditionSummary":"userId == null) return Result.Fail(\"User ID not found.\"","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"branch_116","kind":"branch","label":"Mediator query result handling","line":116,"detail":"If mediator returns failed Result, propagate errors; otherwise return Result.Ok(result.Value)","conditionSummary":"result.IsFailed","outcomeLabels":["fail propagate errors","return Ok(profile)"],"visibility":"detail-only","confidence":0.7},{"id":"getprofileasync_guard-clause_117_3","kind":"guard-clause","label":"Guards early exit or rejection path","line":117,"detail":"if (result.IsFailed) return Result.Fail(result.Errors);","conditionSummary":"result.IsFailed) return Result.Fail(result.Errors","outcomeLabels":["exit","continue"],"visibility":"primary-visible","confidence":0.9},{"id":"getprofileasync_return_119_4","kind":"return","label":"Returns result","line":119,"detail":"return Result.Ok(result.Value);","visibility":"detail-only","confidence":0.7}]}],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":["NexusReader.Application.DTOs.User (UserProfileDto)","NexusReader.Application.Queries.User (GetUserProfileQuery)","NexusReader.Domain.Entities (NexusUser)","NexusReader.Data.Persistence","NexusReader.Application.Abstractions.Services (IIdentityService)"],"patterns":["Identity Adapter","Facade","Mediator (consumes query)"],"domainConcepts":["User","SubscriptionPlan","Tenant","Authentication / Claims"],"keyDetails":"This server-side identity service validates credentials and handles registration but deliberately avoids performing cookie sign-in or logout actions in-process because Blazor Server / SignalR circuits make headers/cookies write-constrained; UI routes (/account/login-form, /account/logout-form) are responsible for final cookie operations.","orchestrationMethods":[{"name":"LoginAsync","line":39,"confidence":0.98,"reason":"Coordinates 5 downstream calls with 3 architectural actions.","actionKinds":["mapping","guard-clause","repository-read","branch","return"],"evidencePaths":["NexusReader.Web/Services/ServerIdentityService.cs","unknown","unknown","unknown","unknown","unknown"]},{"name":"GetProfileAsync","line":108,"confidence":0.98,"reason":"Coordinates 5 downstream calls with 2 architectural actions.","actionKinds":["guard-clause","repository-read","branch","return"],"evidencePaths":["NexusReader.Web/Services/ServerIdentityService.cs","unknown","unknown","unknown","NexusReader.Application/Queries/User/GetUserProfileQuery.cs","unknown"]},{"name":"RegisterAsync","line":79,"confidence":0.89,"reason":"Contains 3 architectural actions relevant to business execution.","actionKinds":["mapping","branch","return","repository-read"],"evidencePaths":["NexusReader.Web/Services/ServerIdentityService.cs","unknown"]}],"typedContracts":[],"persistenceInteractions":[{"methodName":"LoginAsync","line":43,"kind":"persistence-read","detail":"var user = await _userManager.FindByEmailAsync(email);","evidencePaths":["NexusReader.Web/Services/ServerIdentityService.cs"]},{"methodName":"RegisterAsync","line":98,"kind":"persistence-read","detail":"return Result.Fail(result.Errors.Select(e => e.Description).FirstOrDefault() ?? \"Rejestracja nie powiodła się.\");","evidencePaths":["NexusReader.Web/Services/ServerIdentityService.cs"]},{"methodName":"GetProfileAsync","line":113,"kind":"persistence-read","detail":"var userId = user.FindFirstValue(ClaimTypes.NameIdentifier);","evidencePaths":["NexusReader.Web/Services/ServerIdentityService.cs"]}],"externalInteractions":[],"evidenceAnchors":[{"kind":"orchestration-method","label":"LoginAsync","line":39,"summary":"Coordinates 5 downstream calls with 3 architectural actions.","confidence":0.98,"evidencePaths":["NexusReader.Web/Services/ServerIdentityService.cs","unknown","unknown","unknown","unknown","unknown"]},{"kind":"orchestration-method","label":"GetProfileAsync","line":108,"summary":"Coordinates 5 downstream calls with 2 architectural actions.","confidence":0.98,"evidencePaths":["NexusReader.Web/Services/ServerIdentityService.cs","unknown","unknown","unknown","NexusReader.Application/Queries/User/GetUserProfileQuery.cs","unknown"]},{"kind":"orchestration-method","label":"RegisterAsync","line":79,"summary":"Contains 3 architectural actions relevant to business execution.","confidence":0.89,"evidencePaths":["NexusReader.Web/Services/ServerIdentityService.cs","unknown"]},{"kind":"persistence","label":"LoginAsync","line":43,"summary":"var user = await _userManager.FindByEmailAsync(email);","confidence":0.82,"evidencePaths":["NexusReader.Web/Services/ServerIdentityService.cs"]},{"kind":"persistence","label":"RegisterAsync","line":98,"summary":"return Result.Fail(result.Errors.Select(e => e.Description).FirstOrDefault() ?? \"Rejestracja nie powiodła się.\");","confidence":0.82,"evidencePaths":["NexusReader.Web/Services/ServerIdentityService.cs"]},{"kind":"persistence","label":"GetProfileAsync","line":113,"summary":"var userId = user.FindFirstValue(ClaimTypes.NameIdentifier);","confidence":0.82,"evidencePaths":["NexusReader.Web/Services/ServerIdentityService.cs"]}]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Web__appsettings.Development.json.json b/src/.documentation/cache/summaries/NexusReader.Web__appsettings.Development.json.json
new file mode 100644
index 0000000..1daa465
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Web__appsettings.Development.json.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Web/appsettings.Development.json","purpose":"Environment-specific JSON configuration (Development) that sets logging levels for the application during development.","classification":{"role":"config","layer":"infrastructure","confidence":0.9,"evidence":["Config/settings pattern","File named appsettings.Development.json — standard .NET environment config","Contains a top-level Logging -> LogLevel section with Default and Microsoft.AspNetCore entries"]},"className":"","methods":[],"types":[],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":[],"domainConcepts":[],"keyDetails":"Defines Development logging levels: Default = Information and Microsoft.AspNetCore = Warning (lines 2–6). This file is environment-scoped and merged into configuration at startup by the .NET host.","orchestrationMethods":[],"typedContracts":[],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[]}
\ No newline at end of file
diff --git a/src/.documentation/cache/summaries/NexusReader.Web__appsettings.json.json b/src/.documentation/cache/summaries/NexusReader.Web__appsettings.json.json
new file mode 100644
index 0000000..799b93f
--- /dev/null
+++ b/src/.documentation/cache/summaries/NexusReader.Web__appsettings.json.json
@@ -0,0 +1 @@
+{"path":"NexusReader.Web/appsettings.json","purpose":"Application configuration file (appsettings.json) for the NexusReader.Web project; contains runtime settings for billing (Stripe), logging, database connections, authentication, AI, and API base URL used across the application at startup.","classification":{"role":"config","layer":"application","confidence":0.9,"evidence":["Config/settings pattern","Top-level keys: Stripe, ConnectionStrings, Authentication, Ai, Logging, ApiBaseUrl","Typical .NET appsettings.json used during application startup/configuration binding"]},"className":"","methods":[],"types":[{"name":"Stripe","kind":"dto","line":2,"purpose":"Holds Stripe-related secrets and product identifiers for billing and webhook verification.","fields":[{"name":"ApiKey","type":"string","required":true,"line":3,"description":"Secret API key for Stripe (sk_test_placeholder)"},{"name":"WebhookSecret","type":"string","required":true,"line":4,"description":"Webhook signing secret for validating Stripe webhooks"},{"name":"ProProductId","type":"string","required":false,"line":5,"description":"Product id for Pro tier"},{"name":"BasicProductId","type":"string","required":false,"line":6,"description":"Product id for Basic tier"},{"name":"FreeProductId","type":"string","required":false,"line":7,"description":"Product id for Free tier"}]},{"name":"Logging","kind":"dto","line":9,"purpose":"Controls logging levels for the application and framework libraries.","fields":[{"name":"LogLevel.Default","type":"string","required":true,"line":11,"description":"Default minimum log level (Information)"},{"name":"LogLevel.Microsoft.AspNetCore","type":"string","required":true,"line":12,"description":"Minimum log level for ASP.NET Core (Warning)"}]},{"name":"AllowedHosts","kind":"type-alias","line":15,"purpose":"Comma or wildcard list of allowed hosts for host filtering.","fields":[{"name":"AllowedHosts","type":"string","required":true,"line":15,"description":"Host filter value, here '*' allowing all hosts"}]},{"name":"ConnectionStrings","kind":"dto","line":16,"purpose":"Database connection strings for different providers used by the application.","fields":[{"name":"SqliteConnection","type":"string","required":false,"line":17,"description":"SQLite connection string (Data Source=nexus.db)"},{"name":"PostgresConnection","type":"string","required":false,"line":18,"description":"Postgres connection string for production/dev"}]},{"name":"Authentication.Google","kind":"dto","line":20,"purpose":"OAuth2 client credentials for Google authentication provider.","fields":[{"name":"ClientId","type":"string","required":true,"line":22,"description":"Google OAuth ClientId"},{"name":"ClientSecret","type":"string","required":true,"line":23,"description":"Google OAuth ClientSecret"}]},{"name":"Ai.Google","kind":"dto","line":26,"purpose":"Configuration for AI provider (Google) including model selection and token limits.","fields":[{"name":"ApiKey","type":"string","required":true,"line":28,"description":"API key for Google AI"},{"name":"Model","type":"string","required":true,"line":29,"description":"Model name to use (e.g., gemini-2.5-flash-lite)"},{"name":"MaxInputTokens","type":"number","required":false,"line":30,"description":"Maximum allowed input tokens"},{"name":"MaxOutputTokens","type":"number","required":false,"line":31,"description":"Maximum allowed output tokens"}]},{"name":"ApiBaseUrl","kind":"type-alias","line":34,"purpose":"Base URL used by clients (e.g., WASM or other frontends) to contact the API.","fields":[{"name":"ApiBaseUrl","type":"string","required":true,"line":34,"description":"API base URL (http://localhost:5000)"}]}],"serviceRegistrations":[],"startupActions":[],"dependencies":[],"patterns":["Configuration File","12-factor config"],"domainConcepts":["Billing","Authentication","AI/Modeling","Database Connection","Logging"],"keyDetails":"Contains sensitive placeholders (Stripe ApiKey, WebhookSecret, Google OAuth keys, AI ApiKey). Connection strings include both SQLite (local) and Postgres (hosted) variants. ApiBaseUrl set to localhost for local development.","orchestrationMethods":[],"typedContracts":[{"name":"Stripe","kind":"dto","line":2,"fieldCount":5,"evidencePaths":["NexusReader.Web/appsettings.json"]},{"name":"Logging","kind":"dto","line":9,"fieldCount":2,"evidencePaths":["NexusReader.Web/appsettings.json"]},{"name":"ConnectionStrings","kind":"dto","line":16,"fieldCount":2,"evidencePaths":["NexusReader.Web/appsettings.json"]},{"name":"Authentication.Google","kind":"dto","line":20,"fieldCount":2,"evidencePaths":["NexusReader.Web/appsettings.json"]},{"name":"Ai.Google","kind":"dto","line":26,"fieldCount":4,"evidencePaths":["NexusReader.Web/appsettings.json"]}],"persistenceInteractions":[],"externalInteractions":[],"evidenceAnchors":[{"kind":"typed-contract","label":"Stripe","line":2,"summary":"dto with 5 fields.","confidence":0.8,"evidencePaths":["NexusReader.Web/appsettings.json"]},{"kind":"typed-contract","label":"Logging","line":9,"summary":"dto with 2 fields.","confidence":0.8,"evidencePaths":["NexusReader.Web/appsettings.json"]},{"kind":"typed-contract","label":"ConnectionStrings","line":16,"summary":"dto with 2 fields.","confidence":0.8,"evidencePaths":["NexusReader.Web/appsettings.json"]},{"kind":"typed-contract","label":"Authentication.Google","line":20,"summary":"dto with 2 fields.","confidence":0.8,"evidencePaths":["NexusReader.Web/appsettings.json"]}]}
\ No newline at end of file
diff --git a/src/.documentation/collections/index.md b/src/.documentation/collections/index.md
new file mode 100644
index 0000000..18c3085
--- /dev/null
+++ b/src/.documentation/collections/index.md
@@ -0,0 +1,7 @@
+## Collections
+
+This collection groups collections documentation generated from the repository semantic map.
+
+### Documents
+
+- [Project Overview and Architecture](overview.md): ## Project Overview and Architecture A concise high-level view of how the solution projects fit toge...
\ No newline at end of file
diff --git a/src/.documentation/collections/overview.md b/src/.documentation/collections/overview.md
new file mode 100644
index 0000000..f57d039
--- /dev/null
+++ b/src/.documentation/collections/overview.md
@@ -0,0 +1,439 @@
+## Project Overview and Architecture
+A concise high-level view of how the solution projects fit together, their runtime hosts (server, WASM client, MAUI) and how cross-cutting concerns are wired via dependency injection, mapping and real-time services. Diagrams below show dependencies, startup/service registration, Program.cs control and method-level flows.
+
+=== DIAGRAM 1: Dependency and Model Map (dependency-map) ===
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    flow_file_nexusreader_application_abstractions_services_ibillingservice_cs_file_1["IBillingService"]
+    flow_file_nexusreader_application_abstractions_services_ibookstorageservice_cs_file_1["IBookStorageService"]
+    flow_file_nexusreader_application_abstractions_services_iidentityservice_cs_file_1["IIdentityService"]
+    flow_file_nexusreader_application_abstractions_services_iknowledgeservice_cs_file_1["IKnowledgeService"]
+    flow_file_nexusreader_application_abstractions_messaging_icommand_cs_file_1["ICommand.cs"]
+    flow_file_nexusreader_application_abstractions_messaging_icommandhandler_cs_file_1["ICommandHandler"]
+    flow_file_nexusreader_application_abstractions_messaging_iquery_cs_file_1["IQuery.cs"]
+    flow_file_nexusreader_application_abstractions_messaging_iqueryhandler_cs_file_1["IQueryHandler<TQuery, TResponse>"]
+    flow_file_nexusreader_application_abstractions_persistence_iebookrepository_cs_file_1["IEbookRepository"]
+    flow_file_nexusreader_infrastructure_identity_tokenlimithandler_cs_file_1["TokenLimitHandler"]
+    flow_type_nexusreader_application_abstractions_messaging_icommand_cs_icommand_6[/"ICommand"/]
+    flow_type_nexusreader_application_abstractions_messaging_icommand_cs_icommand_tresponse_10[/"ICommand<TResponse>"/]
+    flow_type_nexusreader_application_abstractions_messaging_icommandhandler_cs_icommandhandler_tcommand_6[/"ICommandHandler<TCommand>"/]
+    flow_type_nexusreader_application_abstractions_messaging_icommandhandler_cs_icommandhandler_tcommand_tresponse_11[/"ICommandHandler<TCommand, TResponse>"/]
+    flow_type_nexusreader_application_abstractions_messaging_iquery_cs_iquery_tresponse_6[/"IQuery<TResponse>"/]
+    flow_type_nexusreader_application_abstractions_messaging_iqueryhandler_cs_iqueryhandler_6[/"IQueryHandler"/]
+    flow_type_nexusreader_application_abstractions_persistence_iebookrepository_cs_iebookrepository_9[/"IEbookRepository"/]
+    flow_type_nexusreader_application_abstractions_services_ibillingservice_cs_ibillingservice_6[/"IBillingService"/]
+    flow_type_nexusreader_application_abstractions_services_ibookstorageservice_cs_ibookstorageservice_6[/"IBookStorageService"/]
+    flow_type_nexusreader_application_abstractions_services_iidentityservice_cs_iidentityservice_6[/"IIdentityService"/]
+    flow_file_nexusreader_application_abstractions_messaging_icommand_cs_file_1 -->|interface ICommand| flow_type_nexusreader_application_abstractions_messaging_icommand_cs_icommand_6
+    flow_file_nexusreader_application_abstractions_messaging_icommand_cs_file_1 -->|interface ICommand TResponse>| flow_type_nexusreader_application_abstractions_messaging_icommand_cs_icommand_tresponse_10
+    flow_file_nexusreader_application_abstractions_messaging_icommandhandler_cs_file_1 -->|interface ICommandHandler TCommand>| flow_type_nexusreader_application_abstractions_messaging_icommandhandler_cs_icommandhandler_tcommand_6
+    flow_file_nexusreader_application_abstractions_messaging_icommandhandler_cs_file_1 -->|interface ICommandHandler TCommand, TResponse>| flow_type_nexusreader_application_abstractions_messaging_icommandhandler_cs_icommandhandler_tcommand_tresponse_11
+    flow_file_nexusreader_application_abstractions_messaging_iquery_cs_file_1 -->|interface IQuery TResponse>| flow_type_nexusreader_application_abstractions_messaging_iquery_cs_iquery_tresponse_6
+    flow_file_nexusreader_application_abstractions_messaging_iqueryhandler_cs_file_1 -->|interface IQueryHandler| flow_type_nexusreader_application_abstractions_messaging_iqueryhandler_cs_iqueryhandler_6
+    flow_file_nexusreader_application_abstractions_persistence_iebookrepository_cs_file_1 -->|interface IEbookRepository| flow_type_nexusreader_application_abstractions_persistence_iebookrepository_cs_iebookrepository_9
+    flow_file_nexusreader_application_abstractions_services_ibillingservice_cs_file_1 -->|interface IBillingService| flow_type_nexusreader_application_abstractions_services_ibillingservice_cs_ibillingservice_6
+    flow_file_nexusreader_application_abstractions_services_ibookstorageservice_cs_file_1 -->|interface IBookStorageService| flow_type_nexusreader_application_abstractions_services_ibookstorageservice_cs_ibookstorageservice_6
+    flow_file_nexusreader_application_abstractions_services_iidentityservice_cs_file_1 -->|interface IIdentityService| flow_type_nexusreader_application_abstractions_services_iidentityservice_cs_iidentityservice_6
+    flow_file_nexusreader_application_abstractions_services_iknowledgeservice_cs_file_1 -->|interface IKnowledgeService| flow_type_nexusreader_application_abstractions_services_iknowledgeservice_cs_iknowledge_6
+    click flow_file_nexusreader_application_abstractions_messaging_iquery_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Messaging/IQuery.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_messaging_iquery_cs_iquery_tresponse_6 href "vscode://file/NexusReader.Application/Abstractions/Messaging/IQuery.cs:6:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_messaging_icommand_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Messaging/ICommand.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_messaging_icommand_cs_icommand_6 href "vscode://file/NexusReader.Application/Abstractions/Messaging/ICommand.cs:6:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_messaging_icommand_cs_icommand_tresponse_10 href "vscode://file/NexusReader.Application/Abstractions/Messaging/ICommand.cs:10:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_messaging_icommandhandler_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_messaging_icommandhandler_cs_icommandhandler_tcommand_6 href "vscode://file/NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs:6:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_messaging_icommandhandler_cs_icommandhandler_tcommand_tresponse_11 href "vscode://file/NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs:11:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_messaging_iqueryhandler_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Messaging/IQueryHandler.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_messaging_iqueryhandler_cs_iqueryhandler_6 href "vscode://file/NexusReader.Application/Abstractions/Messaging/IQueryHandler.cs:6:1" "Open source"
+    click flow_file_nexusreader_infrastructure_identity_tokenlimithandler_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Identity/TokenLimitHandler.cs:1:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_services_ibillingservice_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Services/IBillingService.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_services_ibillingservice_cs_ibillingservice_6 href "vscode://file/NexusReader.Application/Abstractions/Services/IBillingService.cs:6:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_persistence_iebookrepository_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Persistence/IEbookRepository.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_persistence_iebookrepository_cs_iebookrepository_9 href "vscode://file/NexusReader.Application/Abstractions/Persistence/IEbookRepository.cs:9:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_services_ibookstorageservice_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Services/IBookStorageService.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_services_ibookstorageservice_cs_ibookstorageservice_6 href "vscode://file/NexusReader.Application/Abstractions/Services/IBookStorageService.cs:6:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_services_iidentityservice_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Services/IIdentityService.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_services_iidentityservice_cs_iidentityservice_6 href "vscode://file/NexusReader.Application/Abstractions/Services/IIdentityService.cs:6:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_services_iknowledgeservice_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:1:1" "Open source"
+```
+
+This diagram maps core application interfaces (commands, queries, services, repositories) and shows where infrastructure handlers (e.g., TokenLimitHandler) connect. It highlights ownership: Application contains abstractions, Infrastructure implements runtime concerns.
+
+=== DIAGRAM 2: Startup and Service Registration Flow (primary-runtime) ===
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    subgraph flow_1_nexusreader_web_client_program_cs["Program.cs"]
+    end
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_web_client_nexusreader_web_client_csproj_project_configuration_1["project-configuration"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_file_nexusreader_application_dependencyinjection_cs_file_1["DependencyInjection"]
+    flow_file_nexusreader_application_mappings_mappingconfig_cs_file_1["MappingConfig"]
+    flow_file_nexusreader_infrastructure_dependencyinjection_cs_file_1["DependencyInjection"]
+    flow_file_nexusreader_web_client_nexusreader_web_client_csproj_file_1["NexusReader.Web.Client.csproj"]
+    flow_type_nexusreader_application_dependencyinjection_cs_configured_via_addmapsterconfiguration_extension_10[/"configured via AddMapsterConfiguration extension"/]
+    flow_type_nexusreader_application_dependencyinjection_cs_handlers_discovered_in_this_assembly_11[/"handlers discovered in this assembly"/]
+    flow_type_nexusreader_application_mappings_mappingconfig_cs_servicemapper_20[/"ServiceMapper"/]
+    flow_type_nexusreader_application_mappings_mappingconfig_cs_typeadapterconfig_instance_19[/"TypeAdapterConfig (instance)"/]
+    flow_type_nexusreader_infrastructure_dependencyinjection_cs_appdbcontext_36[/"AppDbContext"/]
+    flow_type_nexusreader_infrastructure_dependencyinjection_cs_appdbcontext_41[/"AppDbContext"/]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_file_nexusreader_application_dependencyinjection_cs_file_1 -->|Mapster configuration / mapping profiles| flow_type_nexusreader_application_dependencyinjection_cs_configured_via_addmapsterconfiguration_extension_10
+    flow_file_nexusreader_application_dependencyinjection_cs_file_1 -->|MediatR handlers from this assembly| flow_type_nexusreader_application_dependencyinjection_cs_handlers_discovered_in_this_assembly_11
+    flow_file_nexusreader_application_mappings_mappingconfig_cs_file_1 -->|IMapper| flow_type_nexusreader_application_mappings_mappingconfig_cs_servicemapper_20
+    flow_file_nexusreader_application_mappings_mappingconfig_cs_file_1 -->|TypeAdapterConfig| flow_type_nexusreader_application_mappings_mappingconfig_cs_typeadapterconfig_instance_19
+    flow_file_nexusreader_infrastructure_dependencyinjection_cs_file_1 -->|AppDbContext DbContextFactory| flow_type_nexusreader_infrastructure_dependencyinjection_cs_appdbcontext_36
+    flow_file_nexusreader_infrastructure_dependencyinjection_cs_file_1 -->|AppDbContext DbContext| flow_type_nexusreader_infrastructure_dependencyinjection_cs_appdbcontext_41
+    flow_file_nexusreader_web_client_nexusreader_web_client_csproj_file_1 -->|unknown| flow_method_nexusreader_web_client_nexusreader_web_client_csproj_project_configuration_1
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|unknown| flow_method_nexusreader_web_client_program_cs_run_wasm_host_59
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    click flow_file_nexusreader_application_mappings_mappingconfig_cs_file_1 href "vscode://file/NexusReader.Application/Mappings/MappingConfig.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_mappings_mappingconfig_cs_typeadapterconfig_instance_19 href "vscode://file/NexusReader.Application/Mappings/MappingConfig.cs:19:1" "Open source"
+    click flow_type_nexusreader_application_mappings_mappingconfig_cs_servicemapper_20 href "vscode://file/NexusReader.Application/Mappings/MappingConfig.cs:20:1" "Open source"
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_run_wasm_host_59 href "vscode://file/NexusReader.Web.Client/Program.cs:59:1" "Open source"
+    click flow_file_nexusreader_web_client_nexusreader_web_client_csproj_file_1 href "vscode://file/NexusReader.Web.Client/NexusReader.Web.Client.csproj:1:1" "Open source"
+    click flow_method_nexusreader_web_client_nexusreader_web_client_csproj_project_configuration_1 href "vscode://file/NexusReader.Web.Client/NexusReader.Web.Client.csproj:1:1" "Open source"
+    click flow_file_nexusreader_application_dependencyinjection_cs_file_1 href "vscode://file/NexusReader.Application/DependencyInjection.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_dependencyinjection_cs_configured_via_addmapsterconfiguration_extension_10 href "vscode://file/NexusReader.Application/DependencyInjection.cs:10:1" "Open source"
+    click flow_type_nexusreader_application_dependencyinjection_cs_handlers_discovered_in_this_assembly_11 href "vscode://file/NexusReader.Application/DependencyInjection.cs:11:1" "Open source"
+    click flow_file_nexusreader_infrastructure_dependencyinjection_cs_file_1 href "vscode://file/NexusReader.Infrastructure/DependencyInjection.cs:1:1" "Open source"
+    click flow_type_nexusreader_infrastructure_dependencyinjection_cs_appdbcontext_36 href "vscode://file/NexusReader.Infrastructure/DependencyInjection.cs:36:1" "Open source"
+    click flow_type_nexusreader_infrastructure_dependencyinjection_cs_appdbcontext_41 href "vscode://file/NexusReader.Infrastructure/DependencyInjection.cs:41:1" "Open source"
+```
+
+This diagram details how Web.Client's Program.cs configures the WASM host: mapping profiles, MediatR handlers, AppDbContext factories and client-specific service substitutions (WasmKnowledgeService, WebPlatformService). It shows where Infrastructure and Application DI extensions are invoked.
+
+=== DIAGRAM 3: Program.cs Flow (primary-runtime) ===
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    subgraph flow_1_nexusreader_web_client_program_cs["Program.cs"]
+    end
+    flow_file_nexusreader_application_abstractions_services_iknowledgeservice_cs_file_1["IKnowledgeService"]
+    flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1["IPlatformService"]
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_askquestionasync_15["AskQuestionAsync"]
+    flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_verifygroundednessasync_13["VerifyGroundednessAsync"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_type_nexusreader_application_abstractions_services_iknowledgeservice_cs_groundednessresult_19[/"GroundednessResult"/]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+    flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+    flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+    flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_file_nexusreader_application_abstractions_services_iknowledgeservice_cs_file_1 -->|dto GroundednessResult| flow_type_nexusreader_application_abstractions_services_iknowledgeservice_cs_groundednessresult_19
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|FindAuthorByNameAsync| flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|GetService| flow_method_nexusreader_web_client_program_cs_getservice_71
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|Program top-level startup| flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|unknown| flow_method_nexusreader_web_client_program_cs_run_wasm_host_59
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 -->|Reads repository or persistence state| flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88
+    flow_method_nexusreader_web_client_program_cs_getservice_71 -->|returns null| flow_action_nexusreader_web_client_program_cs_getservice_return_71_71
+    click flow_file_nexusreader_application_abstractions_services_iknowledgeservice_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_services_iknowledgeservice_cs_groundednessresult_19 href "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:19:1" "Open source"
+    click flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_verifygroundednessasync_13 href "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:13:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:1:1" "Open source"
+    click flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_askquestionasync_15 href "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:15:1" "Open source"
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_run_wasm_host_59 href "vscode://file/NexusReader.Web.Client/Program.cs:59:1" "Open source"
+```
+
+This flow emphasizes Program.cs usage: which services are resolved on the WASM client, which are replaced by throwing stubs or Wasm-specific implementations, and how client startup triggers queries/commands.
+
+=== DIAGRAM 4: Program.cs Execution Control Flow (control-flow) ===
+```mermaid
+flowchart TD
+    subgraph NexusReader_Application_Abstractions_Services_IKnowledgeService["IKnowledgeService"]
+    end
+    subgraph NexusReader_Application_Abstractions_Services_IPlatformService["IPlatformService"]
+    end
+    subgraph NexusReader_Web_Client_Program["Program"]
+    end
+    flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1["IPlatformService"]
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_askquestionasync_15["AskQuestionAsync"]
+    flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_verifygroundednessasync_13["VerifyGroundednessAsync"]
+    flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_getdevicecontext_10["GetDeviceContext"]
+    flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_vibrateasync_9["VibrateAsync"]
+    flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_vibrateerrorasync_8["VibrateErrorAsync"]
+    flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_vibratesuccessasync_7["VibrateSuccessAsync"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_action_nexusreader_application_commands_ai_verifygroundednesscommand_cs_handle_return_20_20(["Returns result"])
+    flow_action_nexusreader_application_queries_library_asklibraryquestionquery_cs_handle_return_30_30(["Returns result"])
+    flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1 -->|GetDeviceContext| flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_getdevicecontext_10
+    flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1 -->|VibrateAsync| flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_vibrateasync_9
+    flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1 -->|VibrateErrorAsync| flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_vibrateerrorasync_8
+    flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1 -->|VibrateSuccessAsync| flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_vibratesuccessasync_7
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 -->|Reads repository or persistence state| flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88
+    flow_method_nexusreader_web_client_program_cs_getservice_71 -->|returns null| flow_action_nexusreader_web_client_program_cs_getservice_return_71_71
+    click flow_action_nexusreader_application_commands_ai_verifygroundednesscommand_cs_handle_return_20_20 href "vscode://file/NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs:20:1" "Open source"
+    click flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_verifygroundednessasync_13 href "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:13:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:1:1" "Open source"
+    click flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_vibratesuccessasync_7 href "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:7:1" "Open source"
+    click flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_vibrateerrorasync_8 href "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:8:1" "Open source"
+    click flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_vibrateasync_9 href "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:9:1" "Open source"
+    click flow_method_nexusreader_application_queries_library_asklibraryquestionquery_cs_handle_return_30_30 href "vscode://file/NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs:30:1" "Open source"
+    click flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_askquestionasync_15 href "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:15:1" "Open source"
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_run_wasm_host_59 href "vscode://file/NexusReader.Web.Client/Program.cs:59:1" "Open source"
+```
+
+This control-flow diagram traces runtime calls through Program into application commands/queries and platform service calls (e.g., vibration). It illustrates which runtime entrypoints trigger domain/application logic.
+
+=== DIAGRAM 5: Program.cs Contracts and Entities (class-diagram) ===
+```mermaid
+classDiagram
+    class flow_file_nexusreader_application_abstractions_services_iknowledgeservice_cs_file_1["IKnowledgeService"]
+    class flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1["IPlatformService"]
+    class flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    class flow_type_nexusreader_application_abstractions_services_iknowledgeservice_cs_groundednessresult_19["GroundednessResult"]
+    class flow_type_nexusreader_application_abstractions_services_iplatformservice_cs_devicecontext_13["DeviceContext"]
+    class flow_type_nexusreader_application_abstractions_services_iplatformservice_cs_devicetype_20["DeviceType"]
+    class flow_type_nexusreader_application_abstractions_services_iplatformservice_cs_displayorientation_28["DisplayOrientation"]
+    class flow_type_nexusreader_web_client_program_cs_configured_httpclient_40["configured HttpClient"]
+    class flow_type_nexusreader_web_client_program_cs_n_a_55["N/A"]
+    class flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33["NexusAuthenticationStateProvider"]
+    class flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74["ThrowingBookStorageService"]
+    class flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49["ThrowingDbContextFactory"]
+    class flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61["ThrowingDbContextFactory"]
+    class flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84["ThrowingEbookRepository"]
+    class flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66["ThrowingEmbeddingGenerator"]
+    class flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94["ThrowingSyncBroadcaster"]
+    class flow_type_nexusreader_web_client_program_cs_wasmepubreader_56["WasmEpubReader"]
+    class flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38["WasmKnowledgeService"]
+    class flow_type_nexusreader_web_client_program_cs_webplatformservice_18["WebPlatformService"]
+    flow_file_nexusreader_application_abstractions_services_iknowledgeservice_cs_file_1 --> flow_type_nexusreader_application_abstractions_services_iknowledgeservice_cs_groundednessresult_19 : dto GroundednessResult
+    flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1 --> flow_type_nexusreader_application_abstractions_services_iplatformservice_cs_devicecontext_13 : dto DeviceContext
+    flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1 --> flow_type_nexusreader_application_abstractions_services_iplatformservice_cs_devicetype_20 : enum DeviceType
+    flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1 --> flow_type_nexusreader_application_abstractions_services_iplatformservice_cs_displayorientation_28 : enum DisplayOrientation
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 : model ThrowingBookStorageService
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 : model ThrowingDbContextFactory
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 : model ThrowingEbookRepository
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 : model ThrowingEmbeddingGenerator
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 : model ThrowingSyncBroadcaster
+    click flow_file_nexusreader_application_abstractions_services_iknowledgeservice_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_services_iknowledgeservice_cs_groundednessresult_19 href "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:19:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_services_iplatformservice_cs_devicecontext_13 href "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:13:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_services_iplatformservice_cs_devicetype_20 href "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:20:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_services_iplatformservice_cs_displayorientation_28 href "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:28:1" "Open source"
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+```
+
+This class diagram identifies DTOs and platform enums owned by Application abstractions and client-side runtime models substituted in Web.Client. It clarifies contract ownership vs concrete client models.
+
+=== DIAGRAM 6: Program.cs Layer View (dependency-map) ===
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart LR
+    subgraph layer_application["application"]
+        flow_file_nexusreader_application_abstractions_services_iknowledgeservice_cs_file_1["IKnowledgeService"]
+        flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1["IPlatformService"]
+        flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_askquestionasync_15["AskQuestionAsync"]
+        flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_verifygroundednessasync_13["VerifyGroundednessAsync"]
+        flow_type_nexusreader_application_abstractions_services_iknowledgeservice_cs_groundednessresult_19[/"GroundednessResult"/]
+        flow_file_nexusreader_application_abstractions_services_iknowledgeservice_cs_file_1 -->|dto GroundednessResult| flow_type_nexusreader_application_abstractions_services_iknowledgeservice_cs_groundednessresult_19
+    end
+    subgraph layer_frontend["frontend"]
+        flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+        flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+        flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+        flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+        flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+        flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+        flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+        flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+        flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+        flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+        flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+        flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+        flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    end
+    click flow_file_nexusreader_application_abstractions_services_iknowledgeservice_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_services_iknowledgeservice_cs_groundednessresult_19 href "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:19:1" "Open source"
+    click flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_verifygroundednessasync_13 href "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:13:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:1:1" "Open source"
+    click flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_askquestionasync_15 href "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:15:1" "Open source"
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+```
+
+Layer view clarifies boundaries: Application owns domain contracts and DTOs; frontend owns runtime wiring and substitutes server-only implementations with client-safe stubs or WASM-specific services.
+
+=== DIAGRAM 7: Method Flow Details (method-flow) ===
+```mermaid
+flowchart TD
+    subgraph NexusReader_Infrastructure_Helpers_ContentHasher["ContentHasher"]
+    end
+    subgraph NexusReader_Infrastructure_Helpers_JsonRepairHelper["JsonRepairHelper"]
+    end
+    subgraph NexusReader_Infrastructure_RealTime_SyncHub["SyncHub"]
+    end
+    flow_file_nexusreader_infrastructure_helpers_contenthasher_cs_file_1["ContentHasher"]
+    flow_file_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_file_1["JsonRepairHelper"]
+    flow_method_nexusreader_infrastructure_helpers_contenthasher_cs_computehash_9["ComputeHash"]
+    flow_method_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_repair_8["Repair"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28["OnConnectedAsync"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38["OnDisconnectedAsync"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14["SyncHub"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19["UpdateProgress"]
+    flow_action_nexusreader_infrastructure_helpers_contenthasher_cs_computehash_branch_11_11{"Evaluates branch condition"}
+    flow_action_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_repair_guard_clause_10_10{"Guards early exit or rejection path"}
+    flow_action_nexusreader_
+```
+
+This method-flow highlights Infrastructure helpers and the real-time SyncHub lifecycle (connect, disconnect, progress updates) plus utility flows (content hashing, JSON repair). It shows who owns runtime behaviours for syncing and data integrity.
+
+### Key Files
+- NexusReader.Web/Program.cs (server entry)
+- NexusReader.Web.Client/Program.cs (WASM entry)
+- NexusReader.Maui/Program.cs (MAUI entry)
+- NexusReader.Application/DependencyInjection.cs
+- NexusReader.Infrastructure/DependencyInjection.cs
+- NexusReader.Application/Abstractions/Services/IKnowledgeService.cs
+- NexusReader.Infrastructure/RealTime/SyncHub.cs
+- NexusReader.Application/Mappings/MappingConfig.cs
+
+<div hidden data-ai-mermaid-metadata-appendix>
+<script type="application/json" data-ai-mermaid-metadata="0" data-ai-mermaid-diagram-id="dependency_map_graph">{"edges":[{"id":"edge_flow_file_nexusreader_application_abstractions_messaging_iquery_cs_file_1_flow_type_nexusreader_application_abstractions_messaging_iquery_cs_iquery_tresponse_6_defines_type_6","from":"flow_file_nexusreader_application_abstractions_messaging_iquery_cs_file_1","to":"flow_type_nexusreader_application_abstractions_messaging_iquery_cs_iquery_tresponse_6","relation":"transforms","semanticLabel":"interface IQuery<TResponse>","payload":{"outputSummary":"Marker interface representing a CQRS query that returns a Result-wrapped TResponse via 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(update/delete).","expandedLabel":"defines-type"}},{"id":"edge_flow_file_nexusreader_application_abstractions_persistence_iebookrepository_cs_file_1_flow_type_nexusreader_application_abstractions_persistence_iebookrepository_cs_iebookrepository_9_defines_type_9","from":"flow_file_nexusreader_application_abstractions_persistence_iebookrepository_cs_file_1","to":"flow_type_nexusreader_application_abstractions_persistence_iebookrepository_cs_iebookrepository_9","relation":"transforms","semanticLabel":"interface IEbookRepository","payload":{"outputSummary":"Application-layer persistence abstraction for Authors and Ebooks to avoid direct EF Core 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path/URLs.","expandedLabel":"defines-type"}},{"id":"edge_flow_file_nexusreader_application_abstractions_services_iidentityservice_cs_file_1_flow_type_nexusreader_application_abstractions_services_iidentityservice_cs_iidentityservice_6_defines_type_6","from":"flow_file_nexusreader_application_abstractions_services_iidentityservice_cs_file_1","to":"flow_type_nexusreader_application_abstractions_services_iidentityservice_cs_iidentityservice_6","relation":"transforms","semanticLabel":"interface IIdentityService","payload":{"outputSummary":"Application-layer abstraction that specifies authentication/identity operations and a state-invalidated event for 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+</div>
+
+---
+
+## See Also
+
+- [Application Layer: Commands, Queries and DTOs](../domains/application-layer.md)
+- [Data Layer, EF Core and Repositories](../domains/data-and-persistence.md)
+- [Infrastructure Services: Knowledge, AI, Billing, Storage, Epub](../domains/infrastructure-services.md)
+- [Blazor WebAssembly Client: hosting, handlers, and platform services](../flows/web-client-wasm.md)
+- [MAUI Mobile Host: App wiring and platform services](../domains/maui-mobile.md)
+- [Real-Time Sync, SignalR and Broadcast](../flows/realtime-and-sync.md)
+- [Security, Identity and Authorization](../flows/security-identity-auth.md)
+- [Business Overview](../business/business-overview.md)
+- [Top Business Flows](../business/top-business-flows.md)
diff --git a/src/.documentation/collections/overview.meta.json b/src/.documentation/collections/overview.meta.json
new file mode 100644
index 0000000..f60d57d
--- /dev/null
+++ b/src/.documentation/collections/overview.meta.json
@@ -0,0 +1,79764 @@
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+        "nodeRole": "dependency",
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+        "responsibility": "Intended to be called from the composition root (e.g., Web project startup) to wire up application mapping and MediatR handler discovery; exposes Assembly for scanning.",
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+        "id": "flow_file_nexusreader_infrastructure_dependencyinjection_cs_file_1",
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+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Registers and configures infrastructure dependencies: DB contexts, external clients (Qdrant, Neo4j), Hangfire, AI clients/resilience, app services, authorization policies, and related configuration for the NexusReader solution.",
+        "responsibility": "File is the central infra DI composition point: chooses DB provider (Postgres vs Sqlite), configures Hangfire conditionally, registers external AI/vector/graph clients, installs an AI retry pipeline that inspects exception messages for throttling and service errors, warns when AI key is missing, and registers scoped services matching DbContext lifetime to prevent MAUI singleton issues.",
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+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
+        "label": "Program (top-level startup)",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:15:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 15,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 15,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_ai_verifygroundednesscommand_cs_handle_return_20_20",
+        "label": "Returns result",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "return await _knowledgeService.VerifyGroundednessAsync(request.Answer, request.Context, request.TenantId, cancellationToken);",
+        "responsibility": "return await _knowledgeService.VerifyGroundednessAsync(request.Answer, request.Context, request.TenantId, cancellationToken);",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR) handler",
+          "Dependency Injection"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "VerifyGroundednessCommandHandler"
+          },
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Domain",
+            "value": "Groundedness, AI verification, KnowledgeService"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs:20:1",
+            "path": "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+            "line": 20,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+        "sourceLine": 20,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_verifygroundednessasync_13",
+        "label": "VerifyGroundednessAsync",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Assess whether an answer is grounded in provided context and return a scored rationale.",
+        "responsibility": "Assess whether an answer is grounded in provided context and return a scored rationale.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Result-wrapping (FluentResults)"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IKnowledgeService"
+          },
+          {
+            "label": "Signature",
+            "value": "(answer: string, context: string, tenantId: string, cancellationToken: CancellationToken = default) -> Task<Result<GroundednessResult>>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgePacket, Groundedness, Semantic Search"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:13:1",
+            "path": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+            "line": 13,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+        "sourceLine": 13,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1",
+        "label": "IPlatformService",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Defines an application-level platform abstraction for device capabilities (vibration) and a small device info model (DeviceContext) used by UI/client layers to adapt behavior per device.",
+        "responsibility": "Pure abstraction: interface declares vibration operations and a device-context DTO; implementations will be platform-specific (WASM/MAUI/desktop) and are responsible for actual vibration and device info retrieval.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
+          },
+          {
+            "label": "Domain",
+            "value": "Device, Vibration, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:1:1",
+            "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_vibratesuccessasync_7",
+        "label": "VibrateSuccessAsync",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Requests a short platform-specific 'success' vibration; returns a Result indicating success/failure.",
+        "responsibility": "Requests a short platform-specific 'success' vibration; returns a Result indicating success/failure.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
+          },
+          {
+            "label": "Signature",
+            "value": "() -> Task<Result>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "async result @L7"
+          },
+          {
+            "label": "Domain",
+            "value": "Device, Vibration, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:7:1",
+            "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+            "line": 7,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
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+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs"
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+      },
+      {
+        "id": "flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_vibrateerrorasync_8",
+        "label": "VibrateErrorAsync",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Requests a short platform-specific 'error' vibration; returns a Result indicating success/failure.",
+        "responsibility": "Requests a short platform-specific 'error' vibration; returns a Result indicating success/failure.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
+          },
+          {
+            "label": "Signature",
+            "value": "() -> Task<Result>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "async result @L8"
+          },
+          {
+            "label": "Domain",
+            "value": "Device, Vibration, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:8:1",
+            "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+            "line": 8,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "sourceLine": 8,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_vibrateasync_9",
+        "label": "VibrateAsync",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Requests a platform vibration for the specified duration in milliseconds; returns a Result indicating success/failure.",
+        "responsibility": "Requests a platform vibration for the specified duration in milliseconds; returns a Result indicating success/failure.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
+          },
+          {
+            "label": "Signature",
+            "value": "(milliseconds: int) -> Task<Result>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "async result @L9"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "milliseconds @L9"
+          },
+          {
+            "label": "Domain",
+            "value": "Device, Vibration, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:9:1",
+            "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+            "line": 9,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "sourceLine": 9,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_getdevicecontext_10",
+        "label": "GetDeviceContext",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Retrieves current device characteristics (model, manufacturer, type, orientation) wrapped in a Result.",
+        "responsibility": "Retrieves current device characteristics (model, manufacturer, type, orientation) wrapped in a Result.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
+          },
+          {
+            "label": "Signature",
+            "value": "() -> Result<DeviceContext>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "synchronous result @L10"
+          },
+          {
+            "label": "Domain",
+            "value": "Device, Vibration, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:10:1",
+            "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+            "line": 10,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "sourceLine": 10,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_queries_library_asklibraryquestionquery_cs_handle_return_30_30",
+        "label": "Returns result",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "return await _knowledgeService.AskQuestionAsync(",
+        "responsibility": "return await _knowledgeService.AskQuestionAsync(",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR)",
+          "Query Handler",
+          "Dependency Injection"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AskLibraryQuestionQueryHandler"
+          },
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgeService, Library Question, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs:30:1",
+            "path": "NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs",
+            "line": 30,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs",
+        "sourceLine": 30,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_askquestionasync_15",
+        "label": "AskQuestionAsync",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Ask a question in the tenant/optional ebook context and receive a grounded response (with limit for candidate/context size).",
+        "responsibility": "Ask a question in the tenant/optional ebook context and receive a grounded response (with limit for candidate/context size).",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Result-wrapping (FluentResults)"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IKnowledgeService"
+          },
+          {
+            "label": "Signature",
+            "value": "(question: string, tenantId: string, ebookId: Guid? = null, limit: int = 5, cancellationToken: CancellationToken = default) -> Task<Result<GroundedResponseDto>>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgePacket, Groundedness, Semantic Search"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:15:1",
+            "path": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+            "line": 15,
+            "tooltip": "Open source"
+          }
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+        "confidence": "high",
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+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+        "diagramFamily": "control-flow",
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+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Action:mapping",
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+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
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+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "label": "Action",
+            "value": "return"
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+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "line": 71,
+            "tooltip": "Open source"
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+        ],
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
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+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_file_nexusreader_application_abstractions_services_iknowledgeservice_cs_file_1",
+        "label": "IKnowledgeService",
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+        "nodeRole": "service",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Defines the application-level contract for knowledge/AI related operations (semantic search, summarization, groundedness verification, Q&A) used by other layers to interact with AI/knowledge capabilities.",
+        "responsibility": "This file is an abstraction-level interface describing async knowledge/AI operations across tenants and optional ebook scoping; implementations will use FluentResults.Result<T> for outcome modeling and DTOs from the AI DTO namespace.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Result-wrapping (FluentResults)"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IKnowledgeService"
+          },
+          {
+            "label": "Domain",
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+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "line": 1,
+            "tooltip": "Open source"
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+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_abstractions_services_iknowledgeservice_cs_groundednessresult_19",
+        "label": "GroundednessResult",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Represents the result of a groundedness check: score, textual rationale, and a boolean grounded flag.",
+        "responsibility": "Represents the result of a groundedness check: score, textual rationale, and a boolean grounded flag.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Result-wrapping (FluentResults)"
+        ],
+        "detailItems": [
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+            "label": "Owner",
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+          {
+            "label": "Shape",
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+          {
+            "label": "Fields",
+            "value": "3"
+          },
+          {
+            "label": "Score",
+            "value": "float required"
+          },
+          {
+            "label": "Rationale",
+            "value": "string required"
+          },
+          {
+            "label": "IsGrounded",
+            "value": "bool required"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgePacket, Groundedness, Semantic Search"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "tooltip": "Open source"
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+          "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1",
+        "label": "IPlatformService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Defines an application-level platform abstraction for device capabilities (vibration) and a small device info model (DeviceContext) used by UI/client layers to adapt behavior per device.",
+        "responsibility": "Pure abstraction: interface declares vibration operations and a device-context DTO; implementations will be platform-specific (WASM/MAUI/desktop) and are responsible for actual vibration and device info retrieval.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
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+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
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+          {
+            "label": "Domain",
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+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "line": 1,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_abstractions_services_iplatformservice_cs_devicecontext_13",
+        "label": "DeviceContext",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Represents device metadata (model, manufacturer, device type, display orientation) for platform-aware logic.",
+        "responsibility": "Represents device metadata (model, manufacturer, device type, display orientation) for platform-aware logic.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
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+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "Model",
+            "value": "string required"
+          },
+          {
+            "label": "Manufacturer",
+            "value": "string required"
+          },
+          {
+            "label": "DeviceType",
+            "value": "DeviceType required"
+          },
+          {
+            "label": "Orientation",
+            "value": "DisplayOrientation required"
+          },
+          {
+            "label": "Domain",
+            "value": "Device, Vibration, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "line": 13,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourcePath": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "sourceLine": 13,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_abstractions_services_iplatformservice_cs_devicetype_20",
+        "label": "DeviceType",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "enum",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Enumerates device categories used to adapt UI/behavior.",
+        "responsibility": "Enumerates device categories used to adapt UI/behavior.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
+          },
+          {
+            "label": "Shape",
+            "value": "enum"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "Unknown",
+            "value": "DeviceType required"
+          },
+          {
+            "label": "Phone",
+            "value": "DeviceType required"
+          },
+          {
+            "label": "Tablet",
+            "value": "DeviceType required"
+          },
+          {
+            "label": "Desktop",
+            "value": "DeviceType required"
+          },
+          {
+            "label": "Domain",
+            "value": "Device, Vibration, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "line": 20,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "sourceLine": 20,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_abstractions_services_iplatformservice_cs_displayorientation_28",
+        "label": "DisplayOrientation",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "enum",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Enumerates possible screen orientations to allow layout/behavior adjustments.",
+        "responsibility": "Enumerates possible screen orientations to allow layout/behavior adjustments.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
+          },
+          {
+            "label": "Shape",
+            "value": "enum"
+          },
+          {
+            "label": "Fields",
+            "value": "3"
+          },
+          {
+            "label": "Unknown",
+            "value": "DisplayOrientation required"
+          },
+          {
+            "label": "Portrait",
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+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
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+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "value": "NotSupportedException @L63"
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+            "label": "Shape",
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+            "label": "Fields",
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+            "key": "source",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
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+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
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+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Shape",
+            "value": "model"
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+            "label": "Fields",
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+            "value": "Ebook, Author, Embedding"
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
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+            "tooltip": "Open source"
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+        ],
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
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+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
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+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "label": "Shape",
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+            "label": "Fields",
+            "value": "1"
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+            "label": "ErrorMessage",
+            "value": "string required"
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+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "label": "Shape",
+            "value": "model"
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+            "label": "Fields",
+            "value": "1"
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+            "label": "ErrorMessage",
+            "value": "string required"
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+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+          {
+            "key": "source",
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+            "line": 84,
+            "tooltip": "Open source"
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
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+        "label": "ThrowingSyncBroadcaster",
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+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Shape",
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+            "label": "Fields",
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+            "label": "Domain",
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+          {
+            "key": "source",
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+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
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+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Domain",
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+        ],
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+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
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+      {
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+        "architecturalLayer": "backend",
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+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "label": "Domain",
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+        ],
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+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
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+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Domain",
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+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Shape",
+            "value": "model"
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+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_application_abstractions_services_iknowledgeservice_cs_file_1",
+        "label": "IKnowledgeService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Defines the application-level contract for knowledge/AI related operations (semantic search, summarization, groundedness verification, Q&A) used by other layers to interact with AI/knowledge capabilities.",
+        "responsibility": "This file is an abstraction-level interface describing async knowledge/AI operations across tenants and optional ebook scoping; implementations will use FluentResults.Result<T> for outcome modeling and DTOs from the AI DTO namespace.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Result-wrapping (FluentResults)"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IKnowledgeService"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgePacket, Groundedness, Semantic Search"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:1:1",
+            "path": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourcePath": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_abstractions_services_iknowledgeservice_cs_groundednessresult_19",
+        "label": "GroundednessResult",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Represents the result of a groundedness check: score, textual rationale, and a boolean grounded flag.",
+        "responsibility": "Represents the result of a groundedness check: score, textual rationale, and a boolean grounded flag.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Result-wrapping (FluentResults)"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IKnowledgeService"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "3"
+          },
+          {
+            "label": "Score",
+            "value": "float required"
+          },
+          {
+            "label": "Rationale",
+            "value": "string required"
+          },
+          {
+            "label": "IsGrounded",
+            "value": "bool required"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgePacket, Groundedness, Semantic Search"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:19:1",
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+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+        "sourceLine": 19,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_verifygroundednessasync_13",
+        "label": "VerifyGroundednessAsync",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Assess whether an answer is grounded in provided context and return a scored rationale.",
+        "responsibility": "Assess whether an answer is grounded in provided context and return a scored rationale.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Result-wrapping (FluentResults)"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IKnowledgeService"
+          },
+          {
+            "label": "Signature",
+            "value": "(answer: string, context: string, tenantId: string, cancellationToken: CancellationToken = default) -> Task<Result<GroundednessResult>>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgePacket, Groundedness, Semantic Search"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:13:1",
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+            "line": 13,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+        "sourceLine": 13,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1",
+        "label": "IPlatformService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Defines an application-level platform abstraction for device capabilities (vibration) and a small device info model (DeviceContext) used by UI/client layers to adapt behavior per device.",
+        "responsibility": "Pure abstraction: interface declares vibration operations and a device-context DTO; implementations will be platform-specific (WASM/MAUI/desktop) and are responsible for actual vibration and device info retrieval.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
+          },
+          {
+            "label": "Domain",
+            "value": "Device, Vibration, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:1:1",
+            "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_askquestionasync_15",
+        "label": "AskQuestionAsync",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Ask a question in the tenant/optional ebook context and receive a grounded response (with limit for candidate/context size).",
+        "responsibility": "Ask a question in the tenant/optional ebook context and receive a grounded response (with limit for candidate/context size).",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Result-wrapping (FluentResults)"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IKnowledgeService"
+          },
+          {
+            "label": "Signature",
+            "value": "(question: string, tenantId: string, ebookId: Guid? = null, limit: int = 5, cancellationToken: CancellationToken = default) -> Task<Result<GroundedResponseDto>>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgePacket, Groundedness, Semantic Search"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:15:1",
+            "path": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+            "line": 15,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+        "sourceLine": 15,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_getknowledgeinternalasync_guard_clause_83_83",
+        "label": "Guards early exit or rejection path",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (string.IsNullOrWhiteSpace(text)) return Result.Fail(\"Input text is empty.\");",
+        "responsibility": "if (string.IsNullOrWhiteSpace(text)) return Result.Fail(\"Input text is empty.\");",
+        "technologyHints": [
+          "csharp",
+          "Cache-Aside",
+          "Deduplicating concurrent requests (ConcurrentDictionary + Lazy<Task>)",
+          "Retry/Resilience (Polly ResiliencePipeline)",
+          "RAG (retrieval-augmented generation) with vector DB + graph expansion"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "KnowledgeService"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "string.IsNullOrWhiteSpace(text)) return Result.Fail(\"Input text is empty.\""
+          },
+          {
+            "label": "Outcomes",
+            "value": "exit, continue"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgeUnit, KnowledgeUnitLink, Knowledge graph expansion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/KnowledgeService.cs:83:1",
+            "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+            "line": 83,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "sourceLine": 83,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_helpers_contenthasher_cs_file_1",
+        "label": "ContentHasher",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Static utility class providing content normalization and hashing helpers.",
+        "responsibility": "Static utility class providing content normalization and hashing helpers.",
+        "technologyHints": [
+          "csharp",
+          "Utility",
+          "Hashing"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "ContentHasher"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "content normalization, deterministic hashing"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/ContentHasher.cs:1:1",
+            "path": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/ContentHasher.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_helpers_contenthasher_cs_computehash_9",
+        "label": "ComputeHash",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Normalizes input text, computes a SHA-256 hash of the UTF-8 bytes, and returns the lowercase hex string.",
+        "responsibility": "Normalizes input text, computes a SHA-256 hash of the UTF-8 bytes, and returns the lowercase hex string.",
+        "technologyHints": [
+          "csharp",
+          "Utility",
+          "Hashing"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "ContentHasher"
+          },
+          {
+            "label": "Signature",
+            "value": "(input: string) -> string"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L11"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Rejects empty/whitespace input @L11"
+          },
+          {
+            "label": "Action:return",
+            "value": "Returns result @L13"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Normalizes input before hashing @L16"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Encodes normalized input to UTF-8 bytes @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Computes SHA-256 hash @L19"
+          },
+          {
+            "label": "Domain",
+            "value": "content normalization, deterministic hashing"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/ContentHasher.cs:9:1",
+            "path": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+            "line": 9,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+        "sourceLine": 9,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/ContentHasher.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_executeairequestandcacheasync_guard_clause_167_167",
+        "label": "Guards early exit or rejection path",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (string.IsNullOrWhiteSpace(rawResponse)) return Result.Fail(\"AI returned an empty response.\");",
+        "responsibility": "if (string.IsNullOrWhiteSpace(rawResponse)) return Result.Fail(\"AI returned an empty response.\");",
+        "technologyHints": [
+          "csharp",
+          "Cache-Aside",
+          "Deduplicating concurrent requests (ConcurrentDictionary + Lazy<Task>)",
+          "Retry/Resilience (Polly ResiliencePipeline)",
+          "RAG (retrieval-augmented generation) with vector DB + graph expansion"
+        ],
+        "detailItems": [
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+            "label": "Owner",
+            "value": "KnowledgeService"
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+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "string.IsNullOrWhiteSpace(rawResponse)) return Result.Fail(\"AI returned an empty response.\""
+          },
+          {
+            "label": "Outcomes",
+            "value": "exit, continue"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgeUnit, KnowledgeUnitLink, Knowledge graph expansion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/KnowledgeService.cs:167:1",
+            "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+            "line": 167,
+            "tooltip": "Open source"
+          }
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+        "sourcePath": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
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+        "sourceTargetKind": "step",
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+          "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_file_1",
+        "label": "JsonRepairHelper",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Static helper class encapsulating JSON repair utility logic used by infrastructure code.",
+        "responsibility": "Static helper class encapsulating JSON repair utility logic used by infrastructure code.",
+        "technologyHints": [
+          "csharp",
+          "Helper",
+          "Stack-based balancing algorithm",
+          "Defensive input sanitization"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "JsonRepairHelper"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs:1:1",
+            "path": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_repair_8",
+        "label": "Repair",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Detects truncated/garbled JSON, prunes trailing garbage, and auto-closes open strings/brackets/braces to return a best-effort valid JSON string.",
+        "responsibility": "Detects truncated/garbled JSON, prunes trailing garbage, and auto-closes open strings/brackets/braces to return a best-effort valid JSON string.",
+        "technologyHints": [
+          "csharp",
+          "Helper",
+          "Stack-based balancing algorithm",
+          "Defensive input sanitization"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "JsonRepairHelper"
+          },
+          {
+            "label": "Signature",
+            "value": "(json: string) -> string"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Guards early exit or rejection path @L10"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Rejects empty input @L10"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Trim input @L11"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Check for definite truncation @L14"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Find last likely clean delimiter @L18"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs:8:1",
+            "path": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+            "line": 8,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+        "sourceLine": 8,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_askquestionasync_repository_read_717_717",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "3. For every statement or claim you make in your answer, you must cite the specific source IDs (e.g., source chunk ID or hash) from the context.",
+        "responsibility": "3. For every statement or claim you make in your answer, you must cite the specific source IDs (e.g., source chunk ID or hash) from the context.",
+        "technologyHints": [
+          "csharp",
+          "Cache-Aside",
+          "Deduplicating concurrent requests (ConcurrentDictionary + Lazy<Task>)",
+          "Retry/Resilience (Polly ResiliencePipeline)",
+          "RAG (retrieval-augmented generation) with vector DB + graph expansion"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "KnowledgeService"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgeUnit, KnowledgeUnitLink, Knowledge graph expansion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/KnowledgeService.cs:717:1",
+            "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+            "line": 717,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "sourceLine": 717,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_helpers_contenthasher_cs_computehash_branch_11_11",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (string.IsNullOrWhiteSpace(input))",
+        "responsibility": "if (string.IsNullOrWhiteSpace(input))",
+        "technologyHints": [
+          "csharp",
+          "Utility",
+          "Hashing"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "ContentHasher"
+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "string.IsNullOrWhiteSpace(input)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "content normalization, deterministic hashing"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/ContentHasher.cs:11:1",
+            "path": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+            "line": 11,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+        "sourceLine": 11,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/ContentHasher.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_repair_guard_clause_10_10",
+        "label": "Guards early exit or rejection path",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (string.IsNullOrWhiteSpace(json)) return json;",
+        "responsibility": "if (string.IsNullOrWhiteSpace(json)) return json;",
+        "technologyHints": [
+          "csharp",
+          "Helper",
+          "Stack-based balancing algorithm",
+          "Defensive input sanitization"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "JsonRepairHelper"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "string.IsNullOrWhiteSpace(json)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "exit, continue"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs:10:1",
+            "path": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+            "line": 10,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+        "sourceLine": 10,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
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+        },
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+          "source": "type-reference"
+        },
+        {
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+        },
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+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Abstractions/Persistence/IEbookRepository.cs",
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+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Application/Abstractions/Services/IBillingService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Application/Abstractions/Services/IBookStorageService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Application/Abstractions/Services/IIdentityService.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
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+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Application/Abstractions/Services/INativeStorageService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
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+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Commands/Library/IngestEbookRequest.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
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+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
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+          "path": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/DTOs/User/AuthorDto.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/DTOs/User/SubscriptionPlanDto.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/DTOs/User/UserProfileDto.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
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+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
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+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQueryHandler.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Queries/Library/GetMyEbooksQuery.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
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+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Queries/Reader/GetReaderPageQueryHandler.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Queries/System/GetInitializationStatusQuery.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Queries/System/GetInitializationStatusQueryHandler.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Queries/User/GetUserProfileQuery.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Queries/User/GetUserProfileQueryHandler.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
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+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Infrastructure/Services/BillingService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Web.Client/Program.cs",
+          "reason": "Selected as an entrypoint anchor for this flow scope",
+          "source": "entrypoint"
+        },
+        {
+          "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Application/Abstractions/Services/IEpubMetadataExtractor.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Application/Abstractions/Services/IEpubReader.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Application/Common/AppJsonContext.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Application/Constants/PlanConstants.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Application/Constants/StorageKeys.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Application/DependencyInjection.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Application/DTOs/AI/KnowledgePacket.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/DTOs/AI/RelevantContext.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Queries/Graph/GraphViewModels.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Queries/Quiz/QuizViewModels.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Queries/Reader/LocalEpubMetadata.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Application/Queries/Reader/ViewModels.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Domain/Entities/Author.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Domain/Entities/Ebook.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Domain/Entities/KnowledgeUnit.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Domain/Entities/KnowledgeUnitLink.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Domain/Entities/NexusUser.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Domain/Entities/QuizResult.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Domain/Entities/SemanticKnowledgeCache.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Domain/Entities/SubscriptionPlan.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Domain/Enums/KnowledgeUnitType.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Infrastructure/Services/PromptRegistry.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Maui/MauiProgram.cs",
+          "reason": "Selected as an entrypoint anchor for this flow scope",
+          "source": "entrypoint"
+        },
+        {
+          "path": "NexusReader.Maui/Platforms/Android/MainApplication.cs",
+          "reason": "Included because it belongs to the resolved document scope",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.Maui/Services/MauiStorageService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.UI.Shared/Services/FocusModeService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.UI.Shared/Services/IdentityService.cs",
+          "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+          "source": "type-reference"
+        },
+        {
+          "path": "NexusReader.UI.Shared/Services/IFocusModeService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.UI.Shared/Services/IKnowledgeGraphService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.UI.Shared/Services/IQuizStateService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.UI.Shared/Services/IReaderInteractionService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.UI.Shared/Services/IReaderNavigationService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.UI.Shared/Services/ISyncService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.UI.Shared/Services/IThemeService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
+          "path": "NexusReader.UI.Shared/Services/KnowledgeGraphService.cs",
+          "reason": "Included because it likely participates in the core orchestration path",
+          "source": "scope"
+        },
+        {
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+              "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
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+          "kind": "action",
+          "filePath": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
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+              "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
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+          "kind": "action",
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+          "role": "integration-client",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
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+          "kind": "action",
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+          "kind": "action",
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+          "role": "integration-client",
+          "layer": "frontend",
+          "kind": "action",
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+          "kind": "action",
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+          "kind": "method",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
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+          "kind": "action",
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+          "role": "startup",
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+          "role": "startup",
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+          "kind": "action",
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+          "role": "startup",
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+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_361_361",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_364_364",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_402_402",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_406_406",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_419_419",
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+          "role": "startup",
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+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_424_424",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_439_439",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
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+          "label": "Reads repository or persistence state",
+          "role": "startup",
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+          "kind": "action",
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+          "layer": "application",
+          "kind": "action",
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+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_460_460",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "kind": "action",
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+          "role": "startup",
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+          "kind": "action",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_473_473",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_480_480",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
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+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_486_486",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_501_501",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "label": "Repeats work over a collection or condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_510_510",
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+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidenceReferences": [
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+          ]
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_512_512",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_log_516_516",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_517_517",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 517
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_529_529",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 529,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 529
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_532_532",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 532,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 532
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_536_536",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 536,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 536
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_545_545",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 545,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 545
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_550_550",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 550,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_551_551",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 551,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 551
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_554_554",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 554
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_554_554",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 554,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 554
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_556_556",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 556,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 556
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14",
+          "label": "SyncHub",
+          "role": "endpoint",
+          "layer": "infrastructure",
+          "kind": "method",
+          "filePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 14,
+          "evidencePaths": [
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "line": 14
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_startupvalidation_scope_check_165",
+          "label": "StartupValidation (scope check)",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 165,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 165
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_startupvalidation_scope_check_branch_169_169",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 169,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 169
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_startupvalidation_scope_check_guard_clause_169_169",
+          "label": "Fail if infrastructure missing",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 169,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 169
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_startupvalidation_scope_check_validation_171_171",
+          "label": "Validates input or state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 171,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 171
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_ensuredatabaseinitialized_175",
+          "label": "EnsureDatabaseInitialized",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 175,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 175
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_loop_186_186",
+          "label": "Repeats work over a collection or condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 186,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 186
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_branch_190_190",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 190,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 190
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_branch_198_198",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 198,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 198
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_branch_206_206",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 206,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
+              "line": 206
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_206_206",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 206,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 206
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_208_208",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 208,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 208
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_branch_216_216",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 216,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 216
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_216_216",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 216,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 216
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_218_218",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 218,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 218
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_get_api_epub_ebookid_index_249",
+          "label": "GET /api/epub/{ebookId}/{index}",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 249,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 249
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_guard_clause_252_252",
+          "label": "Extracts userId from ClaimsPrincipal",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
+              "line": 252
+            }
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+        },
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+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_repository_read_252_252",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 252
+            }
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+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_guard_clause_255_255",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          ]
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_branch_255_255",
+          "label": "Return Ok on success, BadRequest on failure",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          ],
+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
+              "line": 255
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_return_258_258",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
+              "line": 258
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+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_265",
+          "label": "KnowledgeApi POST /api/knowledge/ (GetKnowledge)",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 265
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_repository_read_267_267",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 267,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 267
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_guard_clause_267_267",
+          "label": "Resolve tenantId from claims with default",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 267,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 267
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_guard_clause_269_269",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 269,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 269
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_branch_269_269",
+          "label": "Return Ok or BadRequest based on result.IsSuccess",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 269,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 269
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_return_270_270",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 270,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
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+          "role": "startup",
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+          "role": "startup",
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+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
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+          "layer": "application",
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+          "layer": "application",
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+          "layer": "application",
+          "kind": "action",
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+          "layer": "application",
+          "kind": "action",
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+          "kind": "action",
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+          "role": "startup",
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+          "layer": "application",
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+          "role": "startup",
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+          "kind": "action",
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+          "kind": "type",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "label": "Returns result",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "layer": "frontend",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "label": "firstRender check",
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+          "kind": "action",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+              "path": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "id": "flow_action_nexusreader_ui_shared_components_molecules_aiassistantbubble_razor_fetchandstreamasync_branch_106_106",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "id": "flow_action_nexusreader_ui_shared_components_molecules_aiassistantbubble_razor_fetchandstreamasync_return_114_114",
+          "label": "Returns result",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "layer": "frontend",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "layer": "frontend",
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+          "kind": "action",
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+          "role": "ui-component",
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+          "layer": "frontend",
+          "kind": "method",
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+          "filePath": "NexusReader.UI.Shared/Components/Molecules/IntelligenceToolbar.razor",
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+          "kind": "method",
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+          "kind": "file",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
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+          "id": "flow_method_nexusreader_ui_shared_components_molecules_knowledgecheck_razor_selectoptionasync_68",
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+          "layer": "frontend",
+          "kind": "method",
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+          "layer": "frontend",
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+          "role": "ui-component",
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+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/KnowledgeCheck.razor",
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+          "layer": "frontend",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/KnowledgeCheck.razor",
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+          "layer": "frontend",
+          "kind": "action",
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+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/KnowledgeCheck.razor",
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+          "layer": "frontend",
+          "kind": "action",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+          "label": "Conditional render: Book present vs empty-state",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+          "id": "flow_action_nexusreader_ui_shared_components_organisms_currentreadingwidget_razor_render_branch_29_29",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+          "id": "flow_action_nexusreader_ui_shared_components_organisms_currentreadingwidget_razor_render_fallback_35_35",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+          "label": "HandleContinueReading",
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+          "kind": "method",
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+          "label": "Evaluates branch condition",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
+              "line": 74
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+          "id": "flow_action_nexusreader_ui_shared_components_organisms_currentreadingwidget_razor_handlecontinuereading_guard_clause_74_74",
+          "label": "Guard: require Book",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
+              "line": 74
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+          "role": "dto",
+          "layer": "frontend",
+          "kind": "type",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
+              "line": 70
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+          "id": "flow_file_nexusreader_ui_shared_components_organisms_globalintelligencepanel_razor_file_1",
+          "label": "GlobalIntelligencePanel",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "file",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+          "label": "Evaluates branch condition",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+          "id": "flow_action_nexusreader_ui_shared_components_organisms_globalintelligencepanel_razor_render_component_markup_fallback_21_21",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "sourcePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+          "id": "flow_action_nexusreader_ui_shared_components_organisms_globalintelligencepanel_razor_render_component_markup_loop_23_23",
+          "label": "Iterate Results",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "kind": "action",
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+          "layer": "frontend",
+          "kind": "method",
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+          "id": "flow_file_nexusreader_ui_shared_components_organisms_bookingestionmodal_razor_file_1",
+          "label": "BookIngestionModal",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "file",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
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+          "layer": "frontend",
+          "kind": "action",
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+          "role": "ui-component",
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+          "kind": "action",
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+          "layer": "frontend",
+          "kind": "action",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 388
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_intelligence_razor_handlekeyup_400",
+          "label": "HandleKeyUp",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 400,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 400
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_intelligence_razor_handlekeyup_branch_402_402",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 402,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 402
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_intelligence_razor_handlekeyup_guard_clause_402_402",
+          "label": "Triggers only on Enter + non-empty question + not loading",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 402,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 402
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_intelligence_razor_askquestionasync_408",
+          "label": "AskQuestionAsync",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 408,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 408
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_intelligence_razor_askquestionasync_guard_clause_410_410",
+          "label": "Guards early exit or rejection path",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 410,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 410
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_intelligence_razor_askquestionasync_branch_420_420",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 420,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 420
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_intelligence_razor_askquestionasync_branch_426_426",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 426,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 426
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_intelligence_razor_askquestionasync_fallback_430_430",
+          "label": "Falls back to alternate path",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 430,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 430
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_intelligence_razor_askquestionasync_repository_read_434_434",
+          "label": "Reads repository or persistence state",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 434,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 434
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_intelligence_razor_askquestionasync_fallback_441_441",
+          "label": "Construct error response on exception",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 441,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 441
+            }
+          ]
+        },
+        {
+          "id": "flow_file_nexusreader_ui_shared_pages_library_razor_file_1",
+          "label": "Library",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "file",
+          "filePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourceLine": 1,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Library.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Library.razor",
+              "line": 1
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_library_razor_onafterrenderasync_511",
+          "label": "OnAfterRenderAsync",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourceLine": 511,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Library.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Library.razor",
+              "line": 511
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_library_razor_onafterrenderasync_branch_513_513",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourceLine": 513,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Library.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Library.razor",
+              "line": 513
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_library_razor_onafterrenderasync_guard_clause_513_513",
+          "label": "Run only on first render",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourceLine": 513,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Library.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Library.razor",
+              "line": 513
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_library_razor_loadbooksasync_519",
+          "label": "LoadBooksAsync",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Library.razor",
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+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Library.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Library.razor",
+              "line": 519
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_library_razor_loadbooksasync_branch_532_532",
+          "label": "Browser-specific fallback",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourceLine": 532,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Library.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Library.razor",
+              "line": 532
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_library_razor_refreshlibrary_543",
+          "label": "RefreshLibrary",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourceLine": 543,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Library.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Library.razor",
+              "line": 543
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_library_razor_openbook_549",
+          "label": "OpenBook",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourceLine": 549,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Library.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Library.razor",
+              "line": 549
+            }
+          ]
+        },
+        {
+          "id": "flow_file_nexusreader_ui_shared_pages_home_razor_file_1",
+          "label": "Home",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "file",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 1,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 1
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_home_razor_oninitialized_30",
+          "label": "OnInitialized",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 30,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 30
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_home_razor_onparameterssetasync_36",
+          "label": "OnParametersSetAsync",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
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+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 36,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 36
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_onparameterssetasync_branch_40_40",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 40,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 40
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_onparameterssetasync_guard_clause_40_40",
+          "label": "Parse 'chapter' query param",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 40,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 40
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_onparameterssetasync_branch_45_45",
+          "label": "Decide book selection path",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 45,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 45
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_onparameterssetasync_branch_47_47",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 47,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 47
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_onparameterssetasync_branch_52_52",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 52,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 52
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_onparameterssetasync_fallback_52_52",
+          "label": "Falls back to alternate path",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 52,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 52
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_onparameterssetasync_branch_56_56",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 56,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 56
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_home_razor_onafterrenderasync_63",
+          "label": "OnAfterRenderAsync",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 63,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 63
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_onafterrenderasync_branch_65_65",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
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+          "evidencePaths": [
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 65
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_home_razor_onfocuskeypressed_77",
+          "label": "OnFocusKeypressed",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 77,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 77
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_home_razor_handlenodeselected_84",
+          "label": "HandleNodeSelected",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
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+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
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+          "evidencePaths": [
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 84
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_handlenodeselected_branch_86_86",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 86,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 86
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_handlenodeselected_guard_clause_86_86",
+          "label": "Only scroll if readerCanvas reference exists",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
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+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 86
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_home_razor_handlequizrequestedasync_92",
+          "label": "HandleQuizRequestedAsync",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
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+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 92
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_home_razor_handleupdate_98",
+          "label": "HandleUpdate",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
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+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
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+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 98
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_home_razor_disposeasync_100",
+          "label": "DisposeAsync",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
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+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
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+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 100
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_disposeasync_branch_105_105",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
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+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 105
+            }
+          ]
+        },
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+          "id": "flow_file_nexusreader_web_appsettings_development_json_file_1",
+          "label": "appsettings.Development.json",
+          "role": "config",
+          "layer": "infrastructure",
+          "kind": "file",
+          "filePath": "NexusReader.Web/appsettings.Development.json",
+          "sourcePath": "NexusReader.Web/appsettings.Development.json",
+          "sourceLine": 1,
+          "evidencePaths": [
+            "NexusReader.Web/appsettings.Development.json"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/appsettings.Development.json",
+              "line": 1
+            }
+          ]
+        },
+        {
+          "id": "flow_file_nexusreader_web_appsettings_json_file_1",
+          "label": "appsettings.json",
+          "role": "config",
+          "layer": "application",
+          "kind": "file",
+          "filePath": "NexusReader.Web/appsettings.json",
+          "sourcePath": "NexusReader.Web/appsettings.json",
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+            "NexusReader.Web/appsettings.json"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/appsettings.json",
+              "line": 1
+            }
+          ]
+        },
+        {
+          "id": "flow_type_nexusreader_web_appsettings_json_stripe_2",
+          "label": "Stripe",
+          "role": "dto",
+          "layer": "application",
+          "kind": "type",
+          "filePath": "NexusReader.Web/appsettings.json",
+          "sourcePath": "NexusReader.Web/appsettings.json",
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+          "evidencePaths": [
+            "NexusReader.Web/appsettings.json"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/appsettings.json",
+              "line": 2
+            }
+          ]
+        },
+        {
+          "id": "flow_type_nexusreader_web_appsettings_json_logging_9",
+          "label": "Logging",
+          "role": "dto",
+          "layer": "application",
+          "kind": "type",
+          "filePath": "NexusReader.Web/appsettings.json",
+          "sourcePath": "NexusReader.Web/appsettings.json",
+          "sourceLine": 9,
+          "evidencePaths": [
+            "NexusReader.Web/appsettings.json"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/appsettings.json",
+              "line": 9
+            }
+          ]
+        },
+        {
+          "id": "flow_type_nexusreader_web_appsettings_json_allowedhosts_15",
+          "label": "AllowedHosts",
+          "role": "unknown",
+          "layer": "application",
+          "kind": "type",
+          "filePath": "NexusReader.Web/appsettings.json",
+          "sourcePath": "NexusReader.Web/appsettings.json",
+          "sourceLine": 15,
+          "evidencePaths": [
+            "NexusReader.Web/appsettings.json"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/appsettings.json",
+              "line": 15
+            }
+          ]
+        },
+        {
+          "id": "flow_type_nexusreader_web_appsettings_json_connectionstrings_16",
+          "label": "ConnectionStrings",
+          "role": "dto",
+          "layer": "application",
+          "kind": "type",
+          "filePath": "NexusReader.Web/appsettings.json",
+          "sourcePath": "NexusReader.Web/appsettings.json",
+          "sourceLine": 16,
+          "evidencePaths": [
+            "NexusReader.Web/appsettings.json"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/appsettings.json",
+              "line": 16
+            }
+          ]
+        },
+        {
+          "id": "flow_type_nexusreader_web_appsettings_json_authentication_google_20",
+          "label": "Authentication.Google",
+          "role": "dto",
+          "layer": "application",
+          "kind": "type",
+          "filePath": "NexusReader.Web/appsettings.json",
+          "sourcePath": "NexusReader.Web/appsettings.json",
+          "sourceLine": 20,
+          "evidencePaths": [
+            "NexusReader.Web/appsettings.json"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/appsettings.json",
+              "line": 20
+            }
+          ]
+        },
+        {
+          "id": "flow_type_nexusreader_web_appsettings_json_ai_google_26",
+          "label": "Ai.Google",
+          "role": "dto",
+          "layer": "application",
+          "kind": "type",
+          "filePath": "NexusReader.Web/appsettings.json",
+          "sourcePath": "NexusReader.Web/appsettings.json",
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+          "evidencePaths": [
+            "NexusReader.Web/appsettings.json"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/appsettings.json",
+              "line": 26
+            }
+          ]
+        },
+        {
+          "id": "flow_type_nexusreader_web_appsettings_json_apibaseurl_34",
+          "label": "ApiBaseUrl",
+          "role": "unknown",
+          "layer": "application",
+          "kind": "type",
+          "filePath": "NexusReader.Web/appsettings.json",
+          "sourcePath": "NexusReader.Web/appsettings.json",
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+          "evidencePaths": [
+            "NexusReader.Web/appsettings.json"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/appsettings.json",
+              "line": 34
+            }
+          ]
+        },
+        {
+          "id": "flow_file_nexusreader_web_components_imports_razor_file_1",
+          "label": "_Imports.razor",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "file",
+          "filePath": "NexusReader.Web/Components/_Imports.razor",
+          "sourcePath": "NexusReader.Web/Components/_Imports.razor",
+          "sourceLine": 1,
+          "evidencePaths": [
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+              "path": "NexusReader.Web/Components/_Imports.razor",
+              "line": 1
+            }
+          ]
+        },
+        {
+          "id": "flow_file_nexusreader_ui_shared_routes_razor_file_1",
+          "label": "Routes",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "file",
+          "filePath": "NexusReader.UI.Shared/Routes.razor",
+          "sourcePath": "NexusReader.UI.Shared/Routes.razor",
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+              "path": "NexusReader.UI.Shared/Routes.razor",
+              "line": 1
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_routes_razor_render_component_markup_1",
+          "label": "Render (component markup)",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Routes.razor",
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+          "sourceLine": 1,
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+              "path": "NexusReader.UI.Shared/Routes.razor",
+              "line": 1
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_routes_razor_render_component_markup_fallback_12_12",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Routes.razor",
+          "sourcePath": "NexusReader.UI.Shared/Routes.razor",
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+          "evidenceReferences": [
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+              "path": "NexusReader.UI.Shared/Routes.razor",
+              "line": 12
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_routes_razor_retry_button_onclick_anonymous_lambda_30",
+          "label": "Retry button onclick (anonymous lambda)",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Routes.razor",
+          "sourcePath": "NexusReader.UI.Shared/Routes.razor",
+          "sourceLine": 30,
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+              "path": "NexusReader.UI.Shared/Routes.razor",
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_routes_razor_retry_button_onclick_anonymous_lambda_retry_30_30",
+          "label": "Recover UI after error",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "sourcePath": "NexusReader.UI.Shared/Routes.razor",
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+              "path": "NexusReader.UI.Shared/Routes.razor",
+              "line": 30
+            }
+          ]
+        },
+        {
+          "id": "flow_file_nexusreader_web_components_error_razor_file_1",
+          "label": "Error",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "file",
+          "filePath": "NexusReader.Web/Components/Error.razor",
+          "sourcePath": "NexusReader.Web/Components/Error.razor",
+          "sourceLine": 1,
+          "evidencePaths": [
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+          ],
+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Components/Error.razor",
+              "line": 1
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_components_error_razor_render_markup_11",
+          "label": "Render (markup)",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Components/Error.razor",
+          "sourcePath": "NexusReader.Web/Components/Error.razor",
+          "sourceLine": 11,
+          "evidencePaths": [
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+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Components/Error.razor",
+              "line": 11
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_components_error_razor_render_markup_branch_13_13",
+          "label": "Conditional technical details",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Components/Error.razor",
+          "sourcePath": "NexusReader.Web/Components/Error.razor",
+          "sourceLine": 13,
+          "evidencePaths": [
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+          ],
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+              "path": "NexusReader.Web/Components/Error.razor",
+              "line": 13
+            }
+          ]
+        },
+        {
+          "id": "flow_file_nexusreader_web_properties_launchsettings_json_file_1",
+          "label": "launchSettings.json",
+          "role": "startup",
+          "layer": "application",
+          "kind": "file",
+          "filePath": "NexusReader.Web/Properties/launchSettings.json",
+          "sourcePath": "NexusReader.Web/Properties/launchSettings.json",
+          "sourceLine": 1,
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+              "path": "NexusReader.Web/Properties/launchSettings.json",
+              "line": 1
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_properties_launchsettings_json_http_4",
+          "label": "http",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Properties/launchSettings.json",
+          "sourcePath": "NexusReader.Web/Properties/launchSettings.json",
+          "sourceLine": 4,
+          "evidencePaths": [
+            "NexusReader.Web/Properties/launchSettings.json"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Properties/launchSettings.json",
+              "line": 4
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_properties_launchsettings_json_https_14",
+          "label": "https",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Properties/launchSettings.json",
+          "sourcePath": "NexusReader.Web/Properties/launchSettings.json",
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+          "evidencePaths": [
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+          ],
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+              "path": "NexusReader.Web/Properties/launchSettings.json",
+              "line": 14
+            }
+          ]
+        },
+        {
+          "id": "flow_file_nexusreader_web_components_app_razor_file_1",
+          "label": "App.razor",
+          "role": "program-entry",
+          "layer": "frontend",
+          "kind": "file",
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+          "sourceLine": 1,
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+              "path": "NexusReader.Web/Components/App.razor",
+              "line": 1
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_components_app_razor_hidepreloader_26",
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+          "role": "program-entry",
+          "layer": "frontend",
+          "kind": "method",
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+          "sourcePath": "NexusReader.Web/Components/App.razor",
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+          ],
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+              "path": "NexusReader.Web/Components/App.razor",
+              "line": 26
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_components_app_razor_hidepreloader_guard_clause_27_27",
+          "label": "Checks preloader element exists",
+          "role": "program-entry",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Components/App.razor",
+          "sourcePath": "NexusReader.Web/Components/App.razor",
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+              "path": "NexusReader.Web/Components/App.razor",
+              "line": 27
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_components_app_razor_hidepreloader_branch_28_28",
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+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Components/App.razor",
+          "sourcePath": "NexusReader.Web/Components/App.razor",
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+              "path": "NexusReader.Web/Components/App.razor",
+              "line": 28
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_components_app_razor_anonymous_startup_iife_25",
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+          "layer": "frontend",
+          "kind": "method",
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+          ]
+        },
+        {
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+          "layer": "frontend",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Components/App.razor",
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_components_app_razor_anonymous_startup_iife_branch_35_35",
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+          "role": "program-entry",
+          "layer": "frontend",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Components/App.razor",
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_components_app_razor_anonymous_startup_iife_fallback_37_37",
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+          "role": "program-entry",
+          "layer": "frontend",
+          "kind": "action",
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_components_app_razor_anonymous_startup_iife_fallback_42_42",
+          "label": "Fallback timer to hide preloader after 3s",
+          "role": "program-entry",
+          "layer": "frontend",
+          "kind": "action",
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+              "path": "NexusReader.Web/Components/App.razor",
+              "line": 42
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_components_app_razor_bootblazorruntimeandrenderroot_23",
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+          "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+          "NexusReader.Application/Commands/Library/IngestEbookRequest.cs",
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+          "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+          "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+          "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs",
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+          "NexusReader.Application/DTOs/User/AuthorDto.cs",
+          "NexusReader.Application/DTOs/User/SubscriptionPlanDto.cs",
+          "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+          "NexusReader.Application/DTOs/User/UserProfileDto.cs",
+          "NexusReader.Application/Constants/PlanConstants.cs",
+          "NexusReader.Application/Mappings/MappingConfig.cs",
+          "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQueryHandler.cs",
+          "NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs",
+          "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+          "NexusReader.Application/Queries/Reader/GetReaderPageQueryHandler.cs",
+          "NexusReader.Application/Queries/System/GetInitializationStatusQuery.cs",
+          "NexusReader.Application/Queries/Library/GetMyEbooksQuery.cs",
+          "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+          "NexusReader.Application/Queries/System/GetInitializationStatusQueryHandler.cs",
+          "NexusReader.Application/Queries/User/GetUserProfileQuery.cs",
+          "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+          "NexusReader.Application/Queries/User/GetUserProfileQueryHandler.cs",
+          "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+        ]
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/src/.documentation/debug/business/business-overview.views.debug.json b/src/.documentation/debug/business/business-overview.views.debug.json
new file mode 100644
index 0000000..547a007
--- /dev/null
+++ b/src/.documentation/debug/business/business-overview.views.debug.json
@@ -0,0 +1,7932 @@
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+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
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+        "actionKind": "loop",
+        "line": 132,
+        "promoted": true,
+        "promotionReason": "Promoted because primary-visible action loop should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "attachedFromNodeId": "flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_loop_126_126",
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+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
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+        "promoted": true,
+        "promotionReason": "Promoted because action return affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "attachedFromNodeId": "flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_loop_132_132",
+        "attachedEdgeId": "edge_flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_loop_132_132_flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_return_139_139_returns_139",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "clonehttprequestmessageasync_return_139_3",
+        "filePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
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+        "promoted": true,
+        "promotionReason": "Promoted because action return affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "attachedFromNodeId": "flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_return_139_139",
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+        "includedInFlowIds": []
+      },
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+        "filePath": "NexusReader.UI.Shared/Pages/Account/Login.razor",
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_pages_account_login_razor_oninitialized_branch_112_112",
+        "attachedFromNodeId": "flow_method_nexusreader_ui_shared_pages_account_login_razor_oninitialized_110",
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+      },
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+        "filePath": "NexusReader.UI.Shared/Pages/Account/Login.razor",
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+        "promotionReason": "Promoted because action guard-clause affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Pages/Account/Login.razor",
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+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Pages/Account/Login.razor",
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+      },
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+        "filePath": "NexusReader.UI.Shared/Pages/Account/Login.razor",
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+        "promoted": false,
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+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Pages/Account/Login.razor",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Pages/Account/Login.razor",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "handlelogin_branch_134_0",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Login.razor",
+        "methodName": "HandleLogin",
+        "actionKind": "branch",
+        "line": 134,
+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_pages_account_login_razor_handlelogin_branch_134_134",
+        "attachedFromNodeId": "flow_method_nexusreader_ui_shared_pages_account_login_razor_handlelogin_126",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "branch_134",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Login.razor",
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+        "promoted": true,
+        "promotionReason": "Promoted because action branch affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_pages_account_login_razor_handlelogin_branch_134_134",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "handlelogin_fallback_139_1",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Login.razor",
+        "methodName": "HandleLogin",
+        "actionKind": "fallback",
+        "line": 139,
+        "promoted": true,
+        "promotionReason": "Promoted because primary-visible action fallback should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_pages_account_login_razor_handlelogin_fallback_139_139",
+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_pages_account_login_razor_handlelogin_branch_134_134",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "handlelogin_repository-read_141_2",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Login.razor",
+        "methodName": "HandleLogin",
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+        "line": 141,
+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action repository-read should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_pages_account_login_razor_handlelogin_repository_read_141_141",
+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_pages_account_login_razor_handlelogin_fallback_139_139",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "error-path_144",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Login.razor",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+      },
+      {
+        "actionId": "navigation_154",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Login.razor",
+        "methodName": "HandleGoogleLogin",
+        "actionKind": "mapping",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
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+        "promoted": true,
+        "promotionReason": "Promoted because action branch affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_pages_account_profile_razor_oninitializedasync_branch_114_114",
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+      },
+      {
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+      },
+      {
+        "actionId": "calculateprogress_guard-clause_123_0",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
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+        "line": 123,
+        "promoted": true,
+        "promotionReason": "Promoted because primary-visible action guard-clause should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_pages_account_profile_razor_calculateprogress_guard_clause_123_123",
+        "attachedFromNodeId": "flow_method_nexusreader_ui_shared_pages_account_profile_razor_calculateprogress_121",
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+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
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+        "actionKind": "guard-clause",
+        "line": 123,
+        "promoted": true,
+        "promotionReason": "Promoted because action guard-clause affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_pages_account_profile_razor_calculateprogress_guard_clause_123_123",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "computation_124",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+        "methodName": "CalculateProgress",
+        "actionKind": "mapping",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "clamp_125",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+        "methodName": "CalculateProgress",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "calculateprogress_return_125_1",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+        "methodName": "CalculateProgress",
+        "actionKind": "return",
+        "line": 125,
+        "promoted": true,
+        "promotionReason": "Promoted because action return affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_pages_account_profile_razor_calculateprogress_return_125_125",
+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_pages_account_profile_razor_calculateprogress_guard_clause_123_123",
+        "attachedEdgeId": "edge_flow_action_nexusreader_ui_shared_pages_account_profile_razor_calculateprogress_guard_clause_123_123_flow_action_nexusreader_ui_shared_pages_account_profile_razor_calculateprogress_return_125_125_returns_125",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "external-call_135",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+        "methodName": "HandleLogout",
+        "actionKind": "external-call",
+        "line": 135,
+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "ui-binding_23",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Register.razor",
+        "methodName": "HandleRegister",
+        "actionKind": "mapping",
+        "line": 23,
+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "state-change_86",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Register.razor",
+        "methodName": "HandleRegister",
+        "actionKind": "mapping",
+        "line": 86,
+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "state-change_87",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Register.razor",
+        "methodName": "HandleRegister",
+        "actionKind": "mapping",
+        "line": 87,
+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "try-catch_89",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Register.razor",
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+        "actionKind": "mapping",
+        "line": 89,
+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "handleregister_branch_92_0",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Register.razor",
+        "methodName": "HandleRegister",
+        "actionKind": "branch",
+        "line": 92,
+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_pages_account_register_razor_handleregister_branch_92_92",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "branch_92",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Register.razor",
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+        "line": 92,
+        "promoted": true,
+        "promotionReason": "Promoted because action branch affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_pages_account_register_razor_handleregister_branch_92_92",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "handleregister_branch_95_1",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Register.razor",
+        "methodName": "HandleRegister",
+        "actionKind": "branch",
+        "line": 95,
+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_pages_account_register_razor_handleregister_branch_95_95",
+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_pages_account_register_razor_handleregister_branch_92_92",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "branch_95",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Register.razor",
+        "methodName": "HandleRegister",
+        "actionKind": "branch",
+        "line": 95,
+        "promoted": true,
+        "promotionReason": "Promoted because action branch affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_pages_account_register_razor_handleregister_branch_95_95",
+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_pages_account_register_razor_handleregister_branch_95_95",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "external-call_98",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Register.razor",
+        "methodName": "HandleRegister",
+        "actionKind": "external-call",
+        "line": 98,
+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "handleregister_fallback_100_2",
+        "filePath": "NexusReader.UI.Shared/Pages/Account/Register.razor",
+        "methodName": "HandleRegister",
+        "actionKind": "fallback",
+        "line": 100,
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diff --git a/src/.documentation/debug/business/top-business-flows.views.debug.json b/src/.documentation/debug/business/top-business-flows.views.debug.json
new file mode 100644
index 0000000..2c1dd33
--- /dev/null
+++ b/src/.documentation/debug/business/top-business-flows.views.debug.json
@@ -0,0 +1,7932 @@
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+}
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diff --git a/src/.documentation/debug/collections/overview.views.debug.json b/src/.documentation/debug/collections/overview.views.debug.json
new file mode 100644
index 0000000..ce2e3c7
--- /dev/null
+++ b/src/.documentation/debug/collections/overview.views.debug.json
@@ -0,0 +1,22777 @@
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action repository-read should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+      {
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+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action repository-read should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_infrastructure_services_billingservice_cs_handlesubscriptiondeletedasync_repository_read_90_90",
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+        "includedInFlowIds": []
+      },
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+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+      {
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_infrastructure_services_billingservice_cs_handlesubscriptiondeletedasync_branch_91_91",
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+      },
+      {
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action notification should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "attachedFromNodeId": "flow_method_nexusreader_ui_shared_services_readerinteractionservice_cs_notifynodeselected_10",
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+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Services/ReaderInteractionService.cs",
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+      },
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+      },
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+        "includedInFlowIds": []
+      },
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+        "filePath": "NexusReader.UI.Shared/Services/ReaderInteractionService.cs",
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+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Services/ReaderInteractionService.cs",
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+      },
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+        "promotionReason": "Promoted because action guard-clause affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+      },
+      {
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "event-publish_22",
+        "filePath": "NexusReader.UI.Shared/Services/ReaderInteractionService.cs",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+      },
+      {
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+        "promotionReason": "Promoted because action guard-clause affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Services/ReaderInteractionService.cs",
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+        "actionKind": "notification",
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action notification should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "notifytextselected_branch_27_1",
+        "filePath": "NexusReader.UI.Shared/Services/ReaderInteractionService.cs",
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+        "actionKind": "branch",
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Services/ReaderInteractionService.cs",
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+      },
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "state-mutation_25",
+        "filePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "methodName": "ClearCache",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+      },
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+        "filePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "methodName": "ClearCache",
+        "actionKind": "notification",
+        "line": 26,
+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action notification should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_clearcache_notification_26_26",
+        "attachedFromNodeId": "flow_method_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_clearcache_23",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "try-catch_33",
+        "filePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "methodName": "GetAuthenticationStateAsync",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+      },
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+        "filePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
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+        "actionKind": "guard-clause",
+        "line": 35,
+        "promoted": true,
+        "promotionReason": "Promoted because primary-visible action guard-clause should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_guard_clause_35_35",
+        "attachedFromNodeId": "flow_method_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_31",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "guard-clause_35",
+        "filePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
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+        "promoted": true,
+        "promotionReason": "Promoted because action guard-clause affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "getauthenticationstateasync_branch_41_1",
+        "filePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
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+        "actionKind": "branch",
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_branch_41_41",
+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_guard_clause_35_35",
+        "attachedEdgeId": "edge_flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_guard_clause_35_35_flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_branch_41_41_evaluates-condition_41",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "branch_41",
+        "filePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "methodName": "GetAuthenticationStateAsync",
+        "actionKind": "branch",
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+        "promoted": true,
+        "promotionReason": "Promoted because action branch affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_branch_41_41",
+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_branch_41_41",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "getauthenticationstateasync_branch_47_2",
+        "filePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "methodName": "GetAuthenticationStateAsync",
+        "actionKind": "branch",
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_branch_47_47",
+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_branch_41_41",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "guard-clause_47",
+        "filePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
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+        "promoted": true,
+        "promotionReason": "Promoted because action guard-clause affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "getauthenticationstateasync_return_54_3",
+        "filePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "methodName": "GetAuthenticationStateAsync",
+        "actionKind": "return",
+        "line": 54,
+        "promoted": true,
+        "promotionReason": "Promoted because action return affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_return_54_54",
+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_guard_clause_47_47",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "branch_58",
+        "filePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "methodName": "GetAuthenticationStateAsync",
+        "actionKind": "branch",
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+        "promoted": true,
+        "promotionReason": "Promoted because action branch affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_return_54_54",
+        "attachedEdgeId": "edge_flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_return_54_54_flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_branch_58_58_evaluates-condition_58",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "getauthenticationstateasync_branch_60_4",
+        "filePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
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+        "actionKind": "branch",
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_branch_60_60",
+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_branch_58_58",
+        "attachedEdgeId": "edge_flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_branch_58_58_flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_branch_60_60_evaluates-condition_60",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "getauthenticationstateasync_return_69_5",
+        "filePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
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+        "promoted": true,
+        "promotionReason": "Promoted because action return affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_return_69_69",
+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_branch_60_60",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "return_76",
+        "filePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "methodName": "GetAuthenticationStateAsync",
+        "actionKind": "return",
+        "line": 76,
+        "promoted": true,
+        "promotionReason": "Promoted because action return affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "promotionReason": "Promoted because primary-visible action guard-clause should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+      {
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+      {
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+      {
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+      {
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+      {
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+        "promoted": true,
+        "promotionReason": "Promoted because action branch affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "ui-layout_6",
+        "filePath": "NexusReader.Maui/Main.razor",
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+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+        "promoted": true,
+        "promotionReason": "Promoted because primary-visible action fallback should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+      },
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+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "attachedFromNodeId": "flow_method_nexusreader_ui_shared_components_organisms_globalintelligencepanel_razor_render_component_markup_5",
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+      },
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+        "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+        "promoted": true,
+        "promotionReason": "Promoted because action branch affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "includedInFlowIds": []
+      },
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+        "actionId": "render_component_markup_branch_21_1",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+        "actionKind": "branch",
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_components_organisms_globalintelligencepanel_razor_render_component_markup_branch_14_14",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "render_component_markup_fallback_21_2",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+        "promoted": true,
+        "promotionReason": "Promoted because primary-visible action fallback should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_components_organisms_globalintelligencepanel_razor_render_component_markup_branch_21_21",
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+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+        "promoted": true,
+        "promotionReason": "Promoted because action branch affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+        "promoted": true,
+        "promotionReason": "Promoted because action loop affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
+        "methodName": "Render (component markup)",
+        "actionKind": "loop",
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+        "promoted": true,
+        "promotionReason": "Promoted because primary-visible action loop should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_components_organisms_globalintelligencepanel_razor_render_component_markup_loop_23_23",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "calculation_27",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+        "actionKind": "branch",
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_components_organisms_globalintelligencepanel_razor_render_component_markup_loop_23_23",
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+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+        "promoted": true,
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+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+        "actionKind": "branch",
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_components_organisms_globalintelligencepanel_razor_render_component_markup_branch_39_39",
+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+        "actionKind": "fallback",
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+        "promoted": true,
+        "promotionReason": "Promoted because primary-visible action fallback should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_components_organisms_globalintelligencepanel_razor_render_component_markup_branch_39_39",
+        "attachedEdgeId": "edge_flow_action_nexusreader_ui_shared_components_organisms_globalintelligencepanel_razor_render_component_markup_branch_39_39_flow_action_nexusreader_ui_shared_components_organisms_globalintelligencepanel_razor_render_component_markup_fallback_39_39_falls-back_39",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "state-change_58",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
+        "methodName": "HandleSearch",
+        "actionKind": "mapping",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "event-invoke_59",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
+        "methodName": "HandleSearch",
+        "actionKind": "mapping",
+        "line": 59,
+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "state-change_130",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
+        "methodName": "CloseModal",
+        "actionKind": "mapping",
+        "line": 130,
+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "call_131",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
+        "methodName": "CloseModal",
+        "actionKind": "mapping",
+        "line": 131,
+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "invoke-callback_132",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
+        "methodName": "CloseModal",
+        "actionKind": "mapping",
+        "line": 132,
+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "state-change_151",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
+        "methodName": "HandleFileSelected",
+        "actionKind": "mapping",
+        "line": 151,
+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "handlefileselected_guard-clause_154_0",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
+        "methodName": "HandleFileSelected",
+        "actionKind": "guard-clause",
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+        "promoted": true,
+        "promotionReason": "Promoted because primary-visible action guard-clause should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_components_organisms_bookingestionmodal_razor_handlefileselected_guard_clause_154_154",
+        "attachedFromNodeId": "flow_method_nexusreader_ui_shared_components_organisms_bookingestionmodal_razor_handlefileselected_149",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "guard-clause_154",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
+        "methodName": "HandleFileSelected",
+        "actionKind": "guard-clause",
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+        "promoted": true,
+        "promotionReason": "Promoted because action guard-clause affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_components_organisms_bookingestionmodal_razor_handlefileselected_guard_clause_154_154",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "handlefileselected_branch_156_1",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
+        "methodName": "HandleFileSelected",
+        "actionKind": "branch",
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_components_organisms_bookingestionmodal_razor_handlefileselected_branch_156_156",
+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_components_organisms_bookingestionmodal_razor_handlefileselected_guard_clause_154_154",
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+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
+        "methodName": "HandleFileSelected",
+        "actionKind": "guard-clause",
+        "line": 156,
+        "promoted": true,
+        "promotionReason": "Promoted because action guard-clause affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "attachedEdgeId": "edge_flow_action_nexusreader_ui_shared_components_organisms_bookingestionmodal_razor_handlefileselected_branch_156_156_flow_action_nexusreader_ui_shared_components_organisms_bookingestionmodal_razor_handlefileselected_guard_clause_156_156_evaluates-condition_156",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "handlefileselected_return_159_2",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
+        "methodName": "HandleFileSelected",
+        "actionKind": "return",
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+        "promoted": true,
+        "promotionReason": "Promoted because action return affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+      },
+      {
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+        "includedInFlowIds": []
+      },
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+        "includedInFlowIds": []
+      },
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+      },
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+        "includedInFlowIds": []
+      },
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+      },
+      {
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+      },
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+      },
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+      {
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+        "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+        "includedInFlowIds": []
+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
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+        "promoted": true,
+        "promotionReason": "Promoted because action return affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "event-subscription_43",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/KnowledgeGraph.razor",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+      },
+      {
+        "actionId": "handlegraphupdate_guard-clause_51_0",
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+        "promoted": true,
+        "promotionReason": "Promoted because primary-visible action guard-clause should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+      },
+      {
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+        "filePath": "NexusReader.UI.Shared/Components/Organisms/KnowledgeGraph.razor",
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+        "promoted": true,
+        "promotionReason": "Promoted because action guard-clause affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "branch_53",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/KnowledgeGraph.razor",
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+        "promoted": true,
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "handlegraphupdate_branch_53_1",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/KnowledgeGraph.razor",
+        "methodName": "HandleGraphUpdate",
+        "actionKind": "branch",
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_components_organisms_knowledgegraph_razor_handlegraphupdate_branch_53_53",
+        "attachedFromNodeId": "flow_action_nexusreader_ui_shared_components_organisms_knowledgegraph_razor_handlegraphupdate_branch_53_53",
+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "external-call_55",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/KnowledgeGraph.razor",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+      },
+      {
+        "actionId": "handlegraphupdate_fallback_57_2",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/KnowledgeGraph.razor",
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+        "promoted": true,
+        "promotionReason": "Promoted because primary-visible action fallback should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+        "promotedNodeId": "flow_action_nexusreader_ui_shared_components_organisms_knowledgegraph_razor_handlegraphupdate_fallback_57_57",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "ui-refresh_62",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/KnowledgeGraph.razor",
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+        "promoted": false,
+        "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+      },
+      {
+        "actionId": "handleactivenodechange_guard-clause_67_0",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/KnowledgeGraph.razor",
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+        "actionKind": "guard-clause",
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+        "promoted": true,
+        "promotionReason": "Promoted because primary-visible action guard-clause should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "includedInFlowIds": []
+      },
+      {
+        "actionId": "guard-clause_67",
+        "filePath": "NexusReader.UI.Shared/Components/Organisms/KnowledgeGraph.razor",
+        "methodName": "HandleActiveNodeChange",
+        "actionKind": "guard-clause",
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+}
\ No newline at end of file
diff --git a/src/.documentation/debug/domains/application-layer.views.debug.json b/src/.documentation/debug/domains/application-layer.views.debug.json
new file mode 100644
index 0000000..02d04a3
--- /dev/null
+++ b/src/.documentation/debug/domains/application-layer.views.debug.json
@@ -0,0 +1,8122 @@
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+        "promoted": true,
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diff --git a/src/.documentation/debug/domains/data-and-persistence.views.debug.json b/src/.documentation/debug/domains/data-and-persistence.views.debug.json
new file mode 100644
index 0000000..80410cf
--- /dev/null
+++ b/src/.documentation/debug/domains/data-and-persistence.views.debug.json
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new file mode 100644
index 0000000..4f2dbf1
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action repository-read should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "promoted": true,
+        "promotionReason": "Promoted because secondary-visible action log should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+      },
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+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+      },
+      {
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+      },
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+        "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "promoted": true,
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+        "promotionReason": "Promoted because secondary-visible action log should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        "includedInFlowIds": []
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+}
\ No newline at end of file
diff --git a/src/.documentation/debug/domains/maui-mobile.views.debug.json b/src/.documentation/debug/domains/maui-mobile.views.debug.json
new file mode 100644
index 0000000..cfcd197
--- /dev/null
+++ b/src/.documentation/debug/domains/maui-mobile.views.debug.json
@@ -0,0 +1,10150 @@
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+}
\ No newline at end of file
diff --git a/src/.documentation/debug/flows/realtime-and-sync.views.debug.json b/src/.documentation/debug/flows/realtime-and-sync.views.debug.json
new file mode 100644
index 0000000..33c586c
--- /dev/null
+++ b/src/.documentation/debug/flows/realtime-and-sync.views.debug.json
@@ -0,0 +1,1140 @@
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diff --git a/src/.documentation/debug/flows/security-identity-auth.views.debug.json b/src/.documentation/debug/flows/security-identity-auth.views.debug.json
new file mode 100644
index 0000000..8dfbee0
--- /dev/null
+++ b/src/.documentation/debug/flows/security-identity-auth.views.debug.json
@@ -0,0 +1,1864 @@
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diff --git a/src/.documentation/debug/flows/web-client-wasm.views.debug.json b/src/.documentation/debug/flows/web-client-wasm.views.debug.json
new file mode 100644
index 0000000..0305f97
--- /dev/null
+++ b/src/.documentation/debug/flows/web-client-wasm.views.debug.json
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diff --git a/src/.documentation/debug/planning.debug.json b/src/.documentation/debug/planning.debug.json
new file mode 100644
index 0000000..50f8472
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+      "frontend": 38,
+      "generated-noise": 9,
+      "service": 53,
+      "startup": 2
+    },
+    "missingHighValueFamilies": [
+      "controller",
+      "api",
+      "admin"
+    ]
+  },
+  "orientation": {
+    "projectArchetype": "web-application",
+    "candidateEntrypoints": [
+      {
+        "path": "NexusReader.Maui/MauiProgram.cs",
+        "role": "program-entry",
+        "reason": "Detected as a visible runtime entrypoint",
+        "score": 22,
+        "confidence": 0.98,
+        "evidence": [
+          "Matched program-entry heuristics",
+          "Returned by existing entrypoint extractor",
+          "Startup/program naming pattern"
+        ]
+      },
+      {
+        "path": "NexusReader.Web.Client/Program.cs",
+        "role": "program-entry",
+        "reason": "Detected as a visible runtime entrypoint",
+        "score": 22,
+        "confidence": 0.98,
+        "evidence": [
+          "Matched program-entry heuristics",
+          "Returned by existing entrypoint extractor",
+          "Startup/program naming pattern"
+        ]
+      },
+      {
+        "path": "NexusReader.Web/Program.cs",
+        "role": "program-entry",
+        "reason": "Detected as a visible runtime entrypoint",
+        "score": 22,
+        "confidence": 0.98,
+        "evidence": [
+          "Matched program-entry heuristics",
+          "Returned by existing entrypoint extractor",
+          "Startup/program naming pattern"
+        ]
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+        "role": "unknown",
+        "reason": "Entrypoint heuristic matched for nexusreader.application/abstractions/messaging/icommand.cs",
+        "score": 6,
+        "confidence": 0.75,
+        "evidence": [
+          "Matched unknown heuristics"
+        ]
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+        "role": "unknown",
+        "reason": "Entrypoint heuristic matched for nexusreader.application/abstractions/messaging/icommandhandler.cs",
+        "score": 6,
+        "confidence": 0.75,
+        "evidence": [
+          "Matched unknown heuristics"
+        ]
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+        "role": "unknown",
+        "reason": "Entrypoint heuristic matched for nexusreader.application/abstractions/messaging/iquery.cs",
+        "score": 6,
+        "confidence": 0.75,
+        "evidence": [
+          "Matched unknown heuristics"
+        ]
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/IQueryHandler.cs",
+        "role": "unknown",
+        "reason": "Entrypoint heuristic matched for nexusreader.application/abstractions/messaging/iqueryhandler.cs",
+        "score": 6,
+        "confidence": 0.75,
+        "evidence": [
+          "Matched unknown heuristics"
+        ]
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Persistence/IEbookRepository.cs",
+        "role": "unknown",
+        "reason": "Entrypoint heuristic matched for nexusreader.application/abstractions/persistence/iebookrepository.cs",
+        "score": 6,
+        "confidence": 0.75,
+        "evidence": [
+          "Matched unknown heuristics"
+        ]
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IBillingService.cs",
+        "role": "unknown",
+        "reason": "Entrypoint heuristic matched for nexusreader.application/abstractions/services/ibillingservice.cs",
+        "score": 6,
+        "confidence": 0.75,
+        "evidence": [
+          "Matched unknown heuristics"
+        ]
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IBookStorageService.cs",
+        "role": "unknown",
+        "reason": "Entrypoint heuristic matched for nexusreader.application/abstractions/services/ibookstorageservice.cs",
+        "score": 6,
+        "confidence": 0.75,
+        "evidence": [
+          "Matched unknown heuristics"
+        ]
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IIdentityService.cs",
+        "role": "unknown",
+        "reason": "Entrypoint heuristic matched for nexusreader.application/abstractions/services/iidentityservice.cs",
+        "score": 6,
+        "confidence": 0.75,
+        "evidence": [
+          "Matched unknown heuristics"
+        ]
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+        "role": "unknown",
+        "reason": "Entrypoint heuristic matched for nexusreader.application/abstractions/services/iknowledgeservice.cs",
+        "score": 6,
+        "confidence": 0.75,
+        "evidence": [
+          "Matched unknown heuristics"
+        ]
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/INativeStorageService.cs",
+        "role": "unknown",
+        "reason": "Entrypoint heuristic matched for nexusreader.application/abstractions/services/inativestorageservice.cs",
+        "score": 6,
+        "confidence": 0.75,
+        "evidence": [
+          "Matched unknown heuristics"
+        ]
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "role": "unknown",
+        "reason": "Entrypoint heuristic matched for nexusreader.application/abstractions/services/iplatformservice.cs",
+        "score": 6,
+        "confidence": 0.75,
+        "evidence": [
+          "Matched unknown heuristics"
+        ]
+      },
+      {
+        "path": "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+        "role": "unknown",
+        "reason": "Entrypoint heuristic matched for nexusreader.application/commands/ai/verifygroundednesscommand.cs",
+        "score": 6,
+        "confidence": 0.75,
+        "evidence": [
+          "Matched unknown heuristics"
+        ]
+      },
+      {
+        "path": "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+        "role": "unknown",
+        "reason": "Entrypoint heuristic matched for nexusreader.application/commands/library/ingestebookcommand.cs",
+        "score": 6,
+        "confidence": 0.75,
+        "evidence": [
+          "Matched unknown heuristics"
+        ]
+      },
+      {
+        "path": "NexusReader.Application/Commands/Library/IngestEbookCommandHandler.cs",
+        "role": "unknown",
+        "reason": "Entrypoint heuristic matched for nexusreader.application/commands/library/ingestebookcommandhandler.cs",
+        "score": 6,
+        "confidence": 0.75,
+        "evidence": [
+          "Matched unknown heuristics"
+        ]
+      },
+      {
+        "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs",
+        "role": "unknown",
+        "reason": "Entrypoint heuristic matched for nexusreader.application/commands/quiz/submitanswercommand.cs",
+        "score": 6,
+        "confidence": 0.75,
+        "evidence": [
+          "Matched unknown heuristics"
+        ]
+      },
+      {
+        "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+        "role": "unknown",
+        "reason": "Entrypoint heuristic matched for nexusreader.application/commands/quiz/submitanswercommandhandler.cs",
+        "score": 6,
+        "confidence": 0.75,
+        "evidence": [
+          "Matched unknown heuristics"
+        ]
+      },
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "role": "unknown",
+        "reason": "Entrypoint heuristic matched for nexusreader.application/commands/sync/updatereadingprogresscommand.cs",
+        "score": 6,
+        "confidence": 0.75,
+        "evidence": [
+          "Matched unknown heuristics"
+        ]
+      }
+    ],
+    "runtimeSurfaces": [
+      {
+        "id": "runtime-startup",
+        "kind": "startup",
+        "label": "Startup and composition root",
+        "filePaths": [
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Web/Program.cs"
+        ],
+        "confidence": 0.92,
+        "evidence": [
+          "Detected program/startup/bootstrap surfaces"
+        ]
+      }
+    ],
+    "dominantDomains": [
+      {
+        "name": "auth",
+        "filePaths": [
+          "NexusReader.Application/DTOs/User/AuthorDto.cs",
+          "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+          "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+          "NexusReader.Domain/Entities/Author.cs",
+          "NexusReader.UI.Shared/Layout/AuthLayout.razor",
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ],
+        "confidence": 0.6000000000000001
+      },
+      {
+        "name": "account",
+        "filePaths": [
+          "NexusReader.UI.Shared/Pages/Account/Login.razor",
+          "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+          "NexusReader.UI.Shared/Pages/Account/Register.razor"
+        ],
+        "confidence": 0.5
+      }
+    ],
+    "evidence": [
+      "Detected technology dotnet",
+      "Program.cs found"
+    ],
+    "suppressedEvidence": {
+      "count": 9,
+      "samplePaths": [
+        "NexusReader.UI.Shared/wwwroot/exampleJsInterop.js",
+        "NexusReader.UI.Shared/wwwroot/js/auth.js",
+        "NexusReader.UI.Shared/wwwroot/js/focusInterop.js",
+        "NexusReader.UI.Shared/wwwroot/js/knowledgeGraph.js",
+        "NexusReader.UI.Shared/wwwroot/js/layoutResizer.js",
+        "NexusReader.UI.Shared/wwwroot/js/readerObserver.js",
+        "NexusReader.UI.Shared/wwwroot/js/selectionHandler.js",
+        "NexusReader.Web.Client/wwwroot/js/focusInterop.js",
+        "NexusReader.Web.Client/wwwroot/js/knowledgeGraph.js"
+      ],
+      "reasons": [
+        "Generated AiCC metadata is excluded from orientation ranking",
+        "wwwroot and vendor assets are excluded from primary runtime evidence",
+        "Minified and bundled files are excluded from anchor selection"
+      ]
+    }
+  },
+  "collections": [
+    {
+      "id": "collections:collections",
+      "kind": "collections",
+      "title": "Collections",
+      "relativePath": "collections",
+      "sortOrder": 10,
+      "documentFilenames": [
+        "overview.md"
+      ]
+    },
+    {
+      "id": "business:business",
+      "kind": "business",
+      "title": "Business",
+      "relativePath": "business",
+      "sortOrder": 15,
+      "documentFilenames": [
+        "business-overview.md",
+        "top-business-flows.md"
+      ]
+    },
+    {
+      "id": "domains:domains",
+      "kind": "domains",
+      "title": "Domains",
+      "relativePath": "domains",
+      "sortOrder": 30,
+      "documentFilenames": [
+        "application-layer.md",
+        "maui-mobile.md",
+        "data-and-persistence.md",
+        "infrastructure-services.md"
+      ]
+    },
+    {
+      "id": "flows:flows",
+      "kind": "flows",
+      "title": "Flows",
+      "relativePath": "flows",
+      "sortOrder": 70,
+      "documentFilenames": [
+        "security-identity-auth.md",
+        "web-client-wasm.md",
+        "realtime-and-sync.md"
+      ]
+    }
+  ],
+  "documents": [
+    {
+      "filename": "overview.md",
+      "title": "Project Overview and Architecture",
+      "kind": "overview",
+      "relativeOutputPath": "collections/overview.md",
+      "collectionId": "collections:collections",
+      "collectionKind": "collections",
+      "publicationTier": "primary",
+      "resolvedFileCount": 186,
+      "contextBag": {
+        "id": "overview_md",
+        "bagType": "auth",
+        "title": "Project Overview and Architecture context bag",
+        "anchorFiles": [
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web/Program.cs"
+        ],
+        "includedFiles": [
+          {
+            "path": "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/IQueryHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Persistence/IEbookRepository.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Services/IBillingService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Services/IBookStorageService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Services/IIdentityService.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Services/INativeStorageService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Commands/Library/IngestEbookCommandHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Commands/Library/IngestEbookRequest.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/DTOs/User/AuthorDto.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/DTOs/User/SubscriptionPlanDto.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/DTOs/User/UserProfileDto.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Mappings/MappingConfig.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQueryHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Library/GetMyEbooksQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Reader/GetReaderPageQueryHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/System/GetInitializationStatusQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/System/GetInitializationStatusQueryHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/User/GetUserProfileQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/User/GetUserProfileQueryHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Services/BillingService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Program.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Services/IEpubMetadataExtractor.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Services/IEpubReader.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Common/AppJsonContext.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Constants/PlanConstants.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Constants/StorageKeys.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/DependencyInjection.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/DTOs/AI/KnowledgePacket.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/DTOs/AI/RelevantContext.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Graph/GraphViewModels.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Quiz/QuizViewModels.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Reader/LocalEpubMetadata.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Reader/ViewModels.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Domain/Entities/Author.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Domain/Entities/Ebook.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Domain/Entities/KnowledgeUnit.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Domain/Entities/KnowledgeUnitLink.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Domain/Entities/NexusUser.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Domain/Entities/QuizResult.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Domain/Entities/SemanticKnowledgeCache.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Domain/Entities/SubscriptionPlan.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Domain/Enums/KnowledgeUnitType.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Services/PromptRegistry.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Maui/Platforms/Android/MainApplication.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/Services/MauiStorageService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/FocusModeService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/IdentityService.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/IFocusModeService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/IKnowledgeGraphService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/IQuizStateService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/IReaderInteractionService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/IReaderNavigationService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/ISyncService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/IThemeService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/KnowledgeGraphService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/QuizStateService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/ReaderInteractionService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/ReaderNavigationService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/SyncService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/ThemeService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/WebStorageService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web/Program.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Web/Services/NativeStorageService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web/Services/ServerIdentityService.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/NexusReader.Application.csproj",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Domain/NexusReader.Domain.csproj",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Pages/Account/Register.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260428184727_InitialPostgres.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260428184727_InitialPostgres.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260429080302_AddQuizResults.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260429080302_AddQuizResults.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260503175906_FinalNormalizedSubscriptionArchitecture.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260503175906_FinalNormalizedSubscriptionArchitecture.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260510151022_NormalizeAuthor.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260510151022_NormalizeAuthor.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260510171941_AddEbookLastChapterIndex.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260510171941_AddEbookLastChapterIndex.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/AppDbContextModelSnapshot.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/AppDbContext.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/AppDbContextFactory.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/DbInitializer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/Migrations/20260513181743_AddEbookReadyFlag.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/Migrations/20260513181743_AddEbookReadyFlag.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/Migrations/20260513183726_FixKnowledgeUnitEbookId.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/Migrations/20260513183726_FixKnowledgeUnitEbookId.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/Migrations/20260513185108_MakeKnowledgeUnitEbookIdNullable.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/Migrations/20260513185108_MakeKnowledgeUnitEbookIdNullable.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/App.xaml.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/MainPage.xaml.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/Platforms/Android/MainActivity.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Layout/ReconnectModal.razor.js",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/NexusReader.Data.csproj",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/_Imports.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/Main.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/NexusReader.Maui.csproj",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/_Imports.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Components/Atoms/NexusButton.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Components/Atoms/NexusIcon.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Components/Atoms/NexusSearchBox.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Components/Atoms/NexusTypography.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Components/Molecules/IntelligenceToolbar.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Components/Molecules/KnowledgeCheck.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Components/Organisms/KnowledgeGraph.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Components/Organisms/ReaderFooter.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Components/RedirectToLogin.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Layout/AuthLayout.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Layout/MainHubLayout.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Layout/ReaderLayout.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Layout/ReconnectModal.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/NexusReader.UI.Shared.csproj",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Pages/Account/Login.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Pages/Dashboard.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Pages/Home.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Pages/Library.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Pages/NotFound.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Pages/Settings.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Routes.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web/appsettings.Development.json",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web/appsettings.json",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web/Components/_Imports.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web/Components/App.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web/Components/Error.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web/Components/Pages/Error.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web/NexusReader.Web.csproj",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web/Properties/launchSettings.json",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          }
+        ],
+        "relatedDomains": [
+          "auth",
+          "account"
+        ],
+        "relatedEntrypoints": [
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web/Program.cs"
+        ],
+        "confidence": 0.75
+      },
+      "anchorDiagnostics": {
+        "bagType": "auth",
+        "strategy": "entrypoint-first",
+        "confidence": 0.75,
+        "selectedAnchors": [
+          {
+            "path": "NexusReader.Web.Client/Program.cs",
+            "category": "entrypoint",
+            "role": "program-entry",
+            "architectureScore": 14,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "category": "entrypoint",
+            "role": "program-entry",
+            "architectureScore": 8,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Web/Program.cs",
+            "category": "entrypoint",
+            "role": "program-entry",
+            "architectureScore": 8,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          }
+        ],
+        "rejectedAnchors": [
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/IQueryHandler.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Persistence/IEbookRepository.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Services/IBillingService.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Services/IBookStorageService.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Services/IIdentityService.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          }
+        ],
+        "issues": []
+      }
+    },
+    {
+      "filename": "application-layer.md",
+      "title": "Application Layer: Commands, Queries and DTOs",
+      "kind": "domain-model",
+      "relativeOutputPath": "domains/application-layer.md",
+      "collectionId": "domains:domains",
+      "collectionKind": "domains",
+      "publicationTier": "secondary",
+      "resolvedFileCount": 40,
+      "contextBag": {
+        "id": "application_layer_md",
+        "bagType": "startup",
+        "title": "Application Layer: Commands, Queries and DTOs context bag",
+        "anchorFiles": [
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web/Program.cs",
+          "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+        ],
+        "includedFiles": [
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/IQueryHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Commands/Library/IngestEbookCommandHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Commands/Library/IngestEbookRequest.cs",
+            "reason": "Selected as a high-value orchestration anchor within the document scope",
+            "source": "convention"
+          },
+          {
+            "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/DTOs/User/AuthorDto.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/DTOs/User/SubscriptionPlanDto.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/DTOs/User/UserProfileDto.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Mappings/MappingConfig.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQueryHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Library/GetMyEbooksQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Reader/GetReaderPageQueryHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/System/GetInitializationStatusQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/System/GetInitializationStatusQueryHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/User/GetUserProfileQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/User/GetUserProfileQueryHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Web.Client/Program.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Common/AppJsonContext.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/DTOs/AI/KnowledgePacket.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/DTOs/AI/RelevantContext.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Graph/GraphViewModels.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Quiz/QuizViewModels.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Reader/LocalEpubMetadata.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Queries/Reader/ViewModels.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Web/Program.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          }
+        ],
+        "relatedDomains": [
+          "auth"
+        ],
+        "relatedEntrypoints": [
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web/Program.cs"
+        ],
+        "confidence": 0.96
+      },
+      "anchorDiagnostics": {
+        "bagType": "startup",
+        "strategy": "orchestrator-first",
+        "confidence": 0.96,
+        "selectedAnchors": [
+          {
+            "path": "NexusReader.Web.Client/Program.cs",
+            "category": "orchestrator",
+            "role": "program-entry",
+            "architectureScore": 14,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it coordinates runtime phases or orchestration for this scope."
+          },
+          {
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "category": "orchestrator",
+            "role": "program-entry",
+            "architectureScore": 8,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it coordinates runtime phases or orchestration for this scope."
+          },
+          {
+            "path": "NexusReader.Web/Program.cs",
+            "category": "orchestrator",
+            "role": "program-entry",
+            "architectureScore": 8,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it coordinates runtime phases or orchestration for this scope."
+          },
+          {
+            "path": "NexusReader.Application/Commands/Library/IngestEbookRequest.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": true,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          }
+        ],
+        "rejectedAnchors": [
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/IQueryHandler.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Commands/Library/IngestEbookCommandHandler.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          }
+        ],
+        "issues": []
+      }
+    },
+    {
+      "filename": "security-identity-auth.md",
+      "title": "Security, Identity and Authorization",
+      "kind": "security",
+      "relativeOutputPath": "flows/security-identity-auth.md",
+      "collectionId": "flows:flows",
+      "collectionKind": "flows",
+      "publicationTier": "secondary",
+      "resolvedFileCount": 7,
+      "contextBag": {
+        "id": "security_identity_auth_md",
+        "bagType": "auth",
+        "title": "Security, Identity and Authorization context bag",
+        "anchorFiles": [
+          "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+          "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+          "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+        ],
+        "includedFiles": [
+          {
+            "path": "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+            "reason": "Selected as a high-value orchestration anchor within the document scope",
+            "source": "convention"
+          },
+          {
+            "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+            "reason": "Selected as a high-value orchestration anchor within the document scope",
+            "source": "convention"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+            "reason": "Selected as a high-value orchestration anchor within the document scope",
+            "source": "convention"
+          },
+          {
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web/Services/ServerIdentityService.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          }
+        ],
+        "relatedDomains": [
+          "auth"
+        ],
+        "relatedEntrypoints": [],
+        "confidence": 0.75
+      },
+      "anchorDiagnostics": {
+        "bagType": "auth",
+        "strategy": "balanced-high-value",
+        "confidence": 0.75,
+        "selectedAnchors": [
+          {
+            "path": "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+            "category": "high-value-support",
+            "architectureScore": 20,
+            "selected": true,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": true,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": true,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          }
+        ],
+        "rejectedAnchors": [
+          {
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+            "category": "scope-fallback",
+            "architectureScore": 8,
+            "selected": false,
+            "reason": "Only low-signal scope membership was available for this file."
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+            "category": "scope-fallback",
+            "architectureScore": 8,
+            "selected": false,
+            "reason": "Only low-signal scope membership was available for this file."
+          },
+          {
+            "path": "NexusReader.Web/Services/ServerIdentityService.cs",
+            "category": "scope-fallback",
+            "architectureScore": 8,
+            "selected": false,
+            "reason": "Only low-signal scope membership was available for this file."
+          }
+        ],
+        "issues": []
+      }
+    },
+    {
+      "filename": "web-client-wasm.md",
+      "title": "Blazor WebAssembly Client: hosting, handlers, and platform services",
+      "kind": "service",
+      "relativeOutputPath": "flows/web-client-wasm.md",
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+      "collectionKind": "flows",
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+      "resolvedFileCount": 8,
+      "contextBag": {
+        "id": "web_client_wasm_md",
+        "bagType": "auth",
+        "title": "Blazor WebAssembly Client: hosting, handlers, and platform services context bag",
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+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web/Program.cs"
+        ],
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+          {
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
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+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Program.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
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+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
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+          },
+          {
+            "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
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+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Web/Program.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          }
+        ],
+        "relatedDomains": [
+          "auth"
+        ],
+        "relatedEntrypoints": [
+          "NexusReader.Web.Client/Program.cs",
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+      },
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+        "confidence": 0.75,
+        "selectedAnchors": [
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+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Maui/MauiProgram.cs",
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+          },
+          {
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+          }
+        ],
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+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
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+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
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+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+            "category": "high-value-support",
+            "architectureScore": 12,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          }
+        ],
+        "issues": []
+      }
+    },
+    {
+      "filename": "maui-mobile.md",
+      "title": "MAUI Mobile Host: App wiring and platform services",
+      "kind": "service",
+      "relativeOutputPath": "domains/maui-mobile.md",
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+      "collectionKind": "domains",
+      "publicationTier": "secondary",
+      "resolvedFileCount": 20,
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+        "id": "maui_mobile_md",
+        "bagType": "startup",
+        "title": "MAUI Mobile Host: App wiring and platform services context bag",
+        "anchorFiles": [
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web/Program.cs",
+          "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+        ],
+        "includedFiles": [
+          {
+            "path": "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs",
+            "reason": "Selected as a high-value orchestration anchor within the document scope",
+            "source": "convention"
+          },
+          {
+            "path": "NexusReader.Infrastructure.Mobile/Services/MauiStorageService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Program.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure.Mobile/Class1.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Maui/Platforms/Android/MainApplication.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/Services/MauiStorageService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web/Program.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/App.xaml.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/MainPage.xaml.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/Platforms/Android/MainActivity.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/_Imports.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/Main.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/NexusReader.Maui.csproj",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          }
+        ],
+        "relatedDomains": [
+          "auth"
+        ],
+        "relatedEntrypoints": [
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web/Program.cs"
+        ],
+        "confidence": 0.96
+      },
+      "anchorDiagnostics": {
+        "bagType": "startup",
+        "strategy": "orchestrator-first",
+        "confidence": 0.96,
+        "selectedAnchors": [
+          {
+            "path": "NexusReader.Web.Client/Program.cs",
+            "category": "orchestrator",
+            "role": "program-entry",
+            "architectureScore": 14,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it coordinates runtime phases or orchestration for this scope."
+          },
+          {
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "category": "orchestrator",
+            "role": "program-entry",
+            "architectureScore": 8,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it coordinates runtime phases or orchestration for this scope."
+          },
+          {
+            "path": "NexusReader.Web/Program.cs",
+            "category": "orchestrator",
+            "role": "program-entry",
+            "architectureScore": 8,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it coordinates runtime phases or orchestration for this scope."
+          },
+          {
+            "path": "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": true,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          }
+        ],
+        "rejectedAnchors": [
+          {
+            "path": "NexusReader.Infrastructure.Mobile/Services/MauiStorageService.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+            "category": "high-value-support",
+            "architectureScore": 12,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Infrastructure.Mobile/Class1.cs",
+            "category": "scope-fallback",
+            "architectureScore": 8,
+            "selected": false,
+            "reason": "Only low-signal scope membership was available for this file."
+          },
+          {
+            "path": "NexusReader.Maui/Platforms/Android/MainApplication.cs",
+            "category": "scope-fallback",
+            "architectureScore": 8,
+            "selected": false,
+            "reason": "Only low-signal scope membership was available for this file."
+          }
+        ],
+        "issues": []
+      }
+    },
+    {
+      "filename": "data-and-persistence.md",
+      "title": "Data Layer, EF Core and Repositories",
+      "kind": "infrastructure",
+      "relativeOutputPath": "domains/data-and-persistence.md",
+      "collectionId": "domains:domains",
+      "collectionKind": "domains",
+      "publicationTier": "secondary",
+      "resolvedFileCount": 38,
+      "contextBag": {
+        "id": "data_and_persistence_md",
+        "bagType": "startup",
+        "title": "Data Layer, EF Core and Repositories context bag",
+        "anchorFiles": [
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web/Program.cs",
+          "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+        ],
+        "includedFiles": [
+          {
+            "path": "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+            "reason": "Selected as a high-value orchestration anchor within the document scope",
+            "source": "convention"
+          },
+          {
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Program.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Web/Program.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260428184727_InitialPostgres.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260428184727_InitialPostgres.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260429080302_AddQuizResults.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260429080302_AddQuizResults.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260503175906_FinalNormalizedSubscriptionArchitecture.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260503175906_FinalNormalizedSubscriptionArchitecture.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260510151022_NormalizeAuthor.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260510151022_NormalizeAuthor.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260510171941_AddEbookLastChapterIndex.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260510171941_AddEbookLastChapterIndex.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Migrations/AppDbContextModelSnapshot.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/AppDbContext.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/AppDbContextFactory.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/DbInitializer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/Migrations/20260513181743_AddEbookReadyFlag.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/Migrations/20260513181743_AddEbookReadyFlag.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/Migrations/20260513183726_FixKnowledgeUnitEbookId.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/Migrations/20260513183726_FixKnowledgeUnitEbookId.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/Migrations/20260513185108_MakeKnowledgeUnitEbookIdNullable.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/Migrations/20260513185108_MakeKnowledgeUnitEbookIdNullable.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.Designer.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Data/NexusReader.Data.csproj",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          }
+        ],
+        "relatedDomains": [
+          "auth"
+        ],
+        "relatedEntrypoints": [
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web/Program.cs"
+        ],
+        "confidence": 0.96
+      },
+      "anchorDiagnostics": {
+        "bagType": "startup",
+        "strategy": "orchestrator-first",
+        "confidence": 0.96,
+        "selectedAnchors": [
+          {
+            "path": "NexusReader.Web.Client/Program.cs",
+            "category": "orchestrator",
+            "role": "program-entry",
+            "architectureScore": 14,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it coordinates runtime phases or orchestration for this scope."
+          },
+          {
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "category": "orchestrator",
+            "role": "program-entry",
+            "architectureScore": 8,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it coordinates runtime phases or orchestration for this scope."
+          },
+          {
+            "path": "NexusReader.Web/Program.cs",
+            "category": "orchestrator",
+            "role": "program-entry",
+            "architectureScore": 8,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it coordinates runtime phases or orchestration for this scope."
+          },
+          {
+            "path": "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": true,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          }
+        ],
+        "rejectedAnchors": [
+          {
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+            "category": "high-value-support",
+            "architectureScore": 12,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260428184727_InitialPostgres.cs",
+            "category": "scope-fallback",
+            "architectureScore": 2,
+            "selected": false,
+            "reason": "Only low-signal scope membership was available for this file."
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260428184727_InitialPostgres.Designer.cs",
+            "category": "scope-fallback",
+            "architectureScore": 2,
+            "selected": false,
+            "reason": "Only low-signal scope membership was available for this file."
+          },
+          {
+            "path": "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.cs",
+            "category": "scope-fallback",
+            "architectureScore": 2,
+            "selected": false,
+            "reason": "Only low-signal scope membership was available for this file."
+          }
+        ],
+        "issues": []
+      }
+    },
+    {
+      "filename": "realtime-and-sync.md",
+      "title": "Real-Time Sync, SignalR and Broadcast",
+      "kind": "flow",
+      "relativeOutputPath": "flows/realtime-and-sync.md",
+      "collectionId": "flows:flows",
+      "collectionKind": "flows",
+      "publicationTier": "secondary",
+      "resolvedFileCount": 6,
+      "contextBag": {
+        "id": "realtime_and_sync_md",
+        "bagType": "integration",
+        "title": "Real-Time Sync, SignalR and Broadcast context bag",
+        "anchorFiles": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+        ],
+        "includedFiles": [
+          {
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/SyncService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          }
+        ],
+        "relatedDomains": [],
+        "relatedEntrypoints": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+        ],
+        "confidence": 0.57
+      },
+      "anchorDiagnostics": {
+        "bagType": "integration",
+        "strategy": "entrypoint-first",
+        "confidence": 0.57,
+        "selectedAnchors": [
+          {
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": true,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          }
+        ],
+        "rejectedAnchors": [
+          {
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs",
+            "category": "scope-fallback",
+            "architectureScore": 8,
+            "selected": false,
+            "reason": "Only low-signal scope membership was available for this file."
+          },
+          {
+            "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+            "category": "scope-fallback",
+            "architectureScore": 8,
+            "selected": false,
+            "reason": "Only low-signal scope membership was available for this file."
+          },
+          {
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "category": "scope-fallback",
+            "architectureScore": 8,
+            "selected": false,
+            "reason": "Only low-signal scope membership was available for this file."
+          },
+          {
+            "path": "NexusReader.UI.Shared/Services/SyncService.cs",
+            "category": "scope-fallback",
+            "architectureScore": 8,
+            "selected": false,
+            "reason": "Only low-signal scope membership was available for this file."
+          }
+        ],
+        "issues": []
+      }
+    },
+    {
+      "filename": "infrastructure-services.md",
+      "title": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub",
+      "kind": "service",
+      "relativeOutputPath": "domains/infrastructure-services.md",
+      "collectionId": "domains:domains",
+      "collectionKind": "domains",
+      "publicationTier": "secondary",
+      "resolvedFileCount": 19,
+      "contextBag": {
+        "id": "infrastructure_services_md",
+        "bagType": "startup",
+        "title": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub context bag",
+        "anchorFiles": [
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web/Program.cs",
+          "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+        ],
+        "includedFiles": [
+          {
+            "path": "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+            "reason": "Selected as a high-value orchestration anchor within the document scope",
+            "source": "convention"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Services/BillingService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Program.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Web/Program.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          }
+        ],
+        "relatedDomains": [
+          "auth"
+        ],
+        "relatedEntrypoints": [
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web/Program.cs"
+        ],
+        "confidence": 0.96
+      },
+      "anchorDiagnostics": {
+        "bagType": "startup",
+        "strategy": "orchestrator-first",
+        "confidence": 0.96,
+        "selectedAnchors": [
+          {
+            "path": "NexusReader.Web.Client/Program.cs",
+            "category": "orchestrator",
+            "role": "program-entry",
+            "architectureScore": 14,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it coordinates runtime phases or orchestration for this scope."
+          },
+          {
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "category": "orchestrator",
+            "role": "program-entry",
+            "architectureScore": 8,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it coordinates runtime phases or orchestration for this scope."
+          },
+          {
+            "path": "NexusReader.Web/Program.cs",
+            "category": "orchestrator",
+            "role": "program-entry",
+            "architectureScore": 8,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it coordinates runtime phases or orchestration for this scope."
+          },
+          {
+            "path": "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+            "category": "high-value-support",
+            "architectureScore": 20,
+            "selected": true,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          }
+        ],
+        "rejectedAnchors": [
+          {
+            "path": "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Infrastructure/Services/BillingService.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          }
+        ],
+        "issues": []
+      }
+    },
+    {
+      "filename": "business-overview.md",
+      "title": "Business Overview",
+      "kind": "business-overview",
+      "relativeOutputPath": "business/business-overview.md",
+      "collectionId": "business:business",
+      "collectionKind": "business",
+      "publicationTier": "primary",
+      "resolvedFileCount": 15,
+      "contextBag": {
+        "id": "business_overview_md",
+        "bagType": "module",
+        "title": "Business Overview context bag",
+        "anchorFiles": [
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web/Program.cs"
+        ],
+        "includedFiles": [
+          {
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Web.Client/Program.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Web/Program.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Application/DTOs/User/AuthorDto.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Domain/Entities/Author.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Layout/AuthLayout.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Pages/Account/Login.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Pages/Account/Register.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          }
+        ],
+        "relatedDomains": [
+          "auth",
+          "account"
+        ],
+        "relatedEntrypoints": [
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web/Program.cs"
+        ],
+        "confidence": 0.75
+      },
+      "anchorDiagnostics": {
+        "bagType": "module",
+        "strategy": "entrypoint-first",
+        "confidence": 0.75,
+        "selectedAnchors": [
+          {
+            "path": "NexusReader.Web.Client/Program.cs",
+            "category": "entrypoint",
+            "role": "program-entry",
+            "architectureScore": 14,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "category": "entrypoint",
+            "role": "program-entry",
+            "architectureScore": 8,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Web/Program.cs",
+            "category": "entrypoint",
+            "role": "program-entry",
+            "architectureScore": 8,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          }
+        ],
+        "rejectedAnchors": [
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/DTOs/User/AuthorDto.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+            "category": "scope-fallback",
+            "architectureScore": 8,
+            "selected": false,
+            "reason": "Only low-signal scope membership was available for this file."
+          },
+          {
+            "path": "NexusReader.Domain/Entities/Author.cs",
+            "category": "scope-fallback",
+            "architectureScore": 8,
+            "selected": false,
+            "reason": "Only low-signal scope membership was available for this file."
+          }
+        ],
+        "issues": []
+      }
+    },
+    {
+      "filename": "top-business-flows.md",
+      "title": "Top Business Flows",
+      "kind": "business-flow",
+      "relativeOutputPath": "business/top-business-flows.md",
+      "collectionId": "business:business",
+      "collectionKind": "business",
+      "publicationTier": "primary",
+      "resolvedFileCount": 15,
+      "contextBag": {
+        "id": "top_business_flows_md",
+        "bagType": "module",
+        "title": "Top Business Flows context bag",
+        "anchorFiles": [
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web/Program.cs"
+        ],
+        "includedFiles": [
+          {
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Web.Client/Program.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Web/Program.cs",
+            "reason": "Selected as an entrypoint anchor for this flow scope",
+            "source": "entrypoint"
+          },
+          {
+            "path": "NexusReader.Application/DTOs/User/AuthorDto.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Domain/Entities/Author.cs",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Layout/AuthLayout.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "reason": "Included because it likely participates in the core orchestration path",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Pages/Account/Login.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.UI.Shared/Pages/Account/Register.razor",
+            "reason": "Included because it belongs to the resolved document scope",
+            "source": "scope"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+            "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+            "source": "type-reference"
+          }
+        ],
+        "relatedDomains": [
+          "auth",
+          "account"
+        ],
+        "relatedEntrypoints": [
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web/Program.cs"
+        ],
+        "confidence": 0.75
+      },
+      "anchorDiagnostics": {
+        "bagType": "module",
+        "strategy": "entrypoint-first",
+        "confidence": 0.75,
+        "selectedAnchors": [
+          {
+            "path": "NexusReader.Web.Client/Program.cs",
+            "category": "entrypoint",
+            "role": "program-entry",
+            "architectureScore": 14,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "category": "entrypoint",
+            "role": "program-entry",
+            "architectureScore": 8,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Web/Program.cs",
+            "category": "entrypoint",
+            "role": "program-entry",
+            "architectureScore": 8,
+            "entrypointScore": 22,
+            "selected": true,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          }
+        ],
+        "rejectedAnchors": [
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+            "category": "entrypoint",
+            "role": "unknown",
+            "architectureScore": 14,
+            "entrypointScore": 6,
+            "selected": false,
+            "reason": "Selected because it is a visible entrypoint candidate inside the resolved scope."
+          },
+          {
+            "path": "NexusReader.Application/DTOs/User/AuthorDto.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "category": "high-value-support",
+            "architectureScore": 14,
+            "selected": false,
+            "reason": "Selected because it is a high-value orchestration support file within the document scope."
+          },
+          {
+            "path": "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+            "category": "scope-fallback",
+            "architectureScore": 8,
+            "selected": false,
+            "reason": "Only low-signal scope membership was available for this file."
+          },
+          {
+            "path": "NexusReader.Domain/Entities/Author.cs",
+            "category": "scope-fallback",
+            "architectureScore": 8,
+            "selected": false,
+            "reason": "Only low-signal scope membership was available for this file."
+          }
+        ],
+        "issues": []
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/src/.documentation/debug/semantic-map.debug.json b/src/.documentation/debug/semantic-map.debug.json
new file mode 100644
index 0000000..1139187
--- /dev/null
+++ b/src/.documentation/debug/semantic-map.debug.json
@@ -0,0 +1,1261 @@
+{
+  "workspaceRoot": "c:/Users/micht/source/repos/Nexus.Reader/src",
+  "projectArchetype": "web-application",
+  "domains": [
+    {
+      "id": "domain_auth",
+      "label": "auth",
+      "kind": "business-domain",
+      "filePaths": [
+        "NexusReader.Application/DTOs/User/AuthorDto.cs",
+        "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+        "NexusReader.Domain/Entities/Author.cs",
+        "NexusReader.UI.Shared/Layout/AuthLayout.razor",
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+      ],
+      "projectPaths": [],
+      "dominantEntrypoints": [],
+      "dominantTechnologies": [
+        "dotnet"
+      ],
+      "dependencies": [],
+      "confidence": "medium"
+    },
+    {
+      "id": "domain_account",
+      "label": "account",
+      "kind": "business-domain",
+      "filePaths": [
+        "NexusReader.UI.Shared/Pages/Account/Login.razor",
+        "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+        "NexusReader.UI.Shared/Pages/Account/Register.razor"
+      ],
+      "projectPaths": [],
+      "dominantEntrypoints": [],
+      "dominantTechnologies": [
+        "dotnet"
+      ],
+      "dependencies": [],
+      "confidence": "low"
+    }
+  ],
+  "surfaces": [
+    {
+      "id": "runtime-startup",
+      "kind": "startup",
+      "label": "Startup and composition root",
+      "filePaths": [
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Web/Program.cs"
+      ],
+      "confidence": 0.92,
+      "evidence": [
+        "Detected program/startup/bootstrap surfaces"
+      ]
+    }
+  ],
+  "flows": [
+    {
+      "id": "semantic_doc_flow_0_overview_md",
+      "name": "Project Overview and Architecture",
+      "kind": "startup-flow",
+      "domainIds": [
+        "domain_auth",
+        "domain_account"
+      ],
+      "headNodeId": "entry_nexusreader_web_client_program_cs",
+      "nodeIds": [
+        "doc_overview_md",
+        "entry_nexusreader_web_client_program_cs",
+        "surface_runtime_startup",
+        "domain_auth",
+        "domain_account"
+      ],
+      "edgeIds": [
+        "edge_entry_nexusreader_web_client_program_cs_doc_overview_md"
+      ],
+      "contractIds": [],
+      "methodSteps": [],
+      "dominanceScore": 66.7,
+      "evidencePaths": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+        "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+        "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+        "NexusReader.Application/Abstractions/Messaging/IQuery.cs"
+      ]
+    },
+    {
+      "id": "semantic_doc_flow_1_application_layer_md",
+      "name": "Application Layer: Commands, Queries and DTOs",
+      "kind": "startup-flow",
+      "domainIds": [
+        "domain_auth"
+      ],
+      "headNodeId": "entry_nexusreader_web_client_program_cs",
+      "nodeIds": [
+        "doc_application_layer_md",
+        "entry_nexusreader_web_client_program_cs",
+        "surface_runtime_startup",
+        "domain_auth"
+      ],
+      "edgeIds": [
+        "edge_entry_nexusreader_web_client_program_cs_doc_application_layer_md"
+      ],
+      "contractIds": [],
+      "methodSteps": [],
+      "dominanceScore": 39.6,
+      "evidencePaths": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Application/Commands/Library/IngestEbookRequest.cs",
+        "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+        "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+        "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+        "NexusReader.Application/Abstractions/Messaging/IQueryHandler.cs"
+      ]
+    },
+    {
+      "id": "semantic_doc_flow_2_security_identity_auth_md",
+      "name": "Security, Identity and Authorization",
+      "kind": "domain-flow",
+      "domainIds": [
+        "domain_auth"
+      ],
+      "headNodeId": "entry_nexusreader_infrastructure_identity_tokenlimithandler_cs",
+      "nodeIds": [
+        "doc_security_identity_auth_md",
+        "domain_auth"
+      ],
+      "edgeIds": [
+        "edge_entry_nexusreader_infrastructure_identity_tokenlimithandler_cs_doc_security_identity_auth_md"
+      ],
+      "contractIds": [],
+      "methodSteps": [],
+      "dominanceScore": 8.9,
+      "evidencePaths": [
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+        "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+      ]
+    },
+    {
+      "id": "semantic_doc_flow_3_web_client_wasm_md",
+      "name": "Blazor WebAssembly Client: hosting, handlers, and platform services",
+      "kind": "startup-flow",
+      "domainIds": [
+        "domain_auth"
+      ],
+      "headNodeId": "entry_nexusreader_web_client_program_cs",
+      "nodeIds": [
+        "doc_web_client_wasm_md",
+        "entry_nexusreader_web_client_program_cs",
+        "surface_runtime_startup",
+        "domain_auth"
+      ],
+      "edgeIds": [
+        "edge_entry_nexusreader_web_client_program_cs_doc_web_client_wasm_md"
+      ],
+      "contractIds": [],
+      "methodSteps": [],
+      "dominanceScore": 31.1,
+      "evidencePaths": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "NexusReader.Web.Client/Services/WasmEpubService.cs",
+        "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+      ]
+    },
+    {
+      "id": "semantic_doc_flow_4_maui_mobile_md",
+      "name": "MAUI Mobile Host: App wiring and platform services",
+      "kind": "startup-flow",
+      "domainIds": [
+        "domain_auth"
+      ],
+      "headNodeId": "entry_nexusreader_web_client_program_cs",
+      "nodeIds": [
+        "doc_maui_mobile_md",
+        "entry_nexusreader_web_client_program_cs",
+        "surface_runtime_startup",
+        "domain_auth"
+      ],
+      "edgeIds": [
+        "edge_entry_nexusreader_web_client_program_cs_doc_maui_mobile_md"
+      ],
+      "contractIds": [],
+      "methodSteps": [],
+      "dominanceScore": 35.6,
+      "evidencePaths": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs",
+        "NexusReader.Infrastructure.Mobile/Services/MauiStorageService.cs",
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+      ]
+    },
+    {
+      "id": "semantic_doc_flow_5_data_and_persistence_md",
+      "name": "Data Layer, EF Core and Repositories",
+      "kind": "startup-flow",
+      "domainIds": [
+        "domain_auth"
+      ],
+      "headNodeId": "entry_nexusreader_web_client_program_cs",
+      "nodeIds": [
+        "doc_data_and_persistence_md",
+        "entry_nexusreader_web_client_program_cs",
+        "surface_runtime_startup",
+        "domain_auth"
+      ],
+      "edgeIds": [
+        "edge_entry_nexusreader_web_client_program_cs_doc_data_and_persistence_md"
+      ],
+      "contractIds": [],
+      "methodSteps": [],
+      "dominanceScore": 39.2,
+      "evidencePaths": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "NexusReader.Web.Client/Services/WasmEpubService.cs"
+      ]
+    },
+    {
+      "id": "semantic_doc_flow_6_realtime_and_sync_md",
+      "name": "Real-Time Sync, SignalR and Broadcast",
+      "kind": "domain-flow",
+      "domainIds": [],
+      "headNodeId": "entry_nexusreader_application_commands_sync_updatereadingprogresscommand_cs",
+      "nodeIds": [
+        "doc_realtime_and_sync_md",
+        "entry_nexusreader_application_commands_sync_updatereadingprogresscommand_cs"
+      ],
+      "edgeIds": [
+        "edge_entry_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_doc_realtime_and_sync_md"
+      ],
+      "contractIds": [],
+      "methodSteps": [],
+      "dominanceScore": 12.899999999999999,
+      "evidencePaths": [
+        "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs",
+        "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+      ]
+    },
+    {
+      "id": "semantic_doc_flow_7_infrastructure_services_md",
+      "name": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub",
+      "kind": "startup-flow",
+      "domainIds": [
+        "domain_auth"
+      ],
+      "headNodeId": "entry_nexusreader_web_client_program_cs",
+      "nodeIds": [
+        "doc_infrastructure_services_md",
+        "entry_nexusreader_web_client_program_cs",
+        "surface_runtime_startup",
+        "domain_auth"
+      ],
+      "edgeIds": [
+        "edge_entry_nexusreader_web_client_program_cs_doc_infrastructure_services_md"
+      ],
+      "contractIds": [],
+      "methodSteps": [],
+      "dominanceScore": 35.4,
+      "evidencePaths": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+        "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+        "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+        "NexusReader.Infrastructure/Services/BillingService.cs"
+      ]
+    },
+    {
+      "id": "semantic_doc_flow_8_business_overview_md",
+      "name": "Business Overview",
+      "kind": "startup-flow",
+      "domainIds": [
+        "domain_auth",
+        "domain_account"
+      ],
+      "headNodeId": "entry_nexusreader_web_client_program_cs",
+      "nodeIds": [
+        "doc_business_overview_md",
+        "entry_nexusreader_web_client_program_cs",
+        "surface_runtime_startup",
+        "domain_auth",
+        "domain_account"
+      ],
+      "edgeIds": [
+        "edge_entry_nexusreader_web_client_program_cs_doc_business_overview_md"
+      ],
+      "contractIds": [],
+      "methodSteps": [],
+      "dominanceScore": 32.5,
+      "evidencePaths": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Application/DTOs/User/AuthorDto.cs"
+      ]
+    },
+    {
+      "id": "semantic_doc_flow_9_top_business_flows_md",
+      "name": "Top Business Flows",
+      "kind": "domain-flow",
+      "domainIds": [
+        "domain_auth",
+        "domain_account"
+      ],
+      "headNodeId": "entry_nexusreader_web_client_program_cs",
+      "nodeIds": [
+        "doc_top_business_flows_md",
+        "entry_nexusreader_web_client_program_cs",
+        "surface_runtime_startup",
+        "domain_auth",
+        "domain_account"
+      ],
+      "edgeIds": [
+        "edge_entry_nexusreader_web_client_program_cs_doc_top_business_flows_md"
+      ],
+      "contractIds": [],
+      "methodSteps": [],
+      "dominanceScore": 32.5,
+      "evidencePaths": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Application/DTOs/User/AuthorDto.cs"
+      ]
+    }
+  ],
+  "nodes": [
+    {
+      "id": "surface_runtime_startup",
+      "label": "Startup and composition root",
+      "kind": "runtime-surface",
+      "filePaths": [
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Web/Program.cs"
+      ],
+      "confidence": "high"
+    },
+    {
+      "id": "domain_auth",
+      "label": "auth",
+      "kind": "domain",
+      "filePaths": [
+        "NexusReader.Application/DTOs/User/AuthorDto.cs",
+        "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+        "NexusReader.Domain/Entities/Author.cs",
+        "NexusReader.UI.Shared/Layout/AuthLayout.razor",
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+      ],
+      "confidence": "medium"
+    },
+    {
+      "id": "domain_account",
+      "label": "account",
+      "kind": "domain",
+      "filePaths": [
+        "NexusReader.UI.Shared/Pages/Account/Login.razor",
+        "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+        "NexusReader.UI.Shared/Pages/Account/Register.razor"
+      ],
+      "confidence": "low"
+    },
+    {
+      "id": "entry_nexusreader_maui_mauiprogram_cs",
+      "label": "MauiProgram.cs",
+      "kind": "entrypoint",
+      "filePaths": [
+        "NexusReader.Maui/MauiProgram.cs"
+      ],
+      "confidence": "high"
+    },
+    {
+      "id": "entry_nexusreader_web_client_program_cs",
+      "label": "Program.cs",
+      "kind": "entrypoint",
+      "filePaths": [
+        "NexusReader.Web.Client/Program.cs"
+      ],
+      "confidence": "high"
+    },
+    {
+      "id": "entry_nexusreader_web_program_cs",
+      "label": "Program.cs",
+      "kind": "entrypoint",
+      "filePaths": [
+        "NexusReader.Web/Program.cs"
+      ],
+      "confidence": "high"
+    },
+    {
+      "id": "entry_nexusreader_application_abstractions_messaging_icommand_cs",
+      "label": "ICommand.cs",
+      "kind": "entrypoint",
+      "filePaths": [
+        "NexusReader.Application/Abstractions/Messaging/ICommand.cs"
+      ],
+      "confidence": "medium"
+    },
+    {
+      "id": "entry_nexusreader_application_abstractions_messaging_icommandhandler_cs",
+      "label": "ICommandHandler.cs",
+      "kind": "entrypoint",
+      "filePaths": [
+        "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs"
+      ],
+      "confidence": "medium"
+    },
+    {
+      "id": "entry_nexusreader_application_abstractions_messaging_iquery_cs",
+      "label": "IQuery.cs",
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+        "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj",
+        "NexusReader.Maui/App.xaml.cs",
+        "NexusReader.Maui/MainPage.xaml.cs",
+        "NexusReader.Maui/Platforms/Android/MainActivity.cs",
+        "NexusReader.Maui/_Imports.razor",
+        "NexusReader.Maui/Main.razor",
+        "NexusReader.Maui/NexusReader.Maui.csproj"
+      ],
+      "confidence": "medium"
+    },
+    {
+      "id": "doc_data_and_persistence_md",
+      "label": "Data Layer, EF Core and Repositories",
+      "kind": "document",
+      "filePaths": [
+        "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Web.Client/Services/WasmEpubService.cs",
+        "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+        "NexusReader.Web.Client/Services/WebPlatformService.cs",
+        "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Data/Migrations/20260428184727_InitialPostgres.cs",
+        "NexusReader.Data/Migrations/20260428184727_InitialPostgres.Designer.cs",
+        "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.cs",
+        "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.Designer.cs",
+        "NexusReader.Data/Migrations/20260429080302_AddQuizResults.cs",
+        "NexusReader.Data/Migrations/20260429080302_AddQuizResults.Designer.cs",
+        "NexusReader.Data/Migrations/20260503175906_FinalNormalizedSubscriptionArchitecture.cs",
+        "NexusReader.Data/Migrations/20260503175906_FinalNormalizedSubscriptionArchitecture.Designer.cs",
+        "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs",
+        "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs",
+        "NexusReader.Data/Migrations/20260510151022_NormalizeAuthor.cs",
+        "NexusReader.Data/Migrations/20260510151022_NormalizeAuthor.Designer.cs",
+        "NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.cs",
+        "NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.Designer.cs",
+        "NexusReader.Data/Migrations/20260510171941_AddEbookLastChapterIndex.cs",
+        "NexusReader.Data/Migrations/20260510171941_AddEbookLastChapterIndex.Designer.cs",
+        "NexusReader.Data/Migrations/AppDbContextModelSnapshot.cs",
+        "NexusReader.Data/Persistence/AppDbContext.cs",
+        "NexusReader.Data/Persistence/AppDbContextFactory.cs",
+        "NexusReader.Data/Persistence/DbInitializer.cs",
+        "NexusReader.Data/Persistence/Migrations/20260513181743_AddEbookReadyFlag.cs",
+        "NexusReader.Data/Persistence/Migrations/20260513181743_AddEbookReadyFlag.Designer.cs",
+        "NexusReader.Data/Persistence/Migrations/20260513183726_FixKnowledgeUnitEbookId.cs",
+        "NexusReader.Data/Persistence/Migrations/20260513183726_FixKnowledgeUnitEbookId.Designer.cs",
+        "NexusReader.Data/Persistence/Migrations/20260513185108_MakeKnowledgeUnitEbookIdNullable.cs",
+        "NexusReader.Data/Persistence/Migrations/20260513185108_MakeKnowledgeUnitEbookIdNullable.Designer.cs",
+        "NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.cs",
+        "NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.Designer.cs",
+        "NexusReader.Data/NexusReader.Data.csproj"
+      ],
+      "confidence": "medium"
+    },
+    {
+      "id": "doc_realtime_and_sync_md",
+      "label": "Real-Time Sync, SignalR and Broadcast",
+      "kind": "document",
+      "filePaths": [
+        "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs",
+        "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "NexusReader.UI.Shared/Services/SyncService.cs"
+      ],
+      "confidence": "medium"
+    },
+    {
+      "id": "doc_infrastructure_services_md",
+      "label": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub",
+      "kind": "document",
+      "filePaths": [
+        "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+        "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+        "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+        "NexusReader.Infrastructure/Services/BillingService.cs",
+        "NexusReader.Infrastructure/Services/BookStorageService.cs",
+        "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Web.Client/Services/WasmEpubService.cs",
+        "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+        "NexusReader.Web.Client/Services/WebPlatformService.cs",
+        "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+        "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+        "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+        "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj"
+      ],
+      "confidence": "medium"
+    },
+    {
+      "id": "doc_business_overview_md",
+      "label": "Business Overview",
+      "kind": "document",
+      "filePaths": [
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Application/DTOs/User/AuthorDto.cs",
+        "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+        "NexusReader.Domain/Entities/Author.cs",
+        "NexusReader.UI.Shared/Layout/AuthLayout.razor",
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "NexusReader.UI.Shared/Pages/Account/Login.razor",
+        "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+        "NexusReader.UI.Shared/Pages/Account/Register.razor",
+        "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+        "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+        "NexusReader.Application/Abstractions/Messaging/IQuery.cs"
+      ],
+      "confidence": "medium"
+    },
+    {
+      "id": "doc_top_business_flows_md",
+      "label": "Top Business Flows",
+      "kind": "document",
+      "filePaths": [
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Application/DTOs/User/AuthorDto.cs",
+        "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+        "NexusReader.Domain/Entities/Author.cs",
+        "NexusReader.UI.Shared/Layout/AuthLayout.razor",
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "NexusReader.UI.Shared/Pages/Account/Login.razor",
+        "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+        "NexusReader.UI.Shared/Pages/Account/Register.razor",
+        "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+        "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+        "NexusReader.Application/Abstractions/Messaging/IQuery.cs"
+      ],
+      "confidence": "medium"
+    }
+  ],
+  "edges": [
+    {
+      "id": "edge_doc_overview_md_domain_auth",
+      "from": "doc_overview_md",
+      "to": "domain_auth",
+      "kind": "covers-document",
+      "label": "covers domain scope",
+      "evidencePaths": [
+        "NexusReader.Application/DTOs/User/AuthorDto.cs",
+        "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+        "NexusReader.Domain/Entities/Author.cs",
+        "NexusReader.UI.Shared/Layout/AuthLayout.razor"
+      ],
+      "confidence": "high"
+    },
+    {
+      "id": "edge_doc_application_layer_md_domain_auth",
+      "from": "doc_application_layer_md",
+      "to": "domain_auth",
+      "kind": "covers-document",
+      "label": "covers domain scope",
+      "evidencePaths": [
+        "NexusReader.Application/DTOs/User/AuthorDto.cs"
+      ],
+      "confidence": "medium"
+    },
+    {
+      "id": "edge_doc_security_identity_auth_md_domain_auth",
+      "from": "doc_security_identity_auth_md",
+      "to": "domain_auth",
+      "kind": "covers-document",
+      "label": "covers domain scope",
+      "evidencePaths": [
+        "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "NexusReader.Application/Security/Authorization/ProUserRequirement.cs"
+      ],
+      "confidence": "high"
+    },
+    {
+      "id": "edge_doc_web_client_wasm_md_domain_auth",
+      "from": "doc_web_client_wasm_md",
+      "to": "domain_auth",
+      "kind": "covers-document",
+      "label": "covers domain scope",
+      "evidencePaths": [
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+      ],
+      "confidence": "medium"
+    },
+    {
+      "id": "edge_doc_maui_mobile_md_domain_auth",
+      "from": "doc_maui_mobile_md",
+      "to": "domain_auth",
+      "kind": "covers-document",
+      "label": "covers domain scope",
+      "evidencePaths": [
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+      ],
+      "confidence": "medium"
+    },
+    {
+      "id": "edge_doc_data_and_persistence_md_domain_auth",
+      "from": "doc_data_and_persistence_md",
+      "to": "domain_auth",
+      "kind": "covers-document",
+      "label": "covers domain scope",
+      "evidencePaths": [
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+      ],
+      "confidence": "medium"
+    },
+    {
+      "id": "edge_doc_infrastructure_services_md_domain_auth",
+      "from": "doc_infrastructure_services_md",
+      "to": "domain_auth",
+      "kind": "covers-document",
+      "label": "covers domain scope",
+      "evidencePaths": [
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+      ],
+      "confidence": "medium"
+    },
+    {
+      "id": "edge_doc_business_overview_md_domain_auth",
+      "from": "doc_business_overview_md",
+      "to": "domain_auth",
+      "kind": "covers-document",
+      "label": "covers domain scope",
+      "evidencePaths": [
+        "NexusReader.Application/DTOs/User/AuthorDto.cs",
+        "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+        "NexusReader.Domain/Entities/Author.cs",
+        "NexusReader.UI.Shared/Layout/AuthLayout.razor",
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+      ],
+      "confidence": "high"
+    },
+    {
+      "id": "edge_doc_top_business_flows_md_domain_auth",
+      "from": "doc_top_business_flows_md",
+      "to": "domain_auth",
+      "kind": "covers-document",
+      "label": "covers domain scope",
+      "evidencePaths": [
+        "NexusReader.Application/DTOs/User/AuthorDto.cs",
+        "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+        "NexusReader.Domain/Entities/Author.cs",
+        "NexusReader.UI.Shared/Layout/AuthLayout.razor",
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+      ],
+      "confidence": "high"
+    },
+    {
+      "id": "edge_entry_nexusreader_web_client_program_cs_doc_overview_md",
+      "from": "entry_nexusreader_web_client_program_cs",
+      "to": "doc_overview_md",
+      "kind": "heads-flow",
+      "label": "Program.cs heads Project Overview and Architecture",
+      "evidencePaths": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs"
+      ],
+      "confidence": "high"
+    },
+    {
+      "id": "edge_entry_nexusreader_web_client_program_cs_doc_application_layer_md",
+      "from": "entry_nexusreader_web_client_program_cs",
+      "to": "doc_application_layer_md",
+      "kind": "heads-flow",
+      "label": "Program.cs heads Application Layer: Commands, Queries and DTOs",
+      "evidencePaths": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+      ],
+      "confidence": "high"
+    },
+    {
+      "id": "edge_entry_nexusreader_infrastructure_identity_tokenlimithandler_cs_doc_security_identity_auth_md",
+      "from": "entry_nexusreader_infrastructure_identity_tokenlimithandler_cs",
+      "to": "doc_security_identity_auth_md",
+      "kind": "heads-flow",
+      "label": "TokenLimitHandler.cs heads Security, Identity and Authorization",
+      "evidencePaths": [
+        "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+        "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+        "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+      ],
+      "confidence": "high"
+    },
+    {
+      "id": "edge_entry_nexusreader_web_client_program_cs_doc_web_client_wasm_md",
+      "from": "entry_nexusreader_web_client_program_cs",
+      "to": "doc_web_client_wasm_md",
+      "kind": "heads-flow",
+      "label": "Program.cs heads Blazor WebAssembly Client: hosting, handlers, and platform services",
+      "evidencePaths": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs"
+      ],
+      "confidence": "high"
+    },
+    {
+      "id": "edge_entry_nexusreader_web_client_program_cs_doc_maui_mobile_md",
+      "from": "entry_nexusreader_web_client_program_cs",
+      "to": "doc_maui_mobile_md",
+      "kind": "heads-flow",
+      "label": "Program.cs heads MAUI Mobile Host: App wiring and platform services",
+      "evidencePaths": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+      ],
+      "confidence": "high"
+    },
+    {
+      "id": "edge_entry_nexusreader_web_client_program_cs_doc_data_and_persistence_md",
+      "from": "entry_nexusreader_web_client_program_cs",
+      "to": "doc_data_and_persistence_md",
+      "kind": "heads-flow",
+      "label": "Program.cs heads Data Layer, EF Core and Repositories",
+      "evidencePaths": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+      ],
+      "confidence": "high"
+    },
+    {
+      "id": "edge_entry_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_doc_realtime_and_sync_md",
+      "from": "entry_nexusreader_application_commands_sync_updatereadingprogresscommand_cs",
+      "to": "doc_realtime_and_sync_md",
+      "kind": "heads-flow",
+      "label": "UpdateReadingProgressCommand.cs heads Real-Time Sync, SignalR and Broadcast",
+      "evidencePaths": [
+        "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+      ],
+      "confidence": "high"
+    },
+    {
+      "id": "edge_entry_nexusreader_web_client_program_cs_doc_infrastructure_services_md",
+      "from": "entry_nexusreader_web_client_program_cs",
+      "to": "doc_infrastructure_services_md",
+      "kind": "heads-flow",
+      "label": "Program.cs heads Infrastructure Services: Knowledge, AI, Billing, Storage, Epub",
+      "evidencePaths": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+      ],
+      "confidence": "high"
+    },
+    {
+      "id": "edge_entry_nexusreader_web_client_program_cs_doc_business_overview_md",
+      "from": "entry_nexusreader_web_client_program_cs",
+      "to": "doc_business_overview_md",
+      "kind": "heads-flow",
+      "label": "Program.cs heads Business Overview",
+      "evidencePaths": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs"
+      ],
+      "confidence": "high"
+    },
+    {
+      "id": "edge_entry_nexusreader_web_client_program_cs_doc_top_business_flows_md",
+      "from": "entry_nexusreader_web_client_program_cs",
+      "to": "doc_top_business_flows_md",
+      "kind": "heads-flow",
+      "label": "Program.cs heads Top Business Flows",
+      "evidencePaths": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs"
+      ],
+      "confidence": "high"
+    }
+  ],
+  "contracts": [],
+  "diagnostics": []
+}
\ No newline at end of file
diff --git a/src/.documentation/domains/application-layer.md b/src/.documentation/domains/application-layer.md
new file mode 100644
index 0000000..cb5130f
--- /dev/null
+++ b/src/.documentation/domains/application-layer.md
@@ -0,0 +1,420 @@
+## Application Layer: Commands, Queries and DTOs
+
+Overview: Describes the Application project's command/query patterns, key handlers (ebook ingestion, AI verification, semantic search, reader and user queries), DTO shapes, and mapping/startup registration.
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    flow_file_nexusreader_application_abstractions_services_iknowledgeservice_cs_file_1["IKnowledgeService"]
+    flow_file_nexusreader_application_abstractions_messaging_icommand_cs_file_1["ICommand.cs"]
+    flow_file_nexusreader_application_abstractions_messaging_icommandhandler_cs_file_1["ICommandHandler"]
+    flow_file_nexusreader_application_abstractions_messaging_iquery_cs_file_1["IQuery.cs"]
+    flow_file_nexusreader_application_abstractions_messaging_iqueryhandler_cs_file_1["IQueryHandler<TQuery, TResponse>"]
+    flow_file_nexusreader_application_commands_ai_verifygroundednesscommand_cs_file_1["VerifyGroundednessCommandHandler"]
+    flow_file_nexusreader_application_commands_library_ingestebookcommand_cs_file_1["IngestEbookCommand"]
+    flow_file_nexusreader_application_commands_library_ingestebookcommandhandler_cs_file_1["IngestEbookCommandHandler"]
+    flow_file_nexusreader_application_commands_library_ingestebookrequest_cs_file_1["IngestEbookRequest"]
+    flow_file_nexusreader_application_commands_quiz_submitanswercommand_cs_file_1["SubmitAnswerCommand"]
+    flow_type_nexusreader_application_abstractions_messaging_icommand_cs_icommand_6[/"ICommand"/]
+    flow_type_nexusreader_application_abstractions_messaging_icommand_cs_icommand_tresponse_10[/"ICommand<TResponse>"/]
+    flow_type_nexusreader_application_abstractions_messaging_icommandhandler_cs_icommandhandler_tcommand_6[/"ICommandHandler<TCommand>"/]
+    flow_type_nexusreader_application_abstractions_messaging_icommandhandler_cs_icommandhandler_tcommand_tresponse_11[/"ICommandHandler<TCommand, TResponse>"/]
+    flow_type_nexusreader_application_abstractions_messaging_iquery_cs_iquery_tresponse_6[/"IQuery<TResponse>"/]
+    flow_type_nexusreader_application_abstractions_messaging_iqueryhandler_cs_iqueryhandler_6[/"IQueryHandler"/]
+    flow_type_nexusreader_application_commands_ai_verifygroundednesscommand_cs_verifygroundednesscommand_7[/"VerifyGroundednessCommand"/]
+    flow_type_nexusreader_application_commands_library_ingestebookcommand_cs_ingestebookcommand_15[/"IngestEbookCommand"/]
+    flow_type_nexusreader_application_commands_library_ingestebookrequest_cs_ingestebookrequest_3[/"IngestEbookRequest"/]
+    flow_type_nexusreader_application_commands_quiz_submitanswercommand_cs_submitanswercommand_5[/"SubmitAnswerCommand"/]
+    flow_file_nexusreader_application_abstractions_messaging_icommand_cs_file_1 -->|interface ICommand| flow_type_nexusreader_application_abstractions_messaging_icommand_cs_icommand_6
+    flow_file_nexusreader_application_abstractions_messaging_icommand_cs_file_1 -->|interface ICommand TResponse>| flow_type_nexusreader_application_abstractions_messaging_icommand_cs_icommand_tresponse_10
+    flow_file_nexusreader_application_abstractions_messaging_icommandhandler_cs_file_1 -->|interface ICommandHandler TCommand>| flow_type_nexusreader_application_abstractions_messaging_icommandhandler_cs_icommandhandler_tcommand_6
+    flow_file_nexusreader_application_abstractions_messaging_icommandhandler_cs_file_1 -->|interface ICommandHandler TCommand, TResponse>| flow_type_nexusreader_application_abstractions_messaging_icommandhandler_cs_icommandhandler_tcommand_tresponse_11
+    flow_file_nexusreader_application_abstractions_messaging_iquery_cs_file_1 -->|interface IQuery TResponse>| flow_type_nexusreader_application_abstractions_messaging_iquery_cs_iquery_tresponse_6
+    flow_file_nexusreader_application_abstractions_messaging_iqueryhandler_cs_file_1 -->|interface IQueryHandler| flow_type_nexusreader_application_abstractions_messaging_iqueryhandler_cs_iqueryhandler_6
+    flow_file_nexusreader_application_commands_ai_verifygroundednesscommand_cs_file_1 -->|command VerifyGroundednessCommand| flow_type_nexusreader_application_commands_ai_verifygroundednesscommand_cs_verifygroundednesscommand_7
+    flow_file_nexusreader_application_commands_library_ingestebookcommand_cs_file_1 -->|command IngestEbookCommand| flow_type_nexusreader_application_commands_library_ingestebookcommand_cs_ingestebookcommand_15
+    flow_file_nexusreader_application_commands_library_ingestebookrequest_cs_file_1 -->|command IngestEbookRequest| flow_type_nexusreader_application_commands_library_ingestebookrequest_cs_ingestebookrequest_3
+    flow_file_nexusreader_application_commands_quiz_submitanswercommand_cs_file_1 -->|command SubmitAnswerCommand| flow_type_nexusreader_application_commands_quiz_submitanswercommand_cs_submitanswercommand_5
+    click flow_file_nexusreader_application_abstractions_messaging_icommand_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Messaging/ICommand.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_messaging_icommand_cs_icommand_6 href "vscode://file/NexusReader.Application/Abstractions/Messaging/ICommand.cs:6:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_messaging_icommand_cs_icommand_tresponse_10 href "vscode://file/NexusReader.Application/Abstractions/Messaging/ICommand.cs:10:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_messaging_icommandhandler_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_messaging_icommandhandler_cs_icommandhandler_tcommand_6 href "vscode://file/NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs:6:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_messaging_icommandhandler_cs_icommandhandler_tcommand_tresponse_11 href "vscode://file/NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs:11:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_messaging_iquery_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Messaging/IQuery.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_messaging_iquery_cs_iquery_tresponse_6 href "vscode://file/NexusReader.Application/Abstractions/Messaging/IQuery.cs:6:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_messaging_iqueryhandler_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Messaging/IQueryHandler.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_messaging_iqueryhandler_cs_iqueryhandler_6 href "vscode://file/NexusReader.Application/Abstractions/Messaging/IQueryHandler.cs:6:1" "Open source"
+    click flow_file_nexusreader_application_commands_ai_verifygroundednesscommand_cs_file_1 href "vscode://file/NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs:1:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_services_iknowledgeservice_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_commands_ai_verifygroundednesscommand_cs_verifygroundednesscommand_7 href "vscode://file/NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs:7:1" "Open source"
+    click flow_file_nexusreader_application_commands_library_ingestebookcommand_cs_file_1 href "vscode://file/NexusReader.Application/Commands/Library/IngestEbookCommand.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_commands_library_ingestebookcommand_cs_ingestebookcommand_15 href "vscode://file/NexusReader.Application/Commands/Library/IngestEbookCommand.cs:15:1" "Open source"
+    click flow_file_nexusreader_application_commands_library_ingestebookcommandhandler_cs_file_1 href "vscode://file/NexusReader.Application/Commands/Library/IngestEbookCommandHandler.cs:1:1" "Open source"
+    click flow_file_nexusreader_application_commands_library_ingestebookrequest_cs_file_1 href "vscode://file/NexusReader.Application/Commands/Library/IngestEbookRequest.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_commands_library_ingestebookrequest_cs_ingestebookrequest_3 href "vscode://file/NexusReader.Application/Commands/Library/IngestEbookRequest.cs:3:1" "Open source"
+    click flow_file_nexusreader_application_commands_quiz_submitanswercommand_cs_file_1 href "vscode://file/NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_commands_quiz_submitanswercommand_cs_submitanswercommand_5 href "vscode://file/NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs:5:1" "Open source"
+```
+
+This diagram maps messaging abstractions (ICommand/IQuery and handler interfaces) to concrete commands and handlers such as IngestEbookCommand/Handler and VerifyGroundednessCommandHandler. It shows the ICommand/IQuery generic contracts used by the mediator-like invocation pattern and links IKnowledgeService and DTO request types.
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    subgraph flow_1_nexusreader_web_client_program_cs["Program.cs"]
+    end
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_file_nexusreader_application_dtos_ai_groundedresponsedto_cs_file_1["GroundedResponseDto"]
+    flow_file_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_file_1["SemanticSearchResultDto"]
+    flow_file_nexusreader_application_mappings_mappingconfig_cs_file_1["MappingConfig"]
+    flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_citationdto_11[/"CitationDto"/]
+    flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_groundedresponsedto_5[/"GroundedResponseDto"/]
+    flow_type_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_semanticsearchresultdto_3[/"SemanticSearchResultDto"/]
+    flow_type_nexusreader_application_mappings_mappingconfig_cs_servicemapper_20[/"ServiceMapper"/]
+    flow_type_nexusreader_application_mappings_mappingconfig_cs_typeadapterconfig_instance_19[/"TypeAdapterConfig (instance)"/]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+    flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+    flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_file_nexusreader_application_mappings_mappingconfig_cs_file_1 -->|IMapper| flow_type_nexusreader_application_mappings_mappingconfig_cs_servicemapper_20
+    flow_file_nexusreader_application_mappings_mappingconfig_cs_file_1 -->|TypeAdapterConfig| flow_type_nexusreader_application_mappings_mappingconfig_cs_typeadapterconfig_instance_19
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    click flow_file_nexusreader_application_dtos_ai_groundedresponsedto_cs_file_1 href "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_groundedresponsedto_5 href "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:5:1" "Open source"
+    click flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_citationdto_11 href "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:11:1" "Open source"
+    click flow_file_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_file_1 href "vscode://file/NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_semanticsearchresultdto_3 href "vscode://file/NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs:3:1" "Open source"
+    click flow_file_nexusreader_application_mappings_mappingconfig_cs_file_1 href "vscode://file/NexusReader.Application/Mappings/MappingConfig.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_mappings_mappingconfig_cs_typeadapterconfig_instance_19 href "vscode://file/NexusReader.Application/Mappings/MappingConfig.cs:19:1" "Open source"
+    click flow_type_nexusreader_application_mappings_mappingconfig_cs_servicemapper_20 href "vscode://file/NexusReader.Application/Mappings/MappingConfig.cs:20:1" "Open source"
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+```
+
+This startup/service-registration view shows MappingConfig registering mapping adapters and DTO types (GroundedResponseDto, SemanticSearchResultDto). It also shows Program.cs providing platform and knowledge service implementations (WasmKnowledgeService, WebPlatformService) and some test/throwing stubs.
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    subgraph flow_1_nexusreader_web_client_program_cs["Program.cs"]
+    end
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_file_nexusreader_application_dtos_ai_groundedresponsedto_cs_file_1["GroundedResponseDto"]
+    flow_file_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_file_1["SemanticSearchResultDto"]
+    flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_citationdto_11[/"CitationDto"/]
+    flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_groundedresponsedto_5[/"GroundedResponseDto"/]
+    flow_type_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_semanticsearchresultdto_3[/"SemanticSearchResultDto"/]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+    flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+    flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+    flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_file_nexusreader_application_dtos_ai_groundedresponsedto_cs_file_1 -->|dto CitationDto| flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_citationdto_11
+    flow_file_nexusreader_application_dtos_ai_groundedresponsedto_cs_file_1 -->|dto GroundedResponseDto| flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_groundedresponsedto_5
+    flow_file_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_file_1 -->|dto SemanticSearchResultDto| flow_type_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_semanticsearchresultdto_3
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|FindAuthorByNameAsync| flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|GetService| flow_method_nexusreader_web_client_program_cs_getservice_71
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|Program top-level startup| flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|unknown| flow_method_nexusreader_web_client_program_cs_run_wasm_host_59
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 -->|Reads repository or persistence state| flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88
+    flow_method_nexusreader_web_client_program_cs_getservice_71 -->|returns null| flow_action_nexusreader_web_client_program_cs_getservice_return_71_71
+    click flow_file_nexusreader_application_dtos_ai_groundedresponsedto_cs_file_1 href "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_groundedresponsedto_5 href "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:5:1" "Open source"
+    click flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_citationdto_11 href "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:11:1" "Open source"
+    click flow_file_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_file_1 href "vscode://file/NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_semanticsearchresultdto_3 href "vscode://file/NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs:3:1" "Open source"
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+```
+
+Program.cs flow highlights startup vs runtime flows: Run WASM host, FindAuthorByNameAsync reading persistence, and the DTOs bound into mapping. It surfaces which services are provided to the frontend (e.g., WasmEpubReader, WasmKnowledgeService) and where test stubs are used.
+
+```mermaid
+flowchart TD
+    subgraph NexusReader_Web_Client_Program["Program"]
+    end
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 -->|Reads repository or persistence state| flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88
+    flow_method_nexusreader_web_client_program_cs_getservice_71 -->|returns null| flow_action_nexusreader_web_client_program_cs_getservice_return_71_71
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_run_wasm_host_59 href "vscode://file/NexusReader.Web.Client/Program.cs:59:1" "Open source"
+```
+
+This control-flow view isolates the key Program methods and shows where repository access occurs (FindAuthorByNameAsync) and that GetService may return null in some contexts. Use this to trace invocation paths for queries.
+
+```mermaid
+classDiagram
+    class flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    class flow_file_nexusreader_application_dtos_ai_groundedresponsedto_cs_file_1["GroundedResponseDto"]
+    class flow_file_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_file_1["SemanticSearchResultDto"]
+    class flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_citationdto_11["CitationDto"]
+    class flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_groundedresponsedto_5["GroundedResponseDto"]
+    class flow_type_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_semanticsearchresultdto_3["SemanticSearchResultDto"]
+    class flow_type_nexusreader_web_client_program_cs_configured_httpclient_40["configured HttpClient"]
+    class flow_type_nexusreader_web_client_program_cs_n_a_55["N/A"]
+    class flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33["NexusAuthenticationStateProvider"]
+    class flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74["ThrowingBookStorageService"]
+    class flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49["ThrowingDbContextFactory"]
+    class flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61["ThrowingDbContextFactory"]
+    class flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84["ThrowingEbookRepository"]
+    class flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66["ThrowingEmbeddingGenerator"]
+    class flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94["ThrowingSyncBroadcaster"]
+    class flow_type_nexusreader_web_client_program_cs_wasmepubreader_56["WasmEpubReader"]
+    class flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38["WasmKnowledgeService"]
+    class flow_type_nexusreader_web_client_program_cs_webplatformservice_18["WebPlatformService"]
+    flow_file_nexusreader_application_dtos_ai_groundedresponsedto_cs_file_1 --> flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_citationdto_11 : dto CitationDto
+    flow_file_nexusreader_application_dtos_ai_groundedresponsedto_cs_file_1 --> flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_groundedresponsedto_5 : dto GroundedResponseDto
+    flow_file_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_file_1 --> flow_type_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_semanticsearchresultdto_3 : dto SemanticSearchResultDto
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 : model ThrowingBookStorageService
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 : model ThrowingDbContextFactory
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 : model ThrowingEbookRepository
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 : model ThrowingEmbeddingGenerator
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 : model ThrowingSyncBroadcaster
+    click flow_file_nexusreader_application_dtos_ai_groundedresponsedto_cs_file_1 href "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_groundedresponsedto_5 href "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:5:1" "Open source"
+    click flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_citationdto_11 href "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:11:1" "Open source"
+    click flow_file_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_file_1 href "vscode://file/NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_semanticsearchresultdto_3 href "vscode://file/NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs:3:1" "Open source"
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+```
+
+This class-diagram view shows DTO classes (GroundedResponseDto, CitationDto, SemanticSearchResultDto) and Program-level service/test doubles. Use it to inspect DTO shapes and which runtime implementations are wired.
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart LR
+    subgraph layer_application["application"]
+        flow_file_nexusreader_application_dtos_ai_groundedresponsedto_cs_file_1["GroundedResponseDto"]
+        flow_file_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_file_1["SemanticSearchResultDto"]
+        flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_citationdto_11[/"CitationDto"/]
+        flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_groundedresponsedto_5[/"GroundedResponseDto"/]
+        flow_type_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_semanticsearchresultdto_3[/"SemanticSearchResultDto"/]
+        flow_file_nexusreader_application_dtos_ai_groundedresponsedto_cs_file_1 -->|dto CitationDto| flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_citationdto_11
+        flow_file_nexusreader_application_dtos_ai_groundedresponsedto_cs_file_1 -->|dto GroundedResponseDto| flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_groundedresponsedto_5
+        flow_file_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_file_1 -->|dto SemanticSearchResultDto| flow_type_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_semanticsearchresultdto_3
+    end
+    subgraph layer_frontend["frontend"]
+        flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+        flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+        flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+        flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+        flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+        flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+        flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+        flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+        flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+        flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+        flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+        flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+        flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    end
+    click flow_file_nexusreader_application_dtos_ai_groundedresponsedto_cs_file_1 href "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_groundedresponsedto_5 href "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:5:1" "Open source"
+    click flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_citationdto_11 href "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:11:1" "Open source"
+    click flow_file_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_file_1 href "vscode://file/NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_semanticsearchresultdto_3 href "vscode://file/NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs:3:1" "Open source"
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+```
+
+Layer view separates application DTOs from frontend wiring, making it clear which DTOs (AI responses, citations, semantic results) are part of the Application layer and which runtime services the frontend depends on.
+
+```mermaid
+flowchart TD
+    subgraph NexusReader_Infrastructure_RealTime_SyncHub["SyncHub"]
+    end
+    subgraph NexusReader_Infrastructure_Services_EpubReaderService["EpubReaderService"]
+    end
+    subgraph NexusReader_Infrastructure_Services_BookStorageService["BookStorageService"]
+    end
+    flow_file_nexusreader_infrastructure_services_bookstorageservice_cs_file_1["BookStorageService"]
+    flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1["EpubReaderService"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28["OnConnectedAsync"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38["OnDisconnectedAsync"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14["SyncHub"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19["UpdateProgress"]
+    flow_method_nexusreader_infrastructure_services_bookstorageservice_cs_ensuredirectoryexists_66["EnsureDirectoryExists"]
+    flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175["CountWords"]
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_services_bookstorageservice_cs_ensuredirectoryexists_guard_clause_68_68{"Check directory existence"}
+    flow_action_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_guard_clause_177_177{"Empty text check"}
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237{"Evaluates branch condition"}
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1["SyncHub"]
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237 -->|SyncHub| flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|OnConnectedAsync| flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|OnDisconnectedAsync| flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|UpdateProgress| flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19
+    flow_file_nexusreader_infrastructure_services_bookstorageservice_cs_file_1 -->|EnsureDirectoryExists| flow_method_nexusreader_infrastructure_services_bookstorageservice_cs_ensuredirectoryexists_66
+    flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1 -->|CountWords| flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28 -->|Reads repository or persistence state| flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38 -->|Reads repository or persistence state| flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19 -->|Reads repository or persistence state| flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21
+    flow_method_nexusreader_infrastructure_services_bookstorageservice_cs_ensuredirectoryexists_66 -->|create-directory / noop| flow_action_nexusreader_infrastructure_services_bookstorageservice_cs_ensuredirectoryexists_guard_clause_68_68
+    flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175 -->|return 0 / continue| flow_action_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_guard_clause_177_177
+    click flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237 href "vscode://file/NexusReader.Web/Program.cs:237:1" "Open source"
+    click flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:1:1" "Open source"
+    click flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:14:1" "Open source"
+    click flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Services/EpubReaderService.cs:1:1" "Open source"
+    click flow_file_nexusreader_infrastructure_services_bookstorageservice_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Services/BookStorageService.cs:1:1" "Open source"
+    click flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:19:1" "Open source"
+    click flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:21:1" "Open source"
+    click flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:28:1" "Open source"
+    click flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:30:1" "Open source"
+    click flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:38:1" "Open source"
+    click flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:40:1" "Open source"
+    click flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175 href "vscode://file/NexusReader.Infrastructure/Services/EpubReaderService.cs:175:1" "Open source"
+    click flow_action_nexusreader_infrastructure_services_epubreaderservice_cs_countwo
+```
+
+Method-flow focuses on SyncHub and infrastructure services used during ingestion and reader progress updates. It shows UpdateProgress/OnConnectedAsync reading persistence and EpubReaderService/BookStorageService guard clauses relevant to ingestion and counting.
+
+### Key Files
+- NexusReader.Application/Abstractions/Messaging/ICommand.cs
+- NexusReader.Application/Abstractions/Messaging/IQuery.cs
+- NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs
+- NexusReader.Application/Abstractions/Messaging/IQueryHandler.cs
+- NexusReader.Application/Commands/Library/IngestEbookCommand.cs
+- NexusReader.Application/Commands/Library/IngestEbookCommandHandler.cs
+- NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs
+- NexusReader.Application/DTOs/AI/GroundedResponseDto.cs
+- NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs
+- NexusReader.Application/Mappings/MappingConfig.cs
+- NexusReader.Web.Client/Program.cs
+
+<div hidden data-ai-mermaid-metadata-appendix>
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+</div>
+
+---
+
+## See Also
+
+- [Data Layer, EF Core and Repositories](data-and-persistence.md)
+- [Infrastructure Services: Knowledge, AI, Billing, Storage, Epub](infrastructure-services.md)
+- [Real-Time Sync, SignalR and Broadcast](../flows/realtime-and-sync.md)
+- [Security, Identity and Authorization](../flows/security-identity-auth.md)
+- [Blazor WebAssembly Client: hosting, handlers, and platform services](../flows/web-client-wasm.md)
+- [MAUI Mobile Host: App wiring and platform services](maui-mobile.md)
+- [Project Overview and Architecture](../collections/overview.md)
diff --git a/src/.documentation/domains/application-layer.meta.json b/src/.documentation/domains/application-layer.meta.json
new file mode 100644
index 0000000..06ff47d
--- /dev/null
+++ b/src/.documentation/domains/application-layer.meta.json
@@ -0,0 +1,35130 @@
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+        "label": "SubmitAnswerCommand",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "object",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Represents a request to submit an answer for a quiz question carrying the selected and correct indices.",
+        "responsibility": "Represents a request to submit an answer for a quiz question carrying the selected and correct indices.",
+        "technologyHints": [
+          "csharp",
+          "CQRS",
+          "Command"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SubmitAnswerCommand"
+          },
+          {
+            "label": "Shape",
+            "value": "command"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "SelectedIndex",
+            "value": "int required"
+          },
+          {
+            "label": "CorrectIndex",
+            "value": "int required"
+          },
+          {
+            "label": "Domain",
+            "value": "Quiz, Answer"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs:5:1",
+            "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs",
+            "line": 5,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs",
+        "sourceLine": 5,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_application_dtos_ai_groundedresponsedto_cs_file_1",
+        "label": "GroundedResponseDto",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Carries an AI-generated answer and a list of provenance citations back to callers.",
+        "responsibility": "Carries an AI-generated answer and a list of provenance citations back to callers.",
+        "technologyHints": [
+          "csharp",
+          "DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "GroundedResponseDto"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Answer",
+            "value": "string required"
+          },
+          {
+            "label": "Citations",
+            "value": "List<CitationDto> required"
+          },
+          {
+            "label": "Domain",
+            "value": "GroundedResponse, Citation, AI/Knowledge"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:1:1",
+            "path": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_groundedresponsedto_5",
+        "label": "GroundedResponseDto",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Carries an AI-generated answer and a list of provenance citations back to callers.",
+        "responsibility": "Carries an AI-generated answer and a list of provenance citations back to callers.",
+        "technologyHints": [
+          "csharp",
+          "DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "GroundedResponseDto"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Answer",
+            "value": "string required"
+          },
+          {
+            "label": "Citations",
+            "value": "List<CitationDto> required"
+          },
+          {
+            "label": "Domain",
+            "value": "GroundedResponse, Citation, AI/Knowledge"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:5:1",
+            "path": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+            "line": 5,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+        "sourceLine": 5,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_citationdto_11",
+        "label": "CitationDto",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Represents a single provenance item (chunk id, snippet, and source) used to justify the answer.",
+        "responsibility": "Represents a single provenance item (chunk id, snippet, and source) used to justify the answer.",
+        "technologyHints": [
+          "csharp",
+          "DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "GroundedResponseDto"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "3"
+          },
+          {
+            "label": "CitationId",
+            "value": "string required"
+          },
+          {
+            "label": "Snippet",
+            "value": "string required"
+          },
+          {
+            "label": "SourceBook",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "GroundedResponse, Citation, AI/Knowledge"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:11:1",
+            "path": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+            "line": 11,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+        "sourceLine": 11,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_file_1",
+        "label": "SemanticSearchResultDto",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Carries the result of a semantic search (content identifier, snippet, unit type, relevance and optional source/metadata) across application boundaries.",
+        "responsibility": "Carries the result of a semantic search (content identifier, snippet, unit type, relevance and optional source/metadata) across application boundaries.",
+        "technologyHints": [
+          "csharp",
+          "DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SemanticSearchResultDto"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "6"
+          },
+          {
+            "label": "ContentHash",
+            "value": "string required"
+          },
+          {
+            "label": "Snippet",
+            "value": "string required"
+          },
+          {
+            "label": "UnitType",
+            "value": "string?"
+          },
+          {
+            "label": "RelevanceScore",
+            "value": "float required"
+          },
+          {
+            "label": "Domain",
+            "value": "Semantic Search, Search Result, Knowledge Retrieval"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs:1:1",
+            "path": "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_semanticsearchresultdto_3",
+        "label": "SemanticSearchResultDto",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Carries the result of a semantic search (content identifier, snippet, unit type, relevance and optional source/metadata) across application boundaries.",
+        "responsibility": "Carries the result of a semantic search (content identifier, snippet, unit type, relevance and optional source/metadata) across application boundaries.",
+        "technologyHints": [
+          "csharp",
+          "DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SemanticSearchResultDto"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "6"
+          },
+          {
+            "label": "ContentHash",
+            "value": "string required"
+          },
+          {
+            "label": "Snippet",
+            "value": "string required"
+          },
+          {
+            "label": "UnitType",
+            "value": "string?"
+          },
+          {
+            "label": "RelevanceScore",
+            "value": "float required"
+          },
+          {
+            "label": "Domain",
+            "value": "Semantic Search, Search Result, Knowledge Retrieval"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs:3:1",
+            "path": "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs",
+            "line": 3,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs",
+        "sourceLine": 3,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_application_mappings_mappingconfig_cs_file_1",
+        "label": "MappingConfig",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Defines and registers Mapster mapping configuration and the Mapster IMapper into the application's DI container.",
+        "responsibility": "Single extension method that centralizes Mapster mapping registrations (including an explicit mapping for Description) and registers the Mapster config and IMapper in DI for application-wide usage.",
+        "technologyHints": [
+          "csharp",
+          "Mapping/Adapter",
+          "DI service registration",
+          "Extension method for IServiceCollection"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "MappingConfig"
+          },
+          {
+            "label": "Domain",
+            "value": "NexusUser, UserProfileDto, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Mappings/MappingConfig.cs:1:1",
+            "path": "NexusReader.Application/Mappings/MappingConfig.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Mappings/MappingConfig.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/Mappings/MappingConfig.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_mappings_mappingconfig_cs_typeadapterconfig_instance_19",
+        "label": "TypeAdapterConfig (instance)",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Defines and registers Mapster mapping configuration and the Mapster IMapper into the application's DI container.",
+        "responsibility": "Single extension method that centralizes Mapster mapping registrations (including an explicit mapping for Description) and registers the Mapster config and IMapper in DI for application-wide usage.",
+        "technologyHints": [
+          "csharp",
+          "Mapping/Adapter",
+          "DI service registration",
+          "Extension method for IServiceCollection"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "MappingConfig"
+          },
+          {
+            "label": "Domain",
+            "value": "NexusUser, UserProfileDto, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Mappings/MappingConfig.cs:19:1",
+            "path": "NexusReader.Application/Mappings/MappingConfig.cs",
+            "line": 19,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Mappings/MappingConfig.cs",
+        "sourceLine": 19,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/Mappings/MappingConfig.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_mappings_mappingconfig_cs_servicemapper_20",
+        "label": "ServiceMapper",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Defines and registers Mapster mapping configuration and the Mapster IMapper into the application's DI container.",
+        "responsibility": "Single extension method that centralizes Mapster mapping registrations (including an explicit mapping for Description) and registers the Mapster config and IMapper in DI for application-wide usage.",
+        "technologyHints": [
+          "csharp",
+          "Mapping/Adapter",
+          "DI service registration",
+          "Extension method for IServiceCollection"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "MappingConfig"
+          },
+          {
+            "label": "Domain",
+            "value": "NexusUser, UserProfileDto, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Mappings/MappingConfig.cs:20:1",
+            "path": "NexusReader.Application/Mappings/MappingConfig.cs",
+            "line": 20,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Mappings/MappingConfig.cs",
+        "sourceLine": 20,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/Mappings/MappingConfig.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
+        "label": "Program (top-level startup)",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:15:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 15,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 15,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "return",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_application_dtos_ai_groundedresponsedto_cs_file_1",
+        "label": "GroundedResponseDto",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Carries an AI-generated answer and a list of provenance citations back to callers.",
+        "responsibility": "Carries an AI-generated answer and a list of provenance citations back to callers.",
+        "technologyHints": [
+          "csharp",
+          "DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "GroundedResponseDto"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Answer",
+            "value": "string required"
+          },
+          {
+            "label": "Citations",
+            "value": "List<CitationDto> required"
+          },
+          {
+            "label": "Domain",
+            "value": "GroundedResponse, Citation, AI/Knowledge"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:1:1",
+            "path": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_groundedresponsedto_5",
+        "label": "GroundedResponseDto",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Carries an AI-generated answer and a list of provenance citations back to callers.",
+        "responsibility": "Carries an AI-generated answer and a list of provenance citations back to callers.",
+        "technologyHints": [
+          "csharp",
+          "DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "GroundedResponseDto"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Answer",
+            "value": "string required"
+          },
+          {
+            "label": "Citations",
+            "value": "List<CitationDto> required"
+          },
+          {
+            "label": "Domain",
+            "value": "GroundedResponse, Citation, AI/Knowledge"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:5:1",
+            "path": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+            "line": 5,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+        "sourceLine": 5,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_citationdto_11",
+        "label": "CitationDto",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Represents a single provenance item (chunk id, snippet, and source) used to justify the answer.",
+        "responsibility": "Represents a single provenance item (chunk id, snippet, and source) used to justify the answer.",
+        "technologyHints": [
+          "csharp",
+          "DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "GroundedResponseDto"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "3"
+          },
+          {
+            "label": "CitationId",
+            "value": "string required"
+          },
+          {
+            "label": "Snippet",
+            "value": "string required"
+          },
+          {
+            "label": "SourceBook",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "GroundedResponse, Citation, AI/Knowledge"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/DTOs/AI/GroundedResponseDto.cs:11:1",
+            "path": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+            "line": 11,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+        "sourceLine": 11,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_file_1",
+        "label": "SemanticSearchResultDto",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Carries the result of a semantic search (content identifier, snippet, unit type, relevance and optional source/metadata) across application boundaries.",
+        "responsibility": "Carries the result of a semantic search (content identifier, snippet, unit type, relevance and optional source/metadata) across application boundaries.",
+        "technologyHints": [
+          "csharp",
+          "DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SemanticSearchResultDto"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "6"
+          },
+          {
+            "label": "ContentHash",
+            "value": "string required"
+          },
+          {
+            "label": "Snippet",
+            "value": "string required"
+          },
+          {
+            "label": "UnitType",
+            "value": "string?"
+          },
+          {
+            "label": "RelevanceScore",
+            "value": "float required"
+          },
+          {
+            "label": "Domain",
+            "value": "Semantic Search, Search Result, Knowledge Retrieval"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs:1:1",
+            "path": "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_semanticsearchresultdto_3",
+        "label": "SemanticSearchResultDto",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Carries the result of a semantic search (content identifier, snippet, unit type, relevance and optional source/metadata) across application boundaries.",
+        "responsibility": "Carries the result of a semantic search (content identifier, snippet, unit type, relevance and optional source/metadata) across application boundaries.",
+        "technologyHints": [
+          "csharp",
+          "DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SemanticSearchResultDto"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "6"
+          },
+          {
+            "label": "ContentHash",
+            "value": "string required"
+          },
+          {
+            "label": "Snippet",
+            "value": "string required"
+          },
+          {
+            "label": "UnitType",
+            "value": "string?"
+          },
+          {
+            "label": "RelevanceScore",
+            "value": "float required"
+          },
+          {
+            "label": "Domain",
+            "value": "Semantic Search, Search Result, Knowledge Retrieval"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs:3:1",
+            "path": "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs",
+            "line": 3,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs",
+        "sourceLine": 3,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
+        "label": "Program (top-level startup)",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:15:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 15,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 15,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+          {
+            "label": "Shape",
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+            "label": "Fields",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
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+      },
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+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+        ],
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+          "NexusReader.Web.Client/Program.cs"
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+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
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+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
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+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
+        "navigationTargets": [
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+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
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+            "line": 1,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
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+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
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+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
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+          "csharp",
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+            "label": "Action",
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+            "label": "Signature",
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+          },
+          {
+            "label": "Calls",
+            "value": "0"
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+          {
+            "label": "Action:mapping",
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+          },
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+            "label": "Action:repository-read",
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+          },
+          {
+            "label": "Domain",
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+            "label": "Domain",
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+          "csharp",
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+            "label": "Fields",
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+          {
+            "label": "Answer",
+            "value": "string required"
+          },
+          {
+            "label": "Citations",
+            "value": "List<CitationDto> required"
+          },
+          {
+            "label": "Domain",
+            "value": "GroundedResponse, Citation, AI/Knowledge"
+          }
+        ],
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+          {
+            "key": "source",
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+            "tooltip": "Open source"
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+            "label": "Fields",
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+          },
+          {
+            "label": "Answer",
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+          {
+            "label": "Citations",
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+          },
+          {
+            "label": "Domain",
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+        ],
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+            "label": "Fields",
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+            "label": "CitationId",
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+          {
+            "label": "SourceBook",
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+            "label": "Domain",
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+        "responsibility": "Carries the result of a semantic search (content identifier, snippet, unit type, relevance and optional source/metadata) across application boundaries.",
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+        "detailItems": [
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+            "label": "Fields",
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+            "label": "ContentHash",
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+            "label": "UnitType",
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+            "label": "RelevanceScore",
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+          },
+          {
+            "label": "Domain",
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+        ],
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+            "label": "UnitType",
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+          },
+          {
+            "label": "Domain",
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+        "technologyHints": [
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+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Domain",
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+        "nodeRole": "class",
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+          "csharp",
+          "Dependency Injection",
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+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Signature",
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+            "value": "0"
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+            "label": "Action:mapping",
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+            "label": "Shape",
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+            "label": "Fields",
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+          {
+            "label": "Domain",
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+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
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+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Shape",
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+            "label": "Fields",
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+            "label": "Domain",
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+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
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+        "diagramFamily": "class-diagram",
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+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
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+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Shape",
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+            "label": "Fields",
+            "value": "1"
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+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
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+        ],
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+          {
+            "key": "source",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
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+            "label": "Shape",
+            "value": "model"
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+          {
+            "label": "Fields",
+            "value": "1"
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+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "line": 84,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
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+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+          "Dependency Injection",
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+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Domain",
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+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
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+          "NexusReader.Web.Client/Program.cs"
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+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
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+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Shape",
+            "value": "model"
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+          {
+            "label": "Fields",
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+          },
+          {
+            "label": "Domain",
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+        ],
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+            "key": "source",
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+            "path": "NexusReader.Web.Client/Program.cs",
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+        ],
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+        "sourceTargetKind": "dependency",
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+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
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+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Domain",
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+          }
+        ],
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+          {
+            "key": "source",
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+        ],
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
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+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "label": "Domain",
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+        ],
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+            "key": "source",
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+        ],
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+      },
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+        "id": "flow_file_nexusreader_application_dtos_ai_groundedresponsedto_cs_file_1",
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+        "responsibility": "Carries an AI-generated answer and a list of provenance citations back to callers.",
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+          "csharp",
+          "DTO"
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+        "detailItems": [
+          {
+            "label": "Owner",
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+            "label": "Shape",
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+          },
+          {
+            "label": "Fields",
+            "value": "2"
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+          {
+            "label": "Answer",
+            "value": "string required"
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+          {
+            "label": "Citations",
+            "value": "List<CitationDto> required"
+          },
+          {
+            "label": "Domain",
+            "value": "GroundedResponse, Citation, AI/Knowledge"
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+        ],
+        "navigationTargets": [
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+            "key": "source",
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+        "architecturalLayer": "backend",
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+            "label": "Owner",
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+            "label": "Shape",
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+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Answer",
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+          {
+            "label": "Citations",
+            "value": "List<CitationDto> required"
+          },
+          {
+            "label": "Domain",
+            "value": "GroundedResponse, Citation, AI/Knowledge"
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+        ],
+        "navigationTargets": [
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+      },
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+        "id": "flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_citationdto_11",
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+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Represents a single provenance item (chunk id, snippet, and source) used to justify the answer.",
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+          "csharp",
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+        "detailItems": [
+          {
+            "label": "Owner",
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+            "label": "Shape",
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+          {
+            "label": "Fields",
+            "value": "3"
+          },
+          {
+            "label": "CitationId",
+            "value": "string required"
+          },
+          {
+            "label": "Snippet",
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+          },
+          {
+            "label": "SourceBook",
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+          {
+            "label": "Domain",
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+        "navigationTargets": [
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+        "responsibility": "Carries the result of a semantic search (content identifier, snippet, unit type, relevance and optional source/metadata) across application boundaries.",
+        "technologyHints": [
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+        "detailItems": [
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+            "label": "Owner",
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+            "label": "Fields",
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+            "label": "ContentHash",
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+            "label": "Snippet",
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+          },
+          {
+            "label": "UnitType",
+            "value": "string?"
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+          {
+            "label": "RelevanceScore",
+            "value": "float required"
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+          {
+            "label": "Domain",
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+        "navigationTargets": [
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+      },
+      {
+        "id": "flow_type_nexusreader_application_dtos_ai_semanticsearchresultdto_cs_semanticsearchresultdto_3",
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+        "responsibility": "Carries the result of a semantic search (content identifier, snippet, unit type, relevance and optional source/metadata) across application boundaries.",
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+        "detailItems": [
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+          {
+            "label": "Fields",
+            "value": "6"
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+            "label": "ContentHash",
+            "value": "string required"
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+          {
+            "label": "Snippet",
+            "value": "string required"
+          },
+          {
+            "label": "UnitType",
+            "value": "string?"
+          },
+          {
+            "label": "RelevanceScore",
+            "value": "float required"
+          },
+          {
+            "label": "Domain",
+            "value": "Semantic Search, Search Result, Knowledge Retrieval"
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+        ],
+        "navigationTargets": [
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+            "key": "source",
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+      },
+      {
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+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
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+        ],
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+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!app.Environment.IsDevelopment())",
+        "responsibility": "if (!app.Environment.IsDevelopment())",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!app.Environment.IsDevelopment()"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:237:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 237,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 237,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "responsibility": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(mediator: IMediator) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Depends on IMediator @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores mediator @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_mediator",
+            "value": "IMediator required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:1:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "responsibility": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(mediator: IMediator) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Depends on IMediator @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores mediator @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_mediator",
+            "value": "IMediator required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:14:1",
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+            "line": 14,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 14,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1",
+        "label": "EpubReaderService",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "service",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Service that locates EPUB files recorded in the database, parses a requested chapter, splits the chapter into sanitized content blocks, injects AI-action trigger blocks at thresholds, and returns a ReaderPageViewModel for consumption by the application.",
+        "responsibility": "Important behaviors: DB lookup with user guard, file path resolution that handles dev/prod layouts, EPUB parsing via external library, paragraph extraction and HTML sanitization, word-count-based insertion of AI trigger blocks (WordThreshold = 1000), recursive navigation-title lookup, and robust error logging with Result-based failure propagation.",
+        "technologyHints": [
+          "csharp",
+          "Service",
+          "Repository-access (via DbContext)",
+          "Factory (CreateAiTrigger)",
+          "Parsing & sanitization pipeline"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "EpubReaderService"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Chapter/ReadingOrder, ContentBlock (TextSegmentBlock, AiActionTriggerBlock)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/EpubReaderService.cs:1:1",
+            "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_services_bookstorageservice_cs_file_1",
+        "label": "BookStorageService",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Concrete infrastructure implementation of IBookStorageService that persists ebook and cover bytes to filesystem under the web root.",
+        "responsibility": "Concrete infrastructure implementation of IBookStorageService that persists ebook and cover bytes to filesystem under the web root.",
+        "technologyHints": [
+          "csharp",
+          "Storage Service",
+          "Filesystem Persistence",
+          "Wrapper Overload Delegation"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "BookStorageService"
+          },
+          {
+            "label": "Signature",
+            "value": "(environment: IWebHostEnvironment) -> BookStorageService"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores IWebHostEnvironment @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_environment",
+            "value": "IWebHostEnvironment required"
+          },
+          {
+            "label": "Domain",
+            "value": "Book (ebook file), Cover (cover image), Web-root relative static asset paths (uploads, covers)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/BookStorageService.cs:1:1",
+            "path": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/BookStorageService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19",
+        "label": "UpdateProgress",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+        "responsibility": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(pageId: string, ebookId: Guid, progress: double, chapterTitle: string? , chapterIndex: int) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L21"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads user id from connection context @L21"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Requires authenticated user id @L21"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L22"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Dispatches command to application layer @L24"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Includes connection id in command @L24"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:19:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 19,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 19,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+        "responsibility": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:21:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 21,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 21,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28",
+        "label": "OnConnectedAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "When a client connects, adds their connection to a per-user SignalR group (User_{userId}) and calls base connection logic.",
+        "responsibility": "When a client connects, adds their connection to a per-user SignalR group (User_{userId}) and calls base connection logic.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "() -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads Context.UserIdentifier @L30"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L30"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L31"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Only add to group if userId present @L31"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Adds connection to per-user group @L33"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L33"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:28:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 28,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 28,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "var userId = Context.UserIdentifier;",
+        "responsibility": "var userId = Context.UserIdentifier;",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:30:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 30,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 30,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38",
+        "label": "OnDisconnectedAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "When a client disconnects, removes their connection from the per-user SignalR group and invokes base disconnect logic.",
+        "responsibility": "When a client disconnects, removes their connection from the per-user SignalR group and invokes base disconnect logic.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(exception: Exception?) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads Context.UserIdentifier @L40"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L40"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L41"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Only remove from group if userId present @L41"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L43"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Removes connection from per-user group @L43"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:38:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "var userId = Context.UserIdentifier;",
+        "responsibility": "var userId = Context.UserIdentifier;",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:40:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175",
+        "label": "CountWords",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Count words in a string using whitespace separators; returns 0 for null/whitespace.",
+        "responsibility": "Count words in a string using whitespace separators; returns 0 for null/whitespace.",
+        "technologyHints": [
+          "csharp",
+          "Service",
+          "Repository-access (via DbContext)",
+          "Factory (CreateAiTrigger)",
+          "Parsing & sanitization pipeline"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "EpubReaderService"
+          },
+          {
+            "label": "Signature",
+            "value": "(text: string) -> int"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Empty text check @L177"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Guards early exit or rejection path @L177"
+          },
+          {
+            "label": "Action:return",
+            "value": "Returns result @L178"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Split and count words @L178"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Chapter/ReadingOrder, ContentBlock (TextSegmentBlock, AiActionTriggerBlock)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/EpubReaderService.cs:175:1",
+            "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+            "line": 175,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "sourceLine": 175,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_guard_clause_177_177",
+        "label": "Empty text check",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Empty text check",
+        "responsibility": "Important behaviors: DB lookup with user guard, file path resolution that handles dev/prod layouts, EPUB parsing via external library, paragraph extraction and HTML sanitization, word-count-based insertion of AI trigger blocks (WordThreshold = 1000), recursive navigation-title lookup, and robust error logging with Result-based failure propagation.",
+        "technologyHints": [
+          "csharp",
+          "Service",
+          "Repository-access (via DbContext)",
+          "Factory (CreateAiTrigger)",
+          "Parsing & sanitization pipeline"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "EpubReaderService"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "string.IsNullOrWhiteSpace(text)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "return 0, continue"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Chapter/ReadingOrder, ContentBlock (TextSegmentBlock, AiActionTriggerBlock)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/EpubReaderService.cs:177:1",
+            "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+            "line": 177,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "sourceLine": 177,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_services_bookstorageservice_cs_ensuredirectoryexists_66",
+        "label": "EnsureDirectoryExists",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Checks for directory existence and creates it if missing.",
+        "responsibility": "Checks for directory existence and creates it if missing.",
+        "technologyHints": [
+          "csharp",
+          "Storage Service",
+          "Filesystem Persistence",
+          "Wrapper Overload Delegation"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "BookStorageService"
+          },
+          {
+            "label": "Signature",
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+          "layer": "frontend",
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+          "kind": "type",
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+          "layer": "frontend",
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+          "role": "startup",
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+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
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+          "role": "startup",
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+          "role": "startup",
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+          "kind": "action",
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+          "role": "startup",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_416_416",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_418_418",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_419_419",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_424_424",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_439_439",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_441_441",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_442_442",
+          "label": "Evaluates branch condition",
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+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_444_444",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_460_460",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_470_470",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_log_472_472",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+            {
+              "path": "NexusReader.Web/Program.cs",
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_473_473",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_477_477",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_479_479",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_480_480",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+              "path": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_483_483",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_log_485_485",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_485_485",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_486_486",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_490_490",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "evidencePaths": [
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_491_491",
+          "label": "Evaluates branch condition",
+          "role": "startup",
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+          "kind": "action",
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+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_501_501",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_loop_505_505",
+          "label": "Repeats work over a collection or condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "label": "Logs runtime state",
+          "role": "startup",
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+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_512_512",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "label": "Logs runtime state",
+          "role": "startup",
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+          "kind": "action",
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_517_517",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_529_529",
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+          "layer": "application",
+          "kind": "action",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_532_532",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_536_536",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_545_545",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "label": "Reads repository or persistence state",
+          "role": "startup",
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+          "kind": "action",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_551_551",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "evidenceReferences": [
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+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_554_554",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "evidenceReferences": [
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_554_554",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+          "role": "startup",
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+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_summary_getsummaryandquizasync_return_286_286",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+              "path": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          ]
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_map_getknowledgemapasync_return_294_294",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "id": "flow_method_nexusreader_web_program_cs_knowledgeapi_post_verify_groundedness_297",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+        },
+        {
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
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+          "role": "startup",
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+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_verify_groundedness_return_302_302",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "layer": "application",
+          "kind": "method",
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+          "evidenceReferences": [
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+        {
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
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+          "role": "startup",
+          "layer": "application",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "kind": "type",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+          "evidenceReferences": [
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+        {
+          "id": "edge_flow_file_nexusreader_infrastructure_services_bookstorageservice_cs_file_1_flow_method_nexusreader_infrastructure_services_bookstorageservice_cs_ensuredirectoryexists_66_invokes_66",
+          "from": "flow_file_nexusreader_infrastructure_services_bookstorageservice_cs_file_1",
+          "to": "flow_method_nexusreader_infrastructure_services_bookstorageservice_cs_ensuredirectoryexists_66",
+          "semanticLabel": "EnsureDirectoryExists",
+          "visibleLabel": "EnsureDirectoryExists",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/Services/BookStorageService.cs",
+          "sourceLine": 66,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "Checks for directory existence and creates it if missing.",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_method_nexusreader_infrastructure_services_bookstorageservice_cs_ensuredirectoryexists_66_flow_action_nexusreader_infrastructure_services_bookstorageservice_cs_ensuredirectoryexists_guard_clause_68_68_evaluates_condition_68",
+          "from": "flow_method_nexusreader_infrastructure_services_bookstorageservice_cs_ensuredirectoryexists_66",
+          "to": "flow_action_nexusreader_infrastructure_services_bookstorageservice_cs_ensuredirectoryexists_guard_clause_68_68",
+          "semanticLabel": "create-directory / noop",
+          "visibleLabel": "create-directory / noop",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/Services/BookStorageService.cs",
+          "sourceLine": 68,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "if (!Directory.Exists(path)) { Directory.CreateDirectory(path); }",
+            "expandedLabel": "evaluates-condition"
+          }
+        }
+      ],
+      "subgraphs": [
+        {
+          "id": "NexusReader_Infrastructure_RealTime_SyncHub",
+          "label": "SyncHub"
+        },
+        {
+          "id": "NexusReader_Infrastructure_Services_EpubReaderService",
+          "label": "EpubReaderService"
+        },
+        {
+          "id": "NexusReader_Infrastructure_Services_BookStorageService",
+          "label": "BookStorageService"
+        }
+      ],
+      "metadata": {
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+          "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+          "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+          "NexusReader.Application/Abstractions/Messaging/IQueryHandler.cs",
+          "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+          "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+          "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+          "NexusReader.Application/Commands/Library/IngestEbookCommandHandler.cs",
+          "NexusReader.Application/Commands/Library/IngestEbookRequest.cs",
+          "NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs",
+          "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+          "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+          "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs",
+          "NexusReader.Application/DTOs/User/AuthorDto.cs",
+          "NexusReader.Application/DTOs/User/SubscriptionPlanDto.cs",
+          "NexusReader.Application/DTOs/User/UserProfileDto.cs",
+          "NexusReader.Application/Constants/PlanConstants.cs",
+          "NexusReader.Application/Mappings/MappingConfig.cs",
+          "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+          "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQueryHandler.cs",
+          "NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs",
+          "NexusReader.Application/Queries/Library/GetMyEbooksQuery.cs",
+          "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+          "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+          "NexusReader.Application/Queries/Reader/GetReaderPageQueryHandler.cs",
+          "NexusReader.Application/Queries/System/GetInitializationStatusQuery.cs",
+          "NexusReader.Application/Queries/System/GetInitializationStatusQueryHandler.cs",
+          "NexusReader.Application/Queries/User/GetUserProfileQuery.cs",
+          "NexusReader.Application/Queries/User/GetUserProfileQueryHandler.cs",
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs",
+          "NexusReader.Application/Common/AppJsonContext.cs",
+          "NexusReader.Application/DTOs/AI/KnowledgePacket.cs",
+          "NexusReader.Application/DTOs/AI/RelevantContext.cs",
+          "NexusReader.Application/Queries/Graph/GraphViewModels.cs",
+          "NexusReader.Application/Queries/Quiz/QuizViewModels.cs",
+          "NexusReader.Application/Queries/Reader/LocalEpubMetadata.cs",
+          "NexusReader.Application/Queries/Reader/ViewModels.cs"
+        ]
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/src/.documentation/domains/data-and-persistence.md b/src/.documentation/domains/data-and-persistence.md
new file mode 100644
index 0000000..94113cd
--- /dev/null
+++ b/src/.documentation/domains/data-and-persistence.md
@@ -0,0 +1,412 @@
+## Data Layer, EF Core and Repositories
+Overview: This document summarizes how EF Core is configured and used (AppDbContext, migrations, DbContextFactory, DbInitializer) and how repository abstractions (IEbookRepository / EbookRepository) map to DbContext usage.
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_file_nexusreader_web_client_services_wasmepubservice_cs_file_1["WasmEpubReader"]
+    flow_file_nexusreader_web_client_services_webplatformservice_cs_file_1["WebPlatformService"]
+    flow_file_nexusreader_infrastructure_persistence_ebookrepository_cs_file_1["EbookRepository"]
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1["AuthenticationHeaderHandler"]
+    flow_file_nexusreader_web_client_services_wasmknowledgeservice_cs_file_1["WasmKnowledgeService"]
+    flow_type_nexusreader_infrastructure_persistence_ebookrepository_cs_ebookrepository_12[/"EbookRepository"/]
+    flow_type_nexusreader_web_client_handlers_authenticationheaderhandler_cs_authenticationheaderhandler_14[/"AuthenticationHeaderHandler"/]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+    flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+    flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+    flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_file_nexusreader_infrastructure_persistence_ebookrepository_cs_file_1 -->|model EbookRepository| flow_type_nexusreader_infrastructure_persistence_ebookrepository_cs_ebookrepository_12
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1 -->|model AuthenticationHeaderHandler| flow_type_nexusreader_web_client_handlers_authenticationheaderhandler_cs_authenticationheaderhandler_14
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    click flow_file_nexusreader_infrastructure_persistence_ebookrepository_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Persistence/EbookRepository.cs:1:1" "Open source"
+    click flow_type_nexusreader_infrastructure_persistence_ebookrepository_cs_ebookrepository_12 href "vscode://file/NexusReader.Infrastructure/Persistence/EbookRepository.cs:12:1" "Open source"
+    click flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1 href "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_handlers_authenticationheaderhandler_cs_authenticationheaderhandler_14 href "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:14:1" "Open source"
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_file_nexusreader_web_client_services_wasmepubservice_cs_file_1 href "vscode://file/NexusReader.Web.Client/Services/WasmEpubService.cs:1:1" "Open source"
+    click flow_file_nexusreader_web_client_services_wasmknowledgeservice_cs_file_1 href "vscode://file/NexusReader.Web.Client/Services/WasmKnowledgeService.cs:1:1" "Open source"
+    click flow_file_nexusreader_web_client_services_webplatformservice_cs_file_1 href "vscode://file/NexusReader.Web.Client/Services/WebPlatformService.cs:1:1" "Open source"
+```
+This dependency map shows where EbookRepository and other infra types are referenced from Program.cs and client services. It highlights that EbookRepository lives under Infrastructure/Persistence and is wired into the app via DI (or replaced by throwing stubs for WASM).
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    subgraph flow_1_nexusreader_web_client_program_cs["Program.cs"]
+    end
+    subgraph flow_0_nexusreader_web_program_cs["Program.cs"]
+    end
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_method_nexusreader_web_program_cs_program_top_level_29["Program (top-level)"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62{"Evaluates branch condition"}
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66{"Falls back to alternate path"}
+    flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125["Reads repository or persistence state"]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+    flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+    flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+    flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|unknown| flow_method_nexusreader_web_client_program_cs_run_wasm_host_59
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+```
+This startup/service-registration flow shows Program.cs wiring AddInfrastructure / IDbContextFactory and service fallbacks. It documents where AppDbContext is registered for runtime and where throwing design-time stubs are used for WASM.
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    subgraph flow_1_nexusreader_web_client_program_cs["Program.cs"]
+    end
+    subgraph flow_0_nexusreader_web_program_cs["Program.cs"]
+    end
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_method_nexusreader_web_program_cs_program_top_level_29["Program (top-level)"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62{"Evaluates branch condition"}
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66{"Falls back to alternate path"}
+    flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125["Reads repository or persistence state"]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+    flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+    flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+    flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 -->|fallback| flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 -->|Reads repository or persistence state| flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|FindAuthorByNameAsync| flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|GetService| flow_method_nexusreader_web_client_program_cs_getservice_71
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|Program top-level startup| flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|unknown| flow_method_nexusreader_web_client_program_cs_run_wasm_host_59
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    flow_file_nexusreader_web_program_cs_file_1 -->|Program top-level| flow_method_nexusreader_web_program_cs_program_top_level_29
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 -->|Reads repository or persistence state| flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88
+    flow_method_nexusreader_web_client_program_cs_getservice_71 -->|returns null| flow_action_nexusreader_web_client_program_cs_getservice_return_71_71
+    flow_method_nexusreader_web_program_cs_program_top_level_29 -->|true / false| flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+```
+This Program.cs flow diagram details how Program calls into repository reads and startup branches. It shows where runtime services are resolved and where design-time/getservice fallbacks occur.
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    subgraph NexusReader_Web_Client_Program["Program"]
+    end
+    subgraph NexusReader_Web_Program["Program"]
+    end
+    subgraph NexusReader_Application_DependencyInjection["DependencyInjection"]
+    end
+    subgraph NexusReader_Infrastructure_DependencyInjection["DependencyInjection"]
+    end
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_application_dependencyinjection_cs_addapplication_8["AddApplication"]
+    flow_method_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_31["AddInfrastructure"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_method_nexusreader_web_program_cs_program_top_level_29["Program (top-level)"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62{"Evaluates branch condition"}
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66{"Falls back to alternate path"}
+    flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125["Reads repository or persistence state"]
+    flow_action_nexusreader_web_program_cs_program_top_level_repository_read_126_126["Reads repository or persistence state"]
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 -->|fallback| flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 -->|Reads repository or persistence state| flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 -->|AddApplication| flow_method_nexusreader_application_dependencyinjection_cs_addapplication_8
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 -->|AddInfrastructure| flow_method_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_31
+    flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125 -->|Reads repository or persistence state| flow_action_nexusreader_web_program_cs_program_top_level_repository_read_126_126
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 -->|Reads repository or persistence state| flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88
+    flow_method_nexusreader_web_client_program_cs_getservice_71 -->|returns null| flow_action_nexusreader_web_client_program_cs_getservice_return_71_71
+    flow_method_nexusreader_web_program_cs_program_top_level_29 -->|true / false| flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_run_wasm_host_59 href "vscode://file/NexusReader.Web.Client/Program.cs:59:1" "Open source"
+    click flow_file_nexusreader_web_program_cs_file_1 href "vscode://file/NexusReader.Web/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_program_cs_program_top_level_29 href "vscode://file/NexusReader.Web/Program.cs:29:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 href "vscode://file/NexusReader.Web/Program.cs:62:1" "Open source"
+```
+This control-flow view emphasizes AddInfrastructure and AddApplication calls. It indicates where AppDbContext and repositories are registered during startup and when repository reads occur.
+
+```mermaid
+classDiagram
+    class flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    class flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+    class flow_type_nexusreader_web_client_program_cs_configured_httpclient_40["configured HttpClient"]
+    class flow_type_nexusreader_web_client_program_cs_n_a_55["N/A"]
+    class flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33["NexusAuthenticationStateProvider"]
+    class flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74["ThrowingBookStorageService"]
+    class flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49["ThrowingDbContextFactory"]
+    class flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61["ThrowingDbContextFactory"]
+    class flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84["ThrowingEbookRepository"]
+    class flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66["ThrowingEmbeddingGenerator"]
+    class flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94["ThrowingSyncBroadcaster"]
+    class flow_type_nexusreader_web_client_program_cs_wasmepubreader_56["WasmEpubReader"]
+    class flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38["WasmKnowledgeService"]
+    class flow_type_nexusreader_web_client_program_cs_webplatformservice_18["WebPlatformService"]
+    class flow_type_nexusreader_web_program_cs_askquestionrequest_569["AskQuestionRequest"]
+    class flow_type_nexusreader_web_program_cs_groundednessrequest_567["GroundednessRequest"]
+    class flow_type_nexusreader_web_program_cs_knowledgerequest_566["KnowledgeRequest"]
+    class flow_type_nexusreader_web_program_cs_semanticsearchrequest_568["SemanticSearchRequest"]
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 : model ThrowingBookStorageService
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 : model ThrowingDbContextFactory
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 : model ThrowingEbookRepository
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 : model ThrowingEmbeddingGenerator
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 : model ThrowingSyncBroadcaster
+    flow_file_nexusreader_web_program_cs_file_1 --> flow_type_nexusreader_web_program_cs_askquestionrequest_569 : dto AskQuestionRequest
+    flow_file_nexusreader_web_program_cs_file_1 --> flow_type_nexusreader_web_program_cs_groundednessrequest_567 : dto GroundednessRequest
+    flow_file_nexusreader_web_program_cs_file_1 --> flow_type_nexusreader_web_program_cs_knowledgerequest_566 : dto KnowledgeRequest
+    flow_file_nexusreader_web_program_cs_file_1 --> flow_type_nexusreader_web_program_cs_semanticsearchrequest_568 : dto SemanticSearchRequest
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+```
+This class/contract view lists the key runtime and stub classes. It clarifies the IEbookRepository/EbookRepository pairing and the presence of throwing stubs for client builds.
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart LR
+    subgraph layer_frontend["frontend"]
+        flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+        flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+        flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+        flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+        flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+        flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+        flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+        flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+        flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+        flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+        flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+        flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+        flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+        flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+        flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    end
+    subgraph layer_application["application"]
+        flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+        flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62{"Evaluates branch condition"}
+        flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66{"Falls back to alternate path"}
+        flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 -->|fallback| flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66
+    end
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+```
+Layer view separates frontend stubs from the application infra. It shows the contract that client builds use IDbContextFactory / throwing repos while server uses real Infrastructure.
+
+```mermaid
+flowchart TD
+    subgraph NexusReader_Web_Client_Program["Program"]
+    end
+    subgraph NexusReader_Web_Program["Program"]
+    end
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_program_cs_program_top_level_29["Program (top-level)"]
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62{"Evaluates branch condition"}
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66{"Falls back to alternate path"}
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 -->|fallback| flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66
+    flow_method_nexusreader_web_client_program_cs_getservice_71 -->|returns null| flow_action_nexusreader_web_client_program_cs_getservice_return_71_71
+    flow_method_nexusreader_web_program_cs_program_top_level_29 -->|true / false| flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_program_cs_program_top_level_29 href "vscode://file/NexusReader.Web/Program.cs:29:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 href "vscode://file/NexusReader.Web/Program.cs:62:1" "Open source"
+```
+This guardrails diagram highlights fallback paths when services are unavailable. It explains the use of throwing stubs and safe startup branches.
+
+```mermaid
+flowchart TD
+    subgraph NexusReader_Web_Client_Handlers_AuthenticationHeaderHandler["AuthenticationHeaderHandler"]
+    end
+    subgraph NexusReader_Infrastructure_RealTime_SyncHub["SyncHub"]
+    end
+    subgraph NexusReader_Infrastructure_Services_EpubReaderService["EpubReaderService"]
+    end
+    flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1["EpubReaderService"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28["OnConnectedAsync"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38["OnDisconnectedAsync"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14["SyncHub"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19["UpdateProgress"]
+    flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175["CountWords"]
+    flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112["CloneHttpRequestMessageAsync"]
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_guard_clause_177_177{"Empty text check"}
+    flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119{"Evaluates branch condition"}
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237{"Evaluates branch condition"}
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1["SyncHub"]
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1["AuthenticationHeaderHandler"]
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237 -->|SyncHub| flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|OnConnectedAsync| flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|OnDisconnectedAsync| flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|UpdateProgress| flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19
+    flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1 -->|CountWords| flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1 -->|CloneHttpRequestMessageAsync| flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28 -->|Reads repository or persistence state| flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38 -->|Reads repository or persistence state| flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_
+
+... (truncated from 60034 chars)
+```
+This method-flow fragment (truncated) shows which methods access repository/persistence state. It indicates hotspots where EbookRepository/DbContext are used and where seeding or reads happen. To run migrations and seed: use the Infrastructure project with EF CLI (for example: dotnet ef migrations add Name --project NexusReader.Infrastructure and dotnet ef database update) and call DbInitializer.SeedAsync from startup or run a seed routine.
+
+### Key Files
+- NexusReader.Infrastructure/Persistence/AppDbContext.cs  
+- NexusReader.Infrastructure/Persistence/EbookRepository.cs (implements IEbookRepository)  
+- NexusReader.Infrastructure/Persistence/DbInitializer.cs  
+- NexusReader.Infrastructure/DependencyInjection.cs (AddInfrastructure registers AppDbContext/IDbContextFactory)  
+- NexusReader.Infrastructure/Migrations/ (migration history for knowledge/eBook/quiz schemas)  
+- NexusReader.Web.Client/Program.cs (client DI and design-time throwing stubs)
+
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+</div>
+
+---
+
+## See Also
+
+- [Application Layer: Commands, Queries and DTOs](application-layer.md)
+- [Infrastructure Services: Knowledge, AI, Billing, Storage, Epub](infrastructure-services.md)
+- [Real-Time Sync, SignalR and Broadcast](../flows/realtime-and-sync.md)
+- [Project Overview and Architecture](../collections/overview.md)
diff --git a/src/.documentation/domains/data-and-persistence.meta.json b/src/.documentation/domains/data-and-persistence.meta.json
new file mode 100644
index 0000000..243fbb3
--- /dev/null
+++ b/src/.documentation/domains/data-and-persistence.meta.json
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+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "label": "Domain",
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+        ],
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+            "key": "source",
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+            "tooltip": "Open source"
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+          "NexusReader.Web.Client/Program.cs"
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+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+          "NexusReader.Web.Client/Program.cs"
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+        "diagramFamily": "dependency-map",
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+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "label": "Domain",
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+          }
+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
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+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
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+        "diagramId": "dependency_map_graph",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Shape",
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+            "label": "Fields",
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+          },
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+            "label": "Domain",
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+          }
+        ],
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+            "key": "source",
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+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
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+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
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+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
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+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Domain",
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+        ],
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+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
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+            "line": 55,
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+        ],
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
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+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_services_wasmepubservice_cs_file_1",
+        "label": "WasmEpubReader",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Constructs the WASM EPUB reader and stores an HttpClient instance for remote chapter retrieval.",
+        "responsibility": "Constructs the WASM EPUB reader and stores an HttpClient instance for remote chapter retrieval.",
+        "technologyHints": [
+          "csharp",
+          "Client Adapter",
+          "Extractor"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
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+          {
+            "label": "Signature",
+            "value": "(httpClient: HttpClient) -> WasmEpubReader"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Store HttpClient @L14"
+          },
+          {
+            "label": "Domain",
+            "value": "Epub, ReaderPage, LocalEpubMetadata"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Services/WasmEpubService.cs:1:1",
+            "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+            "line": 1,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
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+        "sourceLine": 1,
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+          "NexusReader.Web.Client/Services/WasmEpubService.cs"
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+      },
+      {
+        "id": "flow_file_nexusreader_web_client_services_wasmknowledgeservice_cs_file_1",
+        "label": "WasmKnowledgeService",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
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+        "technologyHints": [
+          "csharp",
+          "HttpClient wrapper",
+          "Facade / integration client"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "WasmKnowledgeService"
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+          {
+            "label": "Domain",
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+        "navigationTargets": [
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+            "key": "source",
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+      },
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+        "id": "flow_file_nexusreader_web_client_services_webplatformservice_cs_file_1",
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+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
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+        "summary": "Concrete platform service for the web client that implements IPlatformService using JS interop.",
+        "responsibility": "Concrete platform service for the web client that implements IPlatformService using JS interop.",
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+          "csharp",
+          "Adapter (platform abstraction)",
+          "Facade (simple wrappers for platform features)"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "WebPlatformService"
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+          {
+            "label": "Shape",
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+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_jsRuntime",
+            "value": "IJSRuntime required"
+          },
+          {
+            "label": "Domain",
+            "value": "DeviceContext, DeviceType, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
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+            "key": "source",
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+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
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+      },
+      {
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+        "label": "Program.cs",
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+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+        "detailItems": [
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+            "label": "Domain",
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+            "key": "source",
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "service",
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
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+        "nodeRole": "method",
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+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+        "detailItems": [
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+            "label": "Signature",
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+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
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+            "key": "source",
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+        "sourceTargetKind": "method",
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
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+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
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+            "tooltip": "Open source"
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+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "return",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
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+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
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+      },
+      {
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+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
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+          },
+          {
+            "label": "Domain",
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+        ],
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+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "value": "0"
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+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
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+          {
+            "label": "Fields",
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+          },
+          {
+            "label": "Domain",
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
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+            "tooltip": "Open source"
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+        ],
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Shape",
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+            "label": "Domain",
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+          }
+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
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+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "label": "Fields",
+            "value": "1"
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+            "label": "ErrorMessage",
+            "value": "string required"
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+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
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+        "label": "ThrowingEbookRepository",
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+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
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+            "label": "Shape",
+            "value": "model"
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+            "label": "Fields",
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+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "label": "Shape",
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+            "label": "Domain",
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+        ],
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+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
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+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Domain",
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
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+            "tooltip": "Open source"
+          }
+        ],
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
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+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
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+            "tooltip": "Open source"
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+        ],
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
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+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
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+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
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+            "tooltip": "Open source"
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+        ],
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
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+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
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+          "csharp",
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+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Fields",
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+          {
+            "label": "Domain",
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+        ],
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+            "key": "source",
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+        ],
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
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+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
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+        "diagramFamily": "primary-runtime",
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+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
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+        "technologyHints": [
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+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+        ],
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "label": "Domain",
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+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
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+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125",
+        "label": "Reads repository or persistence state",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "responsibility": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:125:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 125,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 125,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
+        "label": "Program (top-level startup)",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:15:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 15,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 15,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
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+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "responsibility": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
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+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "line": 125,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 125,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
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+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
+        "label": "Program (top-level startup)",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:15:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 15,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 15,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "responsibility": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:125:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 125,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 125,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_126_126",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "context.Request.Path.StartsWithSegments(\"/identity\") ||",
+        "responsibility": "context.Request.Path.StartsWithSegments(\"/identity\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:126:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 126,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 126,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_dependencyinjection_cs_addapplication_8",
+        "label": "AddApplication",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Extension method that registers application mapping configuration and MediatR handlers, returning the IServiceCollection for chaining.",
+        "responsibility": "Extension method that registers application mapping configuration and MediatR handlers, returning the IServiceCollection for chaining.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection extension",
+          "Service registration"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "DependencyInjection"
+          },
+          {
+            "label": "Signature",
+            "value": "(services: IServiceCollection) -> IServiceCollection"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register mapping configuration @L10"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register MediatR handlers @L11"
+          },
+          {
+            "label": "Action:return",
+            "value": "Return IServiceCollection @L13"
+          },
+          {
+            "label": "Action:return",
+            "value": "Returns result @L13"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/DependencyInjection.cs:8:1",
+            "path": "NexusReader.Application/DependencyInjection.cs",
+            "line": 8,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DependencyInjection.cs",
+        "sourceLine": 8,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/DependencyInjection.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_31",
+        "label": "AddInfrastructure",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Configures and registers infrastructure services and external clients (DBs, AI, vector/graph stores, job processing, authorization, and app-layer implementations) into the DI container.",
+        "responsibility": "Configures and registers infrastructure services and external clients (DBs, AI, vector/graph stores, job processing, authorization, and app-layer implementations) into the DI container.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection / Service Registration",
+          "Factory (DbContextFactory)",
+          "Resilience (retry pipeline)",
+          "Repository"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "DependencyInjection"
+          },
+          {
+            "label": "Signature",
+            "value": "(this IServiceCollection services, IConfiguration configuration) -> IServiceCollection"
+          },
+          {
+            "label": "Calls",
+            "value": "12"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Selects DB provider @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L34"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L44"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Qdrant client registration @L56"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Neo4j driver registration @L60"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L64"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook / Epub processing, AI (chat/embeddings), Vector store (Qdrant)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/DependencyInjection.cs:31:1",
+            "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+            "line": 31,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "sourceLine": 31,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/DependencyInjection.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_knowledgerequest_566",
+        "label": "KnowledgeRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Request DTO carrying free-text input and optional ebook context for knowledge APIs.",
+        "responsibility": "Request DTO carrying free-text input and optional ebook context for knowledge APIs.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Text",
+            "value": "string required"
+          },
+          {
+            "label": "EbookId",
+            "value": "Guid?"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:566:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 566,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 566,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_groundednessrequest_567",
+        "label": "GroundednessRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Request DTO for verifying answer groundedness in a context.",
+        "responsibility": "Request DTO for verifying answer groundedness in a context.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Answer",
+            "value": "string required"
+          },
+          {
+            "label": "Context",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:567:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 567,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 567,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_semanticsearchrequest_568",
+        "label": "SemanticSearchRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "DTO for semantic search requests with a limit.",
+        "responsibility": "DTO for semantic search requests with a limit.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "QueryText",
+            "value": "string required"
+          },
+          {
+            "label": "Limit",
+            "value": "int"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:568:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 568,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 568,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_askquestionrequest_569",
+        "label": "AskQuestionRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "DTO for question-asking APIs including optional ebook context and limit.",
+        "responsibility": "DTO for question-asking APIs including optional ebook context and limit.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "3"
+          },
+          {
+            "label": "Question",
+            "value": "string required"
+          },
+          {
+            "label": "EbookId",
+            "value": "Guid?"
+          },
+          {
+            "label": "Limit",
+            "value": "int"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:569:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 569,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 569,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1",
+        "label": "AuthenticationHeaderHandler",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "DelegatingHandler that attaches JWTs to trusted requests and orchestrates token refresh and retry behavior.",
+        "responsibility": "DelegatingHandler that attaches JWTs to trusted requests and orchestrates token refresh and retry behavior.",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Signature",
+            "value": "(INativeStorageService storageService, IServiceProvider serviceProvider) -> AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Store injected services @L23"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "_storageService",
+            "value": "INativeStorageService required"
+          },
+          {
+            "label": "_serviceProvider",
+            "value": "IServiceProvider required"
+          },
+          {
+            "label": "TokenKey",
+            "value": "const string required"
+          },
+          {
+            "label": "_refreshSemaphore",
+            "value": "SemaphoreSlim required"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:1:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112",
+        "label": "CloneHttpRequestMessageAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Creates a deep-ish clone of an HttpRequestMessage including method, URI, version, headers and buffered content to allow safe retry.",
+        "responsibility": "Creates a deep-ish clone of an HttpRequestMessage including method, URI, version, headers and buffered content to allow safe retry.",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Signature",
+            "value": "(HttpRequestMessage req) -> Task<HttpRequestMessage>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Create new HttpRequestMessage clone @L114"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Copy request content stream and headers @L119"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L119"
+          },
+          {
+            "label": "Action:loop",
+            "value": "Repeats work over a collection or condition @L126"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Copy request headers @L132"
+          },
+          {
+            "label": "Action:loop",
+            "value": "Repeats work over a collection or condition @L132"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:112:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 112,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 112,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (req.Content != null)",
+        "responsibility": "if (req.Content != null)",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "req.Content != null"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:119:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 119,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 119,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!app.Environment.IsDevelopment())",
+        "responsibility": "if (!app.Environment.IsDevelopment())",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!app.Environment.IsDevelopment()"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:237:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 237,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 237,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "responsibility": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(mediator: IMediator) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Depends on IMediator @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores mediator @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_mediator",
+            "value": "IMediator required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:1:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "responsibility": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(mediator: IMediator) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Depends on IMediator @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores mediator @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_mediator",
+            "value": "IMediator required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:14:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 14,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 14,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1",
+        "label": "EpubReaderService",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "service",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Service that locates EPUB files recorded in the database, parses a requested chapter, splits the chapter into sanitized content blocks, injects AI-action trigger blocks at thresholds, and returns a ReaderPageViewModel for consumption by the application.",
+        "responsibility": "Important behaviors: DB lookup with user guard, file path resolution that handles dev/prod layouts, EPUB parsing via external library, paragraph extraction and HTML sanitization, word-count-based insertion of AI trigger blocks (WordThreshold = 1000), recursive navigation-title lookup, and robust error logging with Result-based failure propagation.",
+        "technologyHints": [
+          "csharp",
+          "Service",
+          "Repository-access (via DbContext)",
+          "Factory (CreateAiTrigger)",
+          "Parsing & sanitization pipeline"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "EpubReaderService"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Chapter/ReadingOrder, ContentBlock (TextSegmentBlock, AiActionTriggerBlock)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/EpubReaderService.cs:1:1",
+            "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19",
+        "label": "UpdateProgress",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+        "responsibility": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(pageId: string, ebookId: Guid, progress: double, chapterTitle: string? , chapterIndex: int) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L21"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads user id from connection context @L21"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Requires authenticated user id @L21"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L22"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Dispatches command to application layer @L24"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Includes connection id in command @L24"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:19:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 19,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 19,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+        "responsibility": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:21:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 21,
+            "tooltip": "Open source"
+          }
+        ],
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+          "kind": "action",
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+          "role": "startup",
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+          "role": "startup",
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+          "role": "startup",
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+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_512_512",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_536_536",
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+          "role": "startup",
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+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_545_545",
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+          "role": "startup",
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+          "id": "flow_method_nexusreader_web_program_cs_get_api_epub_ebookid_index_249",
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+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_guard_clause_255_255",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+              "path": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_branch_255_255",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidenceReferences": [
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+          ]
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+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_return_258_258",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "layer": "application",
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+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_repository_read_267_267",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_guard_clause_267_267",
+          "label": "Resolve tenantId from claims with default",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+            "NexusReader.Web/Program.cs"
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+              "path": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "evidencePaths": [
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+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
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+              "path": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "evidenceReferences": [
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "kind": "method",
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+          "evidencePaths": [
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+              "path": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 307,
+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_search_searchlibrarysemanticallyasync_guard_clause_309_309",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+              "path": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_search_searchlibrarysemanticallyasync_branch_309_309",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "NexusReader.Data/Persistence/Migrations/20260513185108_MakeKnowledgeUnitEbookIdNullable.cs",
+          "NexusReader.Data/Persistence/Migrations/20260513185108_MakeKnowledgeUnitEbookIdNullable.Designer.cs",
+          "NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.cs",
+          "NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.Designer.cs"
+        ],
+        "warnings": []
+      }
+    },
+    {
+      "id": "method_flows_graph",
+      "kind": "method-flow",
+      "title": "Method Flow Details",
+      "direction": "TD",
+      "nodes": [
+        {
+          "id": "flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1",
+          "kind": "dependency",
+          "label": "AuthenticationHeaderHandler",
+          "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+          "sourceLine": 1
+        },
+        {
+          "id": "flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112",
+          "kind": "method",
+          "label": "CloneHttpRequestMessageAsync",
+          "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+          "sourceLine": 112
+        },
+        {
+          "id": "flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119",
+          "kind": "step",
+          "label": "Evaluates branch condition",
+          "shape": "diamond",
+          "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+          "sourceLine": 119
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237",
+          "kind": "step",
+          "label": "Evaluates branch condition",
+          "shape": "diamond",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 237
+        },
+        {
+          "id": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+          "kind": "dependency",
+          "label": "SyncHub",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 1
+        },
+        {
+          "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14",
+          "kind": "method",
+          "label": "SyncHub",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 14
+        },
+        {
+          "id": "flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1",
+          "kind": "service",
+          "label": "EpubReaderService",
+          "sourcePath": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+          "sourceLine": 1
+        },
+        {
+          "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19",
+          "kind": "method",
+          "label": "UpdateProgress",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 19
+        },
+        {
+          "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21",
+          "kind": "step",
+          "label": "Reads repository or persistence state",
+          "shape": "rect",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 21
+        },
+        {
+          "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28",
+          "kind": "method",
+          "label": "OnConnectedAsync",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 28
+        },
+        {
+          "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30",
+          "kind": "step",
+          "label": "Reads repository or persistence state",
+          "shape": "rect",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 30
+        },
+        {
+          "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38",
+          "kind": "method",
+          "label": "OnDisconnectedAsync",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 38
+        },
+        {
+          "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40",
+          "kind": "step",
+          "label": "Reads repository or persistence state",
+          "shape": "rect",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 40
+        },
+        {
+          "id": "flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175",
+          "kind": "method",
+          "label": "CountWords",
+          "sourcePath": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+          "sourceLine": 175
+        },
+        {
+          "id": "flow_action_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_guard_clause_177_177",
+          "kind": "step",
+          "label": "Empty text check",
+          "shape": "diamond",
+          "sourcePath": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+          "sourceLine": 177
+        }
+      ],
+      "edges": [
+        {
+          "id": "edge_flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1_flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112_invokes_112",
+          "from": "flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1",
+          "to": "flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112",
+          "semanticLabel": "CloneHttpRequestMessageAsync",
+          "visibleLabel": "CloneHttpRequestMessageAsync",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+          "sourceLine": 112,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "Creates a deep-ish clone of an HttpRequestMessage including method, URI, version, headers and buffered content to allow safe retry.",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112_flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119_evaluates_condition_119",
+          "from": "flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112",
+          "to": "flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119",
+          "semanticLabel": "true / false",
+          "visibleLabel": "true / false",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+          "sourceLine": 119,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "if (req.Content != null)",
+            "expandedLabel": "evaluates-condition"
+          }
+        },
+        {
+          "id": "edge_flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237_flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14_uses_service_247",
+          "from": "flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237",
+          "to": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14",
+          "semanticLabel": "SyncHub",
+          "visibleLabel": "SyncHub",
+          "relation": "uses",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Web/Program.cs",
+          "sourceLine": 247,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "Hub mapping for realtime sync",
+            "expandedLabel": "uses-service"
+          }
+        },
+        {
+          "id": "edge_flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1_flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19_invokes_19",
+          "from": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+          "to": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19",
+          "semanticLabel": "UpdateProgress",
+          "visibleLabel": "UpdateProgress",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 19,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+            "expandedLabel": "handles-route"
+          }
+        },
+        {
+          "id": "edge_flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19_flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21_invokes_21",
+          "from": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19",
+          "to": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21",
+          "semanticLabel": "Reads repository or persistence state",
+          "visibleLabel": "Reads repository or persistence state",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 21,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1_flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28_invokes_28",
+          "from": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+          "to": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28",
+          "semanticLabel": "OnConnectedAsync",
+          "visibleLabel": "OnConnectedAsync",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 28,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "When a client connects, adds their connection to a per-user SignalR group (User_{userId}) and calls base connection logic.",
+            "expandedLabel": "handles-route"
+          }
+        },
+        {
+          "id": "edge_flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28_flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30_invokes_30",
+          "from": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28",
+          "to": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30",
+          "semanticLabel": "Reads repository or persistence state",
+          "visibleLabel": "Reads repository or persistence state",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 30,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "var userId = Context.UserIdentifier;",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1_flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38_invokes_38",
+          "from": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+          "to": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38",
+          "semanticLabel": "OnDisconnectedAsync",
+          "visibleLabel": "OnDisconnectedAsync",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 38,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "When a client disconnects, removes their connection from the per-user SignalR group and invokes base disconnect logic.",
+            "expandedLabel": "handles-route"
+          }
+        },
+        {
+          "id": "edge_flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38_flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40_invokes_40",
+          "from": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38",
+          "to": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40",
+          "semanticLabel": "Reads repository or persistence state",
+          "visibleLabel": "Reads repository or persistence state",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 40,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "var userId = Context.UserIdentifier;",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1_flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175_invokes_175",
+          "from": "flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1",
+          "to": "flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175",
+          "semanticLabel": "CountWords",
+          "visibleLabel": "CountWords",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/Services/EpubReaderService.cs",
+          "sourceLine": 175,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "Count words in a string using whitespace separators; returns 0 for null/whitespace.",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175_flow_action_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_guard_clause_177_177_evaluates_condition_177",
+          "from": "flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175",
+          "to": "flow_action_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_guard_clause_177_177",
+          "semanticLabel": "return 0 / continue",
+          "visibleLabel": "return 0 / continue",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/Services/EpubReaderService.cs",
+          "sourceLine": 177,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "Empty text check",
+            "expandedLabel": "evaluates-condition"
+          }
+        }
+      ],
+      "subgraphs": [
+        {
+          "id": "NexusReader_Web_Client_Handlers_AuthenticationHeaderHandler",
+          "label": "AuthenticationHeaderHandler"
+        },
+        {
+          "id": "NexusReader_Infrastructure_RealTime_SyncHub",
+          "label": "SyncHub"
+        },
+        {
+          "id": "NexusReader_Infrastructure_Services_EpubReaderService",
+          "label": "EpubReaderService"
+        }
+      ],
+      "metadata": {
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Web.Client/Services/WasmEpubService.cs",
+          "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+          "NexusReader.Web.Client/Services/WebPlatformService.cs",
+          "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web/Program.cs",
+          "NexusReader.Application/DependencyInjection.cs",
+          "NexusReader.Infrastructure/DependencyInjection.cs",
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "NexusReader.Data/Migrations/20260428184727_InitialPostgres.cs",
+          "NexusReader.Data/Migrations/20260428184727_InitialPostgres.Designer.cs",
+          "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.cs",
+          "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.Designer.cs",
+          "NexusReader.Data/Migrations/20260429080302_AddQuizResults.cs",
+          "NexusReader.Data/Migrations/20260429080302_AddQuizResults.Designer.cs",
+          "NexusReader.Data/Migrations/20260503175906_FinalNormalizedSubscriptionArchitecture.cs",
+          "NexusReader.Data/Migrations/20260503175906_FinalNormalizedSubscriptionArchitecture.Designer.cs",
+          "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs",
+          "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs",
+          "NexusReader.Data/Migrations/20260510151022_NormalizeAuthor.cs",
+          "NexusReader.Data/Migrations/20260510151022_NormalizeAuthor.Designer.cs",
+          "NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.cs",
+          "NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.Designer.cs",
+          "NexusReader.Data/Migrations/20260510171941_AddEbookLastChapterIndex.cs",
+          "NexusReader.Data/Migrations/20260510171941_AddEbookLastChapterIndex.Designer.cs",
+          "NexusReader.Data/Migrations/AppDbContextModelSnapshot.cs",
+          "NexusReader.Data/Persistence/AppDbContext.cs",
+          "NexusReader.Data/Persistence/AppDbContextFactory.cs",
+          "NexusReader.Data/Persistence/DbInitializer.cs",
+          "NexusReader.Data/Persistence/Migrations/20260513181743_AddEbookReadyFlag.cs",
+          "NexusReader.Data/Persistence/Migrations/20260513181743_AddEbookReadyFlag.Designer.cs",
+          "NexusReader.Data/Persistence/Migrations/20260513183726_FixKnowledgeUnitEbookId.cs",
+          "NexusReader.Data/Persistence/Migrations/20260513183726_FixKnowledgeUnitEbookId.Designer.cs",
+          "NexusReader.Data/Persistence/Migrations/20260513185108_MakeKnowledgeUnitEbookIdNullable.cs",
+          "NexusReader.Data/Persistence/Migrations/20260513185108_MakeKnowledgeUnitEbookIdNullable.Designer.cs",
+          "NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.cs",
+          "NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.Designer.cs"
+        ]
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/src/.documentation/domains/index.md b/src/.documentation/domains/index.md
new file mode 100644
index 0000000..b8b1d65
--- /dev/null
+++ b/src/.documentation/domains/index.md
@@ -0,0 +1,10 @@
+## Domains
+
+This collection groups domains documentation generated from the repository semantic map.
+
+### Documents
+
+- [Application Layer: Commands, Queries and DTOs](application-layer.md): ## Application Layer: Commands, Queries and DTOs  Overview: Describes the Application project's comm...
+- [MAUI Mobile Host: App wiring and platform services](maui-mobile.md): ## MAUI Mobile Host: App wiring and platform services  This short doc explains how the MAUI mobile h...
+- [Data Layer, EF Core and Repositories](data-and-persistence.md): ## Data Layer, EF Core and Repositories Overview: This document summarizes how EF Core is configured...
+- [Infrastructure Services: Knowledge, AI, Billing, Storage, Epub](infrastructure-services.md): ## Infrastructure Services: Knowledge, AI, Billing, Storage, Epub Overview: Core infra services for ...
\ No newline at end of file
diff --git a/src/.documentation/domains/infrastructure-services.md b/src/.documentation/domains/infrastructure-services.md
new file mode 100644
index 0000000..fa8c576
--- /dev/null
+++ b/src/.documentation/domains/infrastructure-services.md
@@ -0,0 +1,465 @@
+## Infrastructure Services: Knowledge, AI, Billing, Storage, Epub
+Overview: Core infra services for semantic search, EPUB processing, storage, billing and platform integration. This document highlights interfaces, implementations, caching behavior and configuration (AiSettings, StripeSettings).
+
+=== DIAGRAM 1: Dependency and Model Map (dependency-map) ===
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    flow_file_nexusreader_infrastructure_helpers_contenthasher_cs_file_1["ContentHasher"]
+    flow_file_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_file_1["JsonRepairHelper"]
+    flow_file_nexusreader_infrastructure_services_billingservice_cs_file_1["BillingService"]
+    flow_file_nexusreader_infrastructure_services_bookstorageservice_cs_file_1["BookStorageService"]
+    flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1["EpubReaderService"]
+    flow_file_nexusreader_infrastructure_services_knowledgeservice_cs_file_1["KnowledgeService"]
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_file_nexusreader_infrastructure_identity_tokenlimithandler_cs_file_1["TokenLimitHandler"]
+    flow_file_nexusreader_infrastructure_identity_tokenlimitrequirement_cs_file_1["TokenLimitRequirement"]
+    flow_file_nexusreader_infrastructure_persistence_ebookrepository_cs_file_1["EbookRepository"]
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1["AuthenticationHeaderHandler"]
+    flow_type_nexusreader_infrastructure_identity_tokenlimitrequirement_cs_tokenlimitrequirement_8[/"TokenLimitRequirement"/]
+    flow_type_nexusreader_infrastructure_persistence_ebookrepository_cs_ebookrepository_12[/"EbookRepository"/]
+    flow_type_nexusreader_infrastructure_services_bookstorageservice_cs_bookstorageservice_10[/"BookStorageService"/]
+    flow_type_nexusreader_web_client_handlers_authenticationheaderhandler_cs_authenticationheaderhandler_14[/"AuthenticationHeaderHandler"/]
+    flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+    flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+    flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+    flow_file_nexusreader_infrastructure_identity_tokenlimitrequirement_cs_file_1 -->|model TokenLimitRequirement| flow_type_nexusreader_infrastructure_identity_tokenlimitrequirement_cs_tokenlimitrequirement_8
+    flow_file_nexusreader_infrastructure_persistence_ebookrepository_cs_file_1 -->|model EbookRepository| flow_type_nexusreader_infrastructure_persistence_ebookrepository_cs_ebookrepository_12
+    flow_file_nexusreader_infrastructure_services_bookstorageservice_cs_file_1 -->|model BookStorageService| flow_type_nexusreader_infrastructure_services_bookstorageservice_cs_bookstorageservice_10
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1 -->|model AuthenticationHeaderHandler| flow_type_nexusreader_web_client_handlers_authenticationheaderhandler_cs_authenticationheaderhandler_14
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+    click flow_file_nexusreader_infrastructure_identity_tokenlimithandler_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Identity/TokenLimitHandler.cs:1:1" "Open source"
+    click flow_file_nexusreader_infrastructure_identity_tokenlimitrequirement_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs:1:1" "Open source"
+    click flow_type_nexusreader_infrastructure_identity_tokenlimitrequirement_cs_tokenlimitrequirement_8 href "vscode://file/NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs:8:1" "Open source"
+    click flow_file_nexusreader_infrastructure_persistence_ebookrepository_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Persistence/EbookRepository.cs:1:1" "Open source"
+    click flow_type_nexusreader_infrastructure_persistence_ebookrepository_cs_ebookrepository_12 href "vscode://file/NexusReader.Infrastructure/Persistence/EbookRepository.cs:12:1" "Open source"
+    click flow_file_nexusreader_infrastructure_services_billingservice_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Services/BillingService.cs:1:1" "Open source"
+    click flow_file_nexusreader_infrastructure_services_bookstorageservice_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Services/BookStorageService.cs:1:1" "Open source"
+    click flow_type_nexusreader_infrastructure_services_bookstorageservice_cs_bookstorageservice_10 href "vscode://file/NexusReader.Infrastructure/Services/BookStorageService.cs:10:1" "Open source"
+    click flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Services/EpubReaderService.cs:1:1" "Open source"
+    click flow_file_nexusreader_infrastructure_services_knowledgeservice_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Services/KnowledgeService.cs:1:1" "Open source"
+    click flow_file_nexusreader_infrastructure_helpers_contenthasher_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Helpers/ContentHasher.cs:1:1" "Open source"
+    click flow_file_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs:1:1" "Open source"
+    click flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1 href "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_handlers_authenticationheaderhandler_cs_authenticationheaderhandler_14 href "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:14:1" "Open source"
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+```
+
+This shows file-level dependencies and models across Infrastructure and Web.Client, highlighting KnowledgeService, EpubReaderService, BookStorageService and BillingService. Clickable nodes reference source files for quick inspection.
+
+=== DIAGRAM 2: Startup and Service Registration Flow (primary-runtime) ===
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    subgraph flow_1_nexusreader_web_client_program_cs["Program.cs"]
+    end
+    subgraph flow_0_nexusreader_web_program_cs["Program.cs"]
+    end
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_file_nexusreader_infrastructure_configuration_aisettings_cs_file_1["AiSettings"]
+    flow_file_nexusreader_infrastructure_configuration_stripesettings_cs_file_1["StripeSettings"]
+    flow_type_nexusreader_infrastructure_configuration_aisettings_cs_aisettings_3[/"AiSettings"/]
+    flow_type_nexusreader_infrastructure_configuration_stripesettings_cs_stripesettings_3[/"StripeSettings"/]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+    flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+    flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+    flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|unknown| flow_method_nexusreader_web_client_program_cs_run_wasm_host_59
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_run_wasm_host_59 href "vscode://file/NexusReader.Web.Client/Program.cs:59:1" "Open source"
+    click flow_file_nexusreader_infrastructure_configuration_aisettings_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Configuration/AiSettings.cs:1:1" "Open source"
+    click flow_type_nexusreader_infrastructure_configuration_aisettings_cs_aisettings_3 href "vscode://file/NexusReader.Infrastructure/Configuration/AiSettings.cs:3:1" "Open source"
+    click flow_file_nexusreader_infrastructure_configuration_stripesettings_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Configuration/StripeSettings.cs:1:1" "Open source"
+    click flow_type_nexusreader_infrastructure_configuration_stripesettings_cs_stripesettings_3 href "vscode://file/NexusReader.Infrastructure/Configuration/StripeSettings.cs:3:1" "Open source"
+    click flow_file_nexusreader_web_program_cs_file_1 href "vscode://file/NexusReader.Web/Program.cs:1:1" "Open source"
+```
+
+This diagram emphasizes startup wiring: AiSettings/StripeSettings are loaded and WASM client services (WasmEpubReader, WasmKnowledgeService) are registered. It maps DI tokens (IEpubReader, IKnowledgeService, IPlatformService) to concrete platform implementations.
+
+=== DIAGRAM 3: Program.cs Flow (primary-runtime) ===
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    subgraph flow_1_nexusreader_web_client_program_cs["Program.cs"]
+    end
+    subgraph flow_0_nexusreader_web_program_cs["Program.cs"]
+    end
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_file_nexusreader_infrastructure_configuration_aisettings_cs_file_1["AiSettings"]
+    flow_file_nexusreader_infrastructure_configuration_stripesettings_cs_file_1["StripeSettings"]
+    flow_type_nexusreader_infrastructure_configuration_aisettings_cs_aisettings_3[/"AiSettings"/]
+    flow_type_nexusreader_infrastructure_configuration_stripesettings_cs_stripesettings_3[/"StripeSettings"/]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+    flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+    flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+    flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_file_nexusreader_infrastructure_configuration_aisettings_cs_file_1 -->|dto AiSettings| flow_type_nexusreader_infrastructure_configuration_aisettings_cs_aisettings_3
+    flow_file_nexusreader_infrastructure_configuration_stripesettings_cs_file_1 -->|dto StripeSettings| flow_type_nexusreader_infrastructure_configuration_stripesettings_cs_stripesettings_3
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|FindAuthorByNameAsync| flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|GetService| flow_method_nexusreader_web_client_program_cs_getservice_71
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|Program top-level startup| flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|unknown| flow_method_nexusreader_web_client_program_cs_run_wasm_host_59
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 -->|Reads repository or persistence state| flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88
+    flow_method_nexusreader_web_client_program_cs_getservice_71 -->|returns null| flow_action_nexusreader_web_client_program_cs_getservice_return_71_71
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_run_wasm_host_59 href "vscode://file/NexusReader.Web.Client/Program.cs:59:1" "Open source"
+    click flow_file_nexusreader_infrastructure_configuration_aisettings_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Configuration/AiSettings.cs:1:1" "Open source"
+    click flow_type_nexusreader_infrastructure_configuration_aisettings_cs_aisettings_3 href "vscode://file/NexusReader.Infrastructure/Configuration/AiSettings.cs:3:1" "Open source"
+    click flow_file_nexusreader_infrastructure_configuration_stripesettings_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Configuration/StripeSettings.cs:1:1" "Open source"
+    click flow_type_nexusreader_infrastructure_configuration_stripesettings_cs_stripesettings_3 href "vscode://file/NexusReader.Infrastructure/Configuration/StripeSettings.cs:3:1" "Open source"
+    click flow_file_nexusreader_web_program_cs_file_1 href "vscode://file/NexusReader.Web/Program.cs:1:1" "Open source"
+```
+
+This flow maps startup functions and method interactions (FindAuthorByNameAsync, GetService) to repository reads and DI results. It underlines where AiSettings/StripeSettings are consumed.
+
+=== DIAGRAM 4: Program.cs Execution Control Flow (control-flow) ===
+```mermaid
+flowchart TD
+    subgraph NexusReader_Web_Client_Program["Program"]
+    end
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 -->|Reads repository or persistence state| flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88
+    flow_method_nexusreader_web_client_program_cs_getservice_71 -->|returns null| flow_action_nexusreader_web_client_program_cs_getservice_return_71_71
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_run_wasm_host_59 href "vscode://file/NexusReader.Web.Client/Program.cs:59:1" "Open source"
+    click flow_file_nexusreader_web_program_cs_file_1 href "vscode://file/NexusReader.Web/Program.cs:1:1" "Open source"
+```
+
+Control-flow view highlights runtime branches and repository read points for tracing execution during startup and WASM host runs.
+
+=== DIAGRAM 5: Program.cs Contracts and Entities (class-diagram) ===
+```mermaid
+classDiagram
+    class flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    class flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+    class flow_file_nexusreader_infrastructure_configuration_aisettings_cs_file_1["AiSettings"]
+    class flow_file_nexusreader_infrastructure_configuration_stripesettings_cs_file_1["StripeSettings"]
+    class flow_type_nexusreader_infrastructure_configuration_aisettings_cs_aisettings_3["AiSettings"]
+    class flow_type_nexusreader_infrastructure_configuration_stripesettings_cs_stripesettings_3["StripeSettings"]
+    class flow_type_nexusreader_web_client_program_cs_configured_httpclient_40["configured HttpClient"]
+    class flow_type_nexusreader_web_client_program_cs_n_a_55["N/A"]
+    class flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33["NexusAuthenticationStateProvider"]
+    class flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74["ThrowingBookStorageService"]
+    class flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49["ThrowingDbContextFactory"]
+    class flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61["ThrowingDbContextFactory"]
+    class flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84["ThrowingEbookRepository"]
+    class flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66["ThrowingEmbeddingGenerator"]
+    class flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94["ThrowingSyncBroadcaster"]
+    class flow_type_nexusreader_web_client_program_cs_wasmepubreader_56["WasmEpubReader"]
+    class flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38["WasmKnowledgeService"]
+    class flow_type_nexusreader_web_client_program_cs_webplatformservice_18["WebPlatformService"]
+    class flow_type_nexusreader_web_program_cs_groundednessrequest_567["GroundednessRequest"]
+    class flow_type_nexusreader_web_program_cs_knowledgerequest_566["KnowledgeRequest"]
+    flow_file_nexusreader_infrastructure_configuration_aisettings_cs_file_1 --> flow_type_nexusreader_infrastructure_configuration_aisettings_cs_aisettings_3 : dto AiSettings
+    flow_file_nexusreader_infrastructure_configuration_stripesettings_cs_file_1 --> flow_type_nexusreader_infrastructure_configuration_stripesettings_cs_stripesettings_3 : dto StripeSettings
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 : model ThrowingBookStorageService
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 : model ThrowingDbContextFactory
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 : model ThrowingEbookRepository
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 : model ThrowingEmbeddingGenerator
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 : model ThrowingSyncBroadcaster
+    flow_file_nexusreader_web_program_cs_file_1 --> flow_type_nexusreader_web_program_cs_groundednessrequest_567 : dto GroundednessRequest
+    flow_file_nexusreader_web_program_cs_file_1 --> flow_type_nexusreader_web_program_cs_knowledgerequest_566 : dto KnowledgeRequest
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_file_nexusreader_infrastructure_configuration_aisettings_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Configuration/AiSettings.cs:1:1" "Open source"
+    click flow_type_nexusreader_infrastructure_configuration_aisettings_cs_aisettings_3 href "vscode://file/NexusReader.Infrastructure/Configuration/AiSettings.cs:3:1" "Open source"
+    click flow_file_nexusreader_infrastructure_configuration_stripesettings_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Configuration/StripeSettings.cs:1:1" "Open source"
+    click flow_type_nexusreader_infrastructure_configuration_stripesettings_cs_stripesettings_3 href "vscode://file/NexusReader.Infrastructure/Configuration/StripeSettings.cs:3:1" "Open source"
+    click flow_file_nexusreader_web_program_cs_file_1 href "vscode://file/NexusReader.Web/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_program_cs_knowledgerequest_566 href "vscode://file/NexusReader.Web/Program.cs:566:1" "Open source"
+    click flow_type_nexusreader_web_program_cs_groundednessrequest_567 href "vscode://file/NexusReader.Web/Program.cs:567:1" "Open source"
+```
+
+Class view shows DTOs (AiSettings, StripeSettings), client-side stubs and concrete Wasm implementations, clarifying contract-to-implementation mapping in startup.
+
+=== DIAGRAM 6: Program.cs Layer View (dependency-map) ===
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart LR
+    subgraph layer_frontend["frontend"]
+        flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+        flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+        flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+        flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+        flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+        flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+        flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+        flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+        flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+        flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+        flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+        flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+        flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+        flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+        flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    end
+    subgraph layer_infrastructure["infrastructure"]
+        flow_file_nexusreader_infrastructure_configuration_aisettings_cs_file_1["AiSettings"]
+        flow_file_nexusreader_infrastructure_configuration_stripesettings_cs_file_1["StripeSettings"]
+        flow_type_nexusreader_infrastructure_configuration_aisettings_cs_aisettings_3[/"AiSettings"/]
+        flow_file_nexusreader_infrastructure_configuration_aisettings_cs_file_1 -->|dto AiSettings| flow_type_nexusreader_infrastructure_configuration_aisettings_cs_aisettings_3
+    end
+    subgraph layer_application["application"]
+    end
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_file_nexusreader_infrastructure_configuration_aisettings_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Configuration/AiSettings.cs:1:1" "Open source"
+    click flow_type_nexusreader_infrastructure_configuration_aisettings_cs_aisettings_3 href "vscode://file/NexusReader.Infrastructure/Configuration/AiSettings.cs:3:1" "Open source"
+    click flow_file_nexusreader_infrastructure_configuration_stripesettings_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Configuration/StripeSettings.cs:1:1" "Open source"
+```
+
+Layered diagram separates frontend WASM clients from infrastructure config; useful for seeing platform-specific implementations and where Ai/Stripe configs are loaded.
+
+=== DIAGRAM 7: Method Flow Details (method-flow) ===
+```mermaid
+flowchart TD
+    subgraph NexusReader_Infrastructure_Helpers_ContentHasher["ContentHasher"]
+    end
+    subgraph NexusReader_Infrastructure_Helpers_JsonRepairHelper["JsonRepairHelper"]
+    end
+    subgraph NexusReader_Infrastructure_RealTime_SyncHub["SyncHub"]
+    end
+    flow_file_nexusreader_infrastructure_helpers_contenthasher_cs_file_1["ContentHasher"]
+    flow_file_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_file_1["JsonRepairHelper"]
+    flow_method_nexusreader_infrastructure_helpers_contenthasher_cs_computehash_9["ComputeHash"]
+    flow_method_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_repair_8["Repair"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28["OnConnectedAsync"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38["OnDisconnectedAsync"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14["SyncHub"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19["UpdateProgress"]
+    flow_action_nexusreader_infrastructure_helpers_contenthasher_cs_computehash_branch_11_11{"Evaluates branch condition"}
+    flow_action_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_repair_guard_clause_10_10{"Guards early exit or rejection path"}
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_askquestionasync_repository_read_717_717["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_executeairequestandcacheasync_guard_clause_167_167{"Guards early exit or rejection path"}
+    flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_getknowledgeinternalasync_guard_clause_83_83{"Guards early exit or rejection path"}
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237{"Evaluates branch condition"}
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1["SyncHub"]
+    flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_askquestionasync_repository_read_717_717 -->|JsonRepairHelper.Repair| flow_method_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_repair_8
+    flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_executeairequestandcacheasync_guard_clause_167_167 -->|JsonRepairHelper.Repair| flow_method_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_repair_8
+    flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_getknowledgeinternalasync_guard_clause_83_83 -->|ContentHasher.ComputeHash| flow_method_nexusreader_infrastructure_helpers_contenthasher_cs_computehash_9
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237 -->|SyncHub| flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14
+    flow_file_nexusreader_infrastructure_helpers_contenthasher_cs_file_1 -->|ComputeHash| flow_method_nexusreader_infrastructure_helpers_contenthasher_cs_computehash_9
+    flow_file_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_file_1 -->|Repair| flow_method_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_repair_8
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|OnConnectedAsync| flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|OnDisconnectedAsync| flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|UpdateProgress| flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19
+    flow_method_nexusreader_infrastructure_helpers_contenthasher_cs_computehash_9 -->|true / false| flow_action_nexusreader_infrastructure_helpers_contenthasher_cs_computehash_branch_11_11
+    flow_method_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_repair_8 -->|exit / continue| flow_action_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_repair_guard_clause_10_10
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28 -->|Reads repository or persistence state| flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38 -->|Reads repository or persistence state| flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19 -->|Reads repository or persistence state| flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21
+    click flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_getknowledgeinternalasync_guard_clause_83_83 href "vscode://file/NexusReader.Infrastructure/Services/KnowledgeService.cs:83:1" "Open source"
+    click flow_file_nexusreader_infrastructure_helpers_contenthasher_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Helpers/ContentHasher.cs:1:1" "Open source"
+    click flow_method_nexusreader_infrastructure_helpers_contenthasher_cs_computehash_9 href "vscode://file/NexusReader.Infrastructure/Helpers/ContentHasher.cs:9:1" "Open source"
+    click flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_executeairequestandcacheasync_guard_clause_167_167 href "vscode://file/NexusReader.Infrastructure/Services/KnowledgeService.cs:167:1" "Open source"
+    click flow_file_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs:1:1" "Open source"
+    click flow_method_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_repair_8 href "vscode://file/NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs:8:1" "Open source"
+    click flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_askquestionasync_repository_read_717_717 href "vscode://file/NexusReader.Infrastructure/Services/KnowledgeService.cs:717:1" "Open source"
+    click flow_action_nexusreader_infrastructure_helpers_contenthasher_cs_computehash_branch_11_11 href "vscode://file/NexusReader.Infrastructure/Helpers/ContentHasher.cs:11:1" "Open source"
+    click flow_action_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_repair_guard_clause_10_10 href "vscode://file/NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs:10:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237 href "vscode://file/NexusReader.Web/Program.cs:237:1" "Open source"
+    click flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:1:1" "Open source"
+    click flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:14:1" "Open source"
+    click flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:19:1" "Open source"
+    click flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:21:1" "Open source"
+    click flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:28:1" "Open source"
+    flow_action
+
+... (truncated from 56815 chars)
+```
+
+This connects KnowledgeService logic to helpers: ContentHasher computes hashes used to key KnowledgePacket caching, and JsonRepairHelper guards AI response parsing. It also shows repository reads and guard clauses; diagram output is truncated—see source files for full method flows.
+
+### Key Files
+- NexusReader.Infrastructure/Services/KnowledgeService.cs
+- NexusReader.Infrastructure/Services/EpubReaderService.cs
+- NexusReader.Infrastructure/Services/BookStorageService.cs
+- NexusReader.Infrastructure/Services/BillingService.cs
+- NexusReader.Infrastructure/Configuration/AiSettings.cs
+- NexusReader.Infrastructure/Configuration/StripeSettings.cs
+- NexusReader.Infrastructure/Helpers/ContentHasher.cs
+- NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs
+- NexusReader.Infrastructure/Persistence/EbookRepository.cs
+- NexusReader.Web.Client/Program.cs
+- NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs
+
+<div hidden data-ai-mermaid-metadata-appendix>
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+</div>
+
+---
+
+## See Also
+
+- [Data Layer, EF Core and Repositories](data-and-persistence.md)
+- [Application Layer: Commands, Queries and DTOs](application-layer.md)
+- [Security, Identity and Authorization](../flows/security-identity-auth.md)
+- [Real-Time Sync, SignalR and Broadcast](../flows/realtime-and-sync.md)
+- [Project Overview and Architecture](../collections/overview.md)
+- [Business Overview](../business/business-overview.md)
diff --git a/src/.documentation/domains/infrastructure-services.meta.json b/src/.documentation/domains/infrastructure-services.meta.json
new file mode 100644
index 0000000..bd3d810
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+++ b/src/.documentation/domains/infrastructure-services.meta.json
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+          "Host/Startup bootstrap",
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+            "label": "Domain",
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+          "Host/Startup bootstrap",
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+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Fields",
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+            "label": "Domain",
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+        "nodeRole": "class",
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+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
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+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+        "nodeRole": "class",
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+        "architecturalLayer": "backend",
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+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "label": "Shape",
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+            "label": "Fields",
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+            "label": "ErrorMessage",
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+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+          {
+            "key": "source",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
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+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
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+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+            "value": "string required"
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+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
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+            "key": "source",
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+            "line": 84,
+            "tooltip": "Open source"
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
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+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "label": "Shape",
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+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
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+            "key": "source",
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+            "tooltip": "Open source"
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+        ],
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
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+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
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+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Domain",
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+            "key": "source",
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+        ],
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
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+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
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+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Domain",
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+        ],
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+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
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+        ],
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
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+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
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+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "label": "Domain",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
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+        "nodeRole": "dependency",
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+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
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+          "Null/Throwing stub (platform-specific feature gating)"
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+            "key": "source",
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
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+        "nodeRole": "class",
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+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Fields",
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+          },
+          {
+            "label": "Domain",
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+        ],
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+            "key": "source",
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+            "tooltip": "Open source"
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
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+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "key": "source",
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+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_configuration_aisettings_cs_file_1",
+        "label": "AiSettings",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "responsibility": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "technologyHints": [
+          "csharp",
+          "Options Pattern",
+          "Configuration POCO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AiSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "8"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ApiKey",
+            "value": "string"
+          },
+          {
+            "label": "Model",
+            "value": "string"
+          },
+          {
+            "label": "EmbeddingModel",
+            "value": "string"
+          },
+          {
+            "label": "Domain",
+            "value": "AI configuration, LLM model selection, Embeddings"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Configuration/AiSettings.cs:1:1",
+            "path": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Configuration/AiSettings.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_infrastructure_configuration_aisettings_cs_aisettings_3",
+        "label": "AiSettings",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "responsibility": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "technologyHints": [
+          "csharp",
+          "Options Pattern",
+          "Configuration POCO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AiSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "8"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ApiKey",
+            "value": "string"
+          },
+          {
+            "label": "Model",
+            "value": "string"
+          },
+          {
+            "label": "EmbeddingModel",
+            "value": "string"
+          },
+          {
+            "label": "Domain",
+            "value": "AI configuration, LLM model selection, Embeddings"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Configuration/AiSettings.cs:3:1",
+            "path": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+            "line": 3,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+        "sourceLine": 3,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Configuration/AiSettings.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_configuration_stripesettings_cs_file_1",
+        "label": "StripeSettings",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Configuration DTO that holds Stripe product identifiers and the configuration section key.",
+        "responsibility": "Configuration DTO that holds Stripe product identifiers and the configuration section key.",
+        "technologyHints": [
+          "csharp",
+          "Options pattern",
+          "Configuration DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "StripeSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ProProductId",
+            "value": "string required"
+          },
+          {
+            "label": "BasicProductId",
+            "value": "string required"
+          },
+          {
+            "label": "FreeProductId",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Stripe, ProductId"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Configuration/StripeSettings.cs:1:1",
+            "path": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Configuration/StripeSettings.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_infrastructure_configuration_stripesettings_cs_stripesettings_3",
+        "label": "StripeSettings",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Configuration DTO that holds Stripe product identifiers and the configuration section key.",
+        "responsibility": "Configuration DTO that holds Stripe product identifiers and the configuration section key.",
+        "technologyHints": [
+          "csharp",
+          "Options pattern",
+          "Configuration DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "StripeSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ProProductId",
+            "value": "string required"
+          },
+          {
+            "label": "BasicProductId",
+            "value": "string required"
+          },
+          {
+            "label": "FreeProductId",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Stripe, ProductId"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Configuration/StripeSettings.cs:3:1",
+            "path": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+            "line": 3,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+        "sourceLine": 3,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Configuration/StripeSettings.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
+        "label": "Program (top-level startup)",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:15:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 15,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 15,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_configuration_aisettings_cs_file_1",
+        "label": "AiSettings",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "responsibility": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "technologyHints": [
+          "csharp",
+          "Options Pattern",
+          "Configuration POCO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AiSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "8"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ApiKey",
+            "value": "string"
+          },
+          {
+            "label": "Model",
+            "value": "string"
+          },
+          {
+            "label": "EmbeddingModel",
+            "value": "string"
+          },
+          {
+            "label": "Domain",
+            "value": "AI configuration, LLM model selection, Embeddings"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "path": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Infrastructure/Configuration/AiSettings.cs"
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+      },
+      {
+        "id": "flow_type_nexusreader_infrastructure_configuration_aisettings_cs_aisettings_3",
+        "label": "AiSettings",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "responsibility": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "technologyHints": [
+          "csharp",
+          "Options Pattern",
+          "Configuration POCO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AiSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "8"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ApiKey",
+            "value": "string"
+          },
+          {
+            "label": "Model",
+            "value": "string"
+          },
+          {
+            "label": "EmbeddingModel",
+            "value": "string"
+          },
+          {
+            "label": "Domain",
+            "value": "AI configuration, LLM model selection, Embeddings"
+          }
+        ],
+        "navigationTargets": [
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+            "key": "source",
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+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Configuration/AiSettings.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_configuration_stripesettings_cs_file_1",
+        "label": "StripeSettings",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Configuration DTO that holds Stripe product identifiers and the configuration section key.",
+        "responsibility": "Configuration DTO that holds Stripe product identifiers and the configuration section key.",
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+          "csharp",
+          "Options pattern",
+          "Configuration DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "StripeSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ProProductId",
+            "value": "string required"
+          },
+          {
+            "label": "BasicProductId",
+            "value": "string required"
+          },
+          {
+            "label": "FreeProductId",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Stripe, ProductId"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Configuration/StripeSettings.cs:1:1",
+            "path": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Configuration/StripeSettings.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_infrastructure_configuration_stripesettings_cs_stripesettings_3",
+        "label": "StripeSettings",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Configuration DTO that holds Stripe product identifiers and the configuration section key.",
+        "responsibility": "Configuration DTO that holds Stripe product identifiers and the configuration section key.",
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+          "csharp",
+          "Options pattern",
+          "Configuration DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "StripeSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ProProductId",
+            "value": "string required"
+          },
+          {
+            "label": "BasicProductId",
+            "value": "string required"
+          },
+          {
+            "label": "FreeProductId",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Stripe, ProductId"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "line": 3,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Infrastructure/Configuration/StripeSettings.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
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+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
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+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
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+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
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+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
+        "label": "Program (top-level startup)",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:15:1",
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 15,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
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+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
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+        ],
+        "confidence": "high",
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+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Domain",
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+          }
+        ],
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+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
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+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_configuration_aisettings_cs_file_1",
+        "label": "AiSettings",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "responsibility": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "technologyHints": [
+          "csharp",
+          "Options Pattern",
+          "Configuration POCO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AiSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "8"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ApiKey",
+            "value": "string"
+          },
+          {
+            "label": "Model",
+            "value": "string"
+          },
+          {
+            "label": "EmbeddingModel",
+            "value": "string"
+          },
+          {
+            "label": "Domain",
+            "value": "AI configuration, LLM model selection, Embeddings"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Configuration/AiSettings.cs:1:1",
+            "path": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Configuration/AiSettings.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_infrastructure_configuration_aisettings_cs_aisettings_3",
+        "label": "AiSettings",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "responsibility": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "technologyHints": [
+          "csharp",
+          "Options Pattern",
+          "Configuration POCO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AiSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "8"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ApiKey",
+            "value": "string"
+          },
+          {
+            "label": "Model",
+            "value": "string"
+          },
+          {
+            "label": "EmbeddingModel",
+            "value": "string"
+          },
+          {
+            "label": "Domain",
+            "value": "AI configuration, LLM model selection, Embeddings"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "line": 3,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Configuration/AiSettings.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_configuration_stripesettings_cs_file_1",
+        "label": "StripeSettings",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Configuration DTO that holds Stripe product identifiers and the configuration section key.",
+        "responsibility": "Configuration DTO that holds Stripe product identifiers and the configuration section key.",
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+          "csharp",
+          "Options pattern",
+          "Configuration DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "StripeSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ProProductId",
+            "value": "string required"
+          },
+          {
+            "label": "BasicProductId",
+            "value": "string required"
+          },
+          {
+            "label": "FreeProductId",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Stripe, ProductId"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Configuration/StripeSettings.cs:1:1",
+            "path": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+            "line": 1,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Configuration/StripeSettings.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_infrastructure_configuration_stripesettings_cs_stripesettings_3",
+        "label": "StripeSettings",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
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+          "csharp",
+          "Options pattern",
+          "Configuration DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "StripeSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ProProductId",
+            "value": "string required"
+          },
+          {
+            "label": "BasicProductId",
+            "value": "string required"
+          },
+          {
+            "label": "FreeProductId",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Stripe, ProductId"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Configuration/StripeSettings.cs:3:1",
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+            "line": 3,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+        "sourceLine": 3,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Configuration/StripeSettings.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_knowledgerequest_566",
+        "label": "KnowledgeRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Request DTO carrying free-text input and optional ebook context for knowledge APIs.",
+        "responsibility": "Request DTO carrying free-text input and optional ebook context for knowledge APIs.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Text",
+            "value": "string required"
+          },
+          {
+            "label": "EbookId",
+            "value": "Guid?"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:566:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 566,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 566,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_groundednessrequest_567",
+        "label": "GroundednessRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Request DTO for verifying answer groundedness in a context.",
+        "responsibility": "Request DTO for verifying answer groundedness in a context.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Answer",
+            "value": "string required"
+          },
+          {
+            "label": "Context",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:567:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 567,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 567,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
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+          }
+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_configuration_aisettings_cs_file_1",
+        "label": "AiSettings",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "responsibility": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "technologyHints": [
+          "csharp",
+          "Options Pattern",
+          "Configuration POCO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AiSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "8"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ApiKey",
+            "value": "string"
+          },
+          {
+            "label": "Model",
+            "value": "string"
+          },
+          {
+            "label": "EmbeddingModel",
+            "value": "string"
+          },
+          {
+            "label": "Domain",
+            "value": "AI configuration, LLM model selection, Embeddings"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Configuration/AiSettings.cs:1:1",
+            "path": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Configuration/AiSettings.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_infrastructure_configuration_aisettings_cs_aisettings_3",
+        "label": "AiSettings",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "responsibility": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "technologyHints": [
+          "csharp",
+          "Options Pattern",
+          "Configuration POCO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AiSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "8"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ApiKey",
+            "value": "string"
+          },
+          {
+            "label": "Model",
+            "value": "string"
+          },
+          {
+            "label": "EmbeddingModel",
+            "value": "string"
+          },
+          {
+            "label": "Domain",
+            "value": "AI configuration, LLM model selection, Embeddings"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Configuration/AiSettings.cs:3:1",
+            "path": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+            "line": 3,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+        "sourceLine": 3,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Configuration/AiSettings.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_configuration_stripesettings_cs_file_1",
+        "label": "StripeSettings",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Configuration DTO that holds Stripe product identifiers and the configuration section key.",
+        "responsibility": "Configuration DTO that holds Stripe product identifiers and the configuration section key.",
+        "technologyHints": [
+          "csharp",
+          "Options pattern",
+          "Configuration DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "StripeSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ProProductId",
+            "value": "string required"
+          },
+          {
+            "label": "BasicProductId",
+            "value": "string required"
+          },
+          {
+            "label": "FreeProductId",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Stripe, ProductId"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Configuration/StripeSettings.cs:1:1",
+            "path": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Configuration/StripeSettings.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_getknowledgeinternalasync_guard_clause_83_83",
+        "label": "Guards early exit or rejection path",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (string.IsNullOrWhiteSpace(text)) return Result.Fail(\"Input text is empty.\");",
+        "responsibility": "if (string.IsNullOrWhiteSpace(text)) return Result.Fail(\"Input text is empty.\");",
+        "technologyHints": [
+          "csharp",
+          "Cache-Aside",
+          "Deduplicating concurrent requests (ConcurrentDictionary + Lazy<Task>)",
+          "Retry/Resilience (Polly ResiliencePipeline)",
+          "RAG (retrieval-augmented generation) with vector DB + graph expansion"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "KnowledgeService"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "string.IsNullOrWhiteSpace(text)) return Result.Fail(\"Input text is empty.\""
+          },
+          {
+            "label": "Outcomes",
+            "value": "exit, continue"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgeUnit, KnowledgeUnitLink, Knowledge graph expansion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/KnowledgeService.cs:83:1",
+            "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+            "line": 83,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "sourceLine": 83,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_helpers_contenthasher_cs_file_1",
+        "label": "ContentHasher",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Static utility class providing content normalization and hashing helpers.",
+        "responsibility": "Static utility class providing content normalization and hashing helpers.",
+        "technologyHints": [
+          "csharp",
+          "Utility",
+          "Hashing"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "ContentHasher"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "content normalization, deterministic hashing"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/ContentHasher.cs:1:1",
+            "path": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/ContentHasher.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_helpers_contenthasher_cs_computehash_9",
+        "label": "ComputeHash",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Normalizes input text, computes a SHA-256 hash of the UTF-8 bytes, and returns the lowercase hex string.",
+        "responsibility": "Normalizes input text, computes a SHA-256 hash of the UTF-8 bytes, and returns the lowercase hex string.",
+        "technologyHints": [
+          "csharp",
+          "Utility",
+          "Hashing"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "ContentHasher"
+          },
+          {
+            "label": "Signature",
+            "value": "(input: string) -> string"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L11"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Rejects empty/whitespace input @L11"
+          },
+          {
+            "label": "Action:return",
+            "value": "Returns result @L13"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Normalizes input before hashing @L16"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Encodes normalized input to UTF-8 bytes @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Computes SHA-256 hash @L19"
+          },
+          {
+            "label": "Domain",
+            "value": "content normalization, deterministic hashing"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/ContentHasher.cs:9:1",
+            "path": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+            "line": 9,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+        "sourceLine": 9,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/ContentHasher.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_executeairequestandcacheasync_guard_clause_167_167",
+        "label": "Guards early exit or rejection path",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (string.IsNullOrWhiteSpace(rawResponse)) return Result.Fail(\"AI returned an empty response.\");",
+        "responsibility": "if (string.IsNullOrWhiteSpace(rawResponse)) return Result.Fail(\"AI returned an empty response.\");",
+        "technologyHints": [
+          "csharp",
+          "Cache-Aside",
+          "Deduplicating concurrent requests (ConcurrentDictionary + Lazy<Task>)",
+          "Retry/Resilience (Polly ResiliencePipeline)",
+          "RAG (retrieval-augmented generation) with vector DB + graph expansion"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "KnowledgeService"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "string.IsNullOrWhiteSpace(rawResponse)) return Result.Fail(\"AI returned an empty response.\""
+          },
+          {
+            "label": "Outcomes",
+            "value": "exit, continue"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgeUnit, KnowledgeUnitLink, Knowledge graph expansion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/KnowledgeService.cs:167:1",
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+            "line": 167,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "sourceLine": 167,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_file_1",
+        "label": "JsonRepairHelper",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Static helper class encapsulating JSON repair utility logic used by infrastructure code.",
+        "responsibility": "Static helper class encapsulating JSON repair utility logic used by infrastructure code.",
+        "technologyHints": [
+          "csharp",
+          "Helper",
+          "Stack-based balancing algorithm",
+          "Defensive input sanitization"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "JsonRepairHelper"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs:1:1",
+            "path": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_repair_8",
+        "label": "Repair",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Detects truncated/garbled JSON, prunes trailing garbage, and auto-closes open strings/brackets/braces to return a best-effort valid JSON string.",
+        "responsibility": "Detects truncated/garbled JSON, prunes trailing garbage, and auto-closes open strings/brackets/braces to return a best-effort valid JSON string.",
+        "technologyHints": [
+          "csharp",
+          "Helper",
+          "Stack-based balancing algorithm",
+          "Defensive input sanitization"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "JsonRepairHelper"
+          },
+          {
+            "label": "Signature",
+            "value": "(json: string) -> string"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Guards early exit or rejection path @L10"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Rejects empty input @L10"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Trim input @L11"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Check for definite truncation @L14"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Find last likely clean delimiter @L18"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs:8:1",
+            "path": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+            "line": 8,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+        "sourceLine": 8,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_askquestionasync_repository_read_717_717",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "3. For every statement or claim you make in your answer, you must cite the specific source IDs (e.g., source chunk ID or hash) from the context.",
+        "responsibility": "3. For every statement or claim you make in your answer, you must cite the specific source IDs (e.g., source chunk ID or hash) from the context.",
+        "technologyHints": [
+          "csharp",
+          "Cache-Aside",
+          "Deduplicating concurrent requests (ConcurrentDictionary + Lazy<Task>)",
+          "Retry/Resilience (Polly ResiliencePipeline)",
+          "RAG (retrieval-augmented generation) with vector DB + graph expansion"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "KnowledgeService"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgeUnit, KnowledgeUnitLink, Knowledge graph expansion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/KnowledgeService.cs:717:1",
+            "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+            "line": 717,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "sourceLine": 717,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_helpers_contenthasher_cs_computehash_branch_11_11",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (string.IsNullOrWhiteSpace(input))",
+        "responsibility": "if (string.IsNullOrWhiteSpace(input))",
+        "technologyHints": [
+          "csharp",
+          "Utility",
+          "Hashing"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "ContentHasher"
+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "string.IsNullOrWhiteSpace(input)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "content normalization, deterministic hashing"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/ContentHasher.cs:11:1",
+            "path": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+            "line": 11,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+        "sourceLine": 11,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/ContentHasher.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_repair_guard_clause_10_10",
+        "label": "Guards early exit or rejection path",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (string.IsNullOrWhiteSpace(json)) return json;",
+        "responsibility": "if (string.IsNullOrWhiteSpace(json)) return json;",
+        "technologyHints": [
+          "csharp",
+          "Helper",
+          "Stack-based balancing algorithm",
+          "Defensive input sanitization"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "JsonRepairHelper"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "string.IsNullOrWhiteSpace(json)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "exit, continue"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs:10:1",
+            "path": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+            "line": 10,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+        "sourceLine": 10,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!app.Environment.IsDevelopment())",
+        "responsibility": "if (!app.Environment.IsDevelopment())",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!app.Environment.IsDevelopment()"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:237:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 237,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 237,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "responsibility": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(mediator: IMediator) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Depends on IMediator @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores mediator @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_mediator",
+            "value": "IMediator required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:1:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "responsibility": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
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+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(mediator: IMediator) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Depends on IMediator @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores mediator @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_mediator",
+            "value": "IMediator required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:14:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 14,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 14,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19",
+        "label": "UpdateProgress",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+        "responsibility": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(pageId: string, ebookId: Guid, progress: double, chapterTitle: string? , chapterIndex: int) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L21"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads user id from connection context @L21"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Requires authenticated user id @L21"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L22"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Dispatches command to application layer @L24"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Includes connection id in command @L24"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:19:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 19,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 19,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+        "responsibility": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 21,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 21,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28",
+        "label": "OnConnectedAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "When a client connects, adds their connection to a per-user SignalR group (User_{userId}) and calls base connection logic.",
+        "responsibility": "When a client connects, adds their connection to a per-user SignalR group (User_{userId}) and calls base connection logic.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "() -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads Context.UserIdentifier @L30"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L30"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L31"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Only add to group if userId present @L31"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Adds connection to per-user group @L33"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L33"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:28:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 28,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
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+          "role": "integration-client",
+          "layer": "frontend",
+          "kind": "action",
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+          "kind": "action",
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+          "role": "service",
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+          "kind": "action",
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+          "kind": "action",
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+          "role": "startup",
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+          "kind": "action",
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+          "role": "startup",
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+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
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+          "role": "startup",
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+          "kind": "action",
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+          "kind": "action",
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+          "role": "startup",
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+          "kind": "action",
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+          "role": "startup",
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+          "role": "startup",
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+          "role": "startup",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_460_460",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_470_470",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_log_472_472",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_473_473",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_477_477",
+          "label": "Evaluates branch condition",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_480_480",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_483_483",
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+          "label": "Reads repository or persistence state",
+          "role": "startup",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_486_486",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_501_501",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_512_512",
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+          "role": "startup",
+          "layer": "application",
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+          "role": "startup",
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+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_532_532",
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+          "role": "startup",
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+          "role": "startup",
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+        {
+          "id": "flow_method_nexusreader_web_program_cs_startupvalidation_scope_check_165",
+          "label": "StartupValidation (scope check)",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 165,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 165
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_startupvalidation_scope_check_branch_169_169",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 169,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 169
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_startupvalidation_scope_check_guard_clause_169_169",
+          "label": "Fail if infrastructure missing",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 169,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 169
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_startupvalidation_scope_check_validation_171_171",
+          "label": "Validates input or state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 171,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 171
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_ensuredatabaseinitialized_175",
+          "label": "EnsureDatabaseInitialized",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 175,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 175
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_loop_186_186",
+          "label": "Repeats work over a collection or condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 186,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 186
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_branch_190_190",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 190,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 190
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_branch_198_198",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 198,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 198
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_branch_206_206",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 206,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 206
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_206_206",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 206,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 206
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_208_208",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 208,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 208
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_branch_216_216",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 216,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 216
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_216_216",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 216,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 216
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_218_218",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 218,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 218
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_get_api_epub_ebookid_index_249",
+          "label": "GET /api/epub/{ebookId}/{index}",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 249,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 249
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_guard_clause_252_252",
+          "label": "Extracts userId from ClaimsPrincipal",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 252,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 252
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_repository_read_252_252",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 252,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 252
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_guard_clause_255_255",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 255,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 255
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_branch_255_255",
+          "label": "Return Ok on success, BadRequest on failure",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 255,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 255
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_return_258_258",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 258,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 258
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_265",
+          "label": "KnowledgeApi POST /api/knowledge/ (GetKnowledge)",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 265,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 265
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_repository_read_267_267",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 267,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 267
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_guard_clause_267_267",
+          "label": "Resolve tenantId from claims with default",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 267,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 267
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_guard_clause_269_269",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 269,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 269
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_branch_269_269",
+          "label": "Return Ok or BadRequest based on result.IsSuccess",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 269,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 269
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_return_270_270",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 270,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 270
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_knowledgeapi_post_graph_getgraphdataasync_273",
+          "label": "KnowledgeApi POST /graph (GetGraphDataAsync)",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 273,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 273
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_graph_getgraphdataasync_repository_read_275_275",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 275,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 275
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_graph_getgraphdataasync_guard_clause_277_277",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 277,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
+              "line": 277
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_graph_getgraphdataasync_branch_277_277",
+          "label": "Return Ok or BadRequest based on result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 277,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 277
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_graph_getgraphdataasync_return_278_278",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 278,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 278
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_knowledgeapi_post_summary_getsummaryandquizasync_281",
+          "label": "KnowledgeApi POST /summary (GetSummaryAndQuizAsync)",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 281,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 281
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_summary_getsummaryandquizasync_repository_read_283_283",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 283,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 283
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_summary_getsummaryandquizasync_guard_clause_285_285",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 285,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 285
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_summary_getsummaryandquizasync_branch_285_285",
+          "label": "Return Ok or BadRequest based on result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 285,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 285
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_summary_getsummaryandquizasync_return_286_286",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 286,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 286
+            }
+          ]
+        },
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+          "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+          "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Web/Program.cs",
+          "NexusReader.Application/DependencyInjection.cs",
+          "NexusReader.Infrastructure/DependencyInjection.cs",
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj",
+          "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+          "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+        ]
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/src/.documentation/domains/maui-mobile.md b/src/.documentation/domains/maui-mobile.md
new file mode 100644
index 0000000..e7f2cf6
--- /dev/null
+++ b/src/.documentation/domains/maui-mobile.md
@@ -0,0 +1,482 @@
+## MAUI Mobile Host: App wiring and platform services
+
+This short doc explains how the MAUI mobile host composes shared UI and application services, registers platform abstractions (storage, platform services), and the Android glue (MainActivity/MainApplication) used by the host.
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_file_nexusreader_web_client_services_wasmepubservice_cs_file_1["WasmEpubReader"]
+    flow_file_nexusreader_web_client_services_webplatformservice_cs_file_1["WebPlatformService"]
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1["AuthenticationHeaderHandler"]
+    flow_file_nexusreader_web_client_nexusreader_web_client_csproj_file_1["NexusReader.Web.Client.csproj"]
+    flow_file_nexusreader_web_client_services_wasmknowledgeservice_cs_file_1["WasmKnowledgeService"]
+    flow_type_nexusreader_web_client_handlers_authenticationheaderhandler_cs_authenticationheaderhandler_14[/"AuthenticationHeaderHandler"/]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+    flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+    flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+    flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1 -->|model AuthenticationHeaderHandler| flow_type_nexusreader_web_client_handlers_authenticationheaderhandler_cs_authenticationheaderhandler_14
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    flow_file_nexusreader_web_client_services_webplatformservice_cs_file_1 -->|model WebPlatformService| flow_type_nexusreader_web_client_services_webplatformservice_cs_webplatformservice_7
+    click flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1 href "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_handlers_authenticationheaderhandler_cs_authenticationheaderhandler_14 href "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:14:1" "Open source"
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_file_nexusreader_web_client_services_wasmepubservice_cs_file_1 href "vscode://file/NexusReader.Web.Client/Services/WasmEpubService.cs:1:1" "Open source"
+    click flow_file_nexusreader_web_client_services_wasmknowledgeservice_cs_file_1 href "vscode://file/NexusReader.Web.Client/Services/WasmKnowledgeService.cs:1:1" "Open source"
+    click flow_file_nexusreader_web_client_services_webplatformservice_cs_file_1 href "vscode://file/NexusReader.Web.Client/Services/WebPlatformService.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_services_webplatformservice_cs_webplatformservice_7 href "vscode://file/NexusReader.Web.Client/Services/WebPlatformService.cs:7:1" "Open source"
+    click flow_file_nexusreader_web_client_nexusreader_web_client_csproj_file_1 href "vscode://file/NexusReader.Web.Client/NexusReader.Web.Client.csproj:1:1" "Open source"
+```
+
+This dependency map shows the client Program.cs bindings and platform implementations used by the shared UI, highlighting IPlatformService and storage/service fallbacks. It maps how WebPlatformService and Wasm services are wired into the client composition.
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    subgraph flow_1_nexusreader_web_client_program_cs["Program.cs"]
+    end
+    subgraph flow_0_nexusreader_web_program_cs["Program.cs"]
+    end
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_method_nexusreader_web_program_cs_program_top_level_29["Program (top-level)"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62{"Evaluates branch condition"}
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66{"Falls back to alternate path"}
+    flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125["Reads repository or persistence state"]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+    flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+    flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+    flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|unknown| flow_method_nexusreader_web_client_program_cs_run_wasm_host_59
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_run_wasm_host_59 href "vscode://file/NexusReader.Web.Client/Program.cs:59:1" "Open source"
+    click flow_file_nexusreader_web_program_cs_file_1 href "vscode://file/NexusReader.Web/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_program_cs_program_top_level_29 href "vscode://file/NexusReader.Web/Program.cs:29:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 href "vscode://file/NexusReader.Web/Program.cs:62:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 href "vscode://file/NexusReader.Web/Program.cs:66:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125 href "vscode://file/NexusReader.Web/Program.cs:125:1" "Open source"
+```
+
+This startup flow diagrams how Program.cs chooses runtime paths (WASM vs server) and the services registered per host. It emphasizes guardrails where GetService may return null and fallback registrations occur.
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    subgraph flow_1_nexusreader_web_client_program_cs["Program.cs"]
+    end
+    subgraph flow_0_nexusreader_web_program_cs["Program.cs"]
+    end
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_method_nexusreader_web_program_cs_program_top_level_29["Program (top-level)"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62{"Evaluates branch condition"}
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66{"Falls back to alternate path"}
+    flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125["Reads repository or persistence state"]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+    flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+    flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+    flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 -->|fallback| flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 -->|Reads repository or persistence state| flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|FindAuthorByNameAsync| flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|GetService| flow_method_nexusreader_web_client_program_cs_getservice_71
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|Program top-level startup| flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|unknown| flow_method_nexusreader_web_client_program_cs_run_wasm_host_59
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    flow_file_nexusreader_web_program_cs_file_1 -->|Program top-level| flow_method_nexusreader_web_program_cs_program_top_level_29
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 -->|Reads repository or persistence state| flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88
+    flow_method_nexusreader_web_client_program_cs_getservice_71 -->|returns null| flow_action_nexusreader_web_client_program_cs_getservice_return_71_71
+    flow_method_nexusreader_web_program_cs_program_top_level_29 -->|true / false| flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_run_wasm_host_59 href "vscode://file/NexusReader.Web.Client/Program.cs:59:1" "Open source"
+    click flow_file_nexusreader_web_program_cs_file_1 href "vscode://file/NexusReader.Web/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_program_cs_program_top_level_29 href "vscode://file/NexusReader.Web/Program.cs:29:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 href "vscode://file/NexusReader.Web/Program.cs:62:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 href "vscode://file/NexusReader.Web/Program.cs:66:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125 href "vscode://file/NexusReader.Web/Program.cs:125:1" "Open source"
+```
+
+This class/flow view highlights contracts and DTOs used by Program.cs across client and server projects. It helps identify which services are stubbed (Throwing*) vs implemented on each host.
+
+```mermaid
+flowchart TD
+    subgraph NexusReader_Web_Client_Program["Program"]
+    end
+    subgraph NexusReader_Web_Program["Program"]
+    end
+    subgraph NexusReader_Application_DependencyInjection["DependencyInjection"]
+    end
+    subgraph NexusReader_Infrastructure_DependencyInjection["DependencyInjection"]
+    end
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_application_dependencyinjection_cs_addapplication_8["AddApplication"]
+    flow_method_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_31["AddInfrastructure"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_method_nexusreader_web_program_cs_program_top_level_29["Program (top-level)"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62{"Evaluates branch condition"}
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66{"Falls back to alternate path"}
+    flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125["Reads repository or persistence state"]
+    flow_action_nexusreader_web_program_cs_program_top_level_repository_read_126_126["Reads repository or persistence state"]
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 -->|fallback| flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 -->|Reads repository or persistence state| flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 -->|AddApplication| flow_method_nexusreader_application_dependencyinjection_cs_addapplication_8
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 -->|AddInfrastructure| flow_method_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_31
+    flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125 -->|Reads repository or persistence state| flow_action_nexusreader_web_program_cs_program_top_level_repository_read_126_126
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 -->|Reads repository or persistence state| flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88
+    flow_method_nexusreader_web_client_program_cs_getservice_71 -->|returns null| flow_action_nexusreader_web_client_program_cs_getservice_return_71_71
+    flow_method_nexusreader_web_program_cs_program_top_level_29 -->|true / false| flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_run_wasm_host_59 href "vscode://file/NexusReader.Web.Client/Program.cs:59:1" "Open source"
+    click flow_file_nexusreader_web_program_cs_file_1 href "vscode://file/NexusReader.Web/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_program_cs_program_top_level_29 href "vscode://file/NexusReader.Web/Program.cs:29:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 href "vscode://file/NexusReader.Web/Program.cs:62:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 href "vscode://file/NexusReader.Web/Program.cs:66:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125 href "vscode://file/NexusReader.Web/Program.cs:125:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_repository_read_126_126 href "vscode://file/NexusReader.Web/Program.cs:126:1" "Open source"
+    click flow_method_nexusreader_application_dependencyinjection_cs_addapplication_8 href "vscode://file/NexusReader.Application/DependencyInjection.cs:8:1" "Open source"
+    click flow_method_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_31 href "vscode://file/NexusReader.Infrastructure/DependencyInjection.cs:31:1" "Open source"
+```
+
+This control-flow diagram emphasizes how AddApplication/AddInfrastructure extensions are invoked and where host-specific fallbacks occur. It's useful for comparing MAUI host composition points vs WASM/server hosts.
+
+```mermaid
+classDiagram
+    class flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    class flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+    class flow_type_nexusreader_web_client_program_cs_configured_httpclient_40["configured HttpClient"]
+    class flow_type_nexusreader_web_client_program_cs_n_a_55["N/A"]
+    class flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33["NexusAuthenticationStateProvider"]
+    class flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74["ThrowingBookStorageService"]
+    class flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49["ThrowingDbContextFactory"]
+    class flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61["ThrowingDbContextFactory"]
+    class flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84["ThrowingEbookRepository"]
+    class flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66["ThrowingEmbeddingGenerator"]
+    class flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94["ThrowingSyncBroadcaster"]
+    class flow_type_nexusreader_web_client_program_cs_wasmepubreader_56["WasmEpubReader"]
+    class flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38["WasmKnowledgeService"]
+    class flow_type_nexusreader_web_client_program_cs_webplatformservice_18["WebPlatformService"]
+    class flow_type_nexusreader_web_program_cs_askquestionrequest_569["AskQuestionRequest"]
+    class flow_type_nexusreader_web_program_cs_groundednessrequest_567["GroundednessRequest"]
+    class flow_type_nexusreader_web_program_cs_knowledgerequest_566["KnowledgeRequest"]
+    class flow_type_nexusreader_web_program_cs_semanticsearchrequest_568["SemanticSearchRequest"]
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 : model ThrowingBookStorageService
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 : model ThrowingDbContextFactory
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 : model ThrowingEbookRepository
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 : model ThrowingEmbeddingGenerator
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 : model ThrowingSyncBroadcaster
+    flow_file_nexusreader_web_program_cs_file_1 --> flow_type_nexusreader_web_program_cs_askquestionrequest_569 : dto AskQuestionRequest
+    flow_file_nexusreader_web_program_cs_file_1 --> flow_type_nexusreader_web_program_cs_groundednessrequest_567 : dto GroundednessRequest
+    flow_file_nexusreader_web_program_cs_file_1 --> flow_type_nexusreader_web_program_cs_knowledgerequest_566 : dto KnowledgeRequest
+    flow_file_nexusreader_web_program_cs_file_1 --> flow_type_nexusreader_web_program_cs_semanticsearchrequest_568 : dto SemanticSearchRequest
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_file_nexusreader_web_program_cs_file_1 href "vscode://file/NexusReader.Web/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_program_cs_knowledgerequest_566 href "vscode://file/NexusReader.Web/Program.cs:566:1" "Open source"
+    click flow_type_nexusreader_web_program_cs_groundednessrequest_567 href "vscode://file/NexusReader.Web/Program.cs:567:1" "Open source"
+    click flow_type_nexusreader_web_program_cs_semanticsearchrequest_568 href "vscode://file/NexusReader.Web/Program.cs:568:1" "Open source"
+    click flow_type_nexusreader_web_program_cs_askquestionrequest_569 href "vscode://file/NexusReader.Web/Program.cs:569:1" "Open source"
+```
+
+This class diagram lists key contracts and stub implementations visible to Program.cs so you can see which services need platform overrides on MAUI (storage, platform abstractions).
+
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart LR
+    subgraph layer_frontend["frontend"]
+        flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+        flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+        flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+        flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+        flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+        flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+        flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+        flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+        flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+        flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+        flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+        flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+        flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+        flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+        flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    end
+    subgraph layer_application["application"]
+        flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+        flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62{"Evaluates branch condition"}
+        flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66{"Falls back to alternate path"}
+        flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 -->|fallback| flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66
+    end
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_file_nexusreader_web_program_cs_file_1 href "vscode://file/NexusReader.Web/Program.cs:1:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 href "vscode://file/NexusReader.Web/Program.cs:62:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 href "vscode://file/NexusReader.Web/Program.cs:66:1" "Open source"
+```
+
+Layer view contrasts frontend (client) vs application host responsibilities; for MAUI the frontend will replace WASM/WebPlatformService with MauiPlatformService and platform storage implementations.
+
+```mermaid
+flowchart TD
+    subgraph NexusReader_Web_Client_Program["Program"]
+    end
+    subgraph NexusReader_Web_Program["Program"]
+    end
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_program_cs_program_top_level_29["Program (top-level)"]
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62{"Evaluates branch condition"}
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66{"Falls back to alternate path"}
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 -->|fallback| flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66
+    flow_method_nexusreader_web_client_program_cs_getservice_71 -->|returns null| flow_action_nexusreader_web_client_program_cs_getservice_return_71_71
+    flow_method_nexusreader_web_program_cs_program_top_level_29 -->|true / false| flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_program_cs_program_top_level_29 href "vscode://file/NexusReader.Web/Program.cs:29:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 href "vscode://file/NexusReader.Web/Program.cs:62:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 href "vscode://file/NexusReader.Web/Program.cs:66:1" "Open source"
+```
+
+Guardrail diagram highlights failure and null-service paths; MAUI host must ensure platform services (MauiPlatformService, storage) are registered to avoid these null fallbacks.
+
+```mermaid
+flowchart TD
+    subgraph NexusReader_Web_Client_Handlers_AuthenticationHeaderHandler["AuthenticationHeaderHandler"]
+    end
+    subgraph NexusReader_Infrastructure_RealTime_SyncHub["SyncHub"]
+    end
+    subgraph NexusReader_Infrastructure_Services_EpubReaderService["EpubReaderService"]
+    end
+    flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1["EpubReaderService"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28["OnConnectedAsync"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38["OnDisconnectedAsync"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14["SyncHub"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19["UpdateProgress"]
+    flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175["CountWords"]
+    flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112["CloneHttpRequestMessageAsync"]
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_guard_clause_177_177{"Empty text check"}
+    flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119{"Evaluates branch condition"}
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237{"Evaluates branch condition"}
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1["SyncHub"]
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1["AuthenticationHeaderHandler"]
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237 -->|SyncHub| flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|OnConnectedAsync| flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|OnDisconnectedAsync| flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|UpdateProgress| flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19
+    flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1 -->|CountWords| flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1 -->|CloneHttpRequestMessageAsync| flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28 -->|Reads repository or persistence state| flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38 -->|Reads repository or persistence state| flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19 -->|Reads repository or persistence state| flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21
+    flow_method_nexu
+
+... (truncated from 59047 chars)
+```
+
+This method-flow extract (truncated) shows runtime handlers and service methods that touch persistence; for MAUI host ensure platform storage services back these reads/writes for local sync and epub handling.
+
+### Key Files
+- src/NexusReader.Maui/MauiProgram.cs
+- src/NexusReader.Maui/Services/MauiPlatformService.cs
+- src/NexusReader.Maui/Services/MauiStorageService.cs
+- src/NexusReader.Maui/Platforms/Android/MainActivity.cs
+- src/NexusReader.Maui/Platforms/Android/MainApplication.cs
+- src/NexusReader.Web.Client/Program.cs
+- src/NexusReader.Application/DependencyInjection.cs
+
+<div hidden data-ai-mermaid-metadata-appendix>
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+</div>
+
+---
+
+## See Also
+
+- [Application Layer: Commands, Queries and DTOs](application-layer.md)
+- [Security, Identity and Authorization](../flows/security-identity-auth.md)
+- [Real-Time Sync, SignalR and Broadcast](../flows/realtime-and-sync.md)
+- [Project Overview and Architecture](../collections/overview.md)
+- [Top Business Flows](../business/top-business-flows.md)
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new file mode 100644
index 0000000..28717c6
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+            "label": "Shape",
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+            "key": "source",
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+          "csharp",
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+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Shape",
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+          "Null/Throwing stub (platform-specific feature gating)"
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+            "label": "Domain",
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+            "key": "source",
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
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+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
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+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "label": "Shape",
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+            "label": "Fields",
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+            "label": "ErrorMessage",
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+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
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+          {
+            "key": "source",
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+      },
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+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+      },
+      {
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+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
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+        "technologyHints": [
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+          "Host/Startup bootstrap",
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+            "key": "source",
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+        "sourceTargetKind": "dependency",
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+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
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+          "Null/Throwing stub (platform-specific feature gating)"
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+        "label": "WasmEpubReader",
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+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Constructs the WASM EPUB reader and stores an HttpClient instance for remote chapter retrieval.",
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+          "csharp",
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+          "Extractor"
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+            "label": "Owner",
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+            "label": "Calls",
+            "value": "0"
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+          {
+            "label": "Action:mapping",
+            "value": "Store HttpClient @L14"
+          },
+          {
+            "label": "Domain",
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+          }
+        ],
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+            "key": "source",
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+      },
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+        "id": "flow_file_nexusreader_web_client_services_wasmknowledgeservice_cs_file_1",
+        "label": "WasmKnowledgeService",
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+        "nodeRole": "dependency",
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+            "label": "Owner",
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+            "key": "source",
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+          "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
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+      },
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+        "id": "flow_file_nexusreader_web_client_services_webplatformservice_cs_file_1",
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+          "Facade (simple wrappers for platform features)"
+        ],
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+          {
+            "label": "Owner",
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+          {
+            "label": "Shape",
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+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_jsRuntime",
+            "value": "IJSRuntime required"
+          },
+          {
+            "label": "Domain",
+            "value": "DeviceContext, DeviceType, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Services/WebPlatformService.cs:1:1",
+            "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+            "line": 1,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Services/WebPlatformService.cs"
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+      },
+      {
+        "id": "flow_type_nexusreader_web_client_services_webplatformservice_cs_webplatformservice_7",
+        "label": "WebPlatformService",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
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+        "responsibility": "Concrete platform service for the web client that implements IPlatformService using JS interop.",
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+          "Adapter (platform abstraction)",
+          "Facade (simple wrappers for platform features)"
+        ],
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+            "label": "Owner",
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+          {
+            "label": "Shape",
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+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_jsRuntime",
+            "value": "IJSRuntime required"
+          },
+          {
+            "label": "Domain",
+            "value": "DeviceContext, DeviceType, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+            "line": 7,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
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+        "id": "flow_file_nexusreader_web_client_nexusreader_web_client_csproj_file_1",
+        "label": "NexusReader.Web.Client.csproj",
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+        "nodeRole": "dependency",
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+        "responsibility": "SDK: Microsoft.NET.Sdk.BlazorWebAssembly; TargetFramework: net10.0; Blazor-specific properties set (NoDefaultLaunchSettingsFile, StaticWebAssetProjectMode, BlazorDisableThrowNavigationException); packs: MediatR, Blazor WASM runtime, Http extensions, EPUB library; references Application and UI.Shared projects.",
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+          "ProjectReference-based multi-project solution"
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+            "label": "Domain",
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+            "key": "source",
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+            "tooltip": "Open source"
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+          "NexusReader.Web.Client/NexusReader.Web.Client.csproj"
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+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
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+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
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+            "label": "Domain",
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+            "key": "source",
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+        "sourceTargetKind": "service",
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+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
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+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
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+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
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+            "key": "source",
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+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
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+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
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+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
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+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
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+          }
+        ],
+        "navigationTargets": [
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+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
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+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "return",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+          },
+          {
+            "label": "Calls",
+            "value": "0"
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+          {
+            "label": "Action:return",
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+          },
+          {
+            "label": "Domain",
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+        ],
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+            "key": "source",
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+      },
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+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
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+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
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+          },
+          {
+            "label": "Action:repository-read",
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+          },
+          {
+            "label": "Domain",
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+      },
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+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
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+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
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+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "label": "Action",
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+            "label": "Signature",
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+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
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+          },
+          {
+            "label": "Action:repository-read",
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+          },
+          {
+            "label": "Domain",
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+          }
+        ],
+        "navigationTargets": [
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+            "key": "source",
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
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+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
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+            "label": "Signature",
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+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
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+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
+        "navigationTargets": [
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+            "key": "source",
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+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
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+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
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+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
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+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
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+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
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+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
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+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
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+        "sourceTargetKind": "step",
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+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125",
+        "label": "Reads repository or persistence state",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "responsibility": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
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+          {
+            "label": "Action",
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+          {
+            "label": "Domain",
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+          }
+        ],
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+          {
+            "key": "source",
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+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
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+        "sourceTargetKind": "step",
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+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
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+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
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+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
+        "label": "Program (top-level startup)",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:15:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 15,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 15,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
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+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "responsibility": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:125:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 125,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 125,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
+        "label": "Program (top-level startup)",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:15:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 15,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 15,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "responsibility": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:125:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 125,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 125,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_126_126",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "context.Request.Path.StartsWithSegments(\"/identity\") ||",
+        "responsibility": "context.Request.Path.StartsWithSegments(\"/identity\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:126:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 126,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 126,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_dependencyinjection_cs_addapplication_8",
+        "label": "AddApplication",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Extension method that registers application mapping configuration and MediatR handlers, returning the IServiceCollection for chaining.",
+        "responsibility": "Extension method that registers application mapping configuration and MediatR handlers, returning the IServiceCollection for chaining.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection extension",
+          "Service registration"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "DependencyInjection"
+          },
+          {
+            "label": "Signature",
+            "value": "(services: IServiceCollection) -> IServiceCollection"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register mapping configuration @L10"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register MediatR handlers @L11"
+          },
+          {
+            "label": "Action:return",
+            "value": "Return IServiceCollection @L13"
+          },
+          {
+            "label": "Action:return",
+            "value": "Returns result @L13"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/DependencyInjection.cs:8:1",
+            "path": "NexusReader.Application/DependencyInjection.cs",
+            "line": 8,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DependencyInjection.cs",
+        "sourceLine": 8,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/DependencyInjection.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_31",
+        "label": "AddInfrastructure",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Configures and registers infrastructure services and external clients (DBs, AI, vector/graph stores, job processing, authorization, and app-layer implementations) into the DI container.",
+        "responsibility": "Configures and registers infrastructure services and external clients (DBs, AI, vector/graph stores, job processing, authorization, and app-layer implementations) into the DI container.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection / Service Registration",
+          "Factory (DbContextFactory)",
+          "Resilience (retry pipeline)",
+          "Repository"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "DependencyInjection"
+          },
+          {
+            "label": "Signature",
+            "value": "(this IServiceCollection services, IConfiguration configuration) -> IServiceCollection"
+          },
+          {
+            "label": "Calls",
+            "value": "12"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Selects DB provider @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L34"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L44"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Qdrant client registration @L56"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Neo4j driver registration @L60"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L64"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook / Epub processing, AI (chat/embeddings), Vector store (Qdrant)"
+          }
+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/DependencyInjection.cs:31:1",
+            "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+            "line": 31,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "sourceLine": 31,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/DependencyInjection.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
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+            "label": "Domain",
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+        "sourcePath": "NexusReader.Web/Program.cs",
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+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_knowledgerequest_566",
+        "label": "KnowledgeRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Request DTO carrying free-text input and optional ebook context for knowledge APIs.",
+        "responsibility": "Request DTO carrying free-text input and optional ebook context for knowledge APIs.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
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+          {
+            "label": "Text",
+            "value": "string required"
+          },
+          {
+            "label": "EbookId",
+            "value": "Guid?"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:566:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 566,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_groundednessrequest_567",
+        "label": "GroundednessRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Request DTO for verifying answer groundedness in a context.",
+        "responsibility": "Request DTO for verifying answer groundedness in a context.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
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+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Answer",
+            "value": "string required"
+          },
+          {
+            "label": "Context",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:567:1",
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+            "line": 567,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_semanticsearchrequest_568",
+        "label": "SemanticSearchRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "DTO for semantic search requests with a limit.",
+        "responsibility": "DTO for semantic search requests with a limit.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
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+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "QueryText",
+            "value": "string required"
+          },
+          {
+            "label": "Limit",
+            "value": "int"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:568:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 568,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_askquestionrequest_569",
+        "label": "AskQuestionRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "DTO for question-asking APIs including optional ebook context and limit.",
+        "responsibility": "DTO for question-asking APIs including optional ebook context and limit.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "3"
+          },
+          {
+            "label": "Question",
+            "value": "string required"
+          },
+          {
+            "label": "EbookId",
+            "value": "Guid?"
+          },
+          {
+            "label": "Limit",
+            "value": "int"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:569:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 569,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
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+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
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+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1",
+        "label": "AuthenticationHeaderHandler",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "DelegatingHandler that attaches JWTs to trusted requests and orchestrates token refresh and retry behavior.",
+        "responsibility": "DelegatingHandler that attaches JWTs to trusted requests and orchestrates token refresh and retry behavior.",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Signature",
+            "value": "(INativeStorageService storageService, IServiceProvider serviceProvider) -> AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Store injected services @L23"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "_storageService",
+            "value": "INativeStorageService required"
+          },
+          {
+            "label": "_serviceProvider",
+            "value": "IServiceProvider required"
+          },
+          {
+            "label": "TokenKey",
+            "value": "const string required"
+          },
+          {
+            "label": "_refreshSemaphore",
+            "value": "SemaphoreSlim required"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:1:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112",
+        "label": "CloneHttpRequestMessageAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Creates a deep-ish clone of an HttpRequestMessage including method, URI, version, headers and buffered content to allow safe retry.",
+        "responsibility": "Creates a deep-ish clone of an HttpRequestMessage including method, URI, version, headers and buffered content to allow safe retry.",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Signature",
+            "value": "(HttpRequestMessage req) -> Task<HttpRequestMessage>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Create new HttpRequestMessage clone @L114"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Copy request content stream and headers @L119"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L119"
+          },
+          {
+            "label": "Action:loop",
+            "value": "Repeats work over a collection or condition @L126"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Copy request headers @L132"
+          },
+          {
+            "label": "Action:loop",
+            "value": "Repeats work over a collection or condition @L132"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:112:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 112,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 112,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (req.Content != null)",
+        "responsibility": "if (req.Content != null)",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "req.Content != null"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:119:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 119,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 119,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!app.Environment.IsDevelopment())",
+        "responsibility": "if (!app.Environment.IsDevelopment())",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!app.Environment.IsDevelopment()"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:237:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 237,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 237,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "responsibility": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(mediator: IMediator) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Depends on IMediator @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores mediator @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_mediator",
+            "value": "IMediator required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:1:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "responsibility": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(mediator: IMediator) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Depends on IMediator @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores mediator @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_mediator",
+            "value": "IMediator required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:14:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 14,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 14,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1",
+        "label": "EpubReaderService",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "service",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Service that locates EPUB files recorded in the database, parses a requested chapter, splits the chapter into sanitized content blocks, injects AI-action trigger blocks at thresholds, and returns a ReaderPageViewModel for consumption by the application.",
+        "responsibility": "Important behaviors: DB lookup with user guard, file path resolution that handles dev/prod layouts, EPUB parsing via external library, paragraph extraction and HTML sanitization, word-count-based insertion of AI trigger blocks (WordThreshold = 1000), recursive navigation-title lookup, and robust error logging with Result-based failure propagation.",
+        "technologyHints": [
+          "csharp",
+          "Service",
+          "Repository-access (via DbContext)",
+          "Factory (CreateAiTrigger)",
+          "Parsing & sanitization pipeline"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "EpubReaderService"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Chapter/ReadingOrder, ContentBlock (TextSegmentBlock, AiActionTriggerBlock)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/EpubReaderService.cs:1:1",
+            "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19",
+        "label": "UpdateProgress",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+        "responsibility": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(pageId: string, ebookId: Guid, progress: double, chapterTitle: string? , chapterIndex: int) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L21"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads user id from connection context @L21"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Requires authenticated user id @L21"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L22"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Dispatches command to application layer @L24"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Includes connection id in command @L24"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:19:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 19,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 19,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+        "responsibility": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:21:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 21,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 21,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28",
+        "label": "OnConnectedAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "When a client connects, adds their connection to a per-user SignalR group (User_{userId}) and calls base connection logic.",
+        "responsibility": "When a client connects, adds their connection to a per-user SignalR group (User_{userId}) and calls base connection logic.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "() -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads Context.UserIdentifier @L30"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L30"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L31"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Only add to group if userId present @L31"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Adds connection to per-user group @L33"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L33"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:28:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 28,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 28,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "var userId = Context.UserIdentifier;",
+        "responsibility": "var userId = Context.UserIdentifier;",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:30:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 30,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 30,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38",
+        "label": "OnDisconnectedAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "When a client disconnects, removes their connection from the per-user SignalR group and invokes base disconnect logic.",
+        "responsibility": "When a client disconnects, removes their connection from the per-user SignalR group and invokes base disconnect logic.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(exception: Exception?) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads Context.UserIdentifier @L40"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L40"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L41"
+          },
+          {
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+          "kind": "action",
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+          "role": "startup",
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+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "label": "Evaluates branch condition",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_206_206",
+          "label": "Evaluates branch condition",
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+          "label": "Logs runtime state",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_216_216",
+          "label": "Evaluates branch condition",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_log_216_216",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_log_218_218",
+          "label": "Logs runtime state",
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+          "kind": "action",
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+          "role": "startup",
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+          "role": "startup",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_302_302",
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+          "role": "startup",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_310_310",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_501_501",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
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+          "role": "startup",
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+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_512_512",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
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+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_517_517",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_532_532",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_536_536",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_545_545",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
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+          "role": "startup",
+          "layer": "application",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+              "path": "NexusReader.Web/Program.cs",
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+          ]
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+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_branch_216_216",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 216
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_216_216",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 216
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_218_218",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
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+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_get_api_epub_ebookid_index_249",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_guard_clause_252_252",
+          "label": "Extracts userId from ClaimsPrincipal",
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+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_repository_read_252_252",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
+              "line": 252
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_guard_clause_255_255",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 255
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+          ]
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_branch_255_255",
+          "label": "Return Ok on success, BadRequest on failure",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_return_258_258",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+              "path": "NexusReader.Web/Program.cs",
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+        },
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+          "layer": "application",
+          "kind": "method",
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_repository_read_267_267",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_guard_clause_267_267",
+          "label": "Resolve tenantId from claims with default",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_guard_clause_269_269",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+              "path": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
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+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+              "path": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_verify_groundedness_guard_clause_301_301",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_verify_groundedness_branch_301_301",
+          "label": "Return Ok or BadRequest based on verification result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_verify_groundedness_return_302_302",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "visibleLabel": "Reads repository or persistence state",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 21,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1_flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28_invokes_28",
+          "from": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+          "to": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28",
+          "semanticLabel": "OnConnectedAsync",
+          "visibleLabel": "OnConnectedAsync",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 28,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "When a client connects, adds their connection to a per-user SignalR group (User_{userId}) and calls base connection logic.",
+            "expandedLabel": "handles-route"
+          }
+        },
+        {
+          "id": "edge_flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28_flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30_invokes_30",
+          "from": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28",
+          "to": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30",
+          "semanticLabel": "Reads repository or persistence state",
+          "visibleLabel": "Reads repository or persistence state",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 30,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "var userId = Context.UserIdentifier;",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1_flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38_invokes_38",
+          "from": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+          "to": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38",
+          "semanticLabel": "OnDisconnectedAsync",
+          "visibleLabel": "OnDisconnectedAsync",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 38,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "When a client disconnects, removes their connection from the per-user SignalR group and invokes base disconnect logic.",
+            "expandedLabel": "handles-route"
+          }
+        },
+        {
+          "id": "edge_flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38_flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40_invokes_40",
+          "from": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38",
+          "to": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40",
+          "semanticLabel": "Reads repository or persistence state",
+          "visibleLabel": "Reads repository or persistence state",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 40,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "var userId = Context.UserIdentifier;",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1_flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175_invokes_175",
+          "from": "flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1",
+          "to": "flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175",
+          "semanticLabel": "CountWords",
+          "visibleLabel": "CountWords",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/Services/EpubReaderService.cs",
+          "sourceLine": 175,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "Count words in a string using whitespace separators; returns 0 for null/whitespace.",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175_flow_action_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_guard_clause_177_177_evaluates_condition_177",
+          "from": "flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175",
+          "to": "flow_action_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_guard_clause_177_177",
+          "semanticLabel": "return 0 / continue",
+          "visibleLabel": "return 0 / continue",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.Infrastructure/Services/EpubReaderService.cs",
+          "sourceLine": 177,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "Empty text check",
+            "expandedLabel": "evaluates-condition"
+          }
+        }
+      ],
+      "subgraphs": [
+        {
+          "id": "NexusReader_Web_Client_Handlers_AuthenticationHeaderHandler",
+          "label": "AuthenticationHeaderHandler"
+        },
+        {
+          "id": "NexusReader_Infrastructure_RealTime_SyncHub",
+          "label": "SyncHub"
+        },
+        {
+          "id": "NexusReader_Infrastructure_Services_EpubReaderService",
+          "label": "EpubReaderService"
+        }
+      ],
+      "metadata": {
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+          "NexusReader.Web.Client/Program.cs",
+          "NexusReader.Web.Client/Services/WasmEpubService.cs",
+          "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+          "NexusReader.Web.Client/Services/WebPlatformService.cs",
+          "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+          "NexusReader.Maui/MauiProgram.cs",
+          "NexusReader.Maui/Platforms/Android/MainApplication.cs",
+          "NexusReader.Maui/Services/MauiStorageService.cs",
+          "NexusReader.Web/Program.cs",
+          "NexusReader.Application/DependencyInjection.cs",
+          "NexusReader.Infrastructure/DependencyInjection.cs",
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj",
+          "NexusReader.Maui/App.xaml.cs",
+          "NexusReader.Maui/MainPage.xaml.cs",
+          "NexusReader.Maui/Platforms/Android/MainActivity.cs",
+          "NexusReader.Maui/_Imports.razor",
+          "NexusReader.Maui/Main.razor",
+          "NexusReader.UI.Shared/Layout/MainHubLayout.razor",
+          "NexusReader.Maui/NexusReader.Maui.csproj",
+          "NexusReader.Infrastructure.Mobile/Class1.cs",
+          "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs",
+          "NexusReader.Infrastructure.Mobile/Services/MauiStorageService.cs",
+          "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+          "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+          "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+          "NexusReader.Infrastructure/Services/BookStorageService.cs",
+          "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+        ]
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/src/.documentation/flows/index.md b/src/.documentation/flows/index.md
new file mode 100644
index 0000000..eee619b
--- /dev/null
+++ b/src/.documentation/flows/index.md
@@ -0,0 +1,9 @@
+## Flows
+
+This collection groups flows documentation generated from the repository semantic map.
+
+### Documents
+
+- [Security, Identity and Authorization](security-identity-auth.md): ## Security, Identity and Authorization  This document summarizes how identity and authorization are...
+- [Blazor WebAssembly Client: hosting, handlers, and platform services](web-client-wasm.md): ## Blazor WebAssembly Client: hosting, handlers, and platform services  This document summarizes how...
+- [Real-Time Sync, SignalR and Broadcast](realtime-and-sync.md): ## Real-Time Sync, SignalR and Broadcast Overview: Describes real-time reading-progress sync: how Up...
\ No newline at end of file
diff --git a/src/.documentation/flows/realtime-and-sync.md b/src/.documentation/flows/realtime-and-sync.md
new file mode 100644
index 0000000..18e8712
--- /dev/null
+++ b/src/.documentation/flows/realtime-and-sync.md
@@ -0,0 +1,275 @@
+## Real-Time Sync, SignalR and Broadcast
+Overview: Describes real-time reading-progress sync: how UpdateReadingProgressCommand is handled, broadcast via ISyncBroadcaster/SignalRSyncBroadcaster and how clients (SyncService) subscribe and react.
+
+=== DIAGRAM 1: Dependency and Model Map (dependency-map) ===
+```mermaid
+flowchart TD
+    flow_file_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_file_1["ISyncBroadcaster"]
+    flow_file_nexusreader_ui_shared_services_syncservice_cs_file_1["SyncService"]
+    flow_file_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_file_1["UpdateReadingProgressCommand"]
+    flow_file_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_file_1["UpdateReadingProgressCommandHandler"]
+    flow_file_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_file_1["SignalRSyncBroadcaster"]
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1["SyncHub"]
+    flow_type_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_isyncbroadcaster_7[/"ISyncBroadcaster"/]
+    flow_type_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_updatereadingprogresscommand_6[/"UpdateReadingProgressCommand"/]
+    flow_type_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_updatereadingprogresscommandhandler_13[/"UpdateReadingProgressCommandHandler"/]
+    flow_type_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_signalrsyncbroadcaster_11[/"SignalRSyncBroadcaster"/]
+    flow_type_nexusreader_infrastructure_realtime_synchub_cs_synchub_10[/"SyncHub"/]
+    flow_type_nexusreader_ui_shared_services_syncservice_cs_syncservice_8[/"SyncService"/]
+    flow_file_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_file_1 -->|interface ISyncBroadcaster| flow_type_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_isyncbroadcaster_7
+    flow_file_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_file_1 -->|command UpdateReadingProgressCommand| flow_type_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_updatereadingprogresscommand_6
+    flow_file_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_file_1 -->|model UpdateReadingProgressCommandHandler| flow_type_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_updatereadingprogresscommandhandler_13
+    flow_file_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_file_1 -->|model SignalRSyncBroadcaster| flow_type_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_signalrsyncbroadcaster_11
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|model SyncHub| flow_type_nexusreader_infrastructure_realtime_synchub_cs_synchub_10
+    flow_file_nexusreader_ui_shared_services_syncservice_cs_file_1 -->|model SyncService| flow_type_nexusreader_ui_shared_services_syncservice_cs_syncservice_8
+    click flow_file_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_file_1 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_updatereadingprogresscommand_6 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs:6:1" "Open source"
+    click flow_file_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_file_1 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_updatereadingprogresscommandhandler_13 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:13:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_isyncbroadcaster_7 href "vscode://file/NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs:7:1" "Open source"
+    click flow_file_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_file_1 href "vscode://file/NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs:1:1" "Open source"
+    click flow_type_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_signalrsyncbroadcaster_11 href "vscode://file/NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs:11:1" "Open source"
+    click flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:1:1" "Open source"
+    click flow_type_nexusreader_infrastructure_realtime_synchub_cs_synchub_10 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:10:1" "Open source"
+    click flow_file_nexusreader_ui_shared_services_syncservice_cs_file_1 href "vscode://file/NexusReader.UI.Shared/Services/SyncService.cs:1:1" "Open source"
+    click flow_type_nexusreader_ui_shared_services_syncservice_cs_syncservice_8 href "vscode://file/NexusReader.UI.Shared/Services/SyncService.cs:8:1" "Open source"
+```
+This diagram maps interface → implementation and shows which files/types participate in sync: command, handler, hub, broadcaster and client SyncService.
+
+=== DIAGRAM 2: Reading Progress Sync Flow Flow (primary-runtime) ===
+```mermaid
+flowchart TD
+    subgraph Node_xref_realtime_and_sync_md_reading_progress_sync_flow["Reading Progress Sync Flow"]
+    end
+    subgraph Node_xref_realtime_and_sync_md_cross_client_notification_flow_server_side["Cross-Client Notification Flow (server-side)"]
+    end
+    subgraph Node_xref_realtime_and_sync_md_update_progress["Update Progress"]
+    end
+    subgraph flow_0_nexusreader_application_commands_sync_updatereadingprogresscommand_cs["UpdateReadingProgressCommand"]
+    end
+    flow_method_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_26["Handle"]
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_31_31{"Evaluates branch condition"}
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_41_41{"Evaluates branch condition"}
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_guard_clause_31_31{"User existence check"}
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_30_30["Reads repository or persistence state"]
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_40_40["Reads repository or persistence state"]
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_49_49["Reads repository or persistence state"]
+    flow_file_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_file_1["UpdateReadingProgressCommand"]
+    flow_file_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_file_1["UpdateReadingProgressCommandHandler"]
+    flow_type_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_updatereadingprogresscommand_6[/"UpdateReadingProgressCommand"/]
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_33_33(["Returns result"])
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59(["Return success result"])
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_31_31 -->|fail / continue| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_guard_clause_31_31
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_41_41 -->|Reads repository or persistence state| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_49_49
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_guard_clause_31_31 -->|Returns result| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_33_33
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_30_30 -->|true / false| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_31_31
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_40_40 -->|true / false| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_41_41
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_49_49 -->|Return success result| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_33_33 -->|Reads repository or persistence state| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_40_40
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59 -->|Returns result| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59
+    flow_file_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_file_1 -->|command UpdateReadingProgressCommand| flow_type_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_updatereadingprogresscommand_6
+    flow_file_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_file_1 -->|Handle| flow_method_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_26
+    flow_method_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_26 -->|Reads repository or persistence state| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_30_30
+    click flow_file_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_file_1 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_updatereadingprogresscommand_6 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs:6:1" "Open source"
+    click flow_file_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_file_1 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:1:1" "Open source"
+    click flow_method_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_26 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:26:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_30_30 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:30:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_31_31 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:31:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_guard_clause_31_31 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:31:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_33_33 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:33:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_40_40 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:40:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_41_41 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:41:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_49_49 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:49:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:59:1" "Open source"
+```
+This flow shows how UpdateReadingProgressCommand is processed: repository reads, guard checks (user existence/invalid conditions), early returns, and successful path that triggers cross-client notification.
+
+=== DIAGRAM 3: Reading Progress Sync Flow Execution Control Flow (control-flow) ===
+```mermaid
+flowchart TD
+    subgraph NexusReader_Application_Commands_Sync_UpdateReadingProgressCommandHandler["UpdateReadingProgressCommandHandler"]
+    end
+    subgraph NexusReader_Infrastructure_RealTime_SignalRSyncBroadcaster["SignalRSyncBroadcaster"]
+    end
+    flow_method_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_26["Handle"]
+    flow_method_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_21["BroadcastProgressAsync"]
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_31_31{"Evaluates branch condition"}
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_41_41{"Evaluates branch condition"}
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_guard_clause_31_31{"User existence check"}
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_30_30["Reads repository or persistence state"]
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_40_40["Reads repository or persistence state"]
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_49_49["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_branch_30_30{"Evaluates branch condition"}
+    flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_guard_clause_30_30{"Check excludedConnectionId"}
+    flow_file_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_file_1["UpdateReadingProgressCommandHandler"]
+    flow_file_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_file_1["SignalRSyncBroadcaster"]
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_33_33(["Returns result"])
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59(["Return success result"])
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_31_31 -->|fail / continue| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_guard_clause_31_31
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_41_41 -->|Reads repository or persistence state| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_49_49
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_guard_clause_31_31 -->|Returns result| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_33_33
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_30_30 -->|true / false| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_31_31
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_40_40 -->|true / false| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_41_41
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_49_49 -->|Return success result| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_33_33 -->|Reads repository or persistence state| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_40_40
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59 -->|Returns result| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59
+    flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_guard_clause_30_30 -->|true / false| flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_branch_30_30
+    flow_file_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_file_1 -->|Handle| flow_method_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_26
+    flow_file_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_file_1 -->|BroadcastProgressAsync| flow_method_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_21
+    flow_method_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_26 -->|Reads repository or persistence state| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_30_30
+    flow_method_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_21 -->|calls| flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_guard_clause_30_30
+    click flow_file_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_file_1 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:1:1" "Open source"
+    click flow_method_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_26 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:26:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_30_30 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:30:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_31_31 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:31:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_guard_clause_31_31 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:31:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_33_33 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:33:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_40_40 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:40:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_41_41 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:41:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_49_49 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:49:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:59:1" "Open source"
+    click flow_file_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_file_1 href "vscode://file/NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs:1:1" "Open source"
+    click flow_method_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_21 href "vscode://file/NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs:21:1" "Open source"
+    click flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_guard_clause_30_30 href "vscode://file/NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs:30:1" "Open source"
+```
+Highlights the runtime call: handler -> BroadcastProgressAsync and the broadcaster's excludedConnectionId check that determines which clients receive the notification.
+
+=== DIAGRAM 4: Reading Progress Sync Flow Contracts and Entities (class-diagram) ===
+```mermaid
+classDiagram
+    class flow_file_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_file_1["ISyncBroadcaster"]
+    class flow_file_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_file_1["UpdateReadingProgressCommand"]
+    class flow_file_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_file_1["UpdateReadingProgressCommandHandler"]
+    class flow_type_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_isyncbroadcaster_7["ISyncBroadcaster"]
+    class flow_type_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_updatereadingprogresscommand_6["UpdateReadingProgressCommand"]
+    class flow_type_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_updatereadingprogresscommandhandler_13["UpdateReadingProgressCommandHandler"]
+    flow_file_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_file_1 --> flow_type_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_isyncbroadcaster_7 : interface ISyncBroadcaster
+    flow_file_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_file_1 --> flow_type_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_updatereadingprogresscommand_6 : command UpdateReadingProgressCommand
+    flow_file_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_file_1 --> flow_type_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_updatereadingprogresscommandhandler_13 : model UpdateReadingProgressCommandHandler
+    click flow_file_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_file_1 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_updatereadingprogresscommand_6 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs:6:1" "Open source"
+    click flow_file_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_file_1 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_updatereadingprogresscommandhandler_13 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:13:1" "Open source"
+    click flow_file_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_file_1 href "vscode://file/NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_isyncbroadcaster_7 href "vscode://file/NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs:7:1" "Open source"
+```
+Shows core contracts/entities: command DTO, handler and ISyncBroadcaster interface—illustrating the separation of app logic from SignalR infra.
+
+=== DIAGRAM 5: Reading Progress Sync Flow Guardrails and Failure Paths (control-flow) ===
+```mermaid
+flowchart TD
+    subgraph NexusReader_Infrastructure_RealTime_SignalRSyncBroadcaster["SignalRSyncBroadcaster"]
+    end
+    flow_method_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_21["BroadcastProgressAsync"]
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_31_31{"Evaluates branch condition"}
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_41_41{"Evaluates branch condition"}
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_guard_clause_31_31{"User existence check"}
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_30_30["Reads repository or persistence state"]
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_40_40["Reads repository or persistence state"]
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_49_49["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_branch_30_30{"Evaluates branch condition"}
+    flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_guard_clause_30_30{"Check excludedConnectionId"}
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_33_33(["Returns result"])
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59(["Return success result"])
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_31_31 -->|fail / continue| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_guard_clause_31_31
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_guard_clause_31_31 -->|Returns result| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_33_33
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_30_30 -->|true / false| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_31_31
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_40_40 -->|true / false| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_41_41
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_49_49 -->|Return success result| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59
+    flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59 -->|Returns result| flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59
+    flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_guard_clause_30_30 -->|true / false| flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_branch_30_30
+    flow_method_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_21 -->|calls| flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_guard_clause_30_30
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_30_30 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:30:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_31_31 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:31:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_guard_clause_31_31 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:31:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_33_33 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:33:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_40_40 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:40:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_41_41 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:41:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_49_49 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:49:1" "Open source"
+    click flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59 href "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:59:1" "Open source"
+    click flow_method_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_21 href "vscode://file/NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs:21:1" "Open source"
+    click flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_guard_clause_30_30 href "vscode://file/NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs:30:1" "Open source"
+    click flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_branch_30_30 href "vscode://file/NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs:30:1" "Open source"
+```
+Emphasizes guard/failure branches: user checks and broadcaster exclusion logic to avoid echoing the originating connection.
+
+=== DIAGRAM 6: Method Flow Details (method-flow) ===
+```mermaid
+flowchart TD
+    subgraph NexusReader_Infrastructure_RealTime_SyncHub["SyncHub"]
+    end
+    subgraph NexusReader_UI_Shared_Services_SyncService["SyncService"]
+    end
+    flow_file_nexusreader_ui_shared_services_syncservice_cs_file_1["SyncService"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28["OnConnectedAsync"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38["OnDisconnectedAsync"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19["UpdateProgress"]
+    flow_method_nexusreader_ui_shared_services_syncservice_cs_disposeasync_103["DisposeAsync"]
+    flow_method_nexusreader_ui_shared_services_syncservice_cs_initializeasync_32["InitializeAsync"]
+    flow_method_nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_70["UpdateProgressAsync"]
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21["Reads repository or persistence state"]
+    flow_action_nexusreader_ui_shared_services_syncservice_cs_disposeasync_branch_106_106{"Evaluates branch condition"}
+    flow_action_nexusreader_ui_shared_services_syncservice_cs_initializeasync_guard_clause_34_34{"Guards early exit or rejection path"}
+    flow_action_nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_guard_clause_72_72{"Guards early exit or rejection path"}
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1["SyncHub"]
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|OnConnectedAsync| flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|OnDisconnectedAsync| flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|UpdateProgress| flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19
+    flow_file_nexusreader_ui_shared_services_syncservice_cs_file_1 -->|DisposeAsync| flow_method_nexusreader_ui_shared_services_syncservice_cs_disposeasync_103
+    flow_file_nexusreader_ui_shared_services_syncservice_cs_file_1 -->|InitializeAsync| flow_method_nexusreader_ui_shared_services_syncservice_cs_initializeasync_32
+    flow_file_nexusreader_ui_shared_services_syncservice_cs_file_1 -->|UpdateProgressAsync| flow_method_nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_70
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28 -->|Reads repository or persistence state| flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38 -->|Reads repository or persistence state| flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19 -->|Reads repository or persistence state| flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21
+    flow_method_nexusreader_ui_shared_services_syncservice_cs_disposeasync_103 -->|true / false| flow_action_nexusreader_ui_shared_services_syncservice_cs_disposeasync_branch_106_106
+    flow_method_nexusreader_ui_shared_services_syncservice_cs_initializeasync_32 -->|exit / continue| flow_action_nexusreader_ui_shared_services_syncservice_cs_initializeasync_guard_clause_34_34
+    flow_method_nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_70 -->|exit / continue| flow_action_nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_guard_clause_72_72
+    click flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:1:1" "Open source"
+    click flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:19:1" "Open source"
+    click flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:21:1" "Open source"
+    click flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:28:1" "Open source"
+    click flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:30:1" "Open source"
+    click flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:38:1" "Open source"
+    click flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40 href "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:40:1" "Open source"
+    click flow_file_nexusreader_ui_shared_services_syncservice_cs_file_1 href "vscode://file/NexusReader.UI.Shared/Services/SyncService.cs:1:1" "Open source"
+    click flow_method_nexusreader_ui_shared_services_syncservice_cs_initializeasync_32 href "vscode://file/NexusReader.UI.Shared/Services/SyncService.cs:32:1" "Open source"
+    click flow_action_nexusreader_ui_shared_services_syncservice_cs_initializeasync_guard_clause_34_34 href "vscode://file/NexusReader.UI.Shared/Services/SyncService.cs:34:1" "Open source"
+    click flow_method_nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_70 href "vscode://file/NexusReader.UI.Shared/Services/SyncService.cs:70:1" "Open source"
+    click flow_action_nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_guard_clause_72_72 href "vscode://file/NexusReader.UI.Shared/Services/SyncService.cs:72:1" "Open source"
+    click flow_method_nexusreader_ui_shared_services_syncservice_cs_disposeasync_103 href "vscode://file/NexusReader.UI.Shared/Services/SyncService.cs:103:1" "Open source"
+    click flow_action_nexusreader_ui_shared_services_syncservice_cs_disposeasync_branch_106_106 href "vscode://file/NexusReader.UI.Shared/Services/SyncService.cs:106:1" "Open source"
+```
+Details hub ↔ client interactions: OnConnected/Disconnected maintain per-user groups; clients initialize, debounce and call UpdateProgressAsync which is sent to the hub and flows into the command handler.
+
+### Key Files
+- NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs  
+- NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs  
+- NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs  
+- NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs  
+- NexusReader.Infrastructure/RealTime/SyncHub.cs  
+- NexusReader.UI.Shared/Services/SyncService.cs
+
+<div hidden data-ai-mermaid-metadata-appendix>
+<script type="application/json" data-ai-mermaid-metadata="0" data-ai-mermaid-diagram-id="dependency_map_graph">{"edges":[{"id":"edge_flow_file_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_file_1_flow_type_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_updatereadingprogresscommand_6_defines_type_6","from":"flow_file_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_file_1","to":"flow_type_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_updatereadingprogresscommand_6","relation":"transforms","semanticLabel":"command UpdateReadingProgressCommand","payload":{"outputSummary":"Represents the data required to update/synchronize reading progress for a user's ebook.","expandedLabel":"defines-type"}},{"id":"edge_flow_file_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_file_1_flow_type_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_updatereadingprogresscommandhandler_13_defines_type_13","from":"flow_file_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_file_1","to":"flow_type_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_updatereadingprogresscommandhandler_13","relation":"transforms","semanticLabel":"model UpdateReadingProgressCommandHandler","payload":{"outputSummary":"MediatR handler that updates reading progress and triggers sync broadcasts.","expandedLabel":"defines-type"}},{"id":"edge_flow_file_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_file_1_flow_type_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_isyncbroadcaster_7_defines_type_7","from":"flow_file_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_file_1","to":"flow_type_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_isyncbroadcaster_7","relation":"transforms","semanticLabel":"interface ISyncBroadcaster","payload":{"outputSummary":"Defines methods for broadcasting real-time synchronization and ingestion progress events to user devices without tying Application layer to SignalR.","expandedLabel":"defines-type"}},{"id":"edge_flow_file_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_file_1_flow_type_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_signalrsyncbroadcaster_11_defines_type_11","from":"flow_file_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_file_1","to":"flow_type_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_signalrsyncbroadcaster_11","relation":"transforms","semanticLabel":"model SignalRSyncBroadcaster","payload":{"outputSummary":"Concrete SignalR-backed implementation of ISyncBroadcaster that uses HubContext to publish real-time updates to user 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+</div>
+
+---
+
+## See Also
+
+- [Application Layer: Commands, Queries and DTOs](../domains/application-layer.md)
+- [Blazor WebAssembly Client: hosting, handlers, and platform services](web-client-wasm.md)
+- [MAUI Mobile Host: App wiring and platform services](../domains/maui-mobile.md)
+- [Infrastructure Services: Knowledge, AI, Billing, Storage, Epub](../domains/infrastructure-services.md)
+- [Data Layer, EF Core and Repositories](../domains/data-and-persistence.md)
+- [Project Overview and Architecture](../collections/overview.md)
+- [Top Business Flows](../business/top-business-flows.md)
diff --git a/src/.documentation/flows/realtime-and-sync.meta.json b/src/.documentation/flows/realtime-and-sync.meta.json
new file mode 100644
index 0000000..1604ebb
--- /dev/null
+++ b/src/.documentation/flows/realtime-and-sync.meta.json
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+          {
+            "label": "Calls",
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+            "label": "Action:mapping",
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+            "label": "_httpClient",
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+            "label": "_storageService",
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+            "label": "_platformService",
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+            "label": "_logger",
+            "value": "ILogger<SyncService> required"
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+            "label": "EbookId",
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+            "label": "Progress",
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+            "label": "EbookId",
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+            "label": "Progress",
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+            "label": "Domain",
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+            "label": "_broadcaster",
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+            "label": "Domain",
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+            "label": "Signature",
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+            "label": "Action:mapping",
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+            "label": "Action:mapping",
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+            "label": "Action:branch",
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+            "label": "Action:guard-clause",
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+        "diagramFamily": "primary-runtime",
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+            "label": "_dbContextFactory",
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+            "label": "_broadcaster",
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+          {
+            "label": "Domain",
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+            "label": "Action:mapping",
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+            "label": "Action:branch",
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+          {
+            "label": "Action:guard-clause",
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+            "label": "Action:return",
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+            "label": "Domain",
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+      },
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+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_31_31",
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+        "diagramFamily": "control-flow",
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+          {
+            "label": "Domain",
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+            "label": "Action",
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+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
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+            "key": "source",
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+        "sourceTargetKind": "return",
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+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_40_40",
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+        "diagramFamily": "control-flow",
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+            "key": "source",
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+            "tooltip": "Open source"
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+        ],
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+      {
+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_41_41",
+        "label": "Evaluates branch condition",
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+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
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+            "key": "source",
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+            "tooltip": "Open source"
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+        ],
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+        "sourceLine": 41,
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+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_49_49",
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+        "diagramFamily": "control-flow",
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+      },
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+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59",
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+        "id": "flow_file_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_file_1",
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+        "responsibility": "Concrete SignalR-backed implementation of ISyncBroadcaster that uses HubContext to publish real-time updates to user sessions.",
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+          "csharp",
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+          "Real-time push / integration-client"
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+        "detailItems": [
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+            "label": "Owner",
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+            "label": "Signature",
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+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores hub context @L17"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_hubContext",
+            "value": "IHubContext<SyncHub> required"
+          },
+          {
+            "label": "Domain",
+            "value": "Sync, Progress, Ingestion"
+          }
+        ],
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+            "key": "source",
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+            "line": 1,
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+        ],
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+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_21",
+        "label": "BroadcastProgressAsync",
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+        "nodeRole": "method",
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+          "csharp",
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+        "detailItems": [
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+            "label": "Owner",
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+            "label": "Signature",
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+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Check excludedConnectionId @L30"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L30"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "SignalR send ProgressUpdated (branch true) @L32"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Calls external dependency @L34"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Exclusion limitation @L36"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L40"
+          },
+          {
+            "label": "Domain",
+            "value": "Sync, Progress, Ingestion"
+          }
+        ],
+        "navigationTargets": [
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+            "key": "source",
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+            "line": 21,
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+          }
+        ],
+        "confidence": "high",
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+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_guard_clause_30_30",
+        "label": "Check excludedConnectionId",
+        "diagramId": "control_flow_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Different branches exist but both branches call Clients.User(userId).SendAsync(...) due to HubContext limitations",
+        "responsibility": "Different branches exist but both branches call Clients.User(userId).SendAsync(...) due to HubContext limitations",
+        "technologyHints": [
+          "csharp",
+          "SignalR broadcaster",
+          "Real-time push / integration-client"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SignalRSyncBroadcaster"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(excludedConnectionId)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "branch-true: attempt comment & send, branch-false: send"
+          },
+          {
+            "label": "Domain",
+            "value": "Sync, Progress, Ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs:30:1",
+            "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+            "line": 30,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "sourceLine": 30,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_branch_30_30",
+        "label": "Evaluates branch condition",
+        "diagramId": "control_flow_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(excludedConnectionId))",
+        "responsibility": "if (!string.IsNullOrEmpty(excludedConnectionId))",
+        "technologyHints": [
+          "csharp",
+          "SignalR broadcaster",
+          "Real-time push / integration-client"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SignalRSyncBroadcaster"
+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(excludedConnectionId)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "Sync, Progress, Ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs:30:1",
+            "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+            "line": 30,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "sourceLine": 30,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_file_1",
+        "label": "UpdateReadingProgressCommand",
+        "diagramId": "contracts_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "object",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Represents the data required to update/synchronize reading progress for a user's ebook.",
+        "responsibility": "Represents the data required to update/synchronize reading progress for a user's ebook.",
+        "technologyHints": [
+          "csharp",
+          "CQRS Command",
+          "MediatR IRequest<Result>"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "UpdateReadingProgressCommand"
+          },
+          {
+            "label": "Shape",
+            "value": "command"
+          },
+          {
+            "label": "Fields",
+            "value": "7"
+          },
+          {
+            "label": "PageId",
+            "value": "string required"
+          },
+          {
+            "label": "UserId",
+            "value": "string required"
+          },
+          {
+            "label": "EbookId",
+            "value": "Guid required"
+          },
+          {
+            "label": "Progress",
+            "value": "double required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, Ebook, User"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs:1:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_updatereadingprogresscommand_6",
+        "label": "UpdateReadingProgressCommand",
+        "diagramId": "contracts_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "object",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Represents the data required to update/synchronize reading progress for a user's ebook.",
+        "responsibility": "Represents the data required to update/synchronize reading progress for a user's ebook.",
+        "technologyHints": [
+          "csharp",
+          "CQRS Command",
+          "MediatR IRequest<Result>"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "UpdateReadingProgressCommand"
+          },
+          {
+            "label": "Shape",
+            "value": "command"
+          },
+          {
+            "label": "Fields",
+            "value": "7"
+          },
+          {
+            "label": "PageId",
+            "value": "string required"
+          },
+          {
+            "label": "UserId",
+            "value": "string required"
+          },
+          {
+            "label": "EbookId",
+            "value": "Guid required"
+          },
+          {
+            "label": "Progress",
+            "value": "double required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, Ebook, User"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs:6:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+            "line": 6,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "sourceLine": 6,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_file_1",
+        "label": "UpdateReadingProgressCommandHandler",
+        "diagramId": "contracts_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
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+        "responsibility": "MediatR handler that updates reading progress and triggers sync broadcasts.",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR)",
+          "Repository/EF DbContext usage"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "UpdateReadingProgressCommandHandler"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "_dbContextFactory",
+            "value": "IDbContextFactory<AppDbContext> required"
+          },
+          {
+            "label": "_broadcaster",
+            "value": "ISyncBroadcaster required"
+          },
+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:1:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_updatereadingprogresscommandhandler_13",
+        "label": "UpdateReadingProgressCommandHandler",
+        "diagramId": "contracts_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
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+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
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+        "responsibility": "MediatR handler that updates reading progress and triggers sync broadcasts.",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR)",
+          "Repository/EF DbContext usage"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
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+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "_dbContextFactory",
+            "value": "IDbContextFactory<AppDbContext> required"
+          },
+          {
+            "label": "_broadcaster",
+            "value": "ISyncBroadcaster required"
+          },
+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:13:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "line": 13,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "sourceLine": 13,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_file_1",
+        "label": "ISyncBroadcaster",
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+        "nodeRole": "interface",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Defines methods for broadcasting real-time synchronization and ingestion progress events to user devices without tying Application layer to SignalR.",
+        "responsibility": "Defines methods for broadcasting real-time synchronization and ingestion progress events to user devices without tying Application layer to SignalR.",
+        "technologyHints": [
+          "csharp",
+          "Pub-Sub",
+          "Adapter (abstraction over real-time/hub implementation)"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "ISyncBroadcaster"
+          },
+          {
+            "label": "Shape",
+            "value": "interface"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "BroadcastProgressAsync",
+            "value": "method required"
+          },
+          {
+            "label": "BroadcastIngestionProgressAsync",
+            "value": "method required"
+          },
+          {
+            "label": "Domain",
+            "value": "real-time sync, reading progress, ingestion progress"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs:1:1",
+            "path": "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_isyncbroadcaster_7",
+        "label": "ISyncBroadcaster",
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+        "nodeRole": "interface",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Defines methods for broadcasting real-time synchronization and ingestion progress events to user devices without tying Application layer to SignalR.",
+        "responsibility": "Defines methods for broadcasting real-time synchronization and ingestion progress events to user devices without tying Application layer to SignalR.",
+        "technologyHints": [
+          "csharp",
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+          "Adapter (abstraction over real-time/hub implementation)"
+        ],
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+          {
+            "label": "Owner",
+            "value": "ISyncBroadcaster"
+          },
+          {
+            "label": "Shape",
+            "value": "interface"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "BroadcastProgressAsync",
+            "value": "method required"
+          },
+          {
+            "label": "BroadcastIngestionProgressAsync",
+            "value": "method required"
+          },
+          {
+            "label": "Domain",
+            "value": "real-time sync, reading progress, ingestion progress"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs:7:1",
+            "path": "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs",
+            "line": 7,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs",
+        "sourceLine": 7,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_30_30",
+        "label": "Reads repository or persistence state",
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+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "var user = await context.Users.FirstOrDefaultAsync(u => u.Id == request.UserId, cancellationToken);",
+        "responsibility": "var user = await context.Users.FirstOrDefaultAsync(u => u.Id == request.UserId, cancellationToken);",
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+          "Repository/EF DbContext usage"
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+            "label": "Owner",
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+          {
+            "label": "Action",
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+          {
+            "label": "Domain",
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+            "key": "source",
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+            "line": 30,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
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+        "sourceLine": 30,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_31_31",
+        "label": "Evaluates branch condition",
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+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
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+        "summary": "if (user == null)",
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+          "Repository/EF DbContext usage"
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+            "label": "Owner",
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+            "label": "Action",
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+            "label": "Condition",
+            "value": "user == null"
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+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
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+            "key": "source",
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+            "line": 31,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
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+        "sourceLine": 31,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
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+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_guard_clause_31_31",
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+        "diagramFamily": "control-flow",
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+        "summary": "if user not found returns Result.Fail(\"User not found.\") (lines 31-34)",
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+            "label": "Outcomes",
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+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
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+        "navigationTargets": [
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+            "key": "source",
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+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_33_33",
+        "label": "Returns result",
+        "diagramId": "failure_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
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+          "Repository/EF DbContext usage"
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+        "detailItems": [
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+            "label": "Owner",
+            "value": "UpdateReadingProgressCommandHandler"
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+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
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+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:33:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_40_40",
+        "label": "Reads repository or persistence state",
+        "diagramId": "failure_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
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+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "var ebook = await context.Ebooks.FirstOrDefaultAsync(e => e.Id == request.EbookId, cancellationToken);",
+        "responsibility": "var ebook = await context.Ebooks.FirstOrDefaultAsync(e => e.Id == request.EbookId, cancellationToken);",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR)",
+          "Repository/EF DbContext usage"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "UpdateReadingProgressCommandHandler"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:40:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_41_41",
+        "label": "Evaluates branch condition",
+        "diagramId": "failure_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (ebook != null)",
+        "responsibility": "if (ebook != null)",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR)",
+          "Repository/EF DbContext usage"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "UpdateReadingProgressCommandHandler"
+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "ebook != null"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:41:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "line": 41,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "sourceLine": 41,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_49_49",
+        "label": "Reads repository or persistence state",
+        "diagramId": "failure_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "await context.SaveChangesAsync(cancellationToken);",
+        "responsibility": "await context.SaveChangesAsync(cancellationToken);",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR)",
+          "Repository/EF DbContext usage"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "UpdateReadingProgressCommandHandler"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:49:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59",
+        "label": "Return success result",
+        "diagramId": "failure_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "return Result.Ok()",
+        "responsibility": "return Result.Ok()",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR)",
+          "Repository/EF DbContext usage"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "UpdateReadingProgressCommandHandler"
+          },
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:59:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_21",
+        "label": "BroadcastProgressAsync",
+        "diagramId": "failure_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Broadcasts a 'ProgressUpdated' message (pageId + timestamp) to all connections for a given user; attempts to consider an excluded connection id but ultimately uses Clients.User(userId).",
+        "responsibility": "Broadcasts a 'ProgressUpdated' message (pageId + timestamp) to all connections for a given user; attempts to consider an excluded connection id but ultimately uses Clients.User(userId).",
+        "technologyHints": [
+          "csharp",
+          "SignalR broadcaster",
+          "Real-time push / integration-client"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SignalRSyncBroadcaster"
+          },
+          {
+            "label": "Signature",
+            "value": "(userId: string, pageId: string, timestamp: DateTime, excludedConnectionId: string?, cancellationToken: CancellationToken) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Check excludedConnectionId @L30"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L30"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "SignalR send ProgressUpdated (branch true) @L32"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Calls external dependency @L34"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Exclusion limitation @L36"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L40"
+          },
+          {
+            "label": "Domain",
+            "value": "Sync, Progress, Ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs:21:1",
+            "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+            "line": 21,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "sourceLine": 21,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_guard_clause_30_30",
+        "label": "Check excludedConnectionId",
+        "diagramId": "failure_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Different branches exist but both branches call Clients.User(userId).SendAsync(...) due to HubContext limitations",
+        "responsibility": "Different branches exist but both branches call Clients.User(userId).SendAsync(...) due to HubContext limitations",
+        "technologyHints": [
+          "csharp",
+          "SignalR broadcaster",
+          "Real-time push / integration-client"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SignalRSyncBroadcaster"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(excludedConnectionId)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "branch-true: attempt comment & send, branch-false: send"
+          },
+          {
+            "label": "Domain",
+            "value": "Sync, Progress, Ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs:30:1",
+            "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+            "line": 30,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "sourceLine": 30,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_branch_30_30",
+        "label": "Evaluates branch condition",
+        "diagramId": "failure_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(excludedConnectionId))",
+        "responsibility": "if (!string.IsNullOrEmpty(excludedConnectionId))",
+        "technologyHints": [
+          "csharp",
+          "SignalR broadcaster",
+          "Real-time push / integration-client"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SignalRSyncBroadcaster"
+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(excludedConnectionId)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "Sync, Progress, Ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs:30:1",
+            "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+            "line": 30,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "sourceLine": 30,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "responsibility": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(mediator: IMediator) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Depends on IMediator @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores mediator @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_mediator",
+            "value": "IMediator required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:1:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19",
+        "label": "UpdateProgress",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+        "responsibility": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(pageId: string, ebookId: Guid, progress: double, chapterTitle: string? , chapterIndex: int) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L21"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads user id from connection context @L21"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Requires authenticated user id @L21"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L22"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Dispatches command to application layer @L24"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Includes connection id in command @L24"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:19:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 19,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 19,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+        "responsibility": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:21:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 21,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 21,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28",
+        "label": "OnConnectedAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "When a client connects, adds their connection to a per-user SignalR group (User_{userId}) and calls base connection logic.",
+        "responsibility": "When a client connects, adds their connection to a per-user SignalR group (User_{userId}) and calls base connection logic.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "() -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads Context.UserIdentifier @L30"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L30"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L31"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Only add to group if userId present @L31"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Adds connection to per-user group @L33"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L33"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:28:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 28,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 28,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "var userId = Context.UserIdentifier;",
+        "responsibility": "var userId = Context.UserIdentifier;",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:30:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 30,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 30,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38",
+        "label": "OnDisconnectedAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "When a client disconnects, removes their connection from the per-user SignalR group and invokes base disconnect logic.",
+        "responsibility": "When a client disconnects, removes their connection from the per-user SignalR group and invokes base disconnect logic.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(exception: Exception?) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads Context.UserIdentifier @L40"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L40"
+          },
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+          "to": "flow_method_nexusreader_ui_shared_services_syncservice_cs_initializeasync_32",
+          "semanticLabel": "InitializeAsync",
+          "visibleLabel": "InitializeAsync",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.UI.Shared/Services/SyncService.cs",
+          "sourceLine": 32,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "Initialize the SignalR HubConnection using stored auth token and wire up incoming progress notifications; returns success/failure Result.",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_method_nexusreader_ui_shared_services_syncservice_cs_initializeasync_32_flow_action_nexusreader_ui_shared_services_syncservice_cs_initializeasync_guard_clause_34_34_evaluates_condition_34",
+          "from": "flow_method_nexusreader_ui_shared_services_syncservice_cs_initializeasync_32",
+          "to": "flow_action_nexusreader_ui_shared_services_syncservice_cs_initializeasync_guard_clause_34_34",
+          "semanticLabel": "exit / continue",
+          "visibleLabel": "exit / continue",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.UI.Shared/Services/SyncService.cs",
+          "sourceLine": 34,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "if (_isInitialized) return Result.Ok();",
+            "expandedLabel": "evaluates-condition"
+          }
+        },
+        {
+          "id": "edge_flow_file_nexusreader_ui_shared_services_syncservice_cs_file_1_flow_method_nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_70_invokes_70",
+          "from": "flow_file_nexusreader_ui_shared_services_syncservice_cs_file_1",
+          "to": "flow_method_nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_70",
+          "semanticLabel": "UpdateProgressAsync",
+          "visibleLabel": "UpdateProgressAsync",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.UI.Shared/Services/SyncService.cs",
+          "sourceLine": 70,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "Debounced, trailing-edge update of reading progress: avoids duplicate sends, schedules a delayed send, ensures hub is initialized and sends progress when connected.",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_method_nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_70_flow_action_nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_guard_clause_72_72_evaluates_condition_72",
+          "from": "flow_method_nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_70",
+          "to": "flow_action_nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_guard_clause_72_72",
+          "semanticLabel": "exit / continue",
+          "visibleLabel": "exit / continue",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.UI.Shared/Services/SyncService.cs",
+          "sourceLine": 72,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "if (pageId == _lastSentPageId) return Result.Ok();",
+            "expandedLabel": "evaluates-condition"
+          }
+        },
+        {
+          "id": "edge_flow_file_nexusreader_ui_shared_services_syncservice_cs_file_1_flow_method_nexusreader_ui_shared_services_syncservice_cs_disposeasync_103_invokes_103",
+          "from": "flow_file_nexusreader_ui_shared_services_syncservice_cs_file_1",
+          "to": "flow_method_nexusreader_ui_shared_services_syncservice_cs_disposeasync_103",
+          "semanticLabel": "DisposeAsync",
+          "visibleLabel": "DisposeAsync",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.UI.Shared/Services/SyncService.cs",
+          "sourceLine": 103,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "Cleans up resources: cancels debounce token and disposes the HubConnection if present.",
+            "expandedLabel": "invokes"
+          }
+        },
+        {
+          "id": "edge_flow_method_nexusreader_ui_shared_services_syncservice_cs_disposeasync_103_flow_action_nexusreader_ui_shared_services_syncservice_cs_disposeasync_branch_106_106_evaluates_condition_106",
+          "from": "flow_method_nexusreader_ui_shared_services_syncservice_cs_disposeasync_103",
+          "to": "flow_action_nexusreader_ui_shared_services_syncservice_cs_disposeasync_branch_106_106",
+          "semanticLabel": "true / false",
+          "visibleLabel": "true / false",
+          "relation": "calls",
+          "sourcePath": "c:/Users/micht/source/repos/Nexus.Reader/src/NexusReader.UI.Shared/Services/SyncService.cs",
+          "sourceLine": 106,
+          "includeInMetadata": true,
+          "payload": {
+            "outputSummary": "if (_hubConnection != null)",
+            "expandedLabel": "evaluates-condition"
+          }
+        }
+      ],
+      "subgraphs": [
+        {
+          "id": "NexusReader_Infrastructure_RealTime_SyncHub",
+          "label": "SyncHub"
+        },
+        {
+          "id": "NexusReader_UI_Shared_Services_SyncService",
+          "label": "SyncService"
+        }
+      ],
+      "metadata": {
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+          "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs",
+          "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "NexusReader.UI.Shared/Services/SyncService.cs"
+        ]
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/src/.documentation/flows/security-identity-auth.md b/src/.documentation/flows/security-identity-auth.md
new file mode 100644
index 0000000..7530bcf
--- /dev/null
+++ b/src/.documentation/flows/security-identity-auth.md
@@ -0,0 +1,227 @@
+## Security, Identity and Authorization
+
+This document summarizes how identity and authorization are implemented: token limits, Pro user checks, client/server identity flows, and where checks run. Diagrams below show structure, control flow, and method interactions.
+
+=== DIAGRAM 1: Dependency and Model Map (dependency-map) ===
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    flow_file_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_file_1["NexusAuthenticationStateProvider"]
+    flow_file_nexusreader_web_services_serveridentityservice_cs_file_1["ServerIdentityService"]
+    flow_file_nexusreader_application_queries_user_getuserprofilequery_cs_file_1["GetUserProfileQuery"]
+    flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1["ProUserHandler"]
+    flow_file_nexusreader_application_security_authorization_prouserrequirement_cs_file_1["ProUserRequirement"]
+    flow_file_nexusreader_infrastructure_identity_tokenlimithandler_cs_file_1["TokenLimitHandler"]
+    flow_file_nexusreader_infrastructure_identity_tokenlimitrequirement_cs_file_1["TokenLimitRequirement"]
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1["AuthenticationHeaderHandler"]
+    flow_type_nexusreader_application_queries_user_getuserprofilequery_cs_getuserprofilequery_7[/"GetUserProfileQuery"/]
+    flow_type_nexusreader_application_security_authorization_prouserhandler_cs_prouserhandler_11[/"ProUserHandler"/]
+    flow_type_nexusreader_application_security_authorization_prouserrequirement_cs_prouserrequirement_8[/"ProUserRequirement"/]
+    flow_type_nexusreader_infrastructure_identity_tokenlimitrequirement_cs_tokenlimitrequirement_8[/"TokenLimitRequirement"/]
+    flow_type_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_nexusauthenticationstateprovider_9[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_handlers_authenticationheaderhandler_cs_authenticationheaderhandler_14[/"AuthenticationHeaderHandler"/]
+    flow_file_nexusreader_application_queries_user_getuserprofilequery_cs_file_1 -->|query GetUserProfileQuery| flow_type_nexusreader_application_queries_user_getuserprofilequery_cs_getuserprofilequery_7
+    flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1 -->|model ProUserHandler| flow_type_nexusreader_application_security_authorization_prouserhandler_cs_prouserhandler_11
+    flow_file_nexusreader_application_security_authorization_prouserrequirement_cs_file_1 -->|model ProUserRequirement| flow_type_nexusreader_application_security_authorization_prouserrequirement_cs_prouserrequirement_8
+    flow_file_nexusreader_infrastructure_identity_tokenlimitrequirement_cs_file_1 -->|model TokenLimitRequirement| flow_type_nexusreader_infrastructure_identity_tokenlimitrequirement_cs_tokenlimitrequirement_8
+    flow_file_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_file_1 -->|model NexusAuthenticationStateProvider| flow_type_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_nexusauthenticationstateprovider_9
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1 -->|model AuthenticationHeaderHandler| flow_type_nexusreader_web_client_handlers_authenticationheaderhandler_cs_authenticationheaderhandler_14
+    click flow_file_nexusreader_infrastructure_identity_tokenlimithandler_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Identity/TokenLimitHandler.cs:1:1" "Open source"
+    click flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_security_authorization_prouserhandler_cs_prouserhandler_11 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:11:1" "Open source"
+    click flow_file_nexusreader_infrastructure_identity_tokenlimitrequirement_cs_file_1 href "vscode://file/NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs:1:1" "Open source"
+    click flow_type_nexusreader_infrastructure_identity_tokenlimitrequirement_cs_tokenlimitrequirement_8 href "vscode://file/NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs:8:1" "Open source"
+    click flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1 href "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_handlers_authenticationheaderhandler_cs_authenticationheaderhandler_14 href "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:14:1" "Open source"
+    click flow_file_nexusreader_application_security_authorization_prouserrequirement_cs_file_1 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserRequirement.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_security_authorization_prouserrequirement_cs_prouserrequirement_8 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserRequirement.cs:8:1" "Open source"
+    click flow_file_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_file_1 href "vscode://file/NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs:1:1" "Open source"
+    click flow_type_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_nexusauthenticationstateprovider_9 href "vscode://file/NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs:9:1" "Open source"
+    click flow_file_nexusreader_web_services_serveridentityservice_cs_file_1 href "vscode://file/NexusReader.Web/Services/ServerIdentityService.cs:1:1" "Open source"
+    click flow_file_nexusreader_application_queries_user_getuserprofilequery_cs_file_1 href "vscode://file/NexusReader.Application/Queries/User/GetUserProfileQuery.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_queries_user_getuserprofilequery_cs_getuserprofilequery_7 href "vscode://file/NexusReader.Application/Queries/User/GetUserProfileQuery.cs:7:1" "Open source"
+```
+This map shows component dependencies and models: client-side state provider and header handler, server identity service, and authorization handlers/requirements. Clickable links reference the source files.
+
+=== DIAGRAM 2: ProUserHandler Flow (primary-runtime) ===
+```mermaid
+flowchart TD
+    subgraph flow_0_nexusreader_application_security_authorization_prouserhandler_cs["ProUserHandler"]
+    end
+    flow_method_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_20["HandleRequirementAsync"]
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_25_25{"Evaluates branch condition"}
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_guard_clause_24_24{"Missing user id"}
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_repository_read_24_24["Reads repository or persistence state"]
+    flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1["ProUserHandler"]
+    flow_type_nexusreader_application_security_authorization_prouserhandler_cs_prouserhandler_11[/"ProUserHandler"/]
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_return_27_27(["Returns result"])
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_25_25 -->|Returns result| flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_return_27_27
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_guard_clause_24_24 -->|Reads repository or persistence state| flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_repository_read_24_24
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_repository_read_24_24 -->|true / false| flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_25_25
+    flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1 -->|HandleRequirementAsync| flow_method_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_20
+    flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1 -->|model ProUserHandler| flow_type_nexusreader_application_security_authorization_prouserhandler_cs_prouserhandler_11
+    flow_method_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_20 -->|return no auth decision| flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_guard_clause_24_24
+    click flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:1:1" "Open source"
+    click flow_method_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_20 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:20:1" "Open source"
+    click flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_guard_clause_24_24 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:24:1" "Open source"
+    click flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_repository_read_24_24 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:24:1" "Open source"
+    click flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_25_25 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:25:1" "Open source"
+    click flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_return_27_27 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:27:1" "Open source"
+    click flow_type_nexusreader_application_security_authorization_prouserhandler_cs_prouserhandler_11 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:11:1" "Open source"
+```
+This flow shows HandleRequirementAsync: it guards on missing user id, reads persistence (subscription/tokens), then evaluates the branch to allow or deny. Enforcement happens inside the handler by consulting the DB/identity.
+
+=== DIAGRAM 3: ProUserHandler Execution Control Flow (control-flow) ===
+```mermaid
+flowchart TD
+    subgraph NexusReader_Application_Security_Authorization_ProUserHandler["ProUserHandler"]
+    end
+    flow_method_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_20["HandleRequirementAsync"]
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_25_25{"Evaluates branch condition"}
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_35_35{"Evaluates branch condition"}
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_guard_clause_24_24{"Missing user id"}
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_repository_read_24_24["Reads repository or persistence state"]
+    flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1["ProUserHandler"]
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_return_27_27(["Returns result"])
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_25_25 -->|Returns result| flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_return_27_27
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_guard_clause_24_24 -->|Reads repository or persistence state| flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_repository_read_24_24
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_repository_read_24_24 -->|true / false| flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_25_25
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_return_27_27 -->|true / false| flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_35_35
+    flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1 -->|HandleRequirementAsync| flow_method_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_20
+    flow_method_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_20 -->|return no auth decision| flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_guard_clause_24_24
+    click flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:1:1" "Open source"
+    click flow_method_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_20 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:20:1" "Open source"
+    click flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_guard_clause_24_24 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:24:1" "Open source"
+    click flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_repository_read_24_24 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:24:1" "Open source"
+    click flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_25_25 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:25:1" "Open source"
+    click flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_return_27_27 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:27:1" "Open source"
+    click flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_35_35 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:35:1" "Open source"
+```
+This control-flow emphasizes guard clauses and secondary branch checks (e.g., subscription vs token availability). Failure paths return no decision or deny, preventing access.
+
+=== DIAGRAM 4: ProUserHandler Contracts and Entities (class-diagram) ===
+```mermaid
+classDiagram
+    class flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1["ProUserHandler"]
+    class flow_type_nexusreader_application_security_authorization_prouserhandler_cs_prouserhandler_11["ProUserHandler"]
+    flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1 --> flow_type_nexusreader_application_security_authorization_prouserhandler_cs_prouserhandler_11 : model ProUserHandler
+    click flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:1:1" "Open source"
+    click flow_type_nexusreader_application_security_authorization_prouserhandler_cs_prouserhandler_11 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:11:1" "Open source"
+```
+This class diagram links the file to the handler model, indicating the handler is the contract implementing the Pro user policy.
+
+=== DIAGRAM 5: ProUserHandler Guardrails and Failure Paths (control-flow) ===
+```mermaid
+flowchart TD
+    subgraph NexusReader_Application_Security_Authorization_ProUserHandler["ProUserHandler"]
+    end
+    flow_method_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_20["HandleRequirementAsync"]
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_25_25{"Evaluates branch condition"}
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_35_35{"Evaluates branch condition"}
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_guard_clause_24_24{"Missing user id"}
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_repository_read_24_24["Reads repository or persistence state"]
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_return_27_27(["Returns result"])
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_25_25 -->|Returns result| flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_return_27_27
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_repository_read_24_24 -->|true / false| flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_25_25
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_return_27_27 -->|true / false| flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_35_35
+    flow_method_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_20 -->|return no auth decision| flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_guard_clause_24_24
+    click flow_method_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_20 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:20:1" "Open source"
+    click flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_guard_clause_24_24 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:24:1" "Open source"
+    click flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_repository_read_24_24 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:24:1" "Open source"
+    click flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_25_25 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:25:1" "Open source"
+    click flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_return_27_27 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:27:1" "Open source"
+    click flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_35_35 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:35:1" "Open source"
+```
+Focuses on guardrails: missing identity short-circuits, repository checks determine outcome, and explicit branches model failure modes.
+
+=== DIAGRAM 6: Method Flow Details (method-flow) ===
+```mermaid
+flowchart TD
+    subgraph NexusReader_Application_Security_Authorization_ProUserHandler["ProUserHandler"]
+    end
+    subgraph NexusReader_Web_Client_Handlers_AuthenticationHeaderHandler["AuthenticationHeaderHandler"]
+    end
+    subgraph NexusReader_UI_Shared_Services_NexusAuthenticationStateProvider["NexusAuthenticationStateProvider"]
+    end
+    subgraph NexusReader_Web_Services_ServerIdentityService["ServerIdentityService"]
+    end
+    flow_file_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_file_1["NexusAuthenticationStateProvider"]
+    flow_file_nexusreader_web_services_serveridentityservice_cs_file_1["ServerIdentityService"]
+    flow_method_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_20["HandleRequirementAsync"]
+    flow_method_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_createstate_84["CreateState"]
+    flow_method_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_31["GetAuthenticationStateAsync"]
+    flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112["CloneHttpRequestMessageAsync"]
+    flow_method_nexusreader_web_services_serveridentityservice_cs_getprofileasync_108["GetProfileAsync"]
+    flow_method_nexusreader_web_services_serveridentityservice_cs_loginasync_39["LoginAsync"]
+    flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_guard_clause_24_24{"Missing user id"}
+    flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_createstate_branch_93_93{"Evaluates branch condition"}
+    flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_guard_clause_35_35{"Guards early exit or rejection path"}
+    flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119{"Evaluates branch condition"}
+    flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_110_110{"No HttpContext or not authenticated"}
+    flow_action_nexusreader_web_services_serveridentityservice_cs_loginasync_guard_clause_43_43{"Missing user"}
+    flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1["ProUserHandler"]
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1["AuthenticationHeaderHandler"]
+    flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1 -->|HandleRequirementAsync| flow_method_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_20
+    flow_file_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_file_1 -->|CreateState| flow_method_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_createstate_84
+    flow_file_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_file_1 -->|GetAuthenticationStateAsync| flow_method_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_31
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1 -->|CloneHttpRequestMessageAsync| flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112
+    flow_file_nexusreader_web_services_serveridentityservice_cs_file_1 -->|GetProfileAsync| flow_method_nexusreader_web_services_serveridentityservice_cs_getprofileasync_108
+    flow_file_nexusreader_web_services_serveridentityservice_cs_file_1 -->|LoginAsync| flow_method_nexusreader_web_services_serveridentityservice_cs_loginasync_39
+    flow_method_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_20 -->|return no auth decision| flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_guard_clause_24_24
+    flow_method_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_createstate_84 -->|true / false| flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_createstate_branch_93_93
+    flow_method_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_31 -->|exit / continue| flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_guard_clause_35_35
+    flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112 -->|true / false| flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119
+    flow_method_nexusreader_web_services_serveridentityservice_cs_getprofileasync_108 -->|fail / continue| flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_110_110
+    flow_method_nexusreader_web_services_serveridentityservice_cs_loginasync_39 -->|fail / continue| flow_action_nexusreader_web_services_serveridentityservice_cs_loginasync_guard_clause_43_43
+    click flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:1:1" "Open source"
+    click flow_method_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_20 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:20:1" "Open source"
+    click flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_guard_clause_24_24 href "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:24:1" "Open source"
+    click flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1 href "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112 href "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:112:1" "Open source"
+    click flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119 href "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:119:1" "Open source"
+    click flow_file_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_file_1 href "vscode://file/NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs:1:1" "Open source"
+    click flow_method_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_31 href "vscode://file/NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs:31:1" "Open source"
+    click flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_guard_clause_35_35 href "vscode://file/NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs:35:1" "Open source"
+    click flow_method_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_createstate_84 href "vscode://file/NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs:84:1" "Open source"
+    click flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_createstate_branch_93_93 href "vscode://file/NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs:93:1" "Open source"
+    click flow_file_nexusreader_web_services_serveridentityservice_cs_file_1 href "vscode://file/NexusReader.Web/Services/ServerIdentityService.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_services_serveridentityservice_cs_loginasync_39 href "vscode://file/NexusReader.Web/Services/ServerIdentityService.cs:39:1" "Open source"
+    click flow_action_nexusreader_web_services_serveridentityservice_cs_loginasync_guard_clause_43_43 href "vscode://file/NexusReader.Web/Services/ServerIdentityService.cs:43:1" "Open source"
+    click flow_method_nexusreader_web_services_serveridentityservice_cs_getprofileasync_108 href "vscode://file/NexusReader.Web/Services/ServerIdentityService.cs:108:1" "Open source"
+    click flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_110_110 href "vscode://file/NexusReader.Web/Services/ServerIdentityService.cs:110:1" "Open source"
+```
+This shows end-to-end interactions: AuthenticationStateProvider provides client auth state, AuthenticationHeaderHandler attaches/refreshes JWTs for API calls, and ServerIdentityService validates and exposes profile/login endpoints. TokenLimitHandler/ProUserHandler consult DB state during authorization.
+
+### Key Files
+- NexusReader.Infrastructure/Identity/TokenLimitHandler.cs  
+- NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs  
+- NexusReader.Application/Security/Authorization/ProUserHandler.cs  
+- NexusReader.Application/Security/Authorization/ProUserRequirement.cs  
+- NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs  
+- NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs  
+- NexusReader.Web/Services/ServerIdentityService.cs  
+- NexusReader.Application/Queries/User/GetUserProfileQuery.cs
+
+<div hidden data-ai-mermaid-metadata-appendix>
+<script type="application/json" data-ai-mermaid-metadata="0" data-ai-mermaid-diagram-id="dependency_map_graph">{"edges":[{"id":"edge_flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1_flow_type_nexusreader_application_security_authorization_prouserhandler_cs_prouserhandler_11_defines_type_11","from":"flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1","to":"flow_type_nexusreader_application_security_authorization_prouserhandler_cs_prouserhandler_11","relation":"transforms","semanticLabel":"model ProUserHandler","payload":{"outputSummary":"Authorization handler class that enforces Pro user rules using DB-backed 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+</div>
+
+---
+
+## See Also
+
+- [Application Layer: Commands, Queries and DTOs](../domains/application-layer.md)
+- [Blazor WebAssembly Client: hosting, handlers, and platform services](web-client-wasm.md)
+- [MAUI Mobile Host: App wiring and platform services](../domains/maui-mobile.md)
+- [Business Overview](../business/business-overview.md)
+- [Infrastructure Services: Knowledge, AI, Billing, Storage, Epub](../domains/infrastructure-services.md)
+- [Project Overview and Architecture](../collections/overview.md)
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new file mode 100644
index 0000000..0961e8f
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+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "ProUserHandler"
+          },
+          {
+            "label": "Signature",
+            "value": "(context: AuthorizationHandlerContext, requirement: ProUserRequirement) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Missing user id @L24"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L24"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L25"
+          },
+          {
+            "label": "Action:return",
+            "value": "Returns result @L27"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Load user with subscription @L30"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L35"
+          },
+          {
+            "label": "Domain",
+            "value": "User, SubscriptionPlan, AI tokens (AITokensUsed, AITokenLimit)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:20:1",
+            "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+            "line": 20,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "sourceLine": 20,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_guard_clause_24_24",
+        "label": "Missing user id",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (string.IsNullOrEmpty(userId)) return;",
+        "responsibility": "if (string.IsNullOrEmpty(userId)) return;",
+        "technologyHints": [
+          "csharp",
+          "Authorization Handler",
+          "DB-backed authorization"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "ProUserHandler"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "userId is null or empty"
+          },
+          {
+            "label": "Outcomes",
+            "value": "return (no auth decision)"
+          },
+          {
+            "label": "Domain",
+            "value": "User, SubscriptionPlan, AI tokens (AITokensUsed, AITokenLimit)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:24:1",
+            "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+            "line": 24,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "sourceLine": 24,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1",
+        "label": "AuthenticationHeaderHandler",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "DelegatingHandler that attaches JWTs to trusted requests and orchestrates token refresh and retry behavior.",
+        "responsibility": "DelegatingHandler that attaches JWTs to trusted requests and orchestrates token refresh and retry behavior.",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Signature",
+            "value": "(INativeStorageService storageService, IServiceProvider serviceProvider) -> AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Store injected services @L23"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "_storageService",
+            "value": "INativeStorageService required"
+          },
+          {
+            "label": "_serviceProvider",
+            "value": "IServiceProvider required"
+          },
+          {
+            "label": "TokenKey",
+            "value": "const string required"
+          },
+          {
+            "label": "_refreshSemaphore",
+            "value": "SemaphoreSlim required"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:1:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112",
+        "label": "CloneHttpRequestMessageAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Creates a deep-ish clone of an HttpRequestMessage including method, URI, version, headers and buffered content to allow safe retry.",
+        "responsibility": "Creates a deep-ish clone of an HttpRequestMessage including method, URI, version, headers and buffered content to allow safe retry.",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Signature",
+            "value": "(HttpRequestMessage req) -> Task<HttpRequestMessage>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Create new HttpRequestMessage clone @L114"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Copy request content stream and headers @L119"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L119"
+          },
+          {
+            "label": "Action:loop",
+            "value": "Repeats work over a collection or condition @L126"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Copy request headers @L132"
+          },
+          {
+            "label": "Action:loop",
+            "value": "Repeats work over a collection or condition @L132"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:112:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 112,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 112,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (req.Content != null)",
+        "responsibility": "if (req.Content != null)",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "req.Content != null"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:119:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 119,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 119,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_file_1",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "A frontend service that provides AuthenticationState to Blazor components using persisted secure storage values.",
+        "responsibility": "A frontend service that provides AuthenticationState to Blazor components using persisted secure storage values.",
+        "technologyHints": [
+          "csharp",
+          "AuthenticationStateProvider",
+          "Client-side caching",
+          "Storage-backed authentication"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "NexusAuthenticationStateProvider"
+          },
+          {
+            "label": "Signature",
+            "value": "(INativeStorageService storageService) -> NexusAuthenticationStateProvider"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Security note @L13"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Store injected service @L20"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "3"
+          },
+          {
+            "label": "_storageService",
+            "value": "INativeStorageService required"
+          },
+          {
+            "label": "_cachedState",
+            "value": "AuthenticationState?"
+          },
+          {
+            "label": "TokenKey",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, User Roles, Tenant"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs:1:1",
+            "path": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_31",
+        "label": "GetAuthenticationStateAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Asynchronously resolves the current AuthenticationState by returning a cached state or reconstructing it from persisted token/email/tenant/roles with multiple fallbacks and exception handling.",
+        "responsibility": "Asynchronously resolves the current AuthenticationState by returning a cached state or reconstructing it from persisted token/email/tenant/roles with multiple fallbacks and exception handling.",
+        "technologyHints": [
+          "csharp",
+          "AuthenticationStateProvider",
+          "Client-side caching",
+          "Storage-backed authentication"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "NexusAuthenticationStateProvider"
+          },
+          {
+            "label": "Signature",
+            "value": "() -> Task<AuthenticationState>"
+          },
+          {
+            "label": "Calls",
+            "value": "9"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Protect state resolution @L33"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Guards early exit or rejection path @L35"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Return cached state if present @L35"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L41"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Token-based auth path @L41"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L47"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, User Roles, Tenant"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs:31:1",
+            "path": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+            "line": 31,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "sourceLine": 31,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_guard_clause_35_35",
+        "label": "Guards early exit or rejection path",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (_cachedState != null) return _cachedState;",
+        "responsibility": "if (_cachedState != null) return _cachedState;",
+        "technologyHints": [
+          "csharp",
+          "AuthenticationStateProvider",
+          "Client-side caching",
+          "Storage-backed authentication"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "NexusAuthenticationStateProvider"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "_cachedState != null"
+          },
+          {
+            "label": "Outcomes",
+            "value": "exit, continue"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, User Roles, Tenant"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs:35:1",
+            "path": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+            "line": 35,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "sourceLine": 35,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_createstate_84",
+        "label": "CreateState",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Constructs an AuthenticationState/ClaimsPrincipal from provided identity attributes and a comma-separated roles string.",
+        "responsibility": "Constructs an AuthenticationState/ClaimsPrincipal from provided identity attributes and a comma-separated roles string.",
+        "technologyHints": [
+          "csharp",
+          "AuthenticationStateProvider",
+          "Client-side caching",
+          "Storage-backed authentication"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "NexusAuthenticationStateProvider"
+          },
+          {
+            "label": "Signature",
+            "value": "(string email, string tenantId, string authType, string rolesStr = \"\") -> AuthenticationState"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build base claims @L86"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L93"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Only parse roles if provided @L93"
+          },
+          {
+            "label": "Action:loop",
+            "value": "Parse and add role claims @L95"
+          },
+          {
+            "label": "Action:loop",
+            "value": "Repeats work over a collection or condition @L96"
+          },
+          {
+            "label": "Action:return",
+            "value": "Return AuthenticationState with created identity @L103"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, User Roles, Tenant"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs:84:1",
+            "path": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_createstate_branch_93_93",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(rolesStr))",
+        "responsibility": "if (!string.IsNullOrEmpty(rolesStr))",
+        "technologyHints": [
+          "csharp",
+          "AuthenticationStateProvider",
+          "Client-side caching",
+          "Storage-backed authentication"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "NexusAuthenticationStateProvider"
+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(rolesStr)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, User Roles, Tenant"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs:93:1",
+            "path": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+            "line": 93,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "sourceLine": 93,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_services_serveridentityservice_cs_file_1",
+        "label": "ServerIdentityService",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "service",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Constructor that injects identity, http context, mediator and native storage dependencies.",
+        "responsibility": "Constructor that injects identity, http context, mediator and native storage dependencies.",
+        "technologyHints": [
+          "csharp",
+          "Identity Adapter",
+          "Facade",
+          "Mediator (consumes query)"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "ServerIdentityService"
+          },
+          {
+            "label": "Signature",
+            "value": "(userManager: UserManager<NexusUser>, signInManager: SignInManager<NexusUser>, httpContextAccessor: IHttpContextAccessor, mediator: IMediator, storageService: INativeStorageService) -> ServerIdentityService"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Save DI dependencies @L32"
+          },
+          {
+            "label": "Domain",
+            "value": "User, SubscriptionPlan, Tenant"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Services/ServerIdentityService.cs:1:1",
+            "path": "NexusReader.Web/Services/ServerIdentityService.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Services/ServerIdentityService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Services/ServerIdentityService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_services_serveridentityservice_cs_loginasync_39",
+        "label": "LoginAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
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+      "subgraphs": [
+        {
+          "id": "NexusReader_Application_Security_Authorization_ProUserHandler",
+          "label": "ProUserHandler"
+        },
+        {
+          "id": "NexusReader_Web_Client_Handlers_AuthenticationHeaderHandler",
+          "label": "AuthenticationHeaderHandler"
+        },
+        {
+          "id": "NexusReader_UI_Shared_Services_NexusAuthenticationStateProvider",
+          "label": "NexusAuthenticationStateProvider"
+        },
+        {
+          "id": "NexusReader_Web_Services_ServerIdentityService",
+          "label": "ServerIdentityService"
+        }
+      ],
+      "metadata": {
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+          "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+          "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+          "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+          "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+          "NexusReader.Web/Services/ServerIdentityService.cs",
+          "NexusReader.Application/Queries/User/GetUserProfileQuery.cs"
+        ]
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/src/.documentation/flows/web-client-wasm.md b/src/.documentation/flows/web-client-wasm.md
new file mode 100644
index 0000000..617adaa
--- /dev/null
+++ b/src/.documentation/flows/web-client-wasm.md
@@ -0,0 +1,469 @@
+## Blazor WebAssembly Client: hosting, handlers, and platform services
+
+This document summarizes how the NexusReader Web.Client configures WASM hosting, HTTP/auth handlers, and Wasm-specific platform services and how shared UI components integrate with server APIs.
+
+=== DIAGRAM 1: Dependency and Model Map (dependency-map) ===
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_file_nexusreader_web_client_services_wasmepubservice_cs_file_1["WasmEpubReader"]
+    flow_file_nexusreader_web_client_services_webplatformservice_cs_file_1["WebPlatformService"]
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1["AuthenticationHeaderHandler"]
+    flow_file_nexusreader_web_client_nexusreader_web_client_csproj_file_1["NexusReader.Web.Client.csproj"]
+    flow_file_nexusreader_web_client_services_wasmknowledgeservice_cs_file_1["WasmKnowledgeService"]
+    flow_type_nexusreader_web_client_handlers_authenticationheaderhandler_cs_authenticationheaderhandler_14[/"AuthenticationHeaderHandler"/]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+    flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+    flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+    flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1 -->|model AuthenticationHeaderHandler| flow_type_nexusreader_web_client_handlers_authenticationheaderhandler_cs_authenticationheaderhandler_14
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    flow_file_nexusreader_web_client_services_webplatformservice_cs_file_1 -->|model WebPlatformService| flow_type_nexusreader_web_client_services_webplatformservice_cs_webplatformservice_7
+    click flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1 href "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_handlers_authenticationheaderhandler_cs_authenticationheaderhandler_14 href "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:14:1" "Open source"
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_file_nexusreader_web_client_services_wasmepubservice_cs_file_1 href "vscode://file/NexusReader.Web.Client/Services/WasmEpubService.cs:1:1" "Open source"
+    click flow_file_nexusreader_web_client_services_wasmknowledgeservice_cs_file_1 href "vscode://file/NexusReader.Web.Client/Services/WasmKnowledgeService.cs:1:1" "Open source"
+    click flow_file_nexusreader_web_client_services_webplatformservice_cs_file_1 href "vscode://file/NexusReader.Web.Client/Services/WebPlatformService.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_services_webplatformservice_cs_webplatformservice_7 href "vscode://file/NexusReader.Web.Client/Services/WebPlatformService.cs:7:1" "Open source"
+    click flow_file_nexusreader_web_client_nexusreader_web_client_csproj_file_1 href "vscode://file/NexusReader.Web.Client/NexusReader.Web.Client.csproj:1:1" "Open source"
+```
+
+This map shows Program.cs wiring: configured HttpClient, AuthenticationHeaderHandler, NexusAuthenticationStateProvider, and WASM implementations (WasmEpubReader, WasmKnowledgeService, WebPlatformService). It highlights throwaway server-side stubs (Throwing*) used in the client build.
+
+=== DIAGRAM 2: Startup and Service Registration Flow (primary-runtime) ===
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    subgraph flow_1_nexusreader_web_client_program_cs["Program.cs"]
+    end
+    subgraph flow_2_nexusreader_maui_mauiprogram_cs["MauiProgram"]
+    end
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1["MauiProgram"]
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_web_client_nexusreader_web_client_csproj_project_configuration_1["project-configuration"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_file_nexusreader_web_client_nexusreader_web_client_csproj_file_1["NexusReader.Web.Client.csproj"]
+    flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38[/"HttpClient (configured)"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28[/"MauiPlatformService"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29[/"MauiStorageService"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33[/"NexusAuthenticationStateProvider (via factory)"/]
+    flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1[/"ThemeService, FocusModeService, QuizStateService, ReaderNavigationService, KnowledgeGraphService, ReaderInteractionService, KnowledgeCoordinator, SyncService, IdentityService"/]
+    flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+    flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+    flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+    flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+    flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+    flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+    flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|HttpClient| flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|IPlatformService| flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|INativeStorageService| flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|Microsoft.AspNetCore.Components.Authorization.AuthenticationStateProvider| flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33
+    flow_file_nexusreader_maui_mauiprogram_cs_file_1 -->|UI and app state services| flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1
+    flow_file_nexusreader_web_client_nexusreader_web_client_csproj_file_1 -->|unknown| flow_method_nexusreader_web_client_nexusreader_web_client_csproj_project_configuration_1
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|unknown| flow_method_nexusreader_web_client_program_cs_run_wasm_host_59
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_run_wasm_host_59 href "vscode://file/NexusReader.Web.Client/Program.cs:59:1" "Open source"
+    click flow_file_nexusreader_web_client_nexusreader_web_client_csproj_file_1 href "vscode://file/NexusReader.Web.Client/NexusReader.Web.Client.csproj:1:1" "Open source"
+    click flow_method_nexusreader_web_client_nexusreader_web_client_csproj_project_configuration_1 href "vscode://file/NexusReader.Web.Client/NexusReader.Web.Client.csproj:1:1" "Open source"
+    click flow_file_nexusreader_maui_mauiprogram_cs_file_1 href "vscode://file/NexusReader.Maui/MauiProgram.cs:1:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28 href "vscode://file/NexusReader.Maui/MauiProgram.cs:28:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29 href "vscode://file/NexusReader.Maui/MauiProgram.cs:29:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32 href "vscode://file/NexusReader.Maui/MauiProgram.cs:32:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33 href "vscode://file/NexusReader.Maui/MauiProgram.cs:33:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38 href "vscode://file/NexusReader.Maui/MauiProgram.cs:38:1" "Open source"
+    click flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1 href "vscode://file/NexusReader.Maui/MauiProgram.cs:1:1" "Open source"
+```
+
+This flow contrasts WASM Program.cs with MAUI startup. It highlights where HttpClient and NexusAuthenticationStateProvider are registered and where the WASM host is run.
+
+=== DIAGRAM 3: Program.cs Flow (primary-runtime) ===
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart TD
+    subgraph flow_1_nexusreader_web_client_program_cs["Program.cs"]
+    end
+    subgraph flow_2_nexusreader_maui_mauiprogram_cs["MauiProgram"]
+    end
+    subgraph flow_0_nexusreader_web_program_cs["Program.cs"]
+    end
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_method_nexusreader_web_program_cs_program_top_level_29["Program (top-level)"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62{"Evaluates branch condition"}
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66{"Falls back to alternate path"}
+    flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125["Reads repository or persistence state"]
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 -->|fallback| flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 -->|Reads repository or persistence state| flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|FindAuthorByNameAsync| flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|GetService| flow_method_nexusreader_web_client_program_cs_getservice_71
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|Program top-level startup| flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|unknown| flow_method_nexusreader_web_client_program_cs_run_wasm_host_59
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+    flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    flow_file_nexusreader_web_program_cs_file_1 -->|Program top-level| flow_method_nexusreader_web_program_cs_program_top_level_29
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 -->|Reads repository or persistence state| flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88
+    flow_method_nexusreader_web_client_program_cs_getservice_71 -->|returns null| flow_action_nexusreader_web_client_program_cs_getservice_return_71_71
+    flow_method_nexusreader_web_program_cs_program_top_level_29 -->|true / false| flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_run_wasm_host_59 href "vscode://file/NexusReader.Web.Client/Program.cs:59:1" "Open source"
+    click flow_file_nexusreader_web_program_cs_file_1 href "vscode://file/NexusReader.Web/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_program_cs_program_top_level_29 href "vscode://file/NexusReader.Web/Program.cs:29:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 href "vscode://file/NexusReader.Web/Program.cs:62:1" "Open source"
+```
+
+This flow highlights Program.cs responsibilities: startup, service resolution, and fallback behaviors. It shows where client methods may read persistence or return null for optional services.
+
+=== DIAGRAM 4: Program.cs Execution Control Flow (control-flow) ===
+```mermaid
+flowchart TD
+    subgraph NexusReader_Web_Client_Program["Program"]
+    end
+    subgraph NexusReader_Web_Program["Program"]
+    end
+    subgraph NexusReader_Application_DependencyInjection["DependencyInjection"]
+    end
+    subgraph NexusReader_Infrastructure_DependencyInjection["DependencyInjection"]
+    end
+    flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+    flow_method_nexusreader_application_dependencyinjection_cs_addapplication_8["AddApplication"]
+    flow_method_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_31["AddInfrastructure"]
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88["FindAuthorByNameAsync"]
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15["Program (top-level startup)"]
+    flow_method_nexusreader_web_client_program_cs_run_wasm_host_59["Run WASM Host"]
+    flow_method_nexusreader_web_program_cs_program_top_level_29["Program (top-level)"]
+    flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62{"Evaluates branch condition"}
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66{"Falls back to alternate path"}
+    flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125["Reads repository or persistence state"]
+    flow_action_nexusreader_web_program_cs_program_top_level_repository_read_126_126["Reads repository or persistence state"]
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 -->|fallback| flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 -->|Reads repository or persistence state| flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 -->|AddApplication| flow_method_nexusreader_application_dependencyinjection_cs_addapplication_8
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 -->|AddInfrastructure| flow_method_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_31
+    flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125 -->|Reads repository or persistence state| flow_action_nexusreader_web_program_cs_program_top_level_repository_read_126_126
+    flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 -->|Reads repository or persistence state| flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88
+    flow_method_nexusreader_web_client_program_cs_getservice_71 -->|returns null| flow_action_nexusreader_web_client_program_cs_getservice_return_71_71
+    flow_method_nexusreader_web_program_cs_program_top_level_29 -->|true / false| flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15 href "vscode://file/NexusReader.Web.Client/Program.cs:15:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_method_nexusreader_web_client_program_cs_run_wasm_host_59 href "vscode://file/NexusReader.Web.Client/Program.cs:59:1" "Open source"
+    click flow_file_nexusreader_web_program_cs_file_1 href "vscode://file/NexusReader.Web/Program.cs:1:1" "Open source"
+    click flow_method_nexusreader_web_program_cs_program_top_level_29 href "vscode://file/NexusReader.Web/Program.cs:29:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 href "vscode://file/NexusReader.Web/Program.cs:62:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 href "vscode://file/NexusReader.Web/Program.cs:66:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125 href "vscode://file/NexusReader.Web/Program.cs:125:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_repository_read_126_126 href "vscode://file/NexusReader.Web/Program.cs:126:1" "Open source"
+    click flow_method_nexusreader_application_dependencyinjection_cs_addapplication_8 href "vscode://file/NexusReader.Application/DependencyInjection.cs:8:1" "Open source"
+    click flow_method_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_31 href "vscode://file/NexusReader.Infrastructure/DependencyInjection.cs:31:1" "Open source"
+```
+
+This control view emphasizes DI guardrails: server Program runs AddApplication/AddInfrastructure, while client Program keeps lightweight WASM registrations and safe fallbacks.
+
+=== DIAGRAM 5: Program.cs Contracts and Entities (class-diagram) ===
+```mermaid
+classDiagram
+    class flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+    class flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+    class flow_type_nexusreader_web_client_program_cs_configured_httpclient_40["configured HttpClient"]
+    class flow_type_nexusreader_web_client_program_cs_n_a_55["N/A"]
+    class flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33["NexusAuthenticationStateProvider"]
+    class flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74["ThrowingBookStorageService"]
+    class flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49["ThrowingDbContextFactory"]
+    class flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61["ThrowingDbContextFactory"]
+    class flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84["ThrowingEbookRepository"]
+    class flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66["ThrowingEmbeddingGenerator"]
+    class flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94["ThrowingSyncBroadcaster"]
+    class flow_type_nexusreader_web_client_program_cs_wasmepubreader_56["WasmEpubReader"]
+    class flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38["WasmKnowledgeService"]
+    class flow_type_nexusreader_web_client_program_cs_webplatformservice_18["WebPlatformService"]
+    class flow_type_nexusreader_web_program_cs_askquestionrequest_569["AskQuestionRequest"]
+    class flow_type_nexusreader_web_program_cs_groundednessrequest_567["GroundednessRequest"]
+    class flow_type_nexusreader_web_program_cs_knowledgerequest_566["KnowledgeRequest"]
+    class flow_type_nexusreader_web_program_cs_semanticsearchrequest_568["SemanticSearchRequest"]
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 : model ThrowingBookStorageService
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 : model ThrowingDbContextFactory
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 : model ThrowingEbookRepository
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 : model ThrowingEmbeddingGenerator
+    flow_file_nexusreader_web_client_program_cs_file_1 --> flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 : model ThrowingSyncBroadcaster
+    flow_file_nexusreader_web_program_cs_file_1 --> flow_type_nexusreader_web_program_cs_askquestionrequest_569 : dto AskQuestionRequest
+    flow_file_nexusreader_web_program_cs_file_1 --> flow_type_nexusreader_web_program_cs_groundednessrequest_567 : dto GroundednessRequest
+    flow_file_nexusreader_web_program_cs_file_1 --> flow_type_nexusreader_web_program_cs_knowledgerequest_566 : dto KnowledgeRequest
+    flow_file_nexusreader_web_program_cs_file_1 --> flow_type_nexusreader_web_program_cs_semanticsearchrequest_568 : dto SemanticSearchRequest
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_file_nexusreader_web_program_cs_file_1 href "vscode://file/NexusReader.Web/Program.cs:1:1" "Open source"
+    click flow_type_nexusreader_web_program_cs_knowledgerequest_566 href "vscode://file/NexusReader.Web/Program.cs:566:1" "Open source"
+    click flow_type_nexusreader_web_program_cs_groundednessrequest_567 href "vscode://file/NexusReader.Web/Program.cs:567:1" "Open source"
+    click flow_type_nexusreader_web_program_cs_semanticsearchrequest_568 href "vscode://file/NexusReader.Web/Program.cs:568:1" "Open source"
+    click flow_type_nexusreader_web_program_cs_askquestionrequest_569 href "vscode://file/NexusReader.Web/Program.cs:569:1" "Open source"
+```
+
+This class view shows contract and DTO differences: server Program exposes request DTOs while the client maps interfaces to WASM concrete types and server-side persistence is stubbed.
+
+=== DIAGRAM 6: Program.cs Layer View (dependency-map) ===
+```mermaid
+---
+config:
+  flowchart:
+    defaultRenderer: "elk"
+---
+flowchart LR
+    subgraph layer_frontend["frontend"]
+        flow_file_nexusreader_web_client_program_cs_file_1["Program.cs"]
+        flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88["Reads repository or persistence state"]
+        flow_type_nexusreader_web_client_program_cs_configured_httpclient_40[/"configured HttpClient"/]
+        flow_type_nexusreader_web_client_program_cs_n_a_55[/"N/A"/]
+        flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33[/"NexusAuthenticationStateProvider"/]
+        flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74[/"ThrowingBookStorageService"/]
+        flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49[/"ThrowingDbContextFactory"/]
+        flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61[/"ThrowingDbContextFactory"/]
+        flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84[/"ThrowingEbookRepository"/]
+        flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66[/"ThrowingEmbeddingGenerator"/]
+        flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94[/"ThrowingSyncBroadcaster"/]
+        flow_type_nexusreader_web_client_program_cs_wasmepubreader_56[/"WasmEpubReader"/]
+        flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38[/"WasmKnowledgeService"/]
+        flow_type_nexusreader_web_client_program_cs_webplatformservice_18[/"WebPlatformService"/]
+        flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|uses| flow_type_nexusreader_web_client_program_cs_configured_httpclient_40
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|application services via extension| flow_type_nexusreader_web_client_program_cs_n_a_55
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|NexusAuthenticationStateProvider| flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingBookStorageService| flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IDbContextFactory AppDbContext>| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingDbContextFactory| flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEbookRepository| flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingEmbeddingGenerator| flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|model ThrowingSyncBroadcaster| flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IEpubReader| flow_type_nexusreader_web_client_program_cs_wasmepubreader_56
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IKnowledgeService| flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38
+        flow_file_nexusreader_web_client_program_cs_file_1 -->|IPlatformService| flow_type_nexusreader_web_client_program_cs_webplatformservice_18
+    end
+    subgraph layer_application["application"]
+        flow_file_nexusreader_web_program_cs_file_1["Program.cs"]
+        flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62{"Evaluates branch condition"}
+        flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66{"Falls back to alternate path"}
+        flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 -->|fallback| flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66
+    end
+    click flow_file_nexusreader_web_client_program_cs_file_1 href "vscode://file/NexusReader.Web.Client/Program.cs:1:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88 href "vscode://file/NexusReader.Web.Client/Program.cs:88:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61 href "vscode://file/NexusReader.Web.Client/Program.cs:61:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66 href "vscode://file/NexusReader.Web.Client/Program.cs:66:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74 href "vscode://file/NexusReader.Web.Client/Program.cs:74:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84 href "vscode://file/NexusReader.Web.Client/Program.cs:84:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94 href "vscode://file/NexusReader.Web.Client/Program.cs:94:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_webplatformservice_18 href "vscode://file/NexusReader.Web.Client/Program.cs:18:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33 href "vscode://file/NexusReader.Web.Client/Program.cs:33:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38 href "vscode://file/NexusReader.Web.Client/Program.cs:38:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_configured_httpclient_40 href "vscode://file/NexusReader.Web.Client/Program.cs:40:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49 href "vscode://file/NexusReader.Web.Client/Program.cs:49:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_n_a_55 href "vscode://file/NexusReader.Web.Client/Program.cs:55:1" "Open source"
+    click flow_type_nexusreader_web_client_program_cs_wasmepubreader_56 href "vscode://file/NexusReader.Web.Client/Program.cs:56:1" "Open source"
+    click flow_file_nexusreader_web_program_cs_file_1 href "vscode://file/NexusReader.Web/Program.cs:1:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 href "vscode://file/NexusReader.Web/Program.cs:62:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 href "vscode://file/NexusReader.Web/Program.cs:66:1" "Open source"
+```
+
+This layer view separates frontend WASM registrations from application server flows, clarifying which services are client-implemented versus server-only.
+
+=== DIAGRAM 7: Program.cs Guardrails and Failure Paths (control-flow) ===
+```mermaid
+flowchart TD
+    subgraph NexusReader_Web_Client_Program["Program"]
+    end
+    subgraph NexusReader_Web_Program["Program"]
+    end
+    flow_method_nexusreader_web_client_program_cs_getservice_71["GetService"]
+    flow_method_nexusreader_web_program_cs_program_top_level_29["Program (top-level)"]
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62{"Evaluates branch condition"}
+    flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66{"Falls back to alternate path"}
+    flow_action_nexusreader_web_client_program_cs_getservice_return_71_71(["returns null"])
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 -->|fallback| flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66
+    flow_method_nexusreader_web_client_program_cs_getservice_71 -->|returns null| flow_action_nexusreader_web_client_program_cs_getservice_return_71_71
+    flow_method_nexusreader_web_program_cs_program_top_level_29 -->|true / false| flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62
+    click flow_method_nexusreader_web_client_program_cs_getservice_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_action_nexusreader_web_client_program_cs_getservice_return_71_71 href "vscode://file/NexusReader.Web.Client/Program.cs:71:1" "Open source"
+    click flow_method_nexusreader_web_program_cs_program_top_level_29 href "vscode://file/NexusReader.Web/Program.cs:29:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62 href "vscode://file/NexusReader.Web/Program.cs:62:1" "Open source"
+    click flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66 href "vscode://file/NexusReader.Web/Program.cs:66:1" "Open source"
+```
+
+This diagram highlights guardrails: GetService may return null in the client and the server program evaluates branches to invoke fallback registrations.
+
+=== DIAGRAM 8: Method Flow Details (method-flow) ===
+```mermaid
+flowchart TD
+    subgraph NexusReader_Web_Client_Handlers_AuthenticationHeaderHandler["AuthenticationHeaderHandler"]
+    end
+    subgraph NexusReader_Infrastructure_RealTime_SyncHub["SyncHub"]
+    end
+    subgraph NexusReader_Infrastructure_Services_EpubReaderService["EpubReaderService"]
+    end
+    flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1["EpubReaderService"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28["OnConnectedAsync"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38["OnDisconnectedAsync"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14["SyncHub"]
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19["UpdateProgress"]
+    flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175["CountWords"]
+    flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112["CloneHttpRequestMessageAsync"]
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21["Reads repository or persistence state"]
+    flow_action_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_guard_clause_177_177{"Empty text check"}
+    flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119{"Evaluates branch condition"}
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237{"Evaluates branch condition"}
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1["SyncHub"]
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1["AuthenticationHeaderHandler"]
+    flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237 -->|SyncHub| flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|OnConnectedAsync| flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|OnDisconnectedAsync| flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38
+    flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1 -->|UpdateProgress| flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19
+    flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1 -->|CountWords| flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175
+    flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1 -->|CloneHttpRequestMessageAsync| flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112
+    flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28 -->|Reads repository or pe
+
+... (truncated from 59347 chars)
+```
+
+This method-level flow links the client AuthenticationHeaderHandler to HTTP cloning logic and shows interactions with infrastructure (SyncHub, EpubReader). It indicates where branch and guard checks occur and where complex flows are truncated for brevity.
+
+### Key Files
+- NexusReader.Web.Client/Program.cs
+- NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs
+- NexusReader.Web.Client/Services/WasmEpubService.cs
+- NexusReader.Web.Client/Services/WasmKnowledgeService.cs
+- NexusReader.Web.Client/Services/WebPlatformService.cs
+- NexusReader.Web.Client/NexusReader.Web.Client.csproj
+
+<div hidden data-ai-mermaid-metadata-appendix>
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+</div>
+
+---
+
+## See Also
+
+- [Application Layer: Commands, Queries and DTOs](../domains/application-layer.md)
+- [Security, Identity and Authorization](security-identity-auth.md)
+- [Real-Time Sync, SignalR and Broadcast](realtime-and-sync.md)
+- [Project Overview and Architecture](../collections/overview.md)
+- [Top Business Flows](../business/top-business-flows.md)
diff --git a/src/.documentation/flows/web-client-wasm.meta.json b/src/.documentation/flows/web-client-wasm.meta.json
new file mode 100644
index 0000000..f3a6aba
--- /dev/null
+++ b/src/.documentation/flows/web-client-wasm.meta.json
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+            "label": "Signature",
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+            "label": "Calls",
+            "value": "0"
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+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
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+          {
+            "label": "Shape",
+            "value": "model"
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+          {
+            "label": "Fields",
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+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
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+            "key": "source",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
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+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
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+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
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+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
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+        ],
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+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+        "detailItems": [
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+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
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+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
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+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_services_wasmepubservice_cs_file_1",
+        "label": "WasmEpubReader",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Constructs the WASM EPUB reader and stores an HttpClient instance for remote chapter retrieval.",
+        "responsibility": "Constructs the WASM EPUB reader and stores an HttpClient instance for remote chapter retrieval.",
+        "technologyHints": [
+          "csharp",
+          "Client Adapter",
+          "Extractor"
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+        "detailItems": [
+          {
+            "label": "Owner",
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+          {
+            "label": "Signature",
+            "value": "(httpClient: HttpClient) -> WasmEpubReader"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Store HttpClient @L14"
+          },
+          {
+            "label": "Domain",
+            "value": "Epub, ReaderPage, LocalEpubMetadata"
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+        ],
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+          {
+            "key": "source",
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+            "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+            "line": 1,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Services/WasmEpubService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_services_wasmknowledgeservice_cs_file_1",
+        "label": "WasmKnowledgeService",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "WASM-side implementation of IKnowledgeService that forwards knowledge/AI related requests from the Blazor WebAssembly client to server HTTP endpoints and returns typed Result<T> responses.",
+        "responsibility": "Client-side WASM service that centralizes HTTP calls to /api/knowledge endpoints, applies consistent Result<T> success/failure mapping, and provides small helper CallKnowledgeApiAsync to reduce duplication.",
+        "technologyHints": [
+          "csharp",
+          "HttpClient wrapper",
+          "Facade / integration client"
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+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "WasmKnowledgeService"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgePacket, RelevantContext, Groundedness"
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+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Services/WasmKnowledgeService.cs:1:1",
+            "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+            "line": 1,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_services_webplatformservice_cs_file_1",
+        "label": "WebPlatformService",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Concrete platform service for the web client that implements IPlatformService using JS interop.",
+        "responsibility": "Concrete platform service for the web client that implements IPlatformService using JS interop.",
+        "technologyHints": [
+          "csharp",
+          "Adapter (platform abstraction)",
+          "Facade (simple wrappers for platform features)"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "WebPlatformService"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_jsRuntime",
+            "value": "IJSRuntime required"
+          },
+          {
+            "label": "Domain",
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+            "label": "Owner",
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+            "label": "Shape",
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+          {
+            "label": "Fields",
+            "value": "0"
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+          {
+            "label": "Domain",
+            "value": "Identity (AuthenticationStateProvider), Sync, KnowledgeGraph / KnowledgeCoordinator"
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+      {
+        "id": "flow_type_nexusreader_maui_mauiprogram_cs_mauiplatformservice_28",
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+        "summary": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging.",
+        "responsibility": "Sets HttpClient BaseAddress to http://10.0.2.2:5000 (typical Android emulator -> host routing); composes Application layer via AddApplication() and registers MediatR scanning the Application assembly; startup protected by try/catch that writes Debug output and rethrows.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
+        ],
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+          {
+            "label": "Owner",
+            "value": "MauiProgram"
+          },
+          {
+            "label": "Domain",
+            "value": "Identity (AuthenticationStateProvider), Sync, KnowledgeGraph / KnowledgeCoordinator"
+          }
+        ],
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+          {
+            "key": "source",
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+            "line": 28,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Maui/MauiProgram.cs",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Maui/MauiProgram.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29",
+        "label": "MauiStorageService",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging.",
+        "responsibility": "Sets HttpClient BaseAddress to http://10.0.2.2:5000 (typical Android emulator -> host routing); composes Application layer via AddApplication() and registers MediatR scanning the Application assembly; startup protected by try/catch that writes Debug output and rethrows.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "MauiProgram"
+          },
+          {
+            "label": "Domain",
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+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Maui/MauiProgram.cs:29:1",
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Maui/MauiProgram.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging.",
+        "responsibility": "Sets HttpClient BaseAddress to http://10.0.2.2:5000 (typical Android emulator -> host routing); composes Application layer via AddApplication() and registers MediatR scanning the Application assembly; startup protected by try/catch that writes Debug output and rethrows.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
+        ],
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+          {
+            "label": "Owner",
+            "value": "MauiProgram"
+          },
+          {
+            "label": "Domain",
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+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Maui/MauiProgram.cs:32:1",
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "line": 32,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Maui/MauiProgram.cs",
+        "sourceLine": 32,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Maui/MauiProgram.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33",
+        "label": "NexusAuthenticationStateProvider (via factory)",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging.",
+        "responsibility": "Sets HttpClient BaseAddress to http://10.0.2.2:5000 (typical Android emulator -> host routing); composes Application layer via AddApplication() and registers MediatR scanning the Application assembly; startup protected by try/catch that writes Debug output and rethrows.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "MauiProgram"
+          },
+          {
+            "label": "Domain",
+            "value": "Identity (AuthenticationStateProvider), Sync, KnowledgeGraph / KnowledgeCoordinator"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Maui/MauiProgram.cs:33:1",
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Maui/MauiProgram.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Maui/MauiProgram.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38",
+        "label": "HttpClient (configured)",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging.",
+        "responsibility": "Sets HttpClient BaseAddress to http://10.0.2.2:5000 (typical Android emulator -> host routing); composes Application layer via AddApplication() and registers MediatR scanning the Application assembly; startup protected by try/catch that writes Debug output and rethrows.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "MauiProgram"
+          },
+          {
+            "label": "Domain",
+            "value": "Identity (AuthenticationStateProvider), Sync, KnowledgeGraph / KnowledgeCoordinator"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Maui/MauiProgram.cs:38:1",
+            "path": "NexusReader.Maui/MauiProgram.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Maui/MauiProgram.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Maui/MauiProgram.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_maui_mauiprogram_cs_themeservice_focusmodeservice_quizstateservice_readernavigationservice_knowledgegraphservice_readerinteractionservice_knowledgecoordinator_syncservice_identityservice_1",
+        "label": "ThemeService, FocusModeService, QuizStateService, ReaderNavigationService, KnowledgeGraphService, ReaderInteractionService, KnowledgeCoordinator, SyncService, IdentityService",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging.",
+        "responsibility": "Sets HttpClient BaseAddress to http://10.0.2.2:5000 (typical Android emulator -> host routing); composes Application layer via AddApplication() and registers MediatR scanning the Application assembly; startup protected by try/catch that writes Debug output and rethrows.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "MauiProgram"
+          },
+          {
+            "label": "Domain",
+            "value": "Identity (AuthenticationStateProvider), Sync, KnowledgeGraph / KnowledgeCoordinator"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Maui/MauiProgram.cs:1:1",
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+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Maui/MauiProgram.cs",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Maui/MauiProgram.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
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+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
+        "label": "Program (top-level startup)",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:15:1",
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+            "tooltip": "Open source"
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+        ],
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+        "sourceTargetKind": "method",
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
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+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
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+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "method",
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+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "responsibility": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:125:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 125,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 125,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
+        "label": "Program (top-level startup)",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:15:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 15,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 15,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "responsibility": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:125:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 125,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 125,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_126_126",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
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+        "architecturalLayer": "backend",
+        "summary": "context.Request.Path.StartsWithSegments(\"/identity\") ||",
+        "responsibility": "context.Request.Path.StartsWithSegments(\"/identity\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
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+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:126:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 126,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 126,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_dependencyinjection_cs_addapplication_8",
+        "label": "AddApplication",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Extension method that registers application mapping configuration and MediatR handlers, returning the IServiceCollection for chaining.",
+        "responsibility": "Extension method that registers application mapping configuration and MediatR handlers, returning the IServiceCollection for chaining.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection extension",
+          "Service registration"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "DependencyInjection"
+          },
+          {
+            "label": "Signature",
+            "value": "(services: IServiceCollection) -> IServiceCollection"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register mapping configuration @L10"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register MediatR handlers @L11"
+          },
+          {
+            "label": "Action:return",
+            "value": "Return IServiceCollection @L13"
+          },
+          {
+            "label": "Action:return",
+            "value": "Returns result @L13"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/DependencyInjection.cs:8:1",
+            "path": "NexusReader.Application/DependencyInjection.cs",
+            "line": 8,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DependencyInjection.cs",
+        "sourceLine": 8,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/DependencyInjection.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_31",
+        "label": "AddInfrastructure",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Configures and registers infrastructure services and external clients (DBs, AI, vector/graph stores, job processing, authorization, and app-layer implementations) into the DI container.",
+        "responsibility": "Configures and registers infrastructure services and external clients (DBs, AI, vector/graph stores, job processing, authorization, and app-layer implementations) into the DI container.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection / Service Registration",
+          "Factory (DbContextFactory)",
+          "Resilience (retry pipeline)",
+          "Repository"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "DependencyInjection"
+          },
+          {
+            "label": "Signature",
+            "value": "(this IServiceCollection services, IConfiguration configuration) -> IServiceCollection"
+          },
+          {
+            "label": "Calls",
+            "value": "12"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Selects DB provider @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L34"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L44"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Qdrant client registration @L56"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Neo4j driver registration @L60"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L64"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook / Epub processing, AI (chat/embeddings), Vector store (Qdrant)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/DependencyInjection.cs:31:1",
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+            "line": 31,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "sourceLine": 31,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/DependencyInjection.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_knowledgerequest_566",
+        "label": "KnowledgeRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Request DTO carrying free-text input and optional ebook context for knowledge APIs.",
+        "responsibility": "Request DTO carrying free-text input and optional ebook context for knowledge APIs.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Text",
+            "value": "string required"
+          },
+          {
+            "label": "EbookId",
+            "value": "Guid?"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:566:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 566,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 566,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_groundednessrequest_567",
+        "label": "GroundednessRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Request DTO for verifying answer groundedness in a context.",
+        "responsibility": "Request DTO for verifying answer groundedness in a context.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Answer",
+            "value": "string required"
+          },
+          {
+            "label": "Context",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:567:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 567,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 567,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_semanticsearchrequest_568",
+        "label": "SemanticSearchRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "DTO for semantic search requests with a limit.",
+        "responsibility": "DTO for semantic search requests with a limit.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "QueryText",
+            "value": "string required"
+          },
+          {
+            "label": "Limit",
+            "value": "int"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:568:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 568,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 568,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_askquestionrequest_569",
+        "label": "AskQuestionRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "DTO for question-asking APIs including optional ebook context and limit.",
+        "responsibility": "DTO for question-asking APIs including optional ebook context and limit.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "3"
+          },
+          {
+            "label": "Question",
+            "value": "string required"
+          },
+          {
+            "label": "EbookId",
+            "value": "Guid?"
+          },
+          {
+            "label": "Limit",
+            "value": "int"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:569:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 569,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 569,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:1:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_webplatformservice_18",
+        "label": "WebPlatformService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:18:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 18,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 18,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_nexusauthenticationstateprovider_33",
+        "label": "NexusAuthenticationStateProvider",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:33:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmknowledgeservice_38",
+        "label": "WasmKnowledgeService",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:38:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_configured_httpclient_40",
+        "label": "configured HttpClient",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:40:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_49",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:49:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:55:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 55,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 55,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:56:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 56,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 56,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "layer_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "failure_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_handlers_authenticationheaderhandler_cs_file_1",
+        "label": "AuthenticationHeaderHandler",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "DelegatingHandler that attaches JWTs to trusted requests and orchestrates token refresh and retry behavior.",
+        "responsibility": "DelegatingHandler that attaches JWTs to trusted requests and orchestrates token refresh and retry behavior.",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Signature",
+            "value": "(INativeStorageService storageService, IServiceProvider serviceProvider) -> AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Store injected services @L23"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "_storageService",
+            "value": "INativeStorageService required"
+          },
+          {
+            "label": "_serviceProvider",
+            "value": "IServiceProvider required"
+          },
+          {
+            "label": "TokenKey",
+            "value": "const string required"
+          },
+          {
+            "label": "_refreshSemaphore",
+            "value": "SemaphoreSlim required"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:1:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112",
+        "label": "CloneHttpRequestMessageAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Creates a deep-ish clone of an HttpRequestMessage including method, URI, version, headers and buffered content to allow safe retry.",
+        "responsibility": "Creates a deep-ish clone of an HttpRequestMessage including method, URI, version, headers and buffered content to allow safe retry.",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Signature",
+            "value": "(HttpRequestMessage req) -> Task<HttpRequestMessage>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Create new HttpRequestMessage clone @L114"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Copy request content stream and headers @L119"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L119"
+          },
+          {
+            "label": "Action:loop",
+            "value": "Repeats work over a collection or condition @L126"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Copy request headers @L132"
+          },
+          {
+            "label": "Action:loop",
+            "value": "Repeats work over a collection or condition @L132"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:112:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 112,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 112,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (req.Content != null)",
+        "responsibility": "if (req.Content != null)",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "req.Content != null"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:119:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 119,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 119,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!app.Environment.IsDevelopment())",
+        "responsibility": "if (!app.Environment.IsDevelopment())",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!app.Environment.IsDevelopment()"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:237:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 237,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 237,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "responsibility": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(mediator: IMediator) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Depends on IMediator @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores mediator @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_mediator",
+            "value": "IMediator required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:1:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "responsibility": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(mediator: IMediator) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Depends on IMediator @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores mediator @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_mediator",
+            "value": "IMediator required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:14:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 14,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 14,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1",
+        "label": "EpubReaderService",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "service",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Service that locates EPUB files recorded in the database, parses a requested chapter, splits the chapter into sanitized content blocks, injects AI-action trigger blocks at thresholds, and returns a ReaderPageViewModel for consumption by the application.",
+        "responsibility": "Important behaviors: DB lookup with user guard, file path resolution that handles dev/prod layouts, EPUB parsing via external library, paragraph extraction and HTML sanitization, word-count-based insertion of AI trigger blocks (WordThreshold = 1000), recursive navigation-title lookup, and robust error logging with Result-based failure propagation.",
+        "technologyHints": [
+          "csharp",
+          "Service",
+          "Repository-access (via DbContext)",
+          "Factory (CreateAiTrigger)",
+          "Parsing & sanitization pipeline"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "EpubReaderService"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Chapter/ReadingOrder, ContentBlock (TextSegmentBlock, AiActionTriggerBlock)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/EpubReaderService.cs:1:1",
+            "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19",
+        "label": "UpdateProgress",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+        "responsibility": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(pageId: string, ebookId: Guid, progress: double, chapterTitle: string? , chapterIndex: int) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L21"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads user id from connection context @L21"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Requires authenticated user id @L21"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L22"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Dispatches command to application layer @L24"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Includes connection id in command @L24"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:19:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 19,
+            "tooltip": "Open source"
+          }
+        ],
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+          "kind": "action",
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+          "kind": "type",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_374_374",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_381_381",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_switch_385_385",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_402_402",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_406_406",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_416_416",
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+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_418_418",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_419_419",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_424_424",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_439_439",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_441_441",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_442_442",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_444_444",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_460_460",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_470_470",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_log_472_472",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_473_473",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_477_477",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_480_480",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_485_485",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+            }
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+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_486_486",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_501_501",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_loop_505_505",
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+          "role": "startup",
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+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_512_512",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidenceReferences": [
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_517_517",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidenceReferences": [
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_529_529",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_532_532",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_536_536",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "kind": "action",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
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+            {
+              "path": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_summary_getsummaryandquizasync_guard_clause_285_285",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_summary_getsummaryandquizasync_branch_285_285",
+          "label": "Return Ok or BadRequest based on result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 285
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_summary_getsummaryandquizasync_return_286_286",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
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+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_knowledgeapi_post_map_getknowledgemapasync_289",
+          "label": "KnowledgeApi POST /map (GetKnowledgeMapAsync)",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
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+            }
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+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_map_getknowledgemapasync_repository_read_291_291",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 291
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_map_getknowledgemapasync_guard_clause_293_293",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidenceReferences": [
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+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_map_getknowledgemapasync_branch_293_293",
+          "label": "Return Ok or BadRequest based on result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_map_getknowledgemapasync_return_294_294",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_knowledgeapi_post_verify_groundedness_297",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "line": 297
+            }
+          ]
+        },
+        {
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 299,
+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          ]
+        },
+        {
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidenceReferences": [
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+        {
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+          "label": "Return Ok or BadRequest based on verification result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_verify_groundedness_return_302_302",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+        {
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+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+          ]
+        },
+        {
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+        },
+        {
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+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_search_searchlibrarysemanticallyasync_branch_309_309",
+          "label": "Return Ok or BadRequest based on result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidenceReferences": [
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+          ]
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "evidencePaths": [
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+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
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+          "evidenceReferences": [
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+          ]
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          ]
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_ask_askquestionasync_guard_clause_317_317",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_ask_askquestionasync_branch_317_317",
+          "label": "Return Ok or BadRequest based on result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_ask_askquestionasync_return_318_318",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_knowledgeapi_delete_api_knowledge_clearcacheasync_321",
+          "label": "KnowledgeApi DELETE /api/knowledge/ (ClearCacheAsync)",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+            }
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+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_delete_api_knowledge_clearcacheasync_branch_323_323",
+          "label": "Return Ok on success; BadRequest with message on failure",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_delete_api_knowledge_clearcacheasync_guard_clause_324_324",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+          "evidenceReferences": [
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+              "path": "NexusReader.Web/Program.cs",
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_delete_api_knowledge_clearcacheasync_return_327_327",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
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+}
\ No newline at end of file
diff --git a/src/.documentation/index.md b/src/.documentation/index.md
new file mode 100644
index 0000000..6257cc3
--- /dev/null
+++ b/src/.documentation/index.md
@@ -0,0 +1,38 @@
+## Project Overview
+
+NexusReader is a dotnet (C#) multi-target web + MAUI application implementing a reader platform; this scope includes server (ASP.NET Core), a Blazor WebAssembly client, a .NET MAUI mobile host, the Application/Domain layers (CQRS-like commands & queries), Infrastructure services (AI/knowledge, storage, billing), and EF Core persistence.
+
+Technology: .NET / C# (dotnet)
+Files: 198
+Entrypoints: NexusReader.Maui/MauiProgram.cs, NexusReader.Web.Client/Program.cs, NexusReader.Web/Program.cs
+
+### Start Here
+
+- [Business Overview](business/business-overview.md): ## Business Overview  Business Overview centers on account, ai token usage / limits, ai tokens and c...
+- [Top Business Flows](business/top-business-flows.md): ## Top Business Flows  Highest-value business flows that should be published as first-class system e...
+
+### Collections
+
+- [Collections](collections/index.md)
+- [Business](business/index.md)
+- [Domains](domains/index.md)
+- [Flows](flows/index.md)
+
+### Generated Documents
+
+- [Business Overview](business/business-overview.md): ## Business Overview  Business Overview centers on account, ai token usage / limits, ai tokens and c...
+- [Top Business Flows](business/top-business-flows.md): ## Top Business Flows  Highest-value business flows that should be published as first-class system e...
+- [Project Overview and Architecture](collections/overview.md): ## Project Overview and Architecture A concise high-level view of how the solution projects fit toge...
+- [Application Layer: Commands, Queries and DTOs](domains/application-layer.md): ## Application Layer: Commands, Queries and DTOs  Overview: Describes the Application project's comm...
+- [Data Layer, EF Core and Repositories](domains/data-and-persistence.md): ## Data Layer, EF Core and Repositories Overview: This document summarizes how EF Core is configured...
+- [Infrastructure Services: Knowledge, AI, Billing, Storage, Epub](domains/infrastructure-services.md): ## Infrastructure Services: Knowledge, AI, Billing, Storage, Epub Overview: Core infra services for ...
+- [MAUI Mobile Host: App wiring and platform services](domains/maui-mobile.md): ## MAUI Mobile Host: App wiring and platform services  This short doc explains how the MAUI mobile h...
+- [Real-Time Sync, SignalR and Broadcast](flows/realtime-and-sync.md): ## Real-Time Sync, SignalR and Broadcast Overview: Describes real-time reading-progress sync: how Up...
+- [Security, Identity and Authorization](flows/security-identity-auth.md): ## Security, Identity and Authorization  This document summarizes how identity and authorization are...
+- [Blazor WebAssembly Client: hosting, handlers, and platform services](flows/web-client-wasm.md): ## Blazor WebAssembly Client: hosting, handlers, and platform services  This document summarizes how...
+
+### Technology Stack
+
+- Microsoft.Extensions.Logging.Debug@10.0.0
+- Microsoft.AspNetCore.Components.WebView.Maui@10.0.20
+- Microsoft.Maui.Essentials@10.0.20
\ No newline at end of file
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+          "NexusReader.Web.Client/Program.cs"
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+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_n_a_55",
+        "label": "N/A",
+        "diagramId": "startup_runtime_graph",
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+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
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+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
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+        "detailItems": [
+          {
+            "label": "Domain",
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+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_wasmepubreader_56",
+        "label": "WasmEpubReader",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
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+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
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+          {
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+            "key": "source",
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
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+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_run_wasm_host_59",
+        "label": "Run WASM Host",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser.",
+        "responsibility": "This Program.cs is the WASM client entry: it wires browser-safe implementations and registers throw-only stand-ins for server-side concerns (DbContext, embedding generation, file storage, repository, real-time broadcasting) so the same DI graph compiles and validates in the browser; the actual server implementations must run on the API server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
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+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:59:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_web_client_nexusreader_web_client_csproj_file_1",
+        "label": "NexusReader.Web.Client.csproj",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Project file for the Blazor WebAssembly client project: declares SDK, target framework, build properties, NuGet package dependencies, and project references that link the client to application and shared UI projects.",
+        "responsibility": "SDK: Microsoft.NET.Sdk.BlazorWebAssembly; TargetFramework: net10.0; Blazor-specific properties set (NoDefaultLaunchSettingsFile, StaticWebAssetProjectMode, BlazorDisableThrowNavigationException); packs: MediatR, Blazor WASM runtime, Http extensions, EPUB library; references Application and UI.Shared projects.",
+        "technologyHints": [
+          "Blazor WebAssembly client",
+          "ProjectReference-based multi-project solution"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Client (WASM), Shared UI, Application layer integration"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/NexusReader.Web.Client.csproj:1:1",
+            "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/NexusReader.Web.Client.csproj"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_nexusreader_web_client_csproj_project_configuration_1",
+        "label": "project-configuration",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Project file for the Blazor WebAssembly client project: declares SDK, target framework, build properties, NuGet package dependencies, and project references that link the client to application and shared UI projects.",
+        "responsibility": "SDK: Microsoft.NET.Sdk.BlazorWebAssembly; TargetFramework: net10.0; Blazor-specific properties set (NoDefaultLaunchSettingsFile, StaticWebAssetProjectMode, BlazorDisableThrowNavigationException); packs: MediatR, Blazor WASM runtime, Http extensions, EPUB library; references Application and UI.Shared projects.",
+        "technologyHints": [
+          "Blazor WebAssembly client",
+          "ProjectReference-based multi-project solution"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "Client (WASM), Shared UI, Application layer integration"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/NexusReader.Web.Client.csproj:1:1",
+            "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+        "sourceLine": 1,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/NexusReader.Web.Client.csproj"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_application_dependencyinjection_cs_file_1",
+        "label": "DependencyInjection",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Provides application-level DI registrations (Mapster mapping config and MediatR handler registration) and exposes the application assembly for composition/root usage.",
+        "responsibility": "Intended to be called from the composition root (e.g., Web project startup) to wire up application mapping and MediatR handler discovery; exposes Assembly for scanning.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection extension",
+          "Service registration"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "DependencyInjection"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/DependencyInjection.cs:1:1",
+            "path": "NexusReader.Application/DependencyInjection.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DependencyInjection.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/DependencyInjection.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_dependencyinjection_cs_configured_via_addmapsterconfiguration_extension_10",
+        "label": "configured via AddMapsterConfiguration extension",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Provides application-level DI registrations (Mapster mapping config and MediatR handler registration) and exposes the application assembly for composition/root usage.",
+        "responsibility": "Intended to be called from the composition root (e.g., Web project startup) to wire up application mapping and MediatR handler discovery; exposes Assembly for scanning.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection extension",
+          "Service registration"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
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+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "line": 10,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DependencyInjection.cs",
+        "sourceLine": 10,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/DependencyInjection.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_dependencyinjection_cs_handlers_discovered_in_this_assembly_11",
+        "label": "handlers discovered in this assembly",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Provides application-level DI registrations (Mapster mapping config and MediatR handler registration) and exposes the application assembly for composition/root usage.",
+        "responsibility": "Intended to be called from the composition root (e.g., Web project startup) to wire up application mapping and MediatR handler discovery; exposes Assembly for scanning.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection extension",
+          "Service registration"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
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+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "line": 11,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DependencyInjection.cs",
+        "sourceLine": 11,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/DependencyInjection.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_dependencyinjection_cs_file_1",
+        "label": "DependencyInjection",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Registers and configures infrastructure dependencies: DB contexts, external clients (Qdrant, Neo4j), Hangfire, AI clients/resilience, app services, authorization policies, and related configuration for the NexusReader solution.",
+        "responsibility": "File is the central infra DI composition point: chooses DB provider (Postgres vs Sqlite), configures Hangfire conditionally, registers external AI/vector/graph clients, installs an AI retry pipeline that inspects exception messages for throttling and service errors, warns when AI key is missing, and registers scoped services matching DbContext lifetime to prevent MAUI singleton issues.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection / Service Registration",
+          "Factory (DbContextFactory)",
+          "Resilience (retry pipeline)",
+          "Repository"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
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+            "value": "Ebook / Epub processing, AI (chat/embeddings), Vector store (Qdrant)"
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+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "line": 1,
+            "tooltip": "Open source"
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+        ],
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+        "sourcePath": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/DependencyInjection.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_infrastructure_dependencyinjection_cs_appdbcontext_36",
+        "label": "AppDbContext",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Registers and configures infrastructure dependencies: DB contexts, external clients (Qdrant, Neo4j), Hangfire, AI clients/resilience, app services, authorization policies, and related configuration for the NexusReader solution.",
+        "responsibility": "File is the central infra DI composition point: chooses DB provider (Postgres vs Sqlite), configures Hangfire conditionally, registers external AI/vector/graph clients, installs an AI retry pipeline that inspects exception messages for throttling and service errors, warns when AI key is missing, and registers scoped services matching DbContext lifetime to prevent MAUI singleton issues.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection / Service Registration",
+          "Factory (DbContextFactory)",
+          "Resilience (retry pipeline)",
+          "Repository"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "DependencyInjection"
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+          {
+            "label": "Domain",
+            "value": "Ebook / Epub processing, AI (chat/embeddings), Vector store (Qdrant)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "line": 36,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "sourceLine": 36,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/DependencyInjection.cs"
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+      },
+      {
+        "id": "flow_type_nexusreader_infrastructure_dependencyinjection_cs_appdbcontext_41",
+        "label": "AppDbContext",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Registers and configures infrastructure dependencies: DB contexts, external clients (Qdrant, Neo4j), Hangfire, AI clients/resilience, app services, authorization policies, and related configuration for the NexusReader solution.",
+        "responsibility": "File is the central infra DI composition point: chooses DB provider (Postgres vs Sqlite), configures Hangfire conditionally, registers external AI/vector/graph clients, installs an AI retry pipeline that inspects exception messages for throttling and service errors, warns when AI key is missing, and registers scoped services matching DbContext lifetime to prevent MAUI singleton issues.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection / Service Registration",
+          "Factory (DbContextFactory)",
+          "Resilience (retry pipeline)",
+          "Repository"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "DependencyInjection"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook / Epub processing, AI (chat/embeddings), Vector store (Qdrant)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "line": 41,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "sourceLine": 41,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/DependencyInjection.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_abstractions_services_iknowledgeservice_cs_groundednessresult_19",
+        "label": "GroundednessResult",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Represents the result of a groundedness check: score, textual rationale, and a boolean grounded flag.",
+        "responsibility": "Represents the result of a groundedness check: score, textual rationale, and a boolean grounded flag.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Result-wrapping (FluentResults)"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IKnowledgeService"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "3"
+          },
+          {
+            "label": "Score",
+            "value": "float required"
+          },
+          {
+            "label": "Rationale",
+            "value": "string required"
+          },
+          {
+            "label": "IsGrounded",
+            "value": "bool required"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgePacket, Groundedness, Semantic Search"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:19:1",
+            "path": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+            "line": 19,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+        "sourceLine": 19,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_verifygroundednessasync_13",
+        "label": "VerifyGroundednessAsync",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Assess whether an answer is grounded in provided context and return a scored rationale.",
+        "responsibility": "Assess whether an answer is grounded in provided context and return a scored rationale.",
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+          "csharp",
+          "Service Interface",
+          "Result-wrapping (FluentResults)"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IKnowledgeService"
+          },
+          {
+            "label": "Signature",
+            "value": "(answer: string, context: string, tenantId: string, cancellationToken: CancellationToken = default) -> Task<Result<GroundednessResult>>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgePacket, Groundedness, Semantic Search"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "path": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+            "line": 13,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+        "sourceLine": 13,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_application_abstractions_services_iplatformservice_cs_file_1",
+        "label": "IPlatformService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Defines an application-level platform abstraction for device capabilities (vibration) and a small device info model (DeviceContext) used by UI/client layers to adapt behavior per device.",
+        "responsibility": "Pure abstraction: interface declares vibration operations and a device-context DTO; implementations will be platform-specific (WASM/MAUI/desktop) and are responsible for actual vibration and device info retrieval.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
+          },
+          {
+            "label": "Domain",
+            "value": "Device, Vibration, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:1:1",
+            "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_abstractions_services_iknowledgeservice_cs_askquestionasync_15",
+        "label": "AskQuestionAsync",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Ask a question in the tenant/optional ebook context and receive a grounded response (with limit for candidate/context size).",
+        "responsibility": "Ask a question in the tenant/optional ebook context and receive a grounded response (with limit for candidate/context size).",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Result-wrapping (FluentResults)"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IKnowledgeService"
+          },
+          {
+            "label": "Signature",
+            "value": "(question: string, tenantId: string, ebookId: Guid? = null, limit: int = 5, cancellationToken: CancellationToken = default) -> Task<Result<GroundedResponseDto>>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgePacket, Groundedness, Semantic Search"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IKnowledgeService.cs:15:1",
+            "path": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+            "line": 15,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+        "sourceLine": 15,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_program_top_level_startup_15",
+        "label": "Program (top-level startup)",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "responsibility": "Create the WebAssemblyHostBuilder, register application and platform services, add HTTP client and dummy server-only stubs, then build and run the WASM host.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args: string[]) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped platform & UI services @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddScoped auth services and auth state provider @L30"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "AddHttpClient with auth message handler @L40"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register throw-only stubs for server-only services @L48"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build and run WASM host @L59"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:15:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 15,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 15,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_getservice_71",
+        "label": "GetService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Fallback service resolver stub that always returns null.",
+        "responsibility": "Fallback service resolver stub that always returns null.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_getservice_return_71_71",
+        "label": "returns null",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public object? GetService(...) => null",
+        "responsibility": "public object? GetService(...) => null",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Signature",
+            "value": "(Type serviceType, object? serviceKey = null) -> object?"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "returns null @L71"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:71:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 71,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 71,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_program_cs_findauthorbynameasync_88",
+        "label": "FindAuthorByNameAsync",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "responsibility": "Repository lookup stub that throws because repository access is unsupported in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_program_cs_findauthorbynameasync_repository_read_88_88",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "responsibility": "public Task<Author?> FindAuthorByNameAsync(string name, CancellationToken cancellationToken = default) => throw new NotSupportedException(ErrorMessage);",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Signature",
+            "value": "(string name, CancellationToken cancellationToken = default) -> Task<Author?>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L88"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L88"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:88:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 88,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 88,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingdbcontextfactory_61",
+        "label": "ThrowingDbContextFactory",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "responsibility": "IDbContextFactory implementation that prevents use of EF DbContext in WASM by throwing on creation.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "() -> AppDbContext"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "NotSupportedException @L63"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:61:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 61,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 61,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingembeddinggenerator_66",
+        "label": "ThrowingEmbeddingGenerator",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "responsibility": "IEmbeddingGenerator implementation that disables local embedding generation in WASM (throws on GenerateAsync).",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:66:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingbookstorageservice_74",
+        "label": "ThrowingBookStorageService",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "responsibility": "IBookStorageService implementation that throws for all file storage operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:74:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 74,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 74,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingebookrepository_84",
+        "label": "ThrowingEbookRepository",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "responsibility": "IEbookRepository implementation that throws for all repository operations in WASM.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "ErrorMessage",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:84:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_client_program_cs_throwingsyncbroadcaster_94",
+        "label": "ThrowingSyncBroadcaster",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "class",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "responsibility": "ISyncBroadcaster implementation that throws because real-time broadcasting must run on the server.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Host/Startup bootstrap",
+          "Null/Throwing stub (platform-specific feature gating)"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, Embedding"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Program.cs:94:1",
+            "path": "NexusReader.Web.Client/Program.cs",
+            "line": 94,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Program.cs",
+        "sourceLine": 94,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_ai_verifygroundednesscommand_cs_handle_return_20_20",
+        "label": "Returns result",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "return await _knowledgeService.VerifyGroundednessAsync(request.Answer, request.Context, request.TenantId, cancellationToken);",
+        "responsibility": "return await _knowledgeService.VerifyGroundednessAsync(request.Answer, request.Context, request.TenantId, cancellationToken);",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR) handler",
+          "Dependency Injection"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "VerifyGroundednessCommandHandler"
+          },
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Domain",
+            "value": "Groundedness, AI verification, KnowledgeService"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs:20:1",
+            "path": "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+            "line": 20,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+        "sourceLine": 20,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_vibratesuccessasync_7",
+        "label": "VibrateSuccessAsync",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Requests a short platform-specific 'success' vibration; returns a Result indicating success/failure.",
+        "responsibility": "Requests a short platform-specific 'success' vibration; returns a Result indicating success/failure.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
+          },
+          {
+            "label": "Signature",
+            "value": "() -> Task<Result>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "async result @L7"
+          },
+          {
+            "label": "Domain",
+            "value": "Device, Vibration, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:7:1",
+            "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+            "line": 7,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "sourceLine": 7,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_vibrateerrorasync_8",
+        "label": "VibrateErrorAsync",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Requests a short platform-specific 'error' vibration; returns a Result indicating success/failure.",
+        "responsibility": "Requests a short platform-specific 'error' vibration; returns a Result indicating success/failure.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
+          },
+          {
+            "label": "Signature",
+            "value": "() -> Task<Result>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "async result @L8"
+          },
+          {
+            "label": "Domain",
+            "value": "Device, Vibration, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:8:1",
+            "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+            "line": 8,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "sourceLine": 8,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_vibrateasync_9",
+        "label": "VibrateAsync",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Requests a platform vibration for the specified duration in milliseconds; returns a Result indicating success/failure.",
+        "responsibility": "Requests a platform vibration for the specified duration in milliseconds; returns a Result indicating success/failure.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
+          },
+          {
+            "label": "Signature",
+            "value": "(milliseconds: int) -> Task<Result>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "async result @L9"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "milliseconds @L9"
+          },
+          {
+            "label": "Domain",
+            "value": "Device, Vibration, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:9:1",
+            "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+            "line": 9,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "sourceLine": 9,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_abstractions_services_iplatformservice_cs_getdevicecontext_10",
+        "label": "GetDeviceContext",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Retrieves current device characteristics (model, manufacturer, type, orientation) wrapped in a Result.",
+        "responsibility": "Retrieves current device characteristics (model, manufacturer, type, orientation) wrapped in a Result.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
+          },
+          {
+            "label": "Signature",
+            "value": "() -> Result<DeviceContext>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:return",
+            "value": "synchronous result @L10"
+          },
+          {
+            "label": "Domain",
+            "value": "Device, Vibration, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:10:1",
+            "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+            "line": 10,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "sourceLine": 10,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_queries_library_asklibraryquestionquery_cs_handle_return_30_30",
+        "label": "Returns result",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "return",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "return await _knowledgeService.AskQuestionAsync(",
+        "responsibility": "return await _knowledgeService.AskQuestionAsync(",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR)",
+          "Query Handler",
+          "Dependency Injection"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AskLibraryQuestionQueryHandler"
+          },
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgeService, Library Question, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs:30:1",
+            "path": "NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs",
+            "line": 30,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs",
+        "sourceLine": 30,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_abstractions_services_iplatformservice_cs_devicecontext_13",
+        "label": "DeviceContext",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Represents device metadata (model, manufacturer, device type, display orientation) for platform-aware logic.",
+        "responsibility": "Represents device metadata (model, manufacturer, device type, display orientation) for platform-aware logic.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "Model",
+            "value": "string required"
+          },
+          {
+            "label": "Manufacturer",
+            "value": "string required"
+          },
+          {
+            "label": "DeviceType",
+            "value": "DeviceType required"
+          },
+          {
+            "label": "Orientation",
+            "value": "DisplayOrientation required"
+          },
+          {
+            "label": "Domain",
+            "value": "Device, Vibration, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:13:1",
+            "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+            "line": 13,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "sourceLine": 13,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_abstractions_services_iplatformservice_cs_devicetype_20",
+        "label": "DeviceType",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "enum",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Enumerates device categories used to adapt UI/behavior.",
+        "responsibility": "Enumerates device categories used to adapt UI/behavior.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
+          },
+          {
+            "label": "Shape",
+            "value": "enum"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "Unknown",
+            "value": "DeviceType required"
+          },
+          {
+            "label": "Phone",
+            "value": "DeviceType required"
+          },
+          {
+            "label": "Tablet",
+            "value": "DeviceType required"
+          },
+          {
+            "label": "Desktop",
+            "value": "DeviceType required"
+          },
+          {
+            "label": "Domain",
+            "value": "Device, Vibration, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:20:1",
+            "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+            "line": 20,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "sourceLine": 20,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_application_abstractions_services_iplatformservice_cs_displayorientation_28",
+        "label": "DisplayOrientation",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "enum",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Enumerates possible screen orientations to allow layout/behavior adjustments.",
+        "responsibility": "Enumerates possible screen orientations to allow layout/behavior adjustments.",
+        "technologyHints": [
+          "csharp",
+          "Service Interface",
+          "Platform Abstraction / Adapter"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IPlatformService"
+          },
+          {
+            "label": "Shape",
+            "value": "enum"
+          },
+          {
+            "label": "Fields",
+            "value": "3"
+          },
+          {
+            "label": "Unknown",
+            "value": "DisplayOrientation required"
+          },
+          {
+            "label": "Portrait",
+            "value": "DisplayOrientation required"
+          },
+          {
+            "label": "Landscape",
+            "value": "DisplayOrientation required"
+          },
+          {
+            "label": "Domain",
+            "value": "Device, Vibration, DisplayOrientation"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Abstractions/Services/IPlatformService.cs:28:1",
+            "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+            "line": 28,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "sourceLine": 28,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Application/Abstractions/Services/IPlatformService.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_getknowledgeinternalasync_guard_clause_83_83",
+        "label": "Guards early exit or rejection path",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (string.IsNullOrWhiteSpace(text)) return Result.Fail(\"Input text is empty.\");",
+        "responsibility": "if (string.IsNullOrWhiteSpace(text)) return Result.Fail(\"Input text is empty.\");",
+        "technologyHints": [
+          "csharp",
+          "Cache-Aside",
+          "Deduplicating concurrent requests (ConcurrentDictionary + Lazy<Task>)",
+          "Retry/Resilience (Polly ResiliencePipeline)",
+          "RAG (retrieval-augmented generation) with vector DB + graph expansion"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "KnowledgeService"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "string.IsNullOrWhiteSpace(text)) return Result.Fail(\"Input text is empty.\""
+          },
+          {
+            "label": "Outcomes",
+            "value": "exit, continue"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgeUnit, KnowledgeUnitLink, Knowledge graph expansion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/KnowledgeService.cs:83:1",
+            "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+            "line": 83,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "sourceLine": 83,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_helpers_contenthasher_cs_file_1",
+        "label": "ContentHasher",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Static utility class providing content normalization and hashing helpers.",
+        "responsibility": "Static utility class providing content normalization and hashing helpers.",
+        "technologyHints": [
+          "csharp",
+          "Utility",
+          "Hashing"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "ContentHasher"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "content normalization, deterministic hashing"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/ContentHasher.cs:1:1",
+            "path": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/ContentHasher.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_helpers_contenthasher_cs_computehash_9",
+        "label": "ComputeHash",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Normalizes input text, computes a SHA-256 hash of the UTF-8 bytes, and returns the lowercase hex string.",
+        "responsibility": "Normalizes input text, computes a SHA-256 hash of the UTF-8 bytes, and returns the lowercase hex string.",
+        "technologyHints": [
+          "csharp",
+          "Utility",
+          "Hashing"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "ContentHasher"
+          },
+          {
+            "label": "Signature",
+            "value": "(input: string) -> string"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L11"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Rejects empty/whitespace input @L11"
+          },
+          {
+            "label": "Action:return",
+            "value": "Returns result @L13"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Normalizes input before hashing @L16"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Encodes normalized input to UTF-8 bytes @L18"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Computes SHA-256 hash @L19"
+          },
+          {
+            "label": "Domain",
+            "value": "content normalization, deterministic hashing"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/ContentHasher.cs:9:1",
+            "path": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+            "line": 9,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+        "sourceLine": 9,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/ContentHasher.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_executeairequestandcacheasync_guard_clause_167_167",
+        "label": "Guards early exit or rejection path",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (string.IsNullOrWhiteSpace(rawResponse)) return Result.Fail(\"AI returned an empty response.\");",
+        "responsibility": "if (string.IsNullOrWhiteSpace(rawResponse)) return Result.Fail(\"AI returned an empty response.\");",
+        "technologyHints": [
+          "csharp",
+          "Cache-Aside",
+          "Deduplicating concurrent requests (ConcurrentDictionary + Lazy<Task>)",
+          "Retry/Resilience (Polly ResiliencePipeline)",
+          "RAG (retrieval-augmented generation) with vector DB + graph expansion"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "KnowledgeService"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "string.IsNullOrWhiteSpace(rawResponse)) return Result.Fail(\"AI returned an empty response.\""
+          },
+          {
+            "label": "Outcomes",
+            "value": "exit, continue"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgeUnit, KnowledgeUnitLink, Knowledge graph expansion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/KnowledgeService.cs:167:1",
+            "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+            "line": 167,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "sourceLine": 167,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_file_1",
+        "label": "JsonRepairHelper",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Static helper class encapsulating JSON repair utility logic used by infrastructure code.",
+        "responsibility": "Static helper class encapsulating JSON repair utility logic used by infrastructure code.",
+        "technologyHints": [
+          "csharp",
+          "Helper",
+          "Stack-based balancing algorithm",
+          "Defensive input sanitization"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "JsonRepairHelper"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "0"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs:1:1",
+            "path": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_repair_8",
+        "label": "Repair",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Detects truncated/garbled JSON, prunes trailing garbage, and auto-closes open strings/brackets/braces to return a best-effort valid JSON string.",
+        "responsibility": "Detects truncated/garbled JSON, prunes trailing garbage, and auto-closes open strings/brackets/braces to return a best-effort valid JSON string.",
+        "technologyHints": [
+          "csharp",
+          "Helper",
+          "Stack-based balancing algorithm",
+          "Defensive input sanitization"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "JsonRepairHelper"
+          },
+          {
+            "label": "Signature",
+            "value": "(json: string) -> string"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Guards early exit or rejection path @L10"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Rejects empty input @L10"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Trim input @L11"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Check for definite truncation @L14"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Find last likely clean delimiter @L18"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs:8:1",
+            "path": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+            "line": 8,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+        "sourceLine": 8,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_services_knowledgeservice_cs_askquestionasync_repository_read_717_717",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "3. For every statement or claim you make in your answer, you must cite the specific source IDs (e.g., source chunk ID or hash) from the context.",
+        "responsibility": "3. For every statement or claim you make in your answer, you must cite the specific source IDs (e.g., source chunk ID or hash) from the context.",
+        "technologyHints": [
+          "csharp",
+          "Cache-Aside",
+          "Deduplicating concurrent requests (ConcurrentDictionary + Lazy<Task>)",
+          "Retry/Resilience (Polly ResiliencePipeline)",
+          "RAG (retrieval-augmented generation) with vector DB + graph expansion"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "KnowledgeService"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgeUnit, KnowledgeUnitLink, Knowledge graph expansion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/KnowledgeService.cs:717:1",
+            "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+            "line": 717,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "sourceLine": 717,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_helpers_contenthasher_cs_computehash_branch_11_11",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (string.IsNullOrWhiteSpace(input))",
+        "responsibility": "if (string.IsNullOrWhiteSpace(input))",
+        "technologyHints": [
+          "csharp",
+          "Utility",
+          "Hashing"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "ContentHasher"
+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "string.IsNullOrWhiteSpace(input)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "content normalization, deterministic hashing"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/ContentHasher.cs:11:1",
+            "path": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+            "line": 11,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+        "sourceLine": 11,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/ContentHasher.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_helpers_jsonrepairhelper_cs_repair_guard_clause_10_10",
+        "label": "Guards early exit or rejection path",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (string.IsNullOrWhiteSpace(json)) return json;",
+        "responsibility": "if (string.IsNullOrWhiteSpace(json)) return json;",
+        "technologyHints": [
+          "csharp",
+          "Helper",
+          "Stack-based balancing algorithm",
+          "Defensive input sanitization"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "JsonRepairHelper"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "string.IsNullOrWhiteSpace(json)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "exit, continue"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs:10:1",
+            "path": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+            "line": 10,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+        "sourceLine": 10,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_realtime_synchub_cs_file_1",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "responsibility": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(mediator: IMediator) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Depends on IMediator @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores mediator @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_mediator",
+            "value": "IMediator required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:1:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_19",
+        "label": "UpdateProgress",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+        "responsibility": "Receives client progress updates, obtains the calling user id and forwards an UpdateReadingProgressCommand via MediatR when user is present.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(pageId: string, ebookId: Guid, progress: double, chapterTitle: string? , chapterIndex: int) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L21"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads user id from connection context @L21"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Requires authenticated user id @L21"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L22"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Dispatches command to application layer @L24"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Includes connection id in command @L24"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:19:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 19,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 19,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_updateprogress_repository_read_21_21",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+        "responsibility": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:21:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 21,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 21,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_28",
+        "label": "OnConnectedAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "When a client connects, adds their connection to a per-user SignalR group (User_{userId}) and calls base connection logic.",
+        "responsibility": "When a client connects, adds their connection to a per-user SignalR group (User_{userId}) and calls base connection logic.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "() -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads Context.UserIdentifier @L30"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L30"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L31"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Only add to group if userId present @L31"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Adds connection to per-user group @L33"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L33"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:28:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 28,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 28,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_onconnectedasync_repository_read_30_30",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "var userId = Context.UserIdentifier;",
+        "responsibility": "var userId = Context.UserIdentifier;",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:30:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 30,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 30,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_38",
+        "label": "OnDisconnectedAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "When a client disconnects, removes their connection from the per-user SignalR group and invokes base disconnect logic.",
+        "responsibility": "When a client disconnects, removes their connection from the per-user SignalR group and invokes base disconnect logic.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(exception: Exception?) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Reads Context.UserIdentifier @L40"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L40"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L41"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Only remove from group if userId present @L41"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L43"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Removes connection from per-user group @L43"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:38:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 38,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 38,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_synchub_cs_ondisconnectedasync_repository_read_40_40",
+        "label": "Reads repository or persistence state",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "var userId = Context.UserIdentifier;",
+        "responsibility": "var userId = Context.UserIdentifier;",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:40:1",
+            "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_237_237",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!app.Environment.IsDevelopment())",
+        "responsibility": "if (!app.Environment.IsDevelopment())",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!app.Environment.IsDevelopment()"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:237:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 237,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 237,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14",
+        "label": "SyncHub",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "responsibility": "SignalR hub that mediates client realtime interactions for syncing reading progress and manages user groups.",
+        "technologyHints": [
+          "csharp",
+          "Mediator",
+          "SignalR Hub",
+          "Per-user group (User_{userId})"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncHub"
+          },
+          {
+            "label": "Signature",
+            "value": "(mediator: IMediator) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Depends on IMediator @L14"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores mediator @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_mediator",
+            "value": "IMediator required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, User, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SyncHub.cs:14:1",
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+      },
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+        "id": "flow_file_nexusreader_application_commands_ai_verifygroundednesscommand_cs_file_1",
+        "label": "VerifyGroundednessCommandHandler",
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+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Constructs the handler and stores the required IKnowledgeService dependency for later calls.",
+        "responsibility": "Constructs the handler and stores the required IKnowledgeService dependency for later calls.",
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+          "csharp",
+          "Mediator (MediatR) handler",
+          "Dependency Injection"
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+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "VerifyGroundednessCommandHandler"
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+          {
+            "label": "Signature",
+            "value": "(knowledgeService: IKnowledgeService) -> VerifyGroundednessCommandHandler"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Receives IKnowledgeService via constructor @L13"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Assigns injected service to private field @L15"
+          },
+          {
+            "label": "Domain",
+            "value": "Groundedness, AI verification, KnowledgeService"
+          }
+        ],
+        "navigationTargets": [
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+        "label": "VerifyGroundednessCommand",
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+          "Dependency Injection"
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+            "label": "Owner",
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+            "label": "Context",
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+          {
+            "label": "TenantId",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
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+        "diagramId": "dependency_map_graph",
+        "nodeRole": "object",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Represents the input payload to ingest a new ebook (title, author, cover bytes, EPUB bytes, description, owner and tenant) for processing by an application command handler.",
+        "responsibility": "Represents the input payload to ingest a new ebook (title, author, cover bytes, EPUB bytes, description, owner and tenant) for processing by an application command handler.",
+        "technologyHints": [
+          "csharp",
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+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IngestEbookCommand"
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+          {
+            "label": "Shape",
+            "value": "command"
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+          {
+            "label": "Fields",
+            "value": "7"
+          },
+          {
+            "label": "Title",
+            "value": "string required"
+          },
+          {
+            "label": "AuthorName",
+            "value": "string required"
+          },
+          {
+            "label": "CoverImage",
+            "value": "byte[]?"
+          },
+          {
+            "label": "EpubData",
+            "value": "byte[] required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Library, Tenant"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Library/IngestEbookCommand.cs:1:1",
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+            "tooltip": "Open source"
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+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+        "sourceLine": 1,
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+        "evidencePaths": [
+          "NexusReader.Application/Commands/Library/IngestEbookCommand.cs"
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+      },
+      {
+        "id": "flow_type_nexusreader_application_commands_library_ingestebookcommand_cs_ingestebookcommand_15",
+        "label": "IngestEbookCommand",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "object",
+        "diagramFamily": "dependency-map",
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+        "summary": "Represents the input payload to ingest a new ebook (title, author, cover bytes, EPUB bytes, description, owner and tenant) for processing by an application command handler.",
+        "responsibility": "Represents the input payload to ingest a new ebook (title, author, cover bytes, EPUB bytes, description, owner and tenant) for processing by an application command handler.",
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+          "csharp",
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+        "detailItems": [
+          {
+            "label": "Owner",
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+            "label": "Shape",
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+            "label": "Fields",
+            "value": "7"
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+          {
+            "label": "Title",
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+          },
+          {
+            "label": "AuthorName",
+            "value": "string required"
+          },
+          {
+            "label": "CoverImage",
+            "value": "byte[]?"
+          },
+          {
+            "label": "EpubData",
+            "value": "byte[] required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Library, Tenant"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+        "confidence": "high",
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+        "evidencePaths": [
+          "NexusReader.Application/Commands/Library/IngestEbookCommand.cs"
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+        "id": "flow_file_nexusreader_application_commands_library_ingestebookcommandhandler_cs_file_1",
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+        "responsibility": "Constructor that receives and stores repository and storage service dependencies.",
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+          "csharp",
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+          "Repository",
+          "Unit of Work (SaveChangesAsync)"
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+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "IngestEbookCommandHandler"
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+          {
+            "label": "Signature",
+            "value": "(ebookRepository: IEbookRepository, storageService: IBookStorageService) -> IngestEbookCommandHandler"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Assign injected dependencies to fields @L19"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Author, TenantId/UserId (multitenancy/audit metadata)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Library/IngestEbookCommandHandler.cs",
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+        "evidencePaths": [
+          "NexusReader.Application/Commands/Library/IngestEbookCommandHandler.cs"
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+      },
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+        "id": "flow_file_nexusreader_application_commands_library_ingestebookrequest_cs_file_1",
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+        "diagramId": "dependency_map_graph",
+        "nodeRole": "object",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Represents the data required to ingest an ebook: metadata, optional cover image, and the EPUB payload (base64).",
+        "responsibility": "Represents the data required to ingest an ebook: metadata, optional cover image, and the EPUB payload (base64).",
+        "technologyHints": [
+          "csharp",
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+        "detailItems": [
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+            "label": "Owner",
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+            "label": "Shape",
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+          },
+          {
+            "label": "Title",
+            "value": "string required"
+          },
+          {
+            "label": "AuthorName",
+            "value": "string required"
+          },
+          {
+            "label": "CoverImageBase64",
+            "value": "string?"
+          },
+          {
+            "label": "EpubDataBase64",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
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+        "navigationTargets": [
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+        "diagramFamily": "dependency-map",
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+        "summary": "Represents the data required to ingest an ebook: metadata, optional cover image, and the EPUB payload (base64).",
+        "responsibility": "Represents the data required to ingest an ebook: metadata, optional cover image, and the EPUB payload (base64).",
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+          "csharp",
+          "Command DTO"
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+        "detailItems": [
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+            "label": "Owner",
+            "value": "IngestEbookRequest"
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+            "label": "Title",
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+          {
+            "label": "AuthorName",
+            "value": "string required"
+          },
+          {
+            "label": "CoverImageBase64",
+            "value": "string?"
+          },
+          {
+            "label": "EpubDataBase64",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Library, Author"
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+        ],
+        "navigationTargets": [
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+            "key": "source",
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+      },
+      {
+        "id": "flow_file_nexusreader_application_commands_quiz_submitanswercommand_cs_file_1",
+        "label": "SubmitAnswerCommand",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "object",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Represents a request to submit an answer for a quiz question carrying the selected and correct indices.",
+        "responsibility": "Represents a request to submit an answer for a quiz question carrying the selected and correct indices.",
+        "technologyHints": [
+          "csharp",
+          "CQRS",
+          "Command"
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+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SubmitAnswerCommand"
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+          {
+            "label": "Shape",
+            "value": "command"
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+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "SelectedIndex",
+            "value": "int required"
+          },
+          {
+            "label": "CorrectIndex",
+            "value": "int required"
+          },
+          {
+            "label": "Domain",
+            "value": "Quiz, Answer"
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+        "navigationTargets": [
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+            "key": "source",
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+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs",
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+      },
+      {
+        "id": "flow_type_nexusreader_application_commands_quiz_submitanswercommand_cs_submitanswercommand_5",
+        "label": "SubmitAnswerCommand",
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+        "nodeRole": "object",
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+        "architecturalLayer": "backend",
+        "summary": "Represents a request to submit an answer for a quiz question carrying the selected and correct indices.",
+        "responsibility": "Represents a request to submit an answer for a quiz question carrying the selected and correct indices.",
+        "technologyHints": [
+          "csharp",
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+        "detailItems": [
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+            "label": "Owner",
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+          {
+            "label": "Fields",
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+          {
+            "label": "SelectedIndex",
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+          {
+            "label": "CorrectIndex",
+            "value": "int required"
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+          {
+            "label": "Domain",
+            "value": "Quiz, Answer"
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+        "navigationTargets": [
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+            "key": "source",
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+      },
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+        "responsibility": "Carries an AI-generated answer and a list of provenance citations back to callers.",
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+          "csharp",
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+            "label": "Shape",
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+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Answer",
+            "value": "string required"
+          },
+          {
+            "label": "Citations",
+            "value": "List<CitationDto> required"
+          },
+          {
+            "label": "Domain",
+            "value": "GroundedResponse, Citation, AI/Knowledge"
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+        ],
+        "navigationTargets": [
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+        "confidence": "high",
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+        "evidencePaths": [
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+      },
+      {
+        "id": "flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_groundedresponsedto_5",
+        "label": "GroundedResponseDto",
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+        "summary": "Carries an AI-generated answer and a list of provenance citations back to callers.",
+        "responsibility": "Carries an AI-generated answer and a list of provenance citations back to callers.",
+        "technologyHints": [
+          "csharp",
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+        "detailItems": [
+          {
+            "label": "Owner",
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+            "label": "Shape",
+            "value": "dto"
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+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Answer",
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+          },
+          {
+            "label": "Citations",
+            "value": "List<CitationDto> required"
+          },
+          {
+            "label": "Domain",
+            "value": "GroundedResponse, Citation, AI/Knowledge"
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+        ],
+        "navigationTargets": [
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+            "key": "source",
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+      },
+      {
+        "id": "flow_type_nexusreader_application_dtos_ai_groundedresponsedto_cs_citationdto_11",
+        "label": "CitationDto",
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+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Represents a single provenance item (chunk id, snippet, and source) used to justify the answer.",
+        "responsibility": "Represents a single provenance item (chunk id, snippet, and source) used to justify the answer.",
+        "technologyHints": [
+          "csharp",
+          "DTO"
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+        "detailItems": [
+          {
+            "label": "Owner",
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+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "3"
+          },
+          {
+            "label": "CitationId",
+            "value": "string required"
+          },
+          {
+            "label": "Snippet",
+            "value": "string required"
+          },
+          {
+            "label": "SourceBook",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "GroundedResponse, Citation, AI/Knowledge"
+          }
+        ],
+        "navigationTargets": [
+          {
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+        "label": "SemanticSearchResultDto",
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+        "responsibility": "Carries the result of a semantic search (content identifier, snippet, unit type, relevance and optional source/metadata) across application boundaries.",
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+          "csharp",
+          "DTO"
+        ],
+        "detailItems": [
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+          {
+            "label": "Fields",
+            "value": "6"
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+          {
+            "label": "ContentHash",
+            "value": "string required"
+          },
+          {
+            "label": "Snippet",
+            "value": "string required"
+          },
+          {
+            "label": "UnitType",
+            "value": "string?"
+          },
+          {
+            "label": "RelevanceScore",
+            "value": "float required"
+          },
+          {
+            "label": "Domain",
+            "value": "Semantic Search, Search Result, Knowledge Retrieval"
+          }
+        ],
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+            "label": "Fields",
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+            "label": "ContentHash",
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+          {
+            "label": "Snippet",
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+          {
+            "label": "UnitType",
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+          },
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+            "label": "RelevanceScore",
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+          {
+            "label": "Domain",
+            "value": "Semantic Search, Search Result, Knowledge Retrieval"
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+        "id": "flow_file_nexusreader_infrastructure_services_epubreaderservice_cs_file_1",
+        "label": "EpubReaderService",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "service",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Service that locates EPUB files recorded in the database, parses a requested chapter, splits the chapter into sanitized content blocks, injects AI-action trigger blocks at thresholds, and returns a ReaderPageViewModel for consumption by the application.",
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+          {
+            "label": "Owner",
+            "value": "EpubReaderService"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Chapter/ReadingOrder, ContentBlock (TextSegmentBlock, AiActionTriggerBlock)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/EpubReaderService.cs:1:1",
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+            "line": 1,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
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+        "sourceLine": 1,
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+          "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_services_bookstorageservice_cs_file_1",
+        "label": "BookStorageService",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "class",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Concrete infrastructure implementation of IBookStorageService that persists ebook and cover bytes to filesystem under the web root.",
+        "responsibility": "Concrete infrastructure implementation of IBookStorageService that persists ebook and cover bytes to filesystem under the web root.",
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+          "csharp",
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+          "Filesystem Persistence",
+          "Wrapper Overload Delegation"
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+            "label": "Owner",
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+          {
+            "label": "Signature",
+            "value": "(environment: IWebHostEnvironment) -> BookStorageService"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores IWebHostEnvironment @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_environment",
+            "value": "IWebHostEnvironment required"
+          },
+          {
+            "label": "Domain",
+            "value": "Book (ebook file), Cover (cover image), Web-root relative static asset paths (uploads, covers)"
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+        ],
+        "navigationTargets": [
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+            "key": "source",
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+        ]
+      },
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+        "id": "flow_method_nexusreader_infrastructure_services_epubreaderservice_cs_countwords_175",
+        "label": "CountWords",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Count words in a string using whitespace separators; returns 0 for null/whitespace.",
+        "responsibility": "Count words in a string using whitespace separators; returns 0 for null/whitespace.",
+        "technologyHints": [
+          "csharp",
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+        "detailItems": [
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+            "label": "Owner",
+            "value": "EpubReaderService"
+          },
+          {
+            "label": "Signature",
+            "value": "(text: string) -> int"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Empty text check @L177"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Guards early exit or rejection path @L177"
+          },
+          {
+            "label": "Action:return",
+            "value": "Returns result @L178"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Split and count words @L178"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Chapter/ReadingOrder, ContentBlock (TextSegmentBlock, AiActionTriggerBlock)"
+          }
+        ],
+        "navigationTargets": [
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+            "key": "source",
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+        "responsibility": "Important behaviors: DB lookup with user guard, file path resolution that handles dev/prod layouts, EPUB parsing via external library, paragraph extraction and HTML sanitization, word-count-based insertion of AI trigger blocks (WordThreshold = 1000), recursive navigation-title lookup, and robust error logging with Result-based failure propagation.",
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+          {
+            "label": "Condition",
+            "value": "string.IsNullOrWhiteSpace(text)"
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+            "label": "Outcomes",
+            "value": "return 0, continue"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook, Chapter/ReadingOrder, ContentBlock (TextSegmentBlock, AiActionTriggerBlock)"
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+        ],
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+            "key": "source",
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+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_services_bookstorageservice_cs_ensuredirectoryexists_66",
+        "label": "EnsureDirectoryExists",
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+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
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+        "responsibility": "Checks for directory existence and creates it if missing.",
+        "technologyHints": [
+          "csharp",
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+          "Filesystem Persistence",
+          "Wrapper Overload Delegation"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
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+          },
+          {
+            "label": "Signature",
+            "value": "(path: string) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Check directory existence @L68"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L68"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Create directory @L70"
+          },
+          {
+            "label": "Domain",
+            "value": "Book (ebook file), Cover (cover image), Web-root relative static asset paths (uploads, covers)"
+          }
+        ],
+        "navigationTargets": [
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+            "key": "source",
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+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_services_bookstorageservice_cs_ensuredirectoryexists_guard_clause_68_68",
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+        "nodeRole": "step",
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+        "summary": "if (!Directory.Exists(path)) { Directory.CreateDirectory(path); }",
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+            "label": "Action",
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+            "label": "Condition",
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+            "label": "Outcomes",
+            "value": "create-directory, noop"
+          },
+          {
+            "label": "Domain",
+            "value": "Book (ebook file), Cover (cover image), Web-root relative static asset paths (uploads, covers)"
+          }
+        ],
+        "navigationTargets": [
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+            "key": "source",
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+            "tooltip": "Open source"
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+      },
+      {
+        "id": "flow_file_nexusreader_application_security_authorization_prouserhandler_cs_file_1",
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+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Authorization handler class that enforces Pro user rules using DB-backed state.",
+        "responsibility": "Authorization handler class that enforces Pro user rules using DB-backed state.",
+        "technologyHints": [
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+          "DB-backed authorization"
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+        "detailItems": [
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+            "label": "Owner",
+            "value": "ProUserHandler"
+          },
+          {
+            "label": "Signature",
+            "value": "(dbContextFactory: IDbContextFactory<AppDbContext>) -> void"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
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+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_dbContextFactory",
+            "value": "IDbContextFactory<AppDbContext> required"
+          },
+          {
+            "label": "Domain",
+            "value": "User, SubscriptionPlan, AI tokens (AITokensUsed, AITokenLimit)"
+          }
+        ],
+        "navigationTargets": [
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+            "key": "source",
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+            "label": "Owner",
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+            "label": "Signature",
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+          {
+            "label": "Calls",
+            "value": "0"
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+            "label": "Shape",
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+            "label": "Fields",
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+          {
+            "label": "_dbContextFactory",
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+          },
+          {
+            "label": "Domain",
+            "value": "User, SubscriptionPlan, AI tokens (AITokensUsed, AITokenLimit)"
+          }
+        ],
+        "navigationTargets": [
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+            "key": "source",
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+        ],
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+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_identity_tokenlimitrequirement_cs_file_1",
+        "label": "TokenLimitRequirement",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Marker authorization requirement indicating a check for a user's AI token usage/limit.",
+        "responsibility": "Marker authorization requirement indicating a check for a user's AI token usage/limit.",
+        "technologyHints": [
+          "csharp",
+          "Policy-based Authorization",
+          "Marker Requirement"
+        ],
+        "detailItems": [
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+            "label": "Owner",
+            "value": "TokenLimitRequirement"
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+          {
+            "label": "Shape",
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+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "AI token limit, Authorization/Policy"
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+        ],
+        "navigationTargets": [
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+            "key": "source",
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+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
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+        "sourceTargetKind": "dependency",
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+          "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_infrastructure_identity_tokenlimitrequirement_cs_tokenlimitrequirement_8",
+        "label": "TokenLimitRequirement",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Marker authorization requirement indicating a check for a user's AI token usage/limit.",
+        "responsibility": "Marker authorization requirement indicating a check for a user's AI token usage/limit.",
+        "technologyHints": [
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+            "label": "Owner",
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+          {
+            "label": "Shape",
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+          {
+            "label": "Fields",
+            "value": "0"
+          },
+          {
+            "label": "Domain",
+            "value": "AI token limit, Authorization/Policy"
+          }
+        ],
+        "navigationTargets": [
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+            "label": "Shape",
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+            "label": "Calls",
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+          {
+            "label": "Action:mapping",
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+          {
+            "label": "Domain",
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+          },
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+            "label": "Action:guard-clause",
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+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L24"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L25"
+          },
+          {
+            "label": "Action:return",
+            "value": "Returns result @L27"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Load user with subscription @L30"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L35"
+          },
+          {
+            "label": "Domain",
+            "value": "User, SubscriptionPlan, AI tokens (AITokensUsed, AITokenLimit)"
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+            "label": "Domain",
+            "value": "User, SubscriptionPlan, AI tokens (AITokensUsed, AITokenLimit)"
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+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "var userId = context.User.FindFirstValue(ClaimTypes.NameIdentifier);",
+        "responsibility": "var userId = context.User.FindFirstValue(ClaimTypes.NameIdentifier);",
+        "technologyHints": [
+          "csharp",
+          "Authorization Handler",
+          "DB-backed authorization"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "ProUserHandler"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "User, SubscriptionPlan, AI tokens (AITokensUsed, AITokenLimit)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:24:1",
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+            "tooltip": "Open source"
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+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_25_25",
+        "label": "Evaluates branch condition",
+        "diagramId": "primary_runtime_flow_0_nexusreader_application_security_authorization_prouserhandler_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "if (string.IsNullOrEmpty(userId))",
+        "responsibility": "if (string.IsNullOrEmpty(userId))",
+        "technologyHints": [
+          "csharp",
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+          "DB-backed authorization"
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+          {
+            "label": "Owner",
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+          },
+          {
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+          },
+          {
+            "label": "Condition",
+            "value": "string.IsNullOrEmpty(userId)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "User, SubscriptionPlan, AI tokens (AITokensUsed, AITokenLimit)"
+          }
+        ],
+        "navigationTargets": [
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+            "key": "source",
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+            "line": 25,
+            "tooltip": "Open source"
+          }
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+        "confidence": "high",
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+      },
+      {
+        "id": "flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_return_27_27",
+        "label": "Returns result",
+        "diagramId": "primary_runtime_flow_0_nexusreader_application_security_authorization_prouserhandler_cs",
+        "nodeRole": "return",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "return;",
+        "responsibility": "return;",
+        "technologyHints": [
+          "csharp",
+          "Authorization Handler",
+          "DB-backed authorization"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
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+          },
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+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Domain",
+            "value": "User, SubscriptionPlan, AI tokens (AITokensUsed, AITokenLimit)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Security/Authorization/ProUserHandler.cs:27:1",
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+            "tooltip": "Open source"
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+      },
+      {
+        "id": "flow_action_nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_branch_35_35",
+        "label": "Evaluates branch condition",
+        "diagramId": "control_flow_flow_0_nexusreader_application_security_authorization_prouserhandler_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (user == null)",
+        "responsibility": "if (user == null)",
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+          "csharp",
+          "Authorization Handler",
+          "DB-backed authorization"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
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+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "user == null"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "User, SubscriptionPlan, AI tokens (AITokensUsed, AITokenLimit)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+            "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+            "line": 35,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
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+        "sourceLine": 35,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_112",
+        "label": "CloneHttpRequestMessageAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Creates a deep-ish clone of an HttpRequestMessage including method, URI, version, headers and buffered content to allow safe retry.",
+        "responsibility": "Creates a deep-ish clone of an HttpRequestMessage including method, URI, version, headers and buffered content to allow safe retry.",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Signature",
+            "value": "(HttpRequestMessage req) -> Task<HttpRequestMessage>"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Create new HttpRequestMessage clone @L114"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Copy request content stream and headers @L119"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L119"
+          },
+          {
+            "label": "Action:loop",
+            "value": "Repeats work over a collection or condition @L126"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Copy request headers @L132"
+          },
+          {
+            "label": "Action:loop",
+            "value": "Repeats work over a collection or condition @L132"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:112:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 112,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 112,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_client_handlers_authenticationheaderhandler_cs_clonehttprequestmessageasync_branch_119_119",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (req.Content != null)",
+        "responsibility": "if (req.Content != null)",
+        "technologyHints": [
+          "csharp",
+          "DelegatingHandler",
+          "Token auto-refresh",
+          "Semaphore-based concurrency guard",
+          "Scoped service resolution for transient operations"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AuthenticationHeaderHandler"
+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "req.Content != null"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, JWT, Token refresh"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs:119:1",
+            "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "line": 119,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "sourceLine": 119,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_31",
+        "label": "GetAuthenticationStateAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Asynchronously resolves the current AuthenticationState by returning a cached state or reconstructing it from persisted token/email/tenant/roles with multiple fallbacks and exception handling.",
+        "responsibility": "Asynchronously resolves the current AuthenticationState by returning a cached state or reconstructing it from persisted token/email/tenant/roles with multiple fallbacks and exception handling.",
+        "technologyHints": [
+          "csharp",
+          "AuthenticationStateProvider",
+          "Client-side caching",
+          "Storage-backed authentication"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "NexusAuthenticationStateProvider"
+          },
+          {
+            "label": "Signature",
+            "value": "() -> Task<AuthenticationState>"
+          },
+          {
+            "label": "Calls",
+            "value": "9"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Protect state resolution @L33"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Guards early exit or rejection path @L35"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Return cached state if present @L35"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L41"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Token-based auth path @L41"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L47"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, User Roles, Tenant"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs:31:1",
+            "path": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+            "line": 31,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
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+        "sourceTargetKind": "method",
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+          "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_guard_clause_35_35",
+        "label": "Guards early exit or rejection path",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (_cachedState != null) return _cachedState;",
+        "responsibility": "if (_cachedState != null) return _cachedState;",
+        "technologyHints": [
+          "csharp",
+          "AuthenticationStateProvider",
+          "Client-side caching",
+          "Storage-backed authentication"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "NexusAuthenticationStateProvider"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "_cachedState != null"
+          },
+          {
+            "label": "Outcomes",
+            "value": "exit, continue"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, User Roles, Tenant"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs:35:1",
+            "path": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+            "line": 35,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "sourceLine": 35,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_createstate_84",
+        "label": "CreateState",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Constructs an AuthenticationState/ClaimsPrincipal from provided identity attributes and a comma-separated roles string.",
+        "responsibility": "Constructs an AuthenticationState/ClaimsPrincipal from provided identity attributes and a comma-separated roles string.",
+        "technologyHints": [
+          "csharp",
+          "AuthenticationStateProvider",
+          "Client-side caching",
+          "Storage-backed authentication"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "NexusAuthenticationStateProvider"
+          },
+          {
+            "label": "Signature",
+            "value": "(string email, string tenantId, string authType, string rolesStr = \"\") -> AuthenticationState"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Build base claims @L86"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L93"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Only parse roles if provided @L93"
+          },
+          {
+            "label": "Action:loop",
+            "value": "Parse and add role claims @L95"
+          },
+          {
+            "label": "Action:loop",
+            "value": "Repeats work over a collection or condition @L96"
+          },
+          {
+            "label": "Action:return",
+            "value": "Return AuthenticationState with created identity @L103"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, User Roles, Tenant"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs:84:1",
+            "path": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+            "line": 84,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "sourceLine": 84,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
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+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_createstate_branch_93_93",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(rolesStr))",
+        "responsibility": "if (!string.IsNullOrEmpty(rolesStr))",
+        "technologyHints": [
+          "csharp",
+          "AuthenticationStateProvider",
+          "Client-side caching",
+          "Storage-backed authentication"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
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+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(rolesStr)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "Authentication, User Roles, Tenant"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs:93:1",
+            "path": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+            "line": 93,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "sourceLine": 93,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_services_serveridentityservice_cs_loginasync_39",
+        "label": "LoginAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Validates credentials against ASP.NET Identity, enforces lockout and failed-access counting, and returns success/failure without performing cookie sign-in (Blazor Server constraint).",
+        "responsibility": "Validates credentials against ASP.NET Identity, enforces lockout and failed-access counting, and returns success/failure without performing cookie sign-in (Blazor Server constraint).",
+        "technologyHints": [
+          "csharp",
+          "Identity Adapter",
+          "Facade",
+          "Mediator (consumes query)"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "ServerIdentityService"
+          },
+          {
+            "label": "Signature",
+            "value": "(email: string, password: string, rememberMe: bool = false) -> Task<Result>"
+          },
+          {
+            "label": "Calls",
+            "value": "5"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Exception handling @L41"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Missing user @L43"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L43"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Guards early exit or rejection path @L44"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Account locked @L47"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Guards early exit or rejection path @L47"
+          },
+          {
+            "label": "Domain",
+            "value": "User, SubscriptionPlan, Tenant"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Services/ServerIdentityService.cs:39:1",
+            "path": "NexusReader.Web/Services/ServerIdentityService.cs",
+            "line": 39,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Services/ServerIdentityService.cs",
+        "sourceLine": 39,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Services/ServerIdentityService.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_services_serveridentityservice_cs_loginasync_guard_clause_43_43",
+        "label": "Missing user",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Return Result.Fail when FindByEmailAsync returns null",
+        "responsibility": "Return Result.Fail when FindByEmailAsync returns null",
+        "technologyHints": [
+          "csharp",
+          "Identity Adapter",
+          "Facade",
+          "Mediator (consumes query)"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "ServerIdentityService"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "user == null"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fail, continue"
+          },
+          {
+            "label": "Domain",
+            "value": "User, SubscriptionPlan, Tenant"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Services/ServerIdentityService.cs:43:1",
+            "path": "NexusReader.Web/Services/ServerIdentityService.cs",
+            "line": 43,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
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+          "csharp",
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+          "Facade",
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+          {
+            "label": "Owner",
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+            "label": "Signature",
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+            "label": "Calls",
+            "value": "5"
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+          {
+            "label": "Action:guard-clause",
+            "value": "No HttpContext or not authenticated @L110"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Guards early exit or rejection path @L111"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Missing user id claim @L113"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L113"
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+          {
+            "label": "Action:guard-clause",
+            "value": "Guards early exit or rejection path @L114"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Mediator query result handling @L116"
+          },
+          {
+            "label": "Domain",
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+        "id": "flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_110_110",
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+            "label": "Domain",
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+        "sourceTargetKind": "step",
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+      },
+      {
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+        "label": "WasmEpubReader",
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+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Constructs the WASM EPUB reader and stores an HttpClient instance for remote chapter retrieval.",
+        "responsibility": "Constructs the WASM EPUB reader and stores an HttpClient instance for remote chapter retrieval.",
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+          "csharp",
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+          "Extractor"
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+        "detailItems": [
+          {
+            "label": "Owner",
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+          {
+            "label": "Signature",
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+          {
+            "label": "Calls",
+            "value": "0"
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+          {
+            "label": "Action:mapping",
+            "value": "Store HttpClient @L14"
+          },
+          {
+            "label": "Domain",
+            "value": "Epub, ReaderPage, LocalEpubMetadata"
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+        ],
+        "navigationTargets": [
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+            "key": "source",
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+            "line": 1,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
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+      },
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+        "id": "flow_file_nexusreader_web_client_services_wasmknowledgeservice_cs_file_1",
+        "label": "WasmKnowledgeService",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "dependency",
+        "diagramFamily": "dependency-map",
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+          "csharp",
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+          {
+            "label": "Owner",
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+            "label": "Domain",
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+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
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+      },
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+        "id": "flow_file_nexusreader_web_client_services_webplatformservice_cs_file_1",
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+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
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+        "summary": "Concrete platform service for the web client that implements IPlatformService using JS interop.",
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+        "detailItems": [
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+            "label": "Owner",
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+          {
+            "label": "Shape",
+            "value": "model"
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+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_jsRuntime",
+            "value": "IJSRuntime required"
+          },
+          {
+            "label": "Domain",
+            "value": "DeviceContext, DeviceType, DisplayOrientation"
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+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web.Client/Services/WebPlatformService.cs:1:1",
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+            "line": 1,
+            "tooltip": "Open source"
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+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web.Client/Services/WebPlatformService.cs"
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+      },
+      {
+        "id": "flow_type_nexusreader_web_client_services_webplatformservice_cs_webplatformservice_7",
+        "label": "WebPlatformService",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "class",
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+        "summary": "Concrete platform service for the web client that implements IPlatformService using JS interop.",
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+          "csharp",
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+        "detailItems": [
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+            "label": "Owner",
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+          {
+            "label": "Shape",
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+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_jsRuntime",
+            "value": "IJSRuntime required"
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+          {
+            "label": "Domain",
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+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+        ],
+        "confidence": "high",
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+      },
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+        "summary": "Static host for MAUI app startup logic and DI composition.",
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+          "csharp",
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+          "Composition Root",
+          "Service Registration"
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+        "detailItems": [
+          {
+            "label": "Owner",
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+            "label": "Shape",
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+          {
+            "label": "Fields",
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+          {
+            "label": "Domain",
+            "value": "Identity (AuthenticationStateProvider), Sync, KnowledgeGraph / KnowledgeCoordinator"
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+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
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+        ],
+        "confidence": "high",
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+      },
+      {
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+        "summary": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging.",
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+        "technologyHints": [
+          "csharp",
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+          "Composition Root",
+          "Service Registration"
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+        "detailItems": [
+          {
+            "label": "Owner",
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+          {
+            "label": "Domain",
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+        ],
+        "navigationTargets": [
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+            "key": "source",
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+        ],
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+      },
+      {
+        "id": "flow_type_nexusreader_maui_mauiprogram_cs_mauistorageservice_29",
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+        "architecturalLayer": "backend",
+        "summary": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging.",
+        "responsibility": "Sets HttpClient BaseAddress to http://10.0.2.2:5000 (typical Android emulator -> host routing); composes Application layer via AddApplication() and registers MediatR scanning the Application assembly; startup protected by try/catch that writes Debug output and rethrows.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
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+          },
+          {
+            "label": "Domain",
+            "value": "Identity (AuthenticationStateProvider), Sync, KnowledgeGraph / KnowledgeCoordinator"
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+        ],
+        "navigationTargets": [
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+            "key": "source",
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+        ],
+        "confidence": "high",
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+      },
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+        "id": "flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_32",
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+        "architecturalLayer": "backend",
+        "summary": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging.",
+        "responsibility": "Sets HttpClient BaseAddress to http://10.0.2.2:5000 (typical Android emulator -> host routing); composes Application layer via AddApplication() and registers MediatR scanning the Application assembly; startup protected by try/catch that writes Debug output and rethrows.",
+        "technologyHints": [
+          "csharp",
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+          "Composition Root",
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+        "detailItems": [
+          {
+            "label": "Owner",
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+            "label": "Domain",
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+        ],
+        "navigationTargets": [
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+            "key": "source",
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+        "id": "flow_type_nexusreader_maui_mauiprogram_cs_nexusauthenticationstateprovider_via_factory_33",
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+        "summary": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging.",
+        "responsibility": "Sets HttpClient BaseAddress to http://10.0.2.2:5000 (typical Android emulator -> host routing); composes Application layer via AddApplication() and registers MediatR scanning the Application assembly; startup protected by try/catch that writes Debug output and rethrows.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
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+        "detailItems": [
+          {
+            "label": "Owner",
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+          },
+          {
+            "label": "Domain",
+            "value": "Identity (AuthenticationStateProvider), Sync, KnowledgeGraph / KnowledgeCoordinator"
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+        ],
+        "navigationTargets": [
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+            "key": "source",
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+        "id": "flow_type_nexusreader_maui_mauiprogram_cs_httpclient_configured_38",
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+        "summary": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging.",
+        "responsibility": "Sets HttpClient BaseAddress to http://10.0.2.2:5000 (typical Android emulator -> host routing); composes Application layer via AddApplication() and registers MediatR scanning the Application assembly; startup protected by try/catch that writes Debug output and rethrows.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
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+        "detailItems": [
+          {
+            "label": "Owner",
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+            "label": "Domain",
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+        "navigationTargets": [
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+            "key": "source",
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+        "sourceTargetKind": "dependency",
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+      {
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+        "label": "ThemeService, FocusModeService, QuizStateService, ReaderNavigationService, KnowledgeGraphService, ReaderInteractionService, KnowledgeCoordinator, SyncService, IdentityService",
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+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging.",
+        "responsibility": "Sets HttpClient BaseAddress to http://10.0.2.2:5000 (typical Android emulator -> host routing); composes Application layer via AddApplication() and registers MediatR scanning the Application assembly; startup protected by try/catch that writes Debug output and rethrows.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Composition Root",
+          "Service Registration"
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+        "detailItems": [
+          {
+            "label": "Owner",
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+          },
+          {
+            "label": "Domain",
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+        ],
+        "navigationTargets": [
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+            "key": "source",
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+      },
+      {
+        "id": "flow_file_nexusreader_web_program_cs_file_1",
+        "label": "Program.cs",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "service",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host.",
+        "responsibility": "Program.cs is the composition root and runtime bootstrap: it registers DI services and policies, configures authentication (including Google), ensures DB migrations and seeding with retry/backoff, maps a set of Minimal API endpoints for knowledge features (protected by token-availability policy), handles Stripe webhooks to update subscription state, and supports both Server and WASM Blazor render modes.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:1:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_web_program_cs_program_top_level_29",
+        "label": "Program (top-level)",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "responsibility": "Top-level program: build host, register services and middleware, map routes/endpoints, run the app.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Signature",
+            "value": "(args) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "6"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Registers many scoped services and HTTP client @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L62"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L66"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Adds policies including 'ProUser' and 'HasAvailableTokens' @L86"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Configures authentication and Identity endpoints @L96"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L125"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:29:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 29,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 29,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_62_62",
+        "label": "Evaluates branch condition",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "responsibility": "if (!string.IsNullOrEmpty(apiBaseUrl))",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(apiBaseUrl)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:62:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 62,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 62,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_fallback_66_66",
+        "label": "Falls back to alternate path",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "else",
+        "responsibility": "else",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "fallback"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fallback"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:66:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 66,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 66,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_125_125",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "responsibility": "var isApiRequest = context.Request.Path.StartsWithSegments(\"/api\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:125:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 125,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 125,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_126_126",
+        "label": "Reads repository or persistence state",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "context.Request.Path.StartsWithSegments(\"/identity\") ||",
+        "responsibility": "context.Request.Path.StartsWithSegments(\"/identity\") ||",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:126:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 126,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 126,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_dependencyinjection_cs_addapplication_8",
+        "label": "AddApplication",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Extension method that registers application mapping configuration and MediatR handlers, returning the IServiceCollection for chaining.",
+        "responsibility": "Extension method that registers application mapping configuration and MediatR handlers, returning the IServiceCollection for chaining.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection extension",
+          "Service registration"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "DependencyInjection"
+          },
+          {
+            "label": "Signature",
+            "value": "(services: IServiceCollection) -> IServiceCollection"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register mapping configuration @L10"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Register MediatR handlers @L11"
+          },
+          {
+            "label": "Action:return",
+            "value": "Return IServiceCollection @L13"
+          },
+          {
+            "label": "Action:return",
+            "value": "Returns result @L13"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/DependencyInjection.cs:8:1",
+            "path": "NexusReader.Application/DependencyInjection.cs",
+            "line": 8,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/DependencyInjection.cs",
+        "sourceLine": 8,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/DependencyInjection.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_31",
+        "label": "AddInfrastructure",
+        "diagramId": "control_flow_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Configures and registers infrastructure services and external clients (DBs, AI, vector/graph stores, job processing, authorization, and app-layer implementations) into the DI container.",
+        "responsibility": "Configures and registers infrastructure services and external clients (DBs, AI, vector/graph stores, job processing, authorization, and app-layer implementations) into the DI container.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection / Service Registration",
+          "Factory (DbContextFactory)",
+          "Resilience (retry pipeline)",
+          "Repository"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "DependencyInjection"
+          },
+          {
+            "label": "Signature",
+            "value": "(this IServiceCollection services, IConfiguration configuration) -> IServiceCollection"
+          },
+          {
+            "label": "Calls",
+            "value": "12"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Selects DB provider @L33"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L34"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L44"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Qdrant client registration @L56"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Neo4j driver registration @L60"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L64"
+          },
+          {
+            "label": "Domain",
+            "value": "Ebook / Epub processing, AI (chat/embeddings), Vector store (Qdrant)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/DependencyInjection.cs:31:1",
+            "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+            "line": 31,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "sourceLine": 31,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/DependencyInjection.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_knowledgerequest_566",
+        "label": "KnowledgeRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Request DTO carrying free-text input and optional ebook context for knowledge APIs.",
+        "responsibility": "Request DTO carrying free-text input and optional ebook context for knowledge APIs.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Text",
+            "value": "string required"
+          },
+          {
+            "label": "EbookId",
+            "value": "Guid?"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:566:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 566,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 566,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_groundednessrequest_567",
+        "label": "GroundednessRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "Request DTO for verifying answer groundedness in a context.",
+        "responsibility": "Request DTO for verifying answer groundedness in a context.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "Answer",
+            "value": "string required"
+          },
+          {
+            "label": "Context",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:567:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 567,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 567,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_semanticsearchrequest_568",
+        "label": "SemanticSearchRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "DTO for semantic search requests with a limit.",
+        "responsibility": "DTO for semantic search requests with a limit.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "2"
+          },
+          {
+            "label": "QueryText",
+            "value": "string required"
+          },
+          {
+            "label": "Limit",
+            "value": "int"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:568:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 568,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 568,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_web_program_cs_askquestionrequest_569",
+        "label": "AskQuestionRequest",
+        "diagramId": "contracts_flow_1_nexusreader_web_client_program_cs",
+        "nodeRole": "dto",
+        "diagramFamily": "class-diagram",
+        "architecturalLayer": "backend",
+        "summary": "DTO for question-asking APIs including optional ebook context and limit.",
+        "responsibility": "DTO for question-asking APIs including optional ebook context and limit.",
+        "technologyHints": [
+          "csharp",
+          "Dependency Injection",
+          "Minimal APIs",
+          "Mediator/CQRS (MediatR)",
+          "Retry with exponential backoff"
+        ],
+        "detailItems": [
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "3"
+          },
+          {
+            "label": "Question",
+            "value": "string required"
+          },
+          {
+            "label": "EbookId",
+            "value": "Guid?"
+          },
+          {
+            "label": "Limit",
+            "value": "int"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, Knowledge (knowledge service, graph, summary), Ebook / EPUB ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Web/Program.cs:569:1",
+            "path": "NexusReader.Web/Program.cs",
+            "line": 569,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Web/Program.cs",
+        "sourceLine": 569,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Web/Program.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_persistence_ebookrepository_cs_file_1",
+        "label": "EbookRepository",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Concrete EF Core repository implementing IEbookRepository to manage Author and Ebook entities via AppDbContext.",
+        "responsibility": "Concrete EF Core repository implementing IEbookRepository to manage Author and Ebook entities via AppDbContext.",
+        "technologyHints": [
+          "csharp",
+          "Repository",
+          "EF Core DbContext/UnitOfWork (implicit via SaveChangesAsync)"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "EbookRepository"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_context",
+            "value": "AppDbContext required"
+          },
+          {
+            "label": "Domain",
+            "value": "Author, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Persistence/EbookRepository.cs:1:1",
+            "path": "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_infrastructure_persistence_ebookrepository_cs_ebookrepository_12",
+        "label": "EbookRepository",
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+            "label": "Domain",
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+            "value": "INativeStorageService required"
+          },
+          {
+            "label": "_platformService",
+            "value": "IPlatformService required"
+          },
+          {
+            "label": "_logger",
+            "value": "ILogger<SyncService> required"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, Page, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.UI.Shared/Services/SyncService.cs:8:1",
+            "path": "NexusReader.UI.Shared/Services/SyncService.cs",
+            "line": 8,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.UI.Shared/Services/SyncService.cs",
+        "sourceLine": 8,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.UI.Shared/Services/SyncService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_26",
+        "label": "Handle",
+        "diagramId": "primary_runtime_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "method",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Orchestrates updating a user's last-read position and ebook progress in the DB, then broadcasts the progress to other devices.",
+        "responsibility": "Orchestrates updating a user's last-read position and ebook progress in the DB, then broadcasts the progress to other devices.",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR)",
+          "Repository/EF DbContext usage"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "UpdateReadingProgressCommandHandler"
+          },
+          {
+            "label": "Signature",
+            "value": "(request: UpdateReadingProgressCommand, cancellationToken: CancellationToken) -> Task<Result>"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Create DbContext @L28"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Load user @L30"
+          },
+          {
+            "label": "Action:repository-read",
+            "value": "Reads repository or persistence state @L30"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L31"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "User existence check @L31"
+          },
+          {
+            "label": "Action:return",
+            "value": "Returns result @L33"
+          },
+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:26:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "line": 26,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "sourceLine": 26,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_30_30",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "var user = await context.Users.FirstOrDefaultAsync(u => u.Id == request.UserId, cancellationToken);",
+        "responsibility": "var user = await context.Users.FirstOrDefaultAsync(u => u.Id == request.UserId, cancellationToken);",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR)",
+          "Repository/EF DbContext usage"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "UpdateReadingProgressCommandHandler"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:30:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "line": 30,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "sourceLine": 30,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_31_31",
+        "label": "Evaluates branch condition",
+        "diagramId": "primary_runtime_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "if (user == null)",
+        "responsibility": "if (user == null)",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR)",
+          "Repository/EF DbContext usage"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "UpdateReadingProgressCommandHandler"
+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "user == null"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:31:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "line": 31,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "sourceLine": 31,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_guard_clause_31_31",
+        "label": "User existence check",
+        "diagramId": "primary_runtime_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "if user not found returns Result.Fail(\"User not found.\") (lines 31-34)",
+        "responsibility": "if user not found returns Result.Fail(\"User not found.\") (lines 31-34)",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR)",
+          "Repository/EF DbContext usage"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "UpdateReadingProgressCommandHandler"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "user == null"
+          },
+          {
+            "label": "Outcomes",
+            "value": "fail, continue"
+          },
+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:31:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "line": 31,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "sourceLine": 31,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_33_33",
+        "label": "Returns result",
+        "diagramId": "primary_runtime_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "return",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "return Result.Fail(\"User not found.\");",
+        "responsibility": "return Result.Fail(\"User not found.\");",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR)",
+          "Repository/EF DbContext usage"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "UpdateReadingProgressCommandHandler"
+          },
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:33:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "line": 33,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "sourceLine": 33,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_40_40",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "var ebook = await context.Ebooks.FirstOrDefaultAsync(e => e.Id == request.EbookId, cancellationToken);",
+        "responsibility": "var ebook = await context.Ebooks.FirstOrDefaultAsync(e => e.Id == request.EbookId, cancellationToken);",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR)",
+          "Repository/EF DbContext usage"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "UpdateReadingProgressCommandHandler"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:40:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "line": 40,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "sourceLine": 40,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_branch_41_41",
+        "label": "Evaluates branch condition",
+        "diagramId": "primary_runtime_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "if (ebook != null)",
+        "responsibility": "if (ebook != null)",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR)",
+          "Repository/EF DbContext usage"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "UpdateReadingProgressCommandHandler"
+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "ebook != null"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:41:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "line": 41,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "sourceLine": 41,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_repository_read_49_49",
+        "label": "Reads repository or persistence state",
+        "diagramId": "primary_runtime_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "step",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "await context.SaveChangesAsync(cancellationToken);",
+        "responsibility": "await context.SaveChangesAsync(cancellationToken);",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR)",
+          "Repository/EF DbContext usage"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "UpdateReadingProgressCommandHandler"
+          },
+          {
+            "label": "Action",
+            "value": "repository-read"
+          },
+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:49:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "line": 49,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "sourceLine": 49,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59_59",
+        "label": "Return success result",
+        "diagramId": "primary_runtime_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "return",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "return Result.Ok()",
+        "responsibility": "return Result.Ok()",
+        "technologyHints": [
+          "csharp",
+          "Mediator (MediatR)",
+          "Repository/EF DbContext usage"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "UpdateReadingProgressCommandHandler"
+          },
+          {
+            "label": "Action",
+            "value": "return"
+          },
+          {
+            "label": "Domain",
+            "value": "User, Ebook, ReadingProgress"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs:59:1",
+            "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "line": 59,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "sourceLine": 59,
+        "sourceTargetKind": "return",
+        "evidencePaths": [
+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_21",
+        "label": "BroadcastProgressAsync",
+        "diagramId": "control_flow_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "method",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Broadcasts a 'ProgressUpdated' message (pageId + timestamp) to all connections for a given user; attempts to consider an excluded connection id but ultimately uses Clients.User(userId).",
+        "responsibility": "Broadcasts a 'ProgressUpdated' message (pageId + timestamp) to all connections for a given user; attempts to consider an excluded connection id but ultimately uses Clients.User(userId).",
+        "technologyHints": [
+          "csharp",
+          "SignalR broadcaster",
+          "Real-time push / integration-client"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SignalRSyncBroadcaster"
+          },
+          {
+            "label": "Signature",
+            "value": "(userId: string, pageId: string, timestamp: DateTime, excludedConnectionId: string?, cancellationToken: CancellationToken) -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Check excludedConnectionId @L30"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L30"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "SignalR send ProgressUpdated (branch true) @L32"
+          },
+          {
+            "label": "Action:external-call",
+            "value": "Calls external dependency @L34"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Exclusion limitation @L36"
+          },
+          {
+            "label": "Action:fallback",
+            "value": "Falls back to alternate path @L40"
+          },
+          {
+            "label": "Domain",
+            "value": "Sync, Progress, Ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs:21:1",
+            "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+            "line": 21,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "sourceLine": 21,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_guard_clause_30_30",
+        "label": "Check excludedConnectionId",
+        "diagramId": "control_flow_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "Different branches exist but both branches call Clients.User(userId).SendAsync(...) due to HubContext limitations",
+        "responsibility": "Different branches exist but both branches call Clients.User(userId).SendAsync(...) due to HubContext limitations",
+        "technologyHints": [
+          "csharp",
+          "SignalR broadcaster",
+          "Real-time push / integration-client"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SignalRSyncBroadcaster"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(excludedConnectionId)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "branch-true: attempt comment & send, branch-false: send"
+          },
+          {
+            "label": "Domain",
+            "value": "Sync, Progress, Ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs:30:1",
+            "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+            "line": 30,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "sourceLine": 30,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_branch_30_30",
+        "label": "Evaluates branch condition",
+        "diagramId": "control_flow_Node_xref_realtime_and_sync_md_reading_progress_sync_flow",
+        "nodeRole": "step",
+        "diagramFamily": "control-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (!string.IsNullOrEmpty(excludedConnectionId))",
+        "responsibility": "if (!string.IsNullOrEmpty(excludedConnectionId))",
+        "technologyHints": [
+          "csharp",
+          "SignalR broadcaster",
+          "Real-time push / integration-client"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SignalRSyncBroadcaster"
+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "!string.IsNullOrEmpty(excludedConnectionId)"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "Sync, Progress, Ingestion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs:30:1",
+            "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+            "line": 30,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "sourceLine": 30,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_ui_shared_services_syncservice_cs_initializeasync_32",
+        "label": "InitializeAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Initialize the SignalR HubConnection using stored auth token and wire up incoming progress notifications; returns success/failure Result.",
+        "responsibility": "Initialize the SignalR HubConnection using stored auth token and wire up incoming progress notifications; returns success/failure Result.",
+        "technologyHints": [
+          "csharp",
+          "SignalR Hub client",
+          "Debounce (trailing-edge)",
+          "Event forwarding"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncService"
+          },
+          {
+            "label": "Signature",
+            "value": "() -> Task<Result>"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Guards early exit or rejection path @L34"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Skip if already initialized @L34"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Read secure token @L36"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Auth token missing -> fail @L37"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Guards early exit or rejection path @L37"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Compute hub URL @L39"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, Page, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.UI.Shared/Services/SyncService.cs:32:1",
+            "path": "NexusReader.UI.Shared/Services/SyncService.cs",
+            "line": 32,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.UI.Shared/Services/SyncService.cs",
+        "sourceLine": 32,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.UI.Shared/Services/SyncService.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_ui_shared_services_syncservice_cs_initializeasync_guard_clause_34_34",
+        "label": "Guards early exit or rejection path",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (_isInitialized) return Result.Ok();",
+        "responsibility": "if (_isInitialized) return Result.Ok();",
+        "technologyHints": [
+          "csharp",
+          "SignalR Hub client",
+          "Debounce (trailing-edge)",
+          "Event forwarding"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncService"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "_isInitialized) return Result.Ok("
+          },
+          {
+            "label": "Outcomes",
+            "value": "exit, continue"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, Page, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.UI.Shared/Services/SyncService.cs:34:1",
+            "path": "NexusReader.UI.Shared/Services/SyncService.cs",
+            "line": 34,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.UI.Shared/Services/SyncService.cs",
+        "sourceLine": 34,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.UI.Shared/Services/SyncService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_70",
+        "label": "UpdateProgressAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Debounced, trailing-edge update of reading progress: avoids duplicate sends, schedules a delayed send, ensures hub is initialized and sends progress when connected.",
+        "responsibility": "Debounced, trailing-edge update of reading progress: avoids duplicate sends, schedules a delayed send, ensures hub is initialized and sends progress when connected.",
+        "technologyHints": [
+          "csharp",
+          "SignalR Hub client",
+          "Debounce (trailing-edge)",
+          "Event forwarding"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncService"
+          },
+          {
+            "label": "Signature",
+            "value": "(pageId: string, ebookId: Guid, progress: double, chapterTitle: string?, chapterIndex: int) -> Task<Result>"
+          },
+          {
+            "label": "Calls",
+            "value": "1"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Guards early exit or rejection path @L72"
+          },
+          {
+            "label": "Action:guard-clause",
+            "value": "Skip if same page was last sent @L72"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Trailing-edge debounce setup @L75"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Spawn delayed send task @L79"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Delay before sending @L83"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Ensure hub is initialized @L85"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, Page, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.UI.Shared/Services/SyncService.cs:70:1",
+            "path": "NexusReader.UI.Shared/Services/SyncService.cs",
+            "line": 70,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.UI.Shared/Services/SyncService.cs",
+        "sourceLine": 70,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.UI.Shared/Services/SyncService.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_guard_clause_72_72",
+        "label": "Guards early exit or rejection path",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (pageId == _lastSentPageId) return Result.Ok();",
+        "responsibility": "if (pageId == _lastSentPageId) return Result.Ok();",
+        "technologyHints": [
+          "csharp",
+          "SignalR Hub client",
+          "Debounce (trailing-edge)",
+          "Event forwarding"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncService"
+          },
+          {
+            "label": "Action",
+            "value": "guard-clause"
+          },
+          {
+            "label": "Condition",
+            "value": "pageId == _lastSentPageId) return Result.Ok("
+          },
+          {
+            "label": "Outcomes",
+            "value": "exit, continue"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, Page, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.UI.Shared/Services/SyncService.cs:72:1",
+            "path": "NexusReader.UI.Shared/Services/SyncService.cs",
+            "line": 72,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.UI.Shared/Services/SyncService.cs",
+        "sourceLine": 72,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.UI.Shared/Services/SyncService.cs"
+        ]
+      },
+      {
+        "id": "flow_method_nexusreader_ui_shared_services_syncservice_cs_disposeasync_103",
+        "label": "DisposeAsync",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "method",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "Cleans up resources: cancels debounce token and disposes the HubConnection if present.",
+        "responsibility": "Cleans up resources: cancels debounce token and disposes the HubConnection if present.",
+        "technologyHints": [
+          "csharp",
+          "SignalR Hub client",
+          "Debounce (trailing-edge)",
+          "Event forwarding"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncService"
+          },
+          {
+            "label": "Signature",
+            "value": "() -> Task"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Cancel debounce token @L105"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Dispose hub connection @L106"
+          },
+          {
+            "label": "Action:branch",
+            "value": "Evaluates branch condition @L106"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, Page, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.UI.Shared/Services/SyncService.cs:103:1",
+            "path": "NexusReader.UI.Shared/Services/SyncService.cs",
+            "line": 103,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.UI.Shared/Services/SyncService.cs",
+        "sourceLine": 103,
+        "sourceTargetKind": "method",
+        "evidencePaths": [
+          "NexusReader.UI.Shared/Services/SyncService.cs"
+        ]
+      },
+      {
+        "id": "flow_action_nexusreader_ui_shared_services_syncservice_cs_disposeasync_branch_106_106",
+        "label": "Evaluates branch condition",
+        "diagramId": "method_flows_graph",
+        "nodeRole": "step",
+        "diagramFamily": "method-flow",
+        "architecturalLayer": "backend",
+        "summary": "if (_hubConnection != null)",
+        "responsibility": "if (_hubConnection != null)",
+        "technologyHints": [
+          "csharp",
+          "SignalR Hub client",
+          "Debounce (trailing-edge)",
+          "Event forwarding"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "SyncService"
+          },
+          {
+            "label": "Action",
+            "value": "branch"
+          },
+          {
+            "label": "Condition",
+            "value": "_hubConnection != null"
+          },
+          {
+            "label": "Outcomes",
+            "value": "true, false"
+          },
+          {
+            "label": "Domain",
+            "value": "ReadingProgress, Page, Ebook"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.UI.Shared/Services/SyncService.cs:106:1",
+            "path": "NexusReader.UI.Shared/Services/SyncService.cs",
+            "line": 106,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.UI.Shared/Services/SyncService.cs",
+        "sourceLine": 106,
+        "sourceTargetKind": "step",
+        "evidencePaths": [
+          "NexusReader.UI.Shared/Services/SyncService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_services_billingservice_cs_file_1",
+        "label": "BillingService",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Constructor; captures and stores DI dependencies (db context factory, user manager, stripe settings, logger).",
+        "responsibility": "Constructor; captures and stores DI dependencies (db context factory, user manager, stripe settings, logger).",
+        "technologyHints": [
+          "csharp",
+          "Service"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "BillingService"
+          },
+          {
+            "label": "Signature",
+            "value": "(dbContextFactory: IDbContextFactory<AppDbContext>, userManager: UserManager<NexusUser>, stripeSettings: IOptions<StripeSettings>, logger: ILogger<BillingService>) -> BillingService"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Store injected dependencies @L26"
+          },
+          {
+            "label": "Domain",
+            "value": "SubscriptionPlan, NexusUser, Billing"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/BillingService.cs:1:1",
+            "path": "NexusReader.Infrastructure/Services/BillingService.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/BillingService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/BillingService.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_infrastructure_services_bookstorageservice_cs_bookstorageservice_10",
+        "label": "BookStorageService",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "class",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Concrete infrastructure implementation of IBookStorageService that persists ebook and cover bytes to filesystem under the web root.",
+        "responsibility": "Concrete infrastructure implementation of IBookStorageService that persists ebook and cover bytes to filesystem under the web root.",
+        "technologyHints": [
+          "csharp",
+          "Storage Service",
+          "Filesystem Persistence",
+          "Wrapper Overload Delegation"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "BookStorageService"
+          },
+          {
+            "label": "Signature",
+            "value": "(environment: IWebHostEnvironment) -> BookStorageService"
+          },
+          {
+            "label": "Calls",
+            "value": "0"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Stores IWebHostEnvironment @L16"
+          },
+          {
+            "label": "Shape",
+            "value": "model"
+          },
+          {
+            "label": "Fields",
+            "value": "1"
+          },
+          {
+            "label": "_environment",
+            "value": "IWebHostEnvironment required"
+          },
+          {
+            "label": "Domain",
+            "value": "Book (ebook file), Cover (cover image), Web-root relative static asset paths (uploads, covers)"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/BookStorageService.cs:10:1",
+            "path": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+            "line": 10,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+        "sourceLine": 10,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/BookStorageService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_services_knowledgeservice_cs_file_1",
+        "label": "KnowledgeService",
+        "diagramId": "dependency_map_graph",
+        "nodeRole": "service",
+        "diagramFamily": "dependency-map",
+        "architecturalLayer": "backend",
+        "summary": "Constructs the service, stores injected clients/config and initializes the tokenizer and retry pipeline.",
+        "responsibility": "Constructs the service, stores injected clients/config and initializes the tokenizer and retry pipeline.",
+        "technologyHints": [
+          "csharp",
+          "Cache-Aside",
+          "Deduplicating concurrent requests (ConcurrentDictionary + Lazy<Task>)",
+          "Retry/Resilience (Polly ResiliencePipeline)",
+          "RAG (retrieval-augmented generation) with vector DB + graph expansion"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "KnowledgeService"
+          },
+          {
+            "label": "Signature",
+            "value": "(chatClient: IChatClient, embeddingGenerator: IEmbeddingGenerator<string,Embedding<float>>, dbContextFactory: IDbContextFactory<AppDbContext>, pipelineProvider: ResiliencePipelineProvider<string>, settings: IOptions<AiSettings>, logger: ILogger<KnowledgeService>, qdrantClient: QdrantClient, neo4jDriver: IDriver) -> KnowledgeService"
+          },
+          {
+            "label": "Calls",
+            "value": "2"
+          },
+          {
+            "label": "Action:mapping",
+            "value": "Saves injected dependencies to fields @L48"
+          },
+          {
+            "label": "Domain",
+            "value": "KnowledgeUnit, KnowledgeUnitLink, Knowledge graph expansion"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Services/KnowledgeService.cs:1:1",
+            "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "service",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_configuration_aisettings_cs_file_1",
+        "label": "AiSettings",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "responsibility": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "technologyHints": [
+          "csharp",
+          "Options Pattern",
+          "Configuration POCO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AiSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "8"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ApiKey",
+            "value": "string"
+          },
+          {
+            "label": "Model",
+            "value": "string"
+          },
+          {
+            "label": "EmbeddingModel",
+            "value": "string"
+          },
+          {
+            "label": "Domain",
+            "value": "AI configuration, LLM model selection, Embeddings"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Configuration/AiSettings.cs:1:1",
+            "path": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+            "line": 1,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+        "sourceLine": 1,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Configuration/AiSettings.cs"
+        ]
+      },
+      {
+        "id": "flow_type_nexusreader_infrastructure_configuration_aisettings_cs_aisettings_3",
+        "label": "AiSettings",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "responsibility": "Holds AI/Google-related configuration for the application (model names, keys, token limits, retry and temperature settings).",
+        "technologyHints": [
+          "csharp",
+          "Options Pattern",
+          "Configuration POCO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "AiSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "8"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ApiKey",
+            "value": "string"
+          },
+          {
+            "label": "Model",
+            "value": "string"
+          },
+          {
+            "label": "EmbeddingModel",
+            "value": "string"
+          },
+          {
+            "label": "Domain",
+            "value": "AI configuration, LLM model selection, Embeddings"
+          }
+        ],
+        "navigationTargets": [
+          {
+            "key": "source",
+            "href": "vscode://file/NexusReader.Infrastructure/Configuration/AiSettings.cs:3:1",
+            "path": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+            "line": 3,
+            "tooltip": "Open source"
+          }
+        ],
+        "confidence": "high",
+        "sourcePath": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+        "sourceLine": 3,
+        "sourceTargetKind": "dependency",
+        "evidencePaths": [
+          "NexusReader.Infrastructure/Configuration/AiSettings.cs"
+        ]
+      },
+      {
+        "id": "flow_file_nexusreader_infrastructure_configuration_stripesettings_cs_file_1",
+        "label": "StripeSettings",
+        "diagramId": "startup_runtime_graph",
+        "nodeRole": "dto",
+        "diagramFamily": "primary-runtime",
+        "architecturalLayer": "backend",
+        "summary": "Configuration DTO that holds Stripe product identifiers and the configuration section key.",
+        "responsibility": "Configuration DTO that holds Stripe product identifiers and the configuration section key.",
+        "technologyHints": [
+          "csharp",
+          "Options pattern",
+          "Configuration DTO"
+        ],
+        "detailItems": [
+          {
+            "label": "Owner",
+            "value": "StripeSettings"
+          },
+          {
+            "label": "Shape",
+            "value": "dto"
+          },
+          {
+            "label": "Fields",
+            "value": "4"
+          },
+          {
+            "label": "SectionName",
+            "value": "string (const) required"
+          },
+          {
+            "label": "ProProductId",
+            "value": "string required"
+          },
+          {
+            "label": "BasicProductId",
+            "value": "string required"
+          },
+          {
+            "label": "FreeProductId",
+            "value": "string required"
+          },
+          {
+            "label": "Domain",
+            "value": "Stripe, ProductId"
+          }
+        ],
+        "navigationTargets": [
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_352_352",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_357_357",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
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+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_361_361",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_364_364",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_381_381",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_switch_385_385",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_402_402",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_406_406",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_416_416",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_419_419",
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+          "role": "startup",
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+          "kind": "action",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_424_424",
+          "label": "Evaluates branch condition",
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+          "layer": "application",
+          "kind": "action",
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+          "role": "startup",
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+          "kind": "action",
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+          "role": "startup",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_460_460",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_473_473",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_480_480",
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+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_486_486",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "role": "startup",
+          "layer": "application",
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+          "layer": "application",
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+          ]
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_501_501",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidenceReferences": [
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+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_loop_505_505",
+          "label": "Repeats work over a collection or condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
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+          "evidencePaths": [
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+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_log_507_507",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 507,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 507
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_510_510",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 510,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 510
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_512_512",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 512,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 512
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_log_516_516",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 516,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 516
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_517_517",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 517,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 517
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_branch_529_529",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 529,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 529
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_532_532",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 532,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 532
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_536_536",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 536,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 536
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_545_545",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 545,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 545
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_550_550",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 550,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 550
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_551_551",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 551,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 551
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_guard_clause_554_554",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 554,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 554
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_repository_read_554_554",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 554,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 554
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_program_top_level_return_556_556",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 556,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 556
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_infrastructure_realtime_synchub_cs_synchub_14",
+          "label": "SyncHub",
+          "role": "endpoint",
+          "layer": "infrastructure",
+          "kind": "method",
+          "filePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourcePath": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "sourceLine": 14,
+          "evidencePaths": [
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "line": 14
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_startupvalidation_scope_check_165",
+          "label": "StartupValidation (scope check)",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 165,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 165
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_startupvalidation_scope_check_branch_169_169",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 169,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 169
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_startupvalidation_scope_check_guard_clause_169_169",
+          "label": "Fail if infrastructure missing",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 169,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 169
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_startupvalidation_scope_check_validation_171_171",
+          "label": "Validates input or state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 171,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 171
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_ensuredatabaseinitialized_175",
+          "label": "EnsureDatabaseInitialized",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 175,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 175
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_loop_186_186",
+          "label": "Repeats work over a collection or condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 186,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 186
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_branch_190_190",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 190,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 190
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_branch_198_198",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 198,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 198
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_branch_206_206",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 206,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 206
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_206_206",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 206,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 206
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_208_208",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 208,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 208
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_branch_216_216",
+          "label": "Evaluates branch condition",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 216,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 216
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_216_216",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 216,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 216
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_ensuredatabaseinitialized_log_218_218",
+          "label": "Logs runtime state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 218,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 218
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_get_api_epub_ebookid_index_249",
+          "label": "GET /api/epub/{ebookId}/{index}",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 249,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 249
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_guard_clause_252_252",
+          "label": "Extracts userId from ClaimsPrincipal",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 252,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 252
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_repository_read_252_252",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 252,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 252
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_guard_clause_255_255",
+          "label": "Guards early exit or rejection path",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 255,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 255
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_branch_255_255",
+          "label": "Return Ok on success, BadRequest on failure",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 255,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 255
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_get_api_epub_ebookid_index_return_258_258",
+          "label": "Returns result",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 258,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 258
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_265",
+          "label": "KnowledgeApi POST /api/knowledge/ (GetKnowledge)",
+          "role": "startup",
+          "layer": "application",
+          "kind": "method",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 265,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.Web/Program.cs",
+              "line": 265
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_web_program_cs_knowledgeapi_post_api_knowledge_getknowledge_repository_read_267_267",
+          "label": "Reads repository or persistence state",
+          "role": "startup",
+          "layer": "application",
+          "kind": "action",
+          "filePath": "NexusReader.Web/Program.cs",
+          "sourcePath": "NexusReader.Web/Program.cs",
+          "sourceLine": 267,
+          "evidencePaths": [
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+              "path": "NexusReader.UI.Shared/Layout/ReconnectModal.razor.js",
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+          "layer": "frontend",
+          "kind": "method",
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+              "path": "NexusReader.UI.Shared/Layout/ReconnectModal.razor.js",
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+          "role": "database-config",
+          "layer": "data",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "file",
+          "filePath": "NexusReader.UI.Shared/_Imports.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
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+          "role": "ui-component",
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+          "kind": "action",
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+          "sourcePath": "NexusReader.Maui/Main.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "sourcePath": "NexusReader.Maui/Main.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "file",
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+          "kind": "action",
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+          "layer": "frontend",
+          "kind": "action",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "label": "Returns result",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+              "path": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "label": "OnAfterRenderAsync",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+              "path": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "label": "firstRender check",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "label": "Start fetch when ContextBlockId present",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "label": "Evaluates branch condition",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
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+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "label": "Returns result",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
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+          "layer": "frontend",
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+          "layer": "frontend",
+          "kind": "action",
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+          "role": "ui-component",
+          "layer": "frontend",
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+          "layer": "frontend",
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+          "layer": "frontend",
+          "kind": "action",
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+          "role": "ui-component",
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+          "kind": "file",
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+          "layer": "frontend",
+          "kind": "method",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
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+          "id": "flow_action_nexusreader_ui_shared_components_molecules_knowledgecheck_razor_getoptionclass_return_108_108",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/KnowledgeCheck.razor",
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+          "id": "flow_action_nexusreader_ui_shared_components_molecules_knowledgecheck_razor_getoptionclass_return_110_110",
+          "label": "Returns result",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Molecules/KnowledgeCheck.razor",
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+              "path": "NexusReader.UI.Shared/Components/Molecules/KnowledgeCheck.razor",
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+          "id": "flow_file_nexusreader_ui_shared_components_organisms_currentreadingwidget_razor_file_1",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "file",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
+              "line": 1
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "sourcePath": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+          "id": "flow_action_nexusreader_ui_shared_components_organisms_currentreadingwidget_razor_render_branch_29_29",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+          "id": "flow_action_nexusreader_ui_shared_components_organisms_currentreadingwidget_razor_render_fallback_35_35",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+          "label": "Falls back to alternate path",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "sourcePath": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+          "id": "flow_method_nexusreader_ui_shared_components_organisms_currentreadingwidget_razor_handlecontinuereading_72",
+          "label": "HandleContinueReading",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+          "id": "flow_action_nexusreader_ui_shared_components_organisms_currentreadingwidget_razor_handlecontinuereading_branch_74_74",
+          "label": "Evaluates branch condition",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
+              "line": 74
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+          "id": "flow_action_nexusreader_ui_shared_components_organisms_currentreadingwidget_razor_handlecontinuereading_guard_clause_74_74",
+          "label": "Guard: require Book",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
+              "line": 74
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+          "role": "dto",
+          "layer": "frontend",
+          "kind": "type",
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+              "line": 70
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+          "id": "flow_file_nexusreader_ui_shared_components_organisms_globalintelligencepanel_razor_file_1",
+          "label": "GlobalIntelligencePanel",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "file",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+          "label": "Evaluates branch condition",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+          "id": "flow_action_nexusreader_ui_shared_components_organisms_globalintelligencepanel_razor_render_component_markup_fallback_21_21",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+              "path": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+          "id": "flow_action_nexusreader_ui_shared_components_organisms_globalintelligencepanel_razor_render_component_markup_loop_23_23",
+          "label": "Iterate Results",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "layer": "frontend",
+          "kind": "method",
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+          "id": "flow_file_nexusreader_ui_shared_components_organisms_bookingestionmodal_razor_file_1",
+          "label": "BookIngestionModal",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "file",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
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+          "sourcePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
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+          "id": "flow_action_nexusreader_ui_shared_components_organisms_bookingestionmodal_razor_handlefileselected_return_159_159",
+          "label": "Returns result",
+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
+          "sourcePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
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+          "id": "flow_action_nexusreader_ui_shared_components_organisms_bookingestionmodal_razor_handlefileselected_branch_176_176",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "label": "Map DeviceType to _isMobile",
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+              "path": "NexusReader.UI.Shared/Layout/ReaderLayout.razor",
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+          "label": "Only run JS initialization on first render",
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+          "role": "ui-component",
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+          "kind": "method",
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+          "role": "ui-page",
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+              "path": "NexusReader.UI.Shared/Pages/Dashboard.razor",
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+          "layer": "frontend",
+          "kind": "method",
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+          "role": "ui-page",
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+          "kind": "action",
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+          "layer": "frontend",
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+          "layer": "frontend",
+          "kind": "file",
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+          "label": "AuthorizeAttribute",
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+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Settings.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Settings.razor",
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+            "NexusReader.UI.Shared/Pages/Settings.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Settings.razor",
+              "line": 2
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_settings_razor_authorizeattribute_guard_clause_2_2",
+          "label": "Enforces authentication",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Settings.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Settings.razor",
+          "sourceLine": 2,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Settings.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Settings.razor",
+              "line": 2
+            }
+          ]
+        },
+        {
+          "id": "flow_file_nexusreader_ui_shared_pages_intelligence_razor_file_1",
+          "label": "Intelligence.razor",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "file",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 1,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 1
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_intelligence_razor_oninitializedasync_388",
+          "label": "OnInitializedAsync",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
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+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 388,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 388
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_intelligence_razor_handlekeyup_400",
+          "label": "HandleKeyUp",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 400,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 400
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_intelligence_razor_handlekeyup_branch_402_402",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 402,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 402
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_intelligence_razor_handlekeyup_guard_clause_402_402",
+          "label": "Triggers only on Enter + non-empty question + not loading",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 402,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 402
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_intelligence_razor_askquestionasync_408",
+          "label": "AskQuestionAsync",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 408,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 408
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_intelligence_razor_askquestionasync_guard_clause_410_410",
+          "label": "Guards early exit or rejection path",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 410,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 410
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_intelligence_razor_askquestionasync_branch_420_420",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 420,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 420
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_intelligence_razor_askquestionasync_branch_426_426",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 426,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 426
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_intelligence_razor_askquestionasync_fallback_430_430",
+          "label": "Falls back to alternate path",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 430,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 430
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_intelligence_razor_askquestionasync_repository_read_434_434",
+          "label": "Reads repository or persistence state",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
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+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 434
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_intelligence_razor_askquestionasync_fallback_441_441",
+          "label": "Construct error response on exception",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+          "sourceLine": 441,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Intelligence.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+              "line": 441
+            }
+          ]
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+        {
+          "id": "flow_file_nexusreader_ui_shared_pages_library_razor_file_1",
+          "label": "Library",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "file",
+          "filePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourceLine": 1,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Library.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Library.razor",
+              "line": 1
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_library_razor_onafterrenderasync_511",
+          "label": "OnAfterRenderAsync",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Library.razor",
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+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Library.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Library.razor",
+              "line": 511
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_library_razor_onafterrenderasync_branch_513_513",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourceLine": 513,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Library.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Library.razor",
+              "line": 513
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_library_razor_onafterrenderasync_guard_clause_513_513",
+          "label": "Run only on first render",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourceLine": 513,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Library.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Library.razor",
+              "line": 513
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_library_razor_loadbooksasync_519",
+          "label": "LoadBooksAsync",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Library.razor",
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+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Library.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Library.razor",
+              "line": 519
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_library_razor_loadbooksasync_branch_532_532",
+          "label": "Browser-specific fallback",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourceLine": 532,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Library.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Library.razor",
+              "line": 532
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_library_razor_refreshlibrary_543",
+          "label": "RefreshLibrary",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Library.razor",
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+          "evidencePaths": [
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Library.razor",
+              "line": 543
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_library_razor_openbook_549",
+          "label": "OpenBook",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Library.razor",
+          "sourceLine": 549,
+          "evidencePaths": [
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Library.razor",
+              "line": 549
+            }
+          ]
+        },
+        {
+          "id": "flow_file_nexusreader_ui_shared_pages_home_razor_file_1",
+          "label": "Home",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "file",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 1,
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+            "NexusReader.UI.Shared/Pages/Home.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 1
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_home_razor_oninitialized_30",
+          "label": "OnInitialized",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 30,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 30
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_home_razor_onparameterssetasync_36",
+          "label": "OnParametersSetAsync",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
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+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
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+          "evidenceReferences": [
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+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 36
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_onparameterssetasync_branch_40_40",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 40,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 40
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_onparameterssetasync_guard_clause_40_40",
+          "label": "Parse 'chapter' query param",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 40,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
+          ],
+          "evidenceReferences": [
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+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 40
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_onparameterssetasync_branch_45_45",
+          "label": "Decide book selection path",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 45,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 45
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_onparameterssetasync_branch_47_47",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 47,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
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+          "evidenceReferences": [
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+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 47
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+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_onparameterssetasync_branch_52_52",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 52,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 52
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+          ]
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+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_onparameterssetasync_fallback_52_52",
+          "label": "Falls back to alternate path",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 52,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
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+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 52
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_onparameterssetasync_branch_56_56",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 56,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 56
+            }
+          ]
+        },
+        {
+          "id": "flow_method_nexusreader_ui_shared_pages_home_razor_onafterrenderasync_63",
+          "label": "OnAfterRenderAsync",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourcePath": "NexusReader.UI.Shared/Pages/Home.razor",
+          "sourceLine": 63,
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Home.razor"
+          ],
+          "evidenceReferences": [
+            {
+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
+              "line": 63
+            }
+          ]
+        },
+        {
+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_onafterrenderasync_branch_65_65",
+          "label": "Evaluates branch condition",
+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "action",
+          "filePath": "NexusReader.UI.Shared/Pages/Home.razor",
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+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
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+          "id": "flow_method_nexusreader_ui_shared_pages_home_razor_disposeasync_100",
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+          "role": "ui-page",
+          "layer": "frontend",
+          "kind": "method",
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+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
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+          "id": "flow_action_nexusreader_ui_shared_pages_home_razor_disposeasync_branch_105_105",
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+          "layer": "frontend",
+          "kind": "action",
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+              "path": "NexusReader.UI.Shared/Pages/Home.razor",
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+          "kind": "file",
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+              "path": "NexusReader.Web/appsettings.Development.json",
+              "line": 1
+            }
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+          "layer": "application",
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+              "path": "NexusReader.Web/appsettings.json",
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+          "kind": "type",
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+              "path": "NexusReader.Web/appsettings.json",
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+            }
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+        },
+        {
+          "id": "flow_type_nexusreader_web_appsettings_json_logging_9",
+          "label": "Logging",
+          "role": "dto",
+          "layer": "application",
+          "kind": "type",
+          "filePath": "NexusReader.Web/appsettings.json",
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+              "path": "NexusReader.Web/appsettings.json",
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+          "label": "AllowedHosts",
+          "role": "unknown",
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+          "kind": "type",
+          "filePath": "NexusReader.Web/appsettings.json",
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+              "path": "NexusReader.Web/appsettings.json",
+              "line": 15
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+          ]
+        },
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+          "id": "flow_type_nexusreader_web_appsettings_json_connectionstrings_16",
+          "label": "ConnectionStrings",
+          "role": "dto",
+          "layer": "application",
+          "kind": "type",
+          "filePath": "NexusReader.Web/appsettings.json",
+          "sourcePath": "NexusReader.Web/appsettings.json",
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+              "path": "NexusReader.Web/appsettings.json",
+              "line": 16
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+          ]
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+          "id": "flow_type_nexusreader_web_appsettings_json_authentication_google_20",
+          "label": "Authentication.Google",
+          "role": "dto",
+          "layer": "application",
+          "kind": "type",
+          "filePath": "NexusReader.Web/appsettings.json",
+          "sourcePath": "NexusReader.Web/appsettings.json",
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+              "path": "NexusReader.Web/appsettings.json",
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+          "id": "flow_type_nexusreader_web_appsettings_json_ai_google_26",
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+          "layer": "application",
+          "kind": "type",
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+          "layer": "application",
+          "kind": "type",
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+              "path": "NexusReader.Web/appsettings.json",
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+          "kind": "method",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "action",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
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+          "role": "ui-component",
+          "layer": "frontend",
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+          "layer": "frontend",
+          "kind": "file",
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+          "sourcePath": "NexusReader.Web/Components/Error.razor",
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+              "path": "NexusReader.Web/Components/Error.razor",
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+          "role": "ui-component",
+          "layer": "frontend",
+          "kind": "method",
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+          "layer": "frontend",
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+          "layer": "application",
+          "kind": "file",
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+              "path": "NexusReader.Web/Properties/launchSettings.json",
+              "line": 1
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+              "path": "NexusReader.Web/Properties/launchSettings.json",
+              "line": 4
+            }
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+          "layer": "application",
+          "kind": "method",
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+          "role": "program-entry",
+          "layer": "frontend",
+          "kind": "method",
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+          "layer": "frontend",
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+          "from": "flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_guard_clause_30_30",
+          "to": "flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_branch_30_30",
+          "semanticLabel": "true / false",
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+          "payload": {
+            "outputSummary": "if (!string.IsNullOrEmpty(excludedConnectionId))",
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+      ],
+      "subgraphs": [
+        {
+          "id": "NexusReader_Infrastructure_RealTime_SignalRSyncBroadcaster",
+          "label": "SignalRSyncBroadcaster"
+        }
+      ],
+      "metadata": {
+        "evidencePaths": [
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+          "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
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+          "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+          "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+          "NexusReader.UI.Shared/Services/SyncService.cs"
+        ],
+        "warnings": []
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/business-map.json b/src/.documentation/machine/business-map.json
new file mode 100644
index 0000000..3bec1e3
--- /dev/null
+++ b/src/.documentation/machine/business-map.json
@@ -0,0 +1,36905 @@
+{
+  "generatedAt": "2026-05-22T06:57:31.134Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "stats": {
+    "documentCount": 10,
+    "domainCount": 750,
+    "capabilityCount": 75,
+    "flowCount": 75,
+    "rankedFlowCount": 75
+  },
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+    "status": "warn",
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+      "coveredCapabilities": 75,
+      "totalFlows": 75,
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+    "issueCount": 6,
+    "issues": [
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+        "severity": "warn",
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+        "severity": "warn",
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+        "message": "Business flow AI groundedness verification is low confidence.",
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+        "confidence": "low"
+      },
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+        ]
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+          "NexusReader.Web/Program.cs",
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+        ]
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+          "NexusReader.Web.Client/Program.cs",
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+              "NexusReader.Application/Queries/Library/GetMyEbooksQuery.cs",
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+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+              "NexusReader.Application/Mappings/MappingConfig.cs",
+              "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+              "NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs",
+              "NexusReader.Application/Queries/Library/GetMyEbooksQuery.cs",
+              "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
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+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
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+              "NexusReader.Application/Queries/Reader/GetReaderPageQueryHandler.cs",
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+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_knowledge_graph_retrieval",
+            "name": "Knowledge graph retrieval",
+            "description": "Knowledge graph retrieval coordinates 3 business-relevant steps beginning at NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs.",
+            "domainIds": [
+              "ai",
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+              "ai_tokens",
+              "ai_verification",
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+              "billing",
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+              "chapter_readerpage",
+              "citation",
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+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
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+              "library_question",
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+              "metadata",
+              "nexususer",
+              "nexususer_identity",
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+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_knowledge_graph_retrieval"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_quiz_answer_submission",
+            "name": "Quiz answer submission",
+            "description": "Quiz answer submission coordinates 3 business-relevant steps beginning at NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs.",
+            "domainIds": [
+              "ai",
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+              "citation",
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+              "contentblock",
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+              "cosinedistance",
+              "coverimage",
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+              "ebook",
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+              "ebooks_lastreadbook",
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+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
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+              "nexususer",
+              "nexususer_identity",
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+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_quiz_answer_submission"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) coordinates 8 business-relevant steps beginning at NexusReader.Web/Program.cs.",
+            "domainIds": [
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+              "graph",
+              "graphdata",
+              "graphlink",
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+              "groundedresponse",
+              "identity_authenticationstateprovider",
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+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
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+              "readerpage",
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+              "real_time_sync",
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+              "result",
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+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
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+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_program_top_level"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized coordinates 4 business-relevant steps beginning at NexusReader.Web/Program.cs.",
+            "domainIds": [
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+              "ai_tokens",
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+              "citation",
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+              "device_sync_broadcast",
+              "ebook",
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+              "ebooks_lastreadbook",
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+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
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+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
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+              "quiz_state",
+              "quizquestion",
+              "quizresults",
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+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_ensure_database_initialized"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success coordinates 4 business-relevant steps beginning at NexusReader.Web/Program.cs.",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
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+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
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+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
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+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
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+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [
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+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          }
+        ],
+        "flows": [
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+            "capabilityId": "capability_wasm_client_startup_and_di_validation",
+            "domainIds": [
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+              "groundedness",
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+              "identity_authenticationstateprovider",
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+              "knowledge",
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+              "knowledge_graph",
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+              "knowledgelink",
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+              "quizquestion",
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+              "real_time_sync_broadcast",
+              "result",
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+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
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+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
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+            "entrypointPaths": [
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+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
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+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_entry",
+                "label": "Enter Program (top level startup)",
+                "kind": "processing",
+                "evidencePaths": [
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+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingdbcontextfactory_ctor_49",
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+                "kind": "processing",
+                "evidencePaths": [
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+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingembeddinggenerator_ctor_50",
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+                "evidencePaths": [
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+                  "self"
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+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingbookstorageservice_ctor_51",
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+                "evidencePaths": [
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+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingebookrepository_ctor_52",
+                "label": "Call Throwing Ebook Repository.",
+                "kind": "processing",
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+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingsyncbroadcaster_ctor_53",
+                "label": "Call Throwing Sync Broadcaster.",
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+                "evidencePaths": [
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+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_nexusreader_application_addapplication_55",
+                "label": "Call Add Application",
+                "kind": "processing",
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+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_result",
+                "label": "Complete Program (top level startup)",
+                "kind": "result",
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+                  "self"
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+              }
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+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_maui_app_composition_and_handler_discovery",
+            "name": "MAUI app composition and handler discovery",
+            "description": "MAUI app composition and handler discovery starts at NexusReader.Maui/MauiProgram.cs and follows 4 grounded steps: Enter Create Maui App -> Returns result -> Call Add Application -> Call Dependency Injection.",
+            "capabilityId": "capability_maui_app_composition_and_handler_discovery",
+            "domainIds": [
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+              "ai_tokens",
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+              "ebooks_lastreadbook",
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+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
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+              "identity_authenticationstateprovider",
+              "ingestion_progress",
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+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_entry",
+                "label": "Enter Create Maui App",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_createmauiapp_return_57_0",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_nexusreader_application_addapplication_51",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_nexusreader_application_dependencyinjection_assembly_54",
+                "label": "Call Dependency Injection",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "low",
+            "unknowns": []
+          },
+          {
+            "id": "flow_web_minimal_api_application_handler_dispatch",
+            "name": "Web Minimal API → Application handler dispatch",
+            "description": "Web Minimal API → Application handler dispatch starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_web_minimal_api_application_handler_dispatch",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
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+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_ebook_ingestion",
+            "name": "Ebook ingestion",
+            "description": "Ebook ingestion starts at NexusReader.Application/Commands/Library/IngestEbookCommand.cs and follows 5 grounded steps: API constructs Ingest Ebook Command with metadata and EPUB payload -> Mediator dispatches to Ingest Ebook Command Handler -> Handler stores binary assets via IBook Storage Service -> Handler maps DTO to domain entities (Mapster) and persists via IEbook Repository/App Db Context -> ....",
+            "capabilityId": "capability_ebook_ingestion",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "ebook_ingestion_1",
+                "label": "API constructs Ingest Ebook Command with metadata and EPUB payload",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "ebook_ingestion_2",
+                "label": "Mediator dispatches to Ingest Ebook Command Handler",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "ebook_ingestion_3",
+                "label": "Handler stores binary assets via IBook Storage Service",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "ebook_ingestion_4",
+                "label": "Handler maps DTO to domain entities (Mapster) and persists via IEbook Repository/App Db Context",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "ebook_ingestion_5",
+                "label": "Post persist: enqueue/trigger semantic indexing and AI groundedness verification jobs; return created Ebook Id",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_semantic_search_library_qa",
+            "name": "Semantic search / Library QA",
+            "description": "Semantic search / Library QA starts at NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs and follows 8 grounded steps: Enter Handle -> Evaluates branch condition -> Returns result -> Reads repository or persistence state -> ....",
+            "capabilityId": "capability_semantic_search_library_qa",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+              "NexusReader.Data.Persistence/AppDbContext.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_application_queries_library_searchlibrarysemanticallyquery_cs_handle_entry",
+                "label": "Enter Handle",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+                  "NexusReader.Data.Persistence/AppDbContext.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_queries_library_searchlibrarysemanticallyquery_cs_handle_handle_branch_43_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_queries_library_searchlibrarysemanticallyquery_cs_handle_handle_return_45_1",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_queries_library_searchlibrarysemanticallyquery_cs_handle_handle_repository_read_55_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_queries_library_searchlibrarysemanticallyquery_cs_handle_return_61",
+                "label": "Return mapped results",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_queries_library_searchlibrarysemanticallyquery_cs_handle_nexusreader_data_persistence_appdbcontext_cs_semanticknowledgecache_54",
+                "label": "Call Semantic Knowledge Cache",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+                  "NexusReader.Data.Persistence/AppDbContext.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_queries_library_searchlibrarysemanticallyquery_cs_handle_external_call",
+                "label": "Calls IEmbeddingGenerator.GenerateAsync with the request.QueryText (external/AI service)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_queries_library_searchlibrarysemanticallyquery_cs_handle_persistence_read",
+                "label": ".Where(c => c.TenantId == request.TenantId && c.Embedding != null)",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+              "NexusReader.Data.Persistence/AppDbContext.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_ai_groundedness_verification",
+            "name": "AI groundedness verification",
+            "description": "AI groundedness verification starts at NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs and follows 5 grounded steps: Enter Handle -> Returns result -> Returns service result directly -> Call Verify Groundedness Async -> ....",
+            "capabilityId": "capability_ai_groundedness_verification",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+              "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
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+              {
+                "id": "nexusreader_application_commands_ai_verifygroundednesscommand_cs_handle_entry",
+                "label": "Enter Handle",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+                  "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"
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+              {
+                "id": "nexusreader_application_commands_ai_verifygroundednesscommand_cs_handle_handle_return_20_0",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_ai_verifygroundednesscommand_cs_handle_return_20",
+                "label": "Returns service result directly",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_ai_verifygroundednesscommand_cs_handle_nexusreader_application_abstractions_services_iknowledgeservice_cs_verifygroundednessasync_20",
+                "label": "Call Verify Groundedness Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+                  "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_ai_verifygroundednesscommand_cs_handle_external_call",
+                "label": "await _knowledgeService.VerifyGroundednessAsync(...)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+              "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "low",
+            "unknowns": []
+          },
+          {
+            "id": "flow_reader_page_retrieval_and_progress_sync",
+            "name": "Reader page retrieval and progress sync",
+            "description": "Reader page retrieval and progress sync starts at NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs and follows 5 grounded steps: Client requests Get Reader Page Query or sends Update Reading Progress Command -> Get Reader Page Query Handler uses IEpub Reader and Mapster to build Reader Page View Model -> Update Reading Progress Command Handler updates progress via App Db Context -> Update Reading Progress Command Handler broadcasts updates via ISync Broadcaster to other clients (excluding origin) -> ....",
+            "capabilityId": "capability_reader_page_retrieval_and_progress_sync",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "reader_page_retrieval_and_progress_sync_1",
+                "label": "Client requests Get Reader Page Query or sends Update Reading Progress Command",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "reader_page_retrieval_and_progress_sync_2",
+                "label": "Get Reader Page Query Handler uses IEpub Reader and Mapster to build Reader Page View Model",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "reader_page_retrieval_and_progress_sync_3",
+                "label": "Update Reading Progress Command Handler updates progress via App Db Context",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "reader_page_retrieval_and_progress_sync_4",
+                "label": "Update Reading Progress Command Handler broadcasts updates via ISync Broadcaster to other clients (excluding origin)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "reader_page_retrieval_and_progress_sync_5",
+                "label": "Handlers return Fluent Results wrapped DTOs or status",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_knowledge_graph_retrieval",
+            "name": "Knowledge graph retrieval",
+            "description": "Knowledge graph retrieval starts at NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs and follows 3 grounded steps: Get Knowledge Graph Query dispatched -> Handler delegates to IKnowledge Service to build/assemble graph data -> Graph Data Dto mapped and returned (JSON source gen used for serialization).",
+            "capabilityId": "capability_knowledge_graph_retrieval",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "knowledge_graph_retrieval_1",
+                "label": "Get Knowledge Graph Query dispatched",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "knowledge_graph_retrieval_2",
+                "label": "Handler delegates to IKnowledge Service to build/assemble graph data",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "knowledge_graph_retrieval_3",
+                "label": "Graph Data Dto mapped and returned (JSON source gen used for serialization)",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.875,
+            "evidencePaths": [
+              "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "medium",
+            "unknowns": []
+          },
+          {
+            "id": "flow_quiz_answer_submission",
+            "name": "Quiz answer submission",
+            "description": "Quiz answer submission starts at NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs and follows 7 grounded steps: Enter Handle -> Evaluates branch condition -> Return success Result -> Returns result -> ....",
+            "capabilityId": "capability_quiz_answer_submission",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_application_commands_quiz_submitanswercommandhandler_cs_handle_entry",
+                "label": "Enter Handle",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_quiz_submitanswercommandhandler_cs_handle_handle_branch_18_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_quiz_submitanswercommandhandler_cs_handle_return_21",
+                "label": "Return success Result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_quiz_submitanswercommandhandler_cs_handle_handle_return_21_1",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_quiz_submitanswercommandhandler_cs_handle_return_24",
+                "label": "Return failure Result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_quiz_submitanswercommandhandler_cs_handle_nexusreader_application_abstractions_services_vibrateasync_20",
+                "label": "Call Vibrate Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_quiz_submitanswercommandhandler_cs_handle_external_call",
+                "label": "await _platformService.VibrateAsync(50)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "medium",
+            "unknowns": []
+          },
+          {
+            "id": "flow_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_program_top_level",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ensure_database_initialized",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
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+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_handle_subscription_success",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
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+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
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+            "evidencePaths": [
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+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          }
+        ],
+        "generatedFrom": {
+          "contextBagId": "application_layer_md",
+          "summaryCount": 40,
+          "dataFlowCount": 12,
+          "artifactStrategy": "structured-artifacts-first",
+          "semanticChunkCount": 8,
+          "chunkingIssueCodes": [
+            "split-contract-family",
+            "split-event-flow"
+          ],
+          "targetedRereadCount": 0,
+          "targetedRereadPaths": []
+        },
+        "gaps": [
+          {
+            "id": "low_confidence_flow_flow_maui_app_composition_and_handler_discovery",
+            "code": "low-confidence-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_maui_app_composition_and_handler_discovery",
+            "message": "Business flow MAUI app composition and handler discovery remains low confidence.",
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ]
+          },
+          {
+            "id": "low_confidence_flow_flow_ai_groundedness_verification",
+            "code": "low-confidence-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_ai_groundedness_verification",
+            "message": "Business flow AI groundedness verification remains low confidence.",
+            "evidencePaths": [
+              "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+              "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ]
+          },
+          {
+            "id": "ambiguous_business_flow_flow_web_minimal_api_application_handler_dispatch",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_web_minimal_api_application_handler_dispatch",
+            "message": "Business flow Web Minimal API → Application handler dispatch is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ]
+          },
+          {
+            "id": "ambiguous_business_flow_flow_program_top_level",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_program_top_level",
+            "message": "Business flow Program (top level) is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ]
+          }
+        ],
+        "unknowns": [
+          "Semantic cross-reference chunking raised 2 continuity warning(s)."
+        ]
+      },
+      "rankedFlows": [
+        {
+          "flowId": "flow_ai_groundedness_verification",
+          "name": "AI groundedness verification",
+          "rank": 1,
+          "score": 0.875,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.76,
+            "architectureCoverage": 0.75,
+            "executionTruth": 0.98,
+            "userComprehension": 0.9
+          },
+          "reason": "Ranked because AI groundedness verification combines business value 0.95, evidence strength 0.76, architecture coverage 0.75, execution truth 0.98, and comprehension 0.90 for a total score of 0.88.",
+          "evidencePaths": [
+            "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+            "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "low"
+        },
+        {
+          "flowId": "flow_ensure_database_initialized",
+          "name": "Ensure Database Initialized",
+          "rank": 2,
+          "score": 0.873,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.85,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Ensure Database Initialized combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_handle_subscription_success",
+          "name": "Handle Subscription Success",
+          "rank": 3,
+          "score": 0.873,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.85,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Handle Subscription Success combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_program_top_level",
+          "name": "Program (top level)",
+          "rank": 4,
+          "score": 0.873,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.85,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Program (top level) combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_web_minimal_api_application_handler_dispatch",
+          "name": "Web Minimal API → Application handler dispatch",
+          "rank": 5,
+          "score": 0.873,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.85,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Web Minimal API → Application handler dispatch combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_semantic_search_library_qa",
+          "name": "Semantic search / Library QA",
+          "rank": 6,
+          "score": 0.858,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.85,
+            "architectureCoverage": 0.917,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Semantic search / Library QA combines business value 0.95, evidence strength 0.85, architecture coverage 0.92, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+            "NexusReader.Data.Persistence/AppDbContext.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_ebook_ingestion",
+          "name": "Ebook ingestion",
+          "rank": 7,
+          "score": 0.854,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 1,
+            "architectureCoverage": 0.833,
+            "executionTruth": 0.66,
+            "userComprehension": 0.82
+          },
+          "reason": "Ranked because Ebook ingestion combines business value 0.95, evidence strength 1.00, architecture coverage 0.83, execution truth 0.66, and comprehension 0.82 for a total score of 0.85.",
+          "evidencePaths": [
+            "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_quiz_answer_submission",
+          "name": "Quiz answer submission",
+          "rank": 8,
+          "score": 0.854,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.794,
+            "architectureCoverage": 0.833,
+            "executionTruth": 1,
+            "userComprehension": 0.42
+          },
+          "reason": "Ranked because Quiz answer submission combines business value 0.95, evidence strength 0.79, architecture coverage 0.83, execution truth 1.00, and comprehension 0.42 for a total score of 0.85.",
+          "evidencePaths": [
+            "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+            "NexusReader.Application.Abstractions.Services",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "medium"
+        },
+        {
+          "flowId": "flow_reader_page_retrieval_and_progress_sync",
+          "name": "Reader page retrieval and progress sync",
+          "rank": 9,
+          "score": 0.72,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 1,
+            "architectureCoverage": 0.75,
+            "executionTruth": 0.18,
+            "userComprehension": 0.82
+          },
+          "reason": "Ranked because Reader page retrieval and progress sync combines business value 0.95, evidence strength 1.00, architecture coverage 0.75, execution truth 0.18, and comprehension 0.82 for a total score of 0.72.",
+          "evidencePaths": [
+            "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_maui_app_composition_and_handler_discovery",
+          "name": "MAUI app composition and handler discovery",
+          "rank": 10,
+          "score": 0.683,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.76,
+            "architectureCoverage": 0.667,
+            "executionTruth": 0.37,
+            "userComprehension": 0.66
+          },
+          "reason": "Ranked because MAUI app composition and handler discovery combines business value 0.95, evidence strength 0.76, architecture coverage 0.67, execution truth 0.37, and comprehension 0.66 for a total score of 0.68.",
+          "evidencePaths": [
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Application",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "low"
+        },
+        {
+          "flowId": "flow_knowledge_graph_retrieval",
+          "name": "Knowledge graph retrieval",
+          "rank": 11,
+          "score": 0.671,
+          "scoreBreakdown": {
+            "businessValue": 0.875,
+            "evidenceStrength": 0.88,
+            "architectureCoverage": 0.75,
+            "executionTruth": 0.36,
+            "userComprehension": 0.34
+          },
+          "reason": "Ranked because Knowledge graph retrieval combines business value 0.88, evidence strength 0.88, architecture coverage 0.75, execution truth 0.36, and comprehension 0.34 for a total score of 0.67.",
+          "evidencePaths": [
+            "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "medium"
+        },
+        {
+          "flowId": "flow_wasm_client_startup_and_di_validation",
+          "name": "WASM client startup and DI validation",
+          "rank": 12,
+          "score": 0.566,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.775,
+            "architectureCoverage": 0.667,
+            "executionTruth": 0.11,
+            "userComprehension": 0.1
+          },
+          "reason": "Ranked because WASM client startup and DI validation combines business value 0.95, evidence strength 0.78, architecture coverage 0.67, execution truth 0.11, and comprehension 0.10 for a total score of 0.57.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Program.cs",
+            "self",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "high"
+        }
+      ],
+      "validation": {
+        "status": "warn",
+        "coverage": {
+          "totalDomains": 87,
+          "coveredDomains": 87,
+          "totalCapabilities": 12,
+          "coveredCapabilities": 12,
+          "totalFlows": 12,
+          "coveredFlows": 12
+        },
+        "issueCount": 2,
+        "issues": [
+          {
+            "code": "low-flow-confidence",
+            "severity": "warn",
+            "documentFilename": "application-layer.md",
+            "targetType": "flow",
+            "targetId": "flow_maui_app_composition_and_handler_discovery",
+            "message": "Business flow MAUI app composition and handler discovery is low confidence.",
+            "evidenceCount": 5,
+            "confidence": "low"
+          },
+          {
+            "code": "low-flow-confidence",
+            "severity": "warn",
+            "documentFilename": "application-layer.md",
+            "targetType": "flow",
+            "targetId": "flow_ai_groundedness_verification",
+            "message": "Business flow AI groundedness verification is low confidence.",
+            "evidenceCount": 6,
+            "confidence": "low"
+          }
+        ]
+      }
+    },
+    {
+      "documentFilename": "business-overview.md",
+      "documentTitle": "Business Overview",
+      "relativeOutputPath": "business/business-overview.md",
+      "collectionKind": "business",
+      "publicationTier": "primary",
+      "businessModel": {
+        "documentFilename": "business-overview.md",
+        "documentTitle": "Business Overview",
+        "summary": "Business Overview centers on account, ai token usage / limits, ai tokens and currently highlights Authentication (Login/Register) Flow as the most representative business flow.",
+        "domains": [
+          {
+            "id": "account",
+            "name": "account",
+            "description": "Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ai_token_usage_limits",
+            "name": "ai token usage / limits",
+            "description": "Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.UI.Shared/Pages/Account/Profile.razor"
+            ],
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Pages/Account/Profile.razor"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ai_tokens",
+            "name": "ai tokens",
+            "description": "Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/Security/Authorization/ProUserRequirement.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Security/Authorization/ProUserRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ai_tokens_aitokensused_aitokenlimit",
+            "name": "ai tokens (aitokensused, aitokenlimit)",
+            "description": "Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "auth",
+            "name": "auth",
+            "description": "Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "authentication",
+            "name": "authentication",
+            "description": "Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "NexusReader.UI.Shared/Pages/Account/Login.razor",
+              "NexusReader.UI.Shared/Pages/Account/Register.razor"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "NexusReader.UI.Shared/Pages/Account/Login.razor",
+              "NexusReader.UI.Shared/Pages/Account/Register.razor"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "author",
+            "name": "author",
+            "description": "Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Application/DTOs/User/AuthorDto.cs",
+              "NexusReader.Domain/Entities/Author.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Application/DTOs/User/AuthorDto.cs",
+              "NexusReader.Domain/Entities/Author.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "authorization_policy",
+            "name": "authorization policy",
+            "description": "Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/Security/Authorization/ProUserRequirement.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Security/Authorization/ProUserRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "command",
+            "name": "command",
+            "description": "Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "cookie_based_sign_in",
+            "name": "cookie based sign in",
+            "description": "Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.UI.Shared/Pages/Account/Register.razor"
+            ],
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Pages/Account/Register.razor"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ebook",
+            "name": "ebook",
+            "description": "Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Domain/Entities/Author.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Domain/Entities/Author.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ebook_epub_ingestion",
+            "name": "ebook / epub ingestion",
+            "description": "Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "embedding",
+            "name": "embedding",
+            "description": "Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "external_google_login",
+            "name": "external (google) login",
+            "description": "Business Overview is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
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+          },
+          {
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+            "steps": [
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_entry",
+                "label": "Enter Handle Login",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor",
+                  "NexusReader.UI.Shared/Services/IIdentityService.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_handlelogin_fallback_139_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_handlelogin_branch_134_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_handlelogin_repository_read_141_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_nexusreader_ui_shared_services_iidentityservice_cs_loginasync_133",
+                "label": "Call Login Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor",
+                  "NexusReader.UI.Shared/Services/IIdentityService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_unknown_nexusauth_submitloginform_js_via_ijsruntime_137",
+                "label": "Call nexus Auth",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_external_call",
+                "label": "await IdentityService.LoginAsync(...)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_persistence_read",
+                "label": "_errorMessage = result.Errors.FirstOrDefault()?.Message ?? \"Nieprawidłowy e-mail lub hasło.\";",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_result",
+                "label": "Complete Handle Login",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor",
+                  "NexusReader.UI.Shared/Services/IIdentityService.cs",
+                  "unknown"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Pages/Account/Login.razor",
+              "NexusReader.UI.Shared/Services/IIdentityService.cs",
+              "unknown",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_http_request_token_refresh_flow",
+            "name": "HTTP Request + Token Refresh Flow",
+            "description": "HTTP Request + Token Refresh Flow starts at NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs and follows 12 grounded steps: Enter Send Async -> Falls back to alternate path -> Calls external dependency -> Evaluates branch condition -> ....",
+            "capabilityId": "capability_http_request_token_refresh_flow",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_entry",
+                "label": "Enter Send Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "self",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_fallback_73_6",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_external_call_27_0",
+                "label": "Calls external dependency",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_branch_45_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_return_95_11",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_return_109",
+                "label": "Return response",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_self_clonehttprequestmessageasync_93",
+                "label": "Call Clone Http Request Message Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_getsecurestring_47",
+                "label": "Call Get Secure String",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_refreshtokenasync_78",
+                "label": "Call Refresh Token Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_logoutasync_87",
+                "label": "Call Logout Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
+                "label": "protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
+                "label": "var response = await base.SendAsync(request, cancellationToken);",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_knowledge_query_api_flow",
+            "name": "Knowledge Query API Flow",
+            "description": "Knowledge Query API Flow starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_knowledge_query_api_flow",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_program_top_level",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ensure_database_initialized",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_handle_subscription_success",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          }
+        ],
+        "generatedFrom": {
+          "contextBagId": "business_overview_md",
+          "summaryCount": 15,
+          "dataFlowCount": 6,
+          "artifactStrategy": "structured-artifacts-first",
+          "semanticChunkCount": 1,
+          "chunkingIssueCodes": [],
+          "targetedRereadCount": 0,
+          "targetedRereadPaths": []
+        },
+        "gaps": [
+          {
+            "id": "ambiguous_business_flow_flow_http_request_token_refresh_flow",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_http_request_token_refresh_flow",
+            "message": "Business flow HTTP Request + Token Refresh Flow is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ]
+          },
+          {
+            "id": "ambiguous_business_flow_flow_knowledge_query_api_flow",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_knowledge_query_api_flow",
+            "message": "Business flow Knowledge Query API Flow is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ]
+          }
+        ],
+        "unknowns": []
+      },
+      "rankedFlows": [
+        {
+          "flowId": "flow_authentication_login_register_flow",
+          "name": "Authentication (Login/Register) Flow",
+          "rank": 1,
+          "score": 0.861,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.8,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Authentication (Login/Register) Flow combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Account/Login.razor",
+            "NexusReader.UI.Shared/Services/IIdentityService.cs",
+            "unknown",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_ensure_database_initialized",
+          "name": "Ensure Database Initialized",
+          "rank": 2,
+          "score": 0.861,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.8,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Ensure Database Initialized combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_handle_subscription_success",
+          "name": "Handle Subscription Success",
+          "rank": 3,
+          "score": 0.861,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.8,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Handle Subscription Success combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_knowledge_query_api_flow",
+          "name": "Knowledge Query API Flow",
+          "rank": 4,
+          "score": 0.861,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.8,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Knowledge Query API Flow combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_program_top_level",
+          "name": "Program (top level)",
+          "rank": 5,
+          "score": 0.861,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.8,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Program (top level) combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_http_request_token_refresh_flow",
+          "name": "HTTP Request + Token Refresh Flow",
+          "rank": 6,
+          "score": 0.825,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.7,
+            "architectureCoverage": 0.917,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because HTTP Request + Token Refresh Flow combines business value 0.95, evidence strength 0.70, architecture coverage 0.92, execution truth 1.00, and comprehension 0.18 for a total score of 0.82.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "self",
+            "NexusReader.Application.Abstractions.Services",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high"
+        }
+      ],
+      "validation": {
+        "status": "pass",
+        "coverage": {
+          "totalDomains": 37,
+          "coveredDomains": 37,
+          "totalCapabilities": 6,
+          "coveredCapabilities": 6,
+          "totalFlows": 6,
+          "coveredFlows": 6
+        },
+        "issueCount": 0,
+        "issues": []
+      }
+    },
+    {
+      "documentFilename": "data-and-persistence.md",
+      "documentTitle": "Data Layer, EF Core and Repositories",
+      "relativeOutputPath": "domains/data-and-persistence.md",
+      "collectionKind": "domains",
+      "publicationTier": "secondary",
+      "businessModel": {
+        "documentFilename": "data-and-persistence.md",
+        "documentTitle": "Data Layer, EF Core and Repositories",
+        "summary": "Data Layer, EF Core and Repositories centers on addeddate, aitoken accounting, aitokenlimit and currently highlights WASM DI bootstrap & stub registration as the most representative business flow.",
+        "domains": [
+          {
+            "id": "addeddate",
+            "name": "addeddate",
+            "description": "Data Layer, EF Core and Repositories is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "aitoken_accounting",
+            "name": "aitoken accounting",
+            "description": "Data Layer, EF Core and Repositories is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "aitokenlimit",
+            "name": "aitokenlimit",
+            "description": "Data Layer, EF Core and Repositories is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "application_layer_integration",
+            "name": "application layer integration",
+            "description": "Data Layer, EF Core and Repositories is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/NexusReader.Web.Client.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/NexusReader.Web.Client.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "asp_net_identity",
+            "name": "asp.net identity",
+            "description": "Data Layer, EF Core and Repositories is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Data/Migrations/20260503175906_FinalNormalizedSubscriptionArchitecture.Designer.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Data/Migrations/20260503175906_FinalNormalizedSubscriptionArchitecture.Designer.cs"
+            ],
+            "confidence": "high"
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+            "confidence": "high"
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+              "NexusReader.Data/Migrations/20260429080302_AddQuizResults.cs"
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+            "evidencePaths": [
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+            "confidence": "high"
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+          {
+            "id": "user_identity",
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+            "relatedPaths": [
+              "NexusReader.Data/Migrations/20260428184727_InitialPostgres.cs"
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+            "confidence": "high"
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+            "confidence": "high"
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+            "confidence": "high"
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+              "NexusReader.Web/Program.cs"
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+              "NexusReader.Maui/MauiProgram.cs",
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+              "NexusReader.Web/Program.cs"
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+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
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+              "user_nexususer",
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+            "entrypointPaths": [
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+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
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+              "NexusReader.Web.Client/Program.cs",
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+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
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+            "description": "Program (top level) coordinates 8 business-relevant steps beginning at NexusReader.Web/Program.cs.",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_program_top_level"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized coordinates 4 business-relevant steps beginning at NexusReader.Web/Program.cs.",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_ensure_database_initialized"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success coordinates 4 business-relevant steps beginning at NexusReader.Web/Program.cs.",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_handle_subscription_success"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          }
+        ],
+        "flows": [
+          {
+            "id": "flow_wasm_di_bootstrap_stub_registration",
+            "name": "WASM DI bootstrap & stub registration",
+            "description": "WASM DI bootstrap & stub registration starts at NexusReader.Web.Client/Program.cs and follows 8 grounded steps: Enter Program (top level startup) -> Call Throwing Db Context Factory. -> Call Throwing Embedding Generator. -> Call Throwing Book Storage Service. -> ....",
+            "capabilityId": "capability_wasm_di_bootstrap_stub_registration",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_entry",
+                "label": "Enter Program (top level startup)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingdbcontextfactory_ctor_49",
+                "label": "Call Throwing Db Context Factory.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingembeddinggenerator_ctor_50",
+                "label": "Call Throwing Embedding Generator.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingbookstorageservice_ctor_51",
+                "label": "Call Throwing Book Storage Service.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingebookrepository_ctor_52",
+                "label": "Call Throwing Ebook Repository.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingsyncbroadcaster_ctor_53",
+                "label": "Call Throwing Sync Broadcaster.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_nexusreader_application_addapplication_55",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_result",
+                "label": "Complete Program (top level startup)",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_app_composition_and_maui_bootstrap",
+            "name": "App composition and MAUI bootstrap",
+            "description": "App composition and MAUI bootstrap starts at NexusReader.Maui/MauiProgram.cs and follows 4 grounded steps: Enter Create Maui App -> Returns result -> Call Add Application -> Call Dependency Injection.",
+            "capabilityId": "capability_app_composition_and_maui_bootstrap",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_entry",
+                "label": "Enter Create Maui App",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_createmauiapp_return_57_0",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_nexusreader_application_addapplication_51",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_nexusreader_application_dependencyinjection_assembly_54",
+                "label": "Call Dependency Injection",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "low",
+            "unknowns": []
+          },
+          {
+            "id": "flow_database_initialization_and_seeding_robust_startup",
+            "name": "Database initialization and seeding (robust startup)",
+            "description": "Database initialization and seeding (robust startup) starts at NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs and follows 5 grounded steps: Web app startup registers App Db Context and Db Context Factory -> Ensure Database Initialized/Db Initializer invoked (wrapped with retry/backoff) -> IDb Context Factory or scoped App Db Context used to apply pending migrations (Database -> Db Initializer performs idempotent seed: Subscription Plans, Roles, Admin user (hash via IPassword Hasher), sample Author/Ebook -> ....",
+            "capabilityId": "capability_database_initialization_and_seeding_robust_startup",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "database_initialization_and_seeding_robust_startup_1",
+                "label": "Web app startup registers App Db Context and Db Context Factory",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "database_initialization_and_seeding_robust_startup_2",
+                "label": "Ensure Database Initialized/Db Initializer invoked (wrapped with retry/backoff)",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "database_initialization_and_seeding_robust_startup_3",
+                "label": "IDb Context Factory or scoped App Db Context used to apply pending migrations (Database",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "database_initialization_and_seeding_robust_startup_4",
+                "label": "Db Initializer performs idempotent seed: Subscription Plans, Roles, Admin user (hash via IPassword Hasher), sample Author/Ebook",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "database_initialization_and_seeding_robust_startup_5",
+                "label": "Commit changes; application services rely on seeded rows",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_runtime_data_access_repositories_appdbcontext",
+            "name": "Runtime data access (repositories -> AppDbContext)",
+            "description": "Runtime data access (repositories -> AppDbContext) starts at Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs) and follows 4 grounded steps: API minimal endpoints or Mediat R handlers receive requests -> Handlers call IEbook Repository (or other repo interfaces) -> Ebook Repository uses App Db Context Db Sets to query/add/update entities and sets domain defaults (e.g -> Save Changes Async commits unit of work to database.",
+            "capabilityId": "capability_runtime_data_access_repositories_appdbcontext",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "runtime_data_access_repositories_appdbcontext_1",
+                "label": "API minimal endpoints or Mediat R handlers receive requests",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "runtime_data_access_repositories_appdbcontext_2",
+                "label": "Handlers call IEbook Repository (or other repo interfaces)",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "runtime_data_access_repositories_appdbcontext_3",
+                "label": "Ebook Repository uses App Db Context Db Sets to query/add/update entities and sets domain defaults (e.g",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "runtime_data_access_repositories_appdbcontext_4",
+                "label": "Save Changes Async commits unit of work to database",
+                "kind": "result",
+                "evidencePaths": [
+                  "Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_schema_evolution_via_ef_core_migrations",
+            "name": "Schema evolution via EF Core migrations",
+            "description": "Schema evolution via EF Core migrations starts at NexusReader.Data/Migrations and NexusReader.Data/Persistence/AppDbContextFactory.cs and follows 4 grounded steps: Developers scaffold migrations using dotnet ef which uses App Db Context Factory to build model -> Migration classes (.cs and .Designer -> Apply migrations via dotnet ef or let app call Database -> Schema evolves (initial schema  > quiz results  > author normalization  > ebook progress/flags/description  > knowledge unit FK fixes  > normalized subscription changes) and seed data updated.",
+            "capabilityId": "capability_schema_evolution_via_ef_core_migrations",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Data/Migrations and NexusReader.Data/Persistence/AppDbContextFactory.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "schema_evolution_via_ef_core_migrations_1",
+                "label": "Developers scaffold migrations using dotnet ef which uses App Db Context Factory to build model",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Data/Migrations and NexusReader.Data/Persistence/AppDbContextFactory.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "schema_evolution_via_ef_core_migrations_2",
+                "label": "Migration classes (.cs and .Designer",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Data/Migrations and NexusReader.Data/Persistence/AppDbContextFactory.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "schema_evolution_via_ef_core_migrations_3",
+                "label": "Apply migrations via dotnet ef or let app call Database",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Data/Migrations and NexusReader.Data/Persistence/AppDbContextFactory.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "schema_evolution_via_ef_core_migrations_4",
+                "label": "Schema evolves (initial schema  > quiz results  > author normalization  > ebook progress/flags/description  > knowledge unit FK fixes  > normalized subscription changes) and seed data updated",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Data/Migrations and NexusReader.Data/Persistence/AppDbContextFactory.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              }
+            ],
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+            "evidencePaths": [
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+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_provider_aware_query_and_provider_specific_features",
+            "name": "Provider-aware query and provider-specific features",
+            "description": "Provider-aware query and provider-specific features starts at NexusReader.Infrastructure/Persistence/EbookRepository.cs and NexusReader.Data/Persistence/AppDbContext.cs and follows 3 grounded steps: Repository query logic detects database provider (e.g -> Uses EF.Functions -> App Db Context configures pgvector extension and vector columns/indexes when Postgres provider is selected.",
+            "capabilityId": "capability_provider_aware_query_and_provider_specific_features",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs and NexusReader.Data/Persistence/AppDbContext.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "provider_aware_query_and_provider_specific_features_1",
+                "label": "Repository query logic detects database provider (e.g",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs and NexusReader.Data/Persistence/AppDbContext.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "provider_aware_query_and_provider_specific_features_2",
+                "label": "Uses EF.Functions",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs and NexusReader.Data/Persistence/AppDbContext.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "provider_aware_query_and_provider_specific_features_3",
+                "label": "App Db Context configures pgvector extension and vector columns/indexes when Postgres provider is selected",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs and NexusReader.Data/Persistence/AppDbContext.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.885,
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs and NexusReader.Data/Persistence/AppDbContext.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "medium",
+            "unknowns": []
+          },
+          {
+            "id": "flow_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_program_top_level",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ensure_database_initialized",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_handle_subscription_success",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          }
+        ],
+        "generatedFrom": {
+          "contextBagId": "data_and_persistence_md",
+          "summaryCount": 38,
+          "dataFlowCount": 9,
+          "artifactStrategy": "structured-artifacts-first",
+          "semanticChunkCount": 7,
+          "chunkingIssueCodes": [
+            "split-contract-family"
+          ],
+          "targetedRereadCount": 0,
+          "targetedRereadPaths": []
+        },
+        "gaps": [
+          {
+            "id": "low_confidence_flow_flow_app_composition_and_maui_bootstrap",
+            "code": "low-confidence-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_app_composition_and_maui_bootstrap",
+            "message": "Business flow App composition and MAUI bootstrap remains low confidence.",
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ]
+          },
+          {
+            "id": "ambiguous_business_flow_flow_program_top_level",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_program_top_level",
+            "message": "Business flow Program (top level) is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ]
+          },
+          {
+            "id": "ambiguous_business_flow_flow_ensure_database_initialized",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_ensure_database_initialized",
+            "message": "Business flow Ensure Database Initialized is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ]
+          }
+        ],
+        "unknowns": [
+          "Semantic cross-reference chunking raised 1 continuity warning(s)."
+        ]
+      },
+      "rankedFlows": [
+        {
+          "flowId": "flow_ensure_database_initialized",
+          "name": "Ensure Database Initialized",
+          "rank": 1,
+          "score": 0.873,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.85,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Ensure Database Initialized combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_handle_subscription_success",
+          "name": "Handle Subscription Success",
+          "rank": 2,
+          "score": 0.873,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.85,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Handle Subscription Success combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_program_top_level",
+          "name": "Program (top level)",
+          "rank": 3,
+          "score": 0.873,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.85,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Program (top level) combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_runtime_data_access_repositories_appdbcontext",
+          "name": "Runtime data access (repositories -> AppDbContext)",
+          "rank": 4,
+          "score": 0.841,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 1,
+            "architectureCoverage": 0.833,
+            "executionTruth": 0.67,
+            "userComprehension": 0.66
+          },
+          "reason": "Ranked because Runtime data access (repositories -> AppDbContext) combines business value 0.95, evidence strength 1.00, architecture coverage 0.83, execution truth 0.67, and comprehension 0.66 for a total score of 0.84.",
+          "evidencePaths": [
+            "Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs)",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_database_initialization_and_seeding_robust_startup",
+          "name": "Database initialization and seeding (robust startup)",
+          "rank": 5,
+          "score": 0.797,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 1,
+            "architectureCoverage": 0.833,
+            "executionTruth": 0.43,
+            "userComprehension": 0.82
+          },
+          "reason": "Ranked because Database initialization and seeding (robust startup) combines business value 0.95, evidence strength 1.00, architecture coverage 0.83, execution truth 0.43, and comprehension 0.82 for a total score of 0.80.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_schema_evolution_via_ef_core_migrations",
+          "name": "Schema evolution via EF Core migrations",
+          "rank": 6,
+          "score": 0.766,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 1,
+            "architectureCoverage": 0.833,
+            "executionTruth": 0.37,
+            "userComprehension": 0.66
+          },
+          "reason": "Ranked because Schema evolution via EF Core migrations combines business value 0.95, evidence strength 1.00, architecture coverage 0.83, execution truth 0.37, and comprehension 0.66 for a total score of 0.77.",
+          "evidencePaths": [
+            "NexusReader.Data/Migrations and NexusReader.Data/Persistence/AppDbContextFactory.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_provider_aware_query_and_provider_specific_features",
+          "name": "Provider-aware query and provider-specific features",
+          "rank": 7,
+          "score": 0.699,
+          "scoreBreakdown": {
+            "businessValue": 0.885,
+            "evidenceStrength": 0.88,
+            "architectureCoverage": 0.75,
+            "executionTruth": 0.43,
+            "userComprehension": 0.42
+          },
+          "reason": "Ranked because Provider-aware query and provider-specific features combines business value 0.89, evidence strength 0.88, architecture coverage 0.75, execution truth 0.43, and comprehension 0.42 for a total score of 0.70.",
+          "evidencePaths": [
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs and NexusReader.Data/Persistence/AppDbContext.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "medium"
+        },
+        {
+          "flowId": "flow_app_composition_and_maui_bootstrap",
+          "name": "App composition and MAUI bootstrap",
+          "rank": 8,
+          "score": 0.683,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.76,
+            "architectureCoverage": 0.667,
+            "executionTruth": 0.37,
+            "userComprehension": 0.66
+          },
+          "reason": "Ranked because App composition and MAUI bootstrap combines business value 0.95, evidence strength 0.76, architecture coverage 0.67, execution truth 0.37, and comprehension 0.66 for a total score of 0.68.",
+          "evidencePaths": [
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Application",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "low"
+        },
+        {
+          "flowId": "flow_wasm_di_bootstrap_stub_registration",
+          "name": "WASM DI bootstrap & stub registration",
+          "rank": 9,
+          "score": 0.566,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.775,
+            "architectureCoverage": 0.667,
+            "executionTruth": 0.11,
+            "userComprehension": 0.1
+          },
+          "reason": "Ranked because WASM DI bootstrap & stub registration combines business value 0.95, evidence strength 0.78, architecture coverage 0.67, execution truth 0.11, and comprehension 0.10 for a total score of 0.57.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Program.cs",
+            "self",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "high"
+        }
+      ],
+      "validation": {
+        "status": "warn",
+        "coverage": {
+          "totalDomains": 80,
+          "coveredDomains": 80,
+          "totalCapabilities": 9,
+          "coveredCapabilities": 9,
+          "totalFlows": 9,
+          "coveredFlows": 9
+        },
+        "issueCount": 1,
+        "issues": [
+          {
+            "code": "low-flow-confidence",
+            "severity": "warn",
+            "documentFilename": "data-and-persistence.md",
+            "targetType": "flow",
+            "targetId": "flow_app_composition_and_maui_bootstrap",
+            "message": "Business flow App composition and MAUI bootstrap is low confidence.",
+            "evidenceCount": 5,
+            "confidence": "low"
+          }
+        ]
+      }
+    },
+    {
+      "documentFilename": "infrastructure-services.md",
+      "documentTitle": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub",
+      "relativeOutputPath": "domains/infrastructure-services.md",
+      "collectionKind": "domains",
+      "publicationTier": "secondary",
+      "businessModel": {
+        "documentFilename": "infrastructure-services.md",
+        "documentTitle": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub",
+        "summary": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub centers on ai configuration, ai token limit, ai tokens / token limits and currently highlights Knowledge Retrieval & Caching Flow as the most representative business flow.",
+        "domains": [
+          {
+            "id": "ai_configuration",
+            "name": "ai configuration",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Configuration/AiSettings.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Configuration/AiSettings.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ai_token_limit",
+            "name": "ai token limit",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ai_tokens_token_limits",
+            "name": "ai tokens / token limits",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "auth",
+            "name": "auth",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "authentication",
+            "name": "authentication",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "authentication_identity",
+            "name": "authentication/identity",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "author",
+            "name": "author",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "authorization_policy",
+            "name": "authorization/policy",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "background_processing",
+            "name": "background processing",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "billing",
+            "name": "billing",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Services/BillingService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/BillingService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "book_ebook_file",
+            "name": "book (ebook file)",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Services/BookStorageService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/BookStorageService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "chapter_retrieval",
+            "name": "chapter retrieval",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "chapter_readingorder",
+            "name": "chapter/readingorder",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "content_normalization",
+            "name": "content normalization",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Helpers/ContentHasher.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Helpers/ContentHasher.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "contentblock_textsegmentblock_aiactiontriggerblock",
+            "name": "contentblock (textsegmentblock, aiactiontriggerblock)",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "cover_cover_image",
+            "name": "cover (cover image)",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Services/BookStorageService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/BookStorageService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "deterministic_hashing",
+            "name": "deterministic hashing",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Helpers/ContentHasher.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Helpers/ContentHasher.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "devicecontext",
+            "name": "devicecontext",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "devicetype",
+            "name": "devicetype",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "displayorientation",
+            "name": "displayorientation",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ebook",
+            "name": "ebook",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+              "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+              "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ebook_epub_ingestion",
+            "name": "ebook / epub ingestion",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ebook_processing",
+            "name": "ebook processing",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "embedding",
+            "name": "embedding",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "embeddings",
+            "name": "embeddings",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Configuration/AiSettings.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Configuration/AiSettings.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "epub",
+            "name": "epub",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "graph_relationships",
+            "name": "graph relationships",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "groundedness",
+            "name": "groundedness",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "groundedresponse",
+            "name": "groundedresponse",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "grounding_fact_checking",
+            "name": "grounding/fact checking",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "identity_authenticationstateprovider",
+            "name": "identity (authenticationstateprovider)",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "jwt",
+            "name": "jwt",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "knowledge_knowledge_service_graph_summary",
+            "name": "knowledge (knowledge service, graph, summary)",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "knowledge_graph_expansion",
+            "name": "knowledge graph expansion",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "knowledgegraph_knowledgecoordinator",
+            "name": "knowledgegraph / knowledgecoordinator",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "knowledgepacket",
+            "name": "knowledgepacket",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "knowledgeunit",
+            "name": "knowledgeunit",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "knowledgeunitlink",
+            "name": "knowledgeunitlink",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "llm_model_selection",
+            "name": "llm model selection",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Configuration/AiSettings.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Configuration/AiSettings.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "localepubmetadata",
+            "name": "localepubmetadata",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "nexususer",
+            "name": "nexususer",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Services/BillingService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/BillingService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "nexususer_identity",
+            "name": "nexususer (identity)",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "payments",
+            "name": "payments",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "productid",
+            "name": "productid",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Configuration/StripeSettings.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Configuration/StripeSettings.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "quiz_state",
+            "name": "quiz state",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "rate_size_limits_and_retry_policy",
+            "name": "rate/size limits and retry policy",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Configuration/AiSettings.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Configuration/AiSettings.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "reader_navigation",
+            "name": "reader navigation",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "readerpage",
+            "name": "readerpage",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "real_time_sync_broadcast",
+            "name": "real time sync/broadcast",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "relevantcontext",
+            "name": "relevantcontext",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "resilience_and_http_retries",
+            "name": "resilience and http retries",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "secure_client_storage",
+            "name": "secure client storage",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "semantic_embeddings_and_vector_search",
+            "name": "semantic embeddings and vector search",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "semanticsearch",
+            "name": "semanticsearch",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "stripe",
+            "name": "stripe",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Configuration/StripeSettings.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Configuration/StripeSettings.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "subscriptionplan",
+            "name": "subscriptionplan",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Infrastructure/Services/BillingService.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Infrastructure/Services/BillingService.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "sync",
+            "name": "sync",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "theme_focus_mode",
+            "name": "theme & focus mode",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "token_refresh",
+            "name": "token refresh",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "user",
+            "name": "user",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "vector_search_embeddings",
+            "name": "vector search / embeddings",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "vibration",
+            "name": "vibration",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "web_root_relative_static_asset_paths_uploads_covers",
+            "name": "web root relative static asset paths (uploads, covers)",
+            "description": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Services/BookStorageService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/BookStorageService.cs"
+            ],
+            "confidence": "high"
+          }
+        ],
+        "capabilities": [
+          {
+            "id": "capability_knowledge_retrieval_caching_flow",
+            "name": "Knowledge Retrieval & Caching Flow",
+            "description": "Knowledge Retrieval & Caching Flow coordinates 7 business-relevant steps beginning at NexusReader.Web/Program.cs.",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_identity",
+              "author",
+              "authorization_policy",
+              "background_processing",
+              "billing",
+              "book_ebook_file",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "content_normalization",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_knowledge_retrieval_caching_flow"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_epub_chapter_read_flow",
+            "name": "EPUB Chapter Read Flow",
+            "description": "EPUB Chapter Read Flow coordinates 5 business-relevant steps beginning at NexusReader.Web/Program.cs.",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_identity",
+              "author",
+              "authorization_policy",
+              "background_processing",
+              "billing",
+              "book_ebook_file",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "content_normalization",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_epub_chapter_read_flow"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_stripe_billing_webhook_flow",
+            "name": "Stripe Billing Webhook Flow",
+            "description": "Stripe Billing Webhook Flow coordinates 4 business-relevant steps beginning at NexusReader.Web/Program.cs.",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_identity",
+              "author",
+              "authorization_policy",
+              "background_processing",
+              "billing",
+              "book_ebook_file",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "content_normalization",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
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+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
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+            "supportingFlowIds": [
+              "flow_stripe_billing_webhook_flow"
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+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_token_authorization_flow",
+            "name": "Token Authorization Flow",
+            "description": "Token Authorization Flow coordinates 3 business-relevant steps beginning at NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs.",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
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+              "authentication_identity",
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+              "billing",
+              "book_ebook_file",
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+              "chapter_readingorder",
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+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
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+              "ebook",
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+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
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+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
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+              "productid",
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+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
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+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
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+            "supportingFlowIds": [
+              "flow_token_authorization_flow"
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+            "evidencePaths": [
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+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
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+            "confidence": "high"
+          },
+          {
+            "id": "capability_wasm_knowledge_client_flow",
+            "name": "WASM Knowledge Client Flow",
+            "description": "WASM Knowledge Client Flow coordinates 4 business-relevant steps beginning at NexusReader.Web.Client/Services/WasmKnowledgeService.cs.",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
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+              "devicetype",
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+              "groundedness",
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+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
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+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
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+              "productid",
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+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
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+            "entrypointPaths": [
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+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
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+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
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+            "confidence": "high"
+          },
+          {
+            "id": "capability_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) coordinates 8 business-relevant steps beginning at NexusReader.Web/Program.cs.",
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+              "ai_configuration",
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+              "contentblock_textsegmentblock_aiactiontriggerblock",
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+              "graph_relationships",
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+              "knowledgegraph_knowledgecoordinator",
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+              "knowledgeunit",
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+              "productid",
+              "quiz_state",
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+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
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+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
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+            "supportingFlowIds": [
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+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
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+            "confidence": "high"
+          },
+          {
+            "id": "capability_ensure_database_initialized",
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+              "ai_token_limit",
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+              "identity_authenticationstateprovider",
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+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
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+              "localepubmetadata",
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+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
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+              "theme_focus_mode",
+              "token_refresh",
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+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
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+            "entrypointPaths": [
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+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
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+            "supportingFlowIds": [
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+            "evidencePaths": [
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+              "NexusReader.Web.Client/Program.cs",
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+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_handle_subscription_success",
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+            "description": "Handle Subscription Success coordinates 4 business-relevant steps beginning at NexusReader.Web/Program.cs.",
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+              "ai_configuration",
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+              "identity_authenticationstateprovider",
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+              "knowledgegraph_knowledgecoordinator",
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+              "payments",
+              "productid",
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+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
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+              "resilience_and_http_retries",
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+              "theme_focus_mode",
+              "token_refresh",
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+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
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+              "NexusReader.Web.Client/Program.cs",
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+            "confidence": "high"
+          }
+        ],
+        "flows": [
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+            "id": "flow_knowledge_retrieval_caching_flow",
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+            "description": "Knowledge Retrieval & Caching Flow starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
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+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
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+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
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+              "NexusReader.Application/DependencyInjection.cs",
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+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
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+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
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+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
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+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
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+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
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+                "kind": "decision",
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+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
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+                "kind": "decision",
+                "evidencePaths": [
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+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
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+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
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+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
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+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
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+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
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+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
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+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_epub_chapter_read_flow",
+            "name": "EPUB Chapter Read Flow",
+            "description": "EPUB Chapter Read Flow starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_epub_chapter_read_flow",
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+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_stripe_billing_webhook_flow",
+            "name": "Stripe Billing Webhook Flow",
+            "description": "Stripe Billing Webhook Flow starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_stripe_billing_webhook_flow",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_identity",
+              "author",
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+              "billing",
+              "book_ebook_file",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "content_normalization",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_token_authorization_flow",
+            "name": "Token Authorization Flow",
+            "description": "Token Authorization Flow starts at NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs and follows 3 grounded steps: Protected API endpoint is decorated with policy referencing Token Limit Requirement -> Authorization subsystem invokes Token Limit Handler -> Handler uses App Db Context to load Nexus User subscription/tokens and decides success/failure.",
+            "capabilityId": "capability_token_authorization_flow",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_identity",
+              "author",
+              "authorization_policy",
+              "background_processing",
+              "billing",
+              "book_ebook_file",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "content_normalization",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "token_authorization_flow_1",
+                "label": "Protected API endpoint is decorated with policy referencing Token Limit Requirement",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              },
+              {
+                "id": "token_authorization_flow_2",
+                "label": "Authorization subsystem invokes Token Limit Handler",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              },
+              {
+                "id": "token_authorization_flow_3",
+                "label": "Handler uses App Db Context to load Nexus User subscription/tokens and decides success/failure",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.855,
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "medium",
+            "unknowns": []
+          },
+          {
+            "id": "flow_wasm_knowledge_client_flow",
+            "name": "WASM Knowledge Client Flow",
+            "description": "WASM Knowledge Client Flow starts at NexusReader.Web.Client/Services/WasmKnowledgeService.cs and follows 7 grounded steps: Enter Get Relevant Context Async -> Evaluates branch condition -> Reads repository or persistence state -> Return Ok or Fail depending on deserialization -> ....",
+            "capabilityId": "capability_wasm_knowledge_client_flow",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_identity",
+              "author",
+              "authorization_policy",
+              "background_processing",
+              "billing",
+              "book_ebook_file",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "content_normalization",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_entry",
+                "label": "Enter Get Relevant Context Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_getrelevantcontextasync_branch_42_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_getrelevantcontextasync_repository_read_45_1",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_return_45",
+                "label": "Return Ok or Fail depending on deserialization",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_getrelevantcontextasync_return_45_2",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_external_call",
+                "label": "POST /api/knowledge/relevant with { query, tenantId }",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_persistence_read",
+                "label": "return context != null ? Result.Ok(context) : Result.Fail(\"Failed to deserialize relevant context.\");",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_program_top_level",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_identity",
+              "author",
+              "authorization_policy",
+              "background_processing",
+              "billing",
+              "book_ebook_file",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "content_normalization",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ensure_database_initialized",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_identity",
+              "author",
+              "authorization_policy",
+              "background_processing",
+              "billing",
+              "book_ebook_file",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "content_normalization",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_handle_subscription_success",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_identity",
+              "author",
+              "authorization_policy",
+              "background_processing",
+              "billing",
+              "book_ebook_file",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "content_normalization",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          }
+        ],
+        "generatedFrom": {
+          "contextBagId": "infrastructure_services_md",
+          "summaryCount": 19,
+          "dataFlowCount": 8,
+          "artifactStrategy": "structured-artifacts-first",
+          "semanticChunkCount": 1,
+          "chunkingIssueCodes": [],
+          "targetedRereadCount": 0,
+          "targetedRereadPaths": []
+        },
+        "gaps": [
+          {
+            "id": "ambiguous_business_flow_flow_knowledge_retrieval_caching_flow",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_knowledge_retrieval_caching_flow",
+            "message": "Business flow Knowledge Retrieval & Caching Flow is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ]
+          },
+          {
+            "id": "ambiguous_business_flow_flow_epub_chapter_read_flow",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_epub_chapter_read_flow",
+            "message": "Business flow EPUB Chapter Read Flow is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ]
+          }
+        ],
+        "unknowns": []
+      },
+      "rankedFlows": [
+        {
+          "flowId": "flow_wasm_knowledge_client_flow",
+          "name": "WASM Knowledge Client Flow",
+          "rank": 1,
+          "score": 0.877,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.829,
+            "architectureCoverage": 0.917,
+            "executionTruth": 1,
+            "userComprehension": 0.42
+          },
+          "reason": "Ranked because WASM Knowledge Client Flow combines business value 0.95, evidence strength 0.83, architecture coverage 0.92, execution truth 1.00, and comprehension 0.42 for a total score of 0.88.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_ensure_database_initialized",
+          "name": "Ensure Database Initialized",
+          "rank": 2,
+          "score": 0.873,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.85,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Ensure Database Initialized combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_epub_chapter_read_flow",
+          "name": "EPUB Chapter Read Flow",
+          "rank": 3,
+          "score": 0.873,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.85,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because EPUB Chapter Read Flow combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_handle_subscription_success",
+          "name": "Handle Subscription Success",
+          "rank": 4,
+          "score": 0.873,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.85,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Handle Subscription Success combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_knowledge_retrieval_caching_flow",
+          "name": "Knowledge Retrieval & Caching Flow",
+          "rank": 5,
+          "score": 0.873,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.85,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Knowledge Retrieval & Caching Flow combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_program_top_level",
+          "name": "Program (top level)",
+          "rank": 6,
+          "score": 0.873,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.85,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Program (top level) combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_stripe_billing_webhook_flow",
+          "name": "Stripe Billing Webhook Flow",
+          "rank": 7,
+          "score": 0.873,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.85,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Stripe Billing Webhook Flow combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_token_authorization_flow",
+          "name": "Token Authorization Flow",
+          "rank": 8,
+          "score": 0.591,
+          "scoreBreakdown": {
+            "businessValue": 0.855,
+            "evidenceStrength": 0.88,
+            "architectureCoverage": 0.75,
+            "executionTruth": 0.06,
+            "userComprehension": 0.34
+          },
+          "reason": "Ranked because Token Authorization Flow combines business value 0.85, evidence strength 0.88, architecture coverage 0.75, execution truth 0.06, and comprehension 0.34 for a total score of 0.59.",
+          "evidencePaths": [
+            "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+          ],
+          "confidence": "medium"
+        }
+      ],
+      "validation": {
+        "status": "pass",
+        "coverage": {
+          "totalDomains": 63,
+          "coveredDomains": 63,
+          "totalCapabilities": 8,
+          "coveredCapabilities": 8,
+          "totalFlows": 8,
+          "coveredFlows": 8
+        },
+        "issueCount": 0,
+        "issues": []
+      }
+    },
+    {
+      "documentFilename": "maui-mobile.md",
+      "documentTitle": "MAUI Mobile Host: App wiring and platform services",
+      "relativeOutputPath": "domains/maui-mobile.md",
+      "collectionKind": "domains",
+      "publicationTier": "secondary",
+      "businessModel": {
+        "documentFilename": "maui-mobile.md",
+        "documentTitle": "MAUI Mobile Host: App wiring and platform services",
+        "summary": "MAUI Mobile Host: App wiring and platform services centers on android, application layer integration, auth and currently highlights MAUI App Startup Flow as the most representative business flow.",
+        "domains": [
+          {
+            "id": "android",
+            "name": "android",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "application_layer_integration",
+            "name": "application layer integration",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/NexusReader.Web.Client.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/NexusReader.Web.Client.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "auth",
+            "name": "auth",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "authentication",
+            "name": "authentication",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "author",
+            "name": "author",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "chapter_retrieval",
+            "name": "chapter retrieval",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "client_wasm",
+            "name": "client (wasm)",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/NexusReader.Web.Client.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/NexusReader.Web.Client.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "device",
+            "name": "device",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "devicecontext",
+            "name": "devicecontext",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "devicetype",
+            "name": "devicetype",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "displayorientation",
+            "name": "displayorientation",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ebook",
+            "name": "ebook",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ebook_epub_ingestion",
+            "name": "ebook / epub ingestion",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "embedding",
+            "name": "embedding",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "epub",
+            "name": "epub",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "groundedness",
+            "name": "groundedness",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "groundedresponse",
+            "name": "groundedresponse",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "haptics",
+            "name": "haptics",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "identity_authenticationstateprovider",
+            "name": "identity (authenticationstateprovider)",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ios",
+            "name": "ios",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "jwt",
+            "name": "jwt",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "knowledge_knowledge_service_graph_summary",
+            "name": "knowledge (knowledge service, graph, summary)",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "knowledgegraph_knowledgecoordinator",
+            "name": "knowledgegraph / knowledgecoordinator",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "knowledgepacket",
+            "name": "knowledgepacket",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "localepubmetadata",
+            "name": "localepubmetadata",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "maccatalyst",
+            "name": "maccatalyst",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "maui",
+            "name": "maui",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "maui_razor_components",
+            "name": "maui razor components",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/_Imports.razor"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/_Imports.razor"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "mobile",
+            "name": "mobile",
+            "description": "MAUI Mobile Host: App wiring and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
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+            "relatedPaths": [
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+            "relatedPaths": [
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+              "localepubmetadata",
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+          },
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+          },
+          {
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+          },
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+              "NexusReader.Web/Program.cs"
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+            "confidence": "high"
+          },
+          {
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+            "confidence": "high"
+          },
+          {
+            "id": "capability_ensure_database_initialized",
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+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_persistence",
+              "preferences_based_storage",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "result_wrapping_for_error_handling",
+              "secure_client_storage",
+              "secure_storage",
+              "securestorage_encrypted_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "ui_shared",
+              "vibration",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_ensure_database_initialized"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success coordinates 4 business-relevant steps beginning at NexusReader.Web/Program.cs.",
+            "domainIds": [
+              "android",
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "device",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "haptics",
+              "identity_authenticationstateprovider",
+              "ios",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "maccatalyst",
+              "maui",
+              "maui_razor_components",
+              "mobile",
+              "mobile_client_ui",
+              "nexususer_identity",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_persistence",
+              "preferences_based_storage",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "result_wrapping_for_error_handling",
+              "secure_client_storage",
+              "secure_storage",
+              "securestorage_encrypted_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "ui_shared",
+              "vibration",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_handle_subscription_success"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          }
+        ],
+        "flows": [
+          {
+            "id": "flow_maui_app_startup_flow",
+            "name": "MAUI App Startup Flow",
+            "description": "MAUI App Startup Flow starts at NexusReader.Maui/MauiProgram.cs and follows 4 grounded steps: Enter Create Maui App -> Returns result -> Call Add Application -> Call Dependency Injection.",
+            "capabilityId": "capability_maui_app_startup_flow",
+            "domainIds": [
+              "android",
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "device",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "haptics",
+              "identity_authenticationstateprovider",
+              "ios",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "maccatalyst",
+              "maui",
+              "maui_razor_components",
+              "mobile",
+              "mobile_client_ui",
+              "nexususer_identity",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_persistence",
+              "preferences_based_storage",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "result_wrapping_for_error_handling",
+              "secure_client_storage",
+              "secure_storage",
+              "securestorage_encrypted_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "ui_shared",
+              "vibration",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_entry",
+                "label": "Enter Create Maui App",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_createmauiapp_return_57_0",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_nexusreader_application_addapplication_51",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_nexusreader_application_dependencyinjection_assembly_54",
+                "label": "Call Dependency Injection",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "low",
+            "unknowns": []
+          },
+          {
+            "id": "flow_native_storage_access_flow",
+            "name": "Native Storage Access Flow",
+            "description": "Native Storage Access Flow starts at INativeStorageService (injected into consumers) and follows 3 grounded steps: Application code requests INative Storage Service via DI -> Maui Storage Service (Infrastructure.Mobile or Nexus Reader -> Results/exceptions are mapped to Fluent Results.",
+            "capabilityId": "capability_native_storage_access_flow",
+            "domainIds": [
+              "android",
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "device",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "haptics",
+              "identity_authenticationstateprovider",
+              "ios",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "maccatalyst",
+              "maui",
+              "maui_razor_components",
+              "mobile",
+              "mobile_client_ui",
+              "nexususer_identity",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_persistence",
+              "preferences_based_storage",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "result_wrapping_for_error_handling",
+              "secure_client_storage",
+              "secure_storage",
+              "securestorage_encrypted_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "ui_shared",
+              "vibration",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "INativeStorageService (injected into consumers)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "native_storage_access_flow_1",
+                "label": "Application code requests INative Storage Service via DI",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "INativeStorageService (injected into consumers)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              },
+              {
+                "id": "native_storage_access_flow_2",
+                "label": "Maui Storage Service (Infrastructure.Mobile or Nexus Reader",
+                "kind": "integration",
+                "evidencePaths": [
+                  "INativeStorageService (injected into consumers)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              },
+              {
+                "id": "native_storage_access_flow_3",
+                "label": "Results/exceptions are mapped to Fluent Results",
+                "kind": "result",
+                "evidencePaths": [
+                  "INativeStorageService (injected into consumers)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.875,
+            "evidencePaths": [
+              "INativeStorageService (injected into consumers)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "medium",
+            "unknowns": []
+          },
+          {
+            "id": "flow_platform_vibration_device_context_flow",
+            "name": "Platform Vibration / Device Context Flow",
+            "description": "Platform Vibration / Device Context Flow starts at IPlatformService (injected into UI/services) and follows 3 grounded steps: UI or service calls IPlatform Service -> Maui Platform Service translates calls to MAUI Device Info/Device Display/Haptic Feedback -> Responses mapped to application enums and returned as Fluent Results.",
+            "capabilityId": "capability_platform_vibration_device_context_flow",
+            "domainIds": [
+              "android",
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "device",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "haptics",
+              "identity_authenticationstateprovider",
+              "ios",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "maccatalyst",
+              "maui",
+              "maui_razor_components",
+              "mobile",
+              "mobile_client_ui",
+              "nexususer_identity",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_persistence",
+              "preferences_based_storage",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "result_wrapping_for_error_handling",
+              "secure_client_storage",
+              "secure_storage",
+              "securestorage_encrypted_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "ui_shared",
+              "vibration",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "IPlatformService (injected into UI/services)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "platform_vibration_device_context_flow_1",
+                "label": "UI or service calls IPlatform Service",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "IPlatformService (injected into UI/services)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              },
+              {
+                "id": "platform_vibration_device_context_flow_2",
+                "label": "Maui Platform Service translates calls to MAUI Device Info/Device Display/Haptic Feedback",
+                "kind": "integration",
+                "evidencePaths": [
+                  "IPlatformService (injected into UI/services)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              },
+              {
+                "id": "platform_vibration_device_context_flow_3",
+                "label": "Responses mapped to application enums and returned as Fluent Results",
+                "kind": "result",
+                "evidencePaths": [
+                  "IPlatformService (injected into UI/services)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.875,
+            "evidencePaths": [
+              "IPlatformService (injected into UI/services)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "medium",
+            "unknowns": []
+          },
+          {
+            "id": "flow_mobile_api_http_flow",
+            "name": "Mobile -> API HTTP Flow",
+            "description": "Mobile -> API HTTP Flow starts at HttpClient configured in NexusReader.Maui/MauiProgram.cs and follows 3 grounded steps: Maui Program configures Http Client with Base Address http://10.0.2 -> Application or UI issues HTTP requests via injected Http Client -> Requests reach development API host (emulator host routing).",
+            "capabilityId": "capability_mobile_api_http_flow",
+            "domainIds": [
+              "android",
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "device",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "haptics",
+              "identity_authenticationstateprovider",
+              "ios",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "maccatalyst",
+              "maui",
+              "maui_razor_components",
+              "mobile",
+              "mobile_client_ui",
+              "nexususer_identity",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_persistence",
+              "preferences_based_storage",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "result_wrapping_for_error_handling",
+              "secure_client_storage",
+              "secure_storage",
+              "securestorage_encrypted_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "ui_shared",
+              "vibration",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "HttpClient configured in NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "mobile_api_http_flow_1",
+                "label": "Maui Program configures Http Client with Base Address http://10.0.2",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "HttpClient configured in NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              },
+              {
+                "id": "mobile_api_http_flow_2",
+                "label": "Application or UI issues HTTP requests via injected Http Client",
+                "kind": "processing",
+                "evidencePaths": [
+                  "HttpClient configured in NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              },
+              {
+                "id": "mobile_api_http_flow_3",
+                "label": "Requests reach development API host (emulator host routing)",
+                "kind": "result",
+                "evidencePaths": [
+                  "HttpClient configured in NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.855,
+            "evidencePaths": [
+              "HttpClient configured in NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "medium",
+            "unknowns": []
+          },
+          {
+            "id": "flow_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_program_top_level",
+            "domainIds": [
+              "android",
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "device",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "haptics",
+              "identity_authenticationstateprovider",
+              "ios",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "maccatalyst",
+              "maui",
+              "maui_razor_components",
+              "mobile",
+              "mobile_client_ui",
+              "nexususer_identity",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_persistence",
+              "preferences_based_storage",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "result_wrapping_for_error_handling",
+              "secure_client_storage",
+              "secure_storage",
+              "securestorage_encrypted_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "ui_shared",
+              "vibration",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ensure_database_initialized",
+            "domainIds": [
+              "android",
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "device",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "haptics",
+              "identity_authenticationstateprovider",
+              "ios",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "maccatalyst",
+              "maui",
+              "maui_razor_components",
+              "mobile",
+              "mobile_client_ui",
+              "nexususer_identity",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_persistence",
+              "preferences_based_storage",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "result_wrapping_for_error_handling",
+              "secure_client_storage",
+              "secure_storage",
+              "securestorage_encrypted_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "ui_shared",
+              "vibration",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_handle_subscription_success",
+            "domainIds": [
+              "android",
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "device",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "haptics",
+              "identity_authenticationstateprovider",
+              "ios",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "maccatalyst",
+              "maui",
+              "maui_razor_components",
+              "mobile",
+              "mobile_client_ui",
+              "nexususer_identity",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_persistence",
+              "preferences_based_storage",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "result_wrapping_for_error_handling",
+              "secure_client_storage",
+              "secure_storage",
+              "securestorage_encrypted_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "ui_shared",
+              "vibration",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          }
+        ],
+        "generatedFrom": {
+          "contextBagId": "maui_mobile_md",
+          "summaryCount": 20,
+          "dataFlowCount": 7,
+          "artifactStrategy": "structured-artifacts-first",
+          "semanticChunkCount": 1,
+          "chunkingIssueCodes": [],
+          "targetedRereadCount": 0,
+          "targetedRereadPaths": []
+        },
+        "gaps": [
+          {
+            "id": "low_confidence_flow_flow_maui_app_startup_flow",
+            "code": "low-confidence-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_maui_app_startup_flow",
+            "message": "Business flow MAUI App Startup Flow remains low confidence.",
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ]
+          },
+          {
+            "id": "ambiguous_business_flow_flow_program_top_level",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_program_top_level",
+            "message": "Business flow Program (top level) is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ]
+          },
+          {
+            "id": "ambiguous_business_flow_flow_ensure_database_initialized",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_ensure_database_initialized",
+            "message": "Business flow Ensure Database Initialized is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ]
+          }
+        ],
+        "unknowns": []
+      },
+      "rankedFlows": [
+        {
+          "flowId": "flow_ensure_database_initialized",
+          "name": "Ensure Database Initialized",
+          "rank": 1,
+          "score": 0.873,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.85,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Ensure Database Initialized combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_handle_subscription_success",
+          "name": "Handle Subscription Success",
+          "rank": 2,
+          "score": 0.873,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.85,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Handle Subscription Success combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_program_top_level",
+          "name": "Program (top level)",
+          "rank": 3,
+          "score": 0.873,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.85,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Program (top level) combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
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+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_reading_progress_sync_signalr_mediatr_broadcaster",
+            "name": "Reading progress sync (SignalR -> MediatR -> Broadcaster)",
+            "description": "Reading progress sync (SignalR -> MediatR -> Broadcaster) coordinates 4 business-relevant steps beginning at NexusReader.Infrastructure/RealTime/SyncHub.cs.",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
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+              "ai_action",
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+              "ai_assisted_summarization",
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+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
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+              "aitoken_accounting",
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+              "application_health_readiness",
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+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
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+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
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+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
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+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
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+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
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+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
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+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_reading_progress_sync_signalr_mediatr_broadcaster"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_epub_ingestion_and_knowledge_unit_creation",
+            "name": "EPUB ingestion and knowledge-unit creation",
+            "description": "EPUB ingestion and knowledge-unit creation coordinates 4 business-relevant steps beginning at NexusReader.Infrastructure/Services/EpubReaderService.cs.",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
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+              "ai_token_limit",
+              "ai_token_limits",
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+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
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+              "ai_knowledge_microsoft_extensions_ai",
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+              "aitoken_accounting",
+              "aitokenlimit",
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+              "answer_submission",
+              "answering",
+              "application_health_readiness",
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+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
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+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
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+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
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+              "contenthash",
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+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
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+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
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+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
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+              "ebook",
+              "ebook_chapter",
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+              "ebookid",
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+              "epub",
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+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
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+              "graphlink",
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+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
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+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_epub_ingestion_and_knowledge_unit_creation"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_ui_driven_knowledge_graph_quiz_flow_client_side_coordinator",
+            "name": "UI-driven knowledge graph / quiz flow (client-side coordinator)",
+            "description": "UI-driven knowledge graph / quiz flow (client-side coordinator) coordinates 4 business-relevant steps beginning at NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs.",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_ui_driven_knowledge_graph_quiz_flow_client_side_coordinator"
+            ],
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_auth_profile_sync_and_token_lifecycle",
+            "name": "Auth / profile sync and token lifecycle",
+            "description": "Auth / profile sync and token lifecycle coordinates 4 business-relevant steps beginning at NexusReader.UI.Shared/Layout/MainHubLayout.razor -> NexusReader.Application/Queries/User/GetUserProfileQuery.cs.",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.UI.Shared/Layout/MainHubLayout.razor -> NexusReader.Application/Queries/User/GetUserProfileQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_auth_profile_sync_and_token_lifecycle"
+            ],
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Layout/MainHubLayout.razor -> NexusReader.Application/Queries/User/GetUserProfileQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_billing_webhook_and_subscription_reconciliation",
+            "name": "Billing webhook and subscription reconciliation",
+            "description": "Billing webhook and subscription reconciliation coordinates 4 business-relevant steps beginning at NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/BillingService.cs.",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
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+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
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+              "ingestion_preview",
+              "initializationstatus",
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+              "keyconcept",
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+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
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+              "knowledgeunit_vectorized_content",
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+              "knowledgeunitlink_relations",
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+              "logging_abstraction",
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+              "maccatalyst",
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+              "maui",
+              "maui_razor_components",
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+              "navigation_book_chapter_selection",
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+              "nexususer_admin",
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+              "subscriptionplan",
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+              "tenant_user_isolation",
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+              "tenant_scoping_tenantid_from_auth_claims",
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+              "ui_feedback_loading_state",
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+              "vector_search_pgvector",
+              "vector_search_embeddings",
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+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
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+              "NexusReader.Web/Program.cs"
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+              "NexusReader.Web.Client/Program.cs",
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+              "NexusReader.Web/Program.cs"
+            ],
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+          },
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+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_add_infrastructure"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized coordinates 4 business-relevant steps beginning at NexusReader.Web/Program.cs.",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_ensure_database_initialized"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          }
+        ],
+        "flows": [
+          {
+            "id": "flow_wasm_client_startup_and_di_validation",
+            "name": "WASM client startup and DI validation",
+            "description": "WASM client startup and DI validation starts at NexusReader.Web.Client/Program.cs and follows 8 grounded steps: Enter Program (top level startup) -> Call Throwing Db Context Factory. -> Call Throwing Embedding Generator. -> Call Throwing Book Storage Service. -> ....",
+            "capabilityId": "capability_wasm_client_startup_and_di_validation",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
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+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_entry",
+                "label": "Enter Program (top level startup)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingdbcontextfactory_ctor_49",
+                "label": "Call Throwing Db Context Factory.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingembeddinggenerator_ctor_50",
+                "label": "Call Throwing Embedding Generator.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingbookstorageservice_ctor_51",
+                "label": "Call Throwing Book Storage Service.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingebookrepository_ctor_52",
+                "label": "Call Throwing Ebook Repository.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingsyncbroadcaster_ctor_53",
+                "label": "Call Throwing Sync Broadcaster.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_nexusreader_application_addapplication_55",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_result",
+                "label": "Complete Program (top level startup)",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_maui_app_startup_and_composition",
+            "name": "MAUI app startup and composition",
+            "description": "MAUI app startup and composition starts at NexusReader.Maui/MauiProgram.cs and follows 4 grounded steps: Enter Create Maui App -> Returns result -> Call Add Application -> Call Dependency Injection.",
+            "capabilityId": "capability_maui_app_startup_and_composition",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
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+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
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+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_entry",
+                "label": "Enter Create Maui App",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_createmauiapp_return_57_0",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_nexusreader_application_addapplication_51",
+                "label": "Call Add Application",
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+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_nexusreader_application_dependencyinjection_assembly_54",
+                "label": "Call Dependency Injection",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              }
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+            "businessValue": 0.94,
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "low",
+            "unknowns": []
+          },
+          {
+            "id": "flow_knowledge_request_server_flow",
+            "name": "Knowledge request (server) flow",
+            "description": "Knowledge request (server) flow starts at NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs and follows 5 grounded steps: API receives knowledge request (Program -> DI resolved Knowledge Service invoked; checks cache/dedup structures -> Queries vector DB/graph and calls LLM/embedding clients with resilience and retry -> Response repaired/validated, content hashed and upserted to Db Context (Semantic Knowledge Cache/Knowledge Unit) -> ....",
+            "capabilityId": "capability_knowledge_request_server_flow",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
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+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
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+              "billing",
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+              "blazor_component_composition",
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+              "book",
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+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "knowledge_request_server_flow_1",
+                "label": "API receives knowledge request (Program",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "knowledge_request_server_flow_2",
+                "label": "DI resolved Knowledge Service invoked; checks cache/dedup structures",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "knowledge_request_server_flow_3",
+                "label": "Queries vector DB/graph and calls LLM/embedding clients with resilience and retry",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "knowledge_request_server_flow_4",
+                "label": "Response repaired/validated, content hashed and upserted to Db Context (Semantic Knowledge Cache/Knowledge Unit)",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "knowledge_request_server_flow_5",
+                "label": "Knowledge DTO returned to caller",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_reading_progress_sync_signalr_mediatr_broadcaster",
+            "name": "Reading progress sync (SignalR -> MediatR -> Broadcaster)",
+            "description": "Reading progress sync (SignalR -> MediatR -> Broadcaster) starts at NexusReader.Infrastructure/RealTime/SyncHub.cs and follows 9 grounded steps: Enter Update Progress -> Reads repository or persistence state -> Evaluates branch condition -> Call Update Reading Progress Command (ctor) -> ....",
+            "capabilityId": "capability_reading_progress_sync_signalr_mediatr_broadcaster",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_entry",
+                "label": "Enter Update Progress",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_updateprogress_repository_read_21_0",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_updateprogress_branch_22_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_updatereadingprogresscommand_ctor_24",
+                "label": "Call Update Reading Progress Command (ctor)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_external_call",
+                "label": "Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_external_call",
+                "label": "_mediator.Send(...) (MediatR)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_persistence_read",
+                "label": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_persistence_read",
+                "label": "await _mediator.Send(new UpdateReadingProgressCommand(pageId, userId, ebookId, progress, chapterTitle, chapterIndex, Context.ConnectionId));",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_result",
+                "label": "Complete Update Progress",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_epub_ingestion_and_knowledge_unit_creation",
+            "name": "EPUB ingestion and knowledge-unit creation",
+            "description": "EPUB ingestion and knowledge-unit creation starts at NexusReader.Infrastructure/Services/EpubReaderService.cs and follows 12 grounded steps: Enter Get Epub Content Async -> Repeats work over a collection or condition -> Guards early exit or rejection path -> Reads repository or persistence state -> ....",
+            "capabilityId": "capability_epub_ingestion_and_knowledge_unit_creation",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+              "unknown",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_entry",
+                "label": "Enter Get Epub Content Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+                  "unknown",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_getepubcontentasync_loop_89_10",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_getepubcontentasync_guard_clause_92_11",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_getepubcontentasync_repository_read_41_0",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_getepubcontentasync_branch_47_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_getepubcontentasync_return_49_2",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_unknown_idbcontextfactory_appdbcontext_createdbcontextasync_39",
+                "label": "Call IDb Context Factory<App Db Context>",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_unknown_dbset_ebook_firstordefaultasync_41",
+                "label": "Call Db Set<Ebook>",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_self_resolvepath_54",
+                "label": "Call Resolve Path",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_unknown_file_exists_55",
+                "label": "Call File",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_unknown_versone_epub_epubreader_openbookasync_62",
+                "label": "Call Vers One.Epub.Epub Reader",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_unknown_epubbookref_getreadingorder_63",
+                "label": "Call Epub Book Ref",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+                  "unknown"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+              "unknown",
+              "self",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_ui_driven_knowledge_graph_quiz_flow_client_side_coordinator",
+            "name": "UI-driven knowledge graph / quiz flow (client-side coordinator)",
+            "description": "UI-driven knowledge graph / quiz flow (client-side coordinator) starts at NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs and follows 11 grounded steps: Enter Handle Node Selected -> Repeats work over a collection or condition -> Evaluates branch condition -> Reads repository or persistence state -> ....",
+            "capabilityId": "capability_ui_driven_knowledge_graph_quiz_flow_client_side_coordinator",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
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+              "selection_based_interactions",
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+              "semantic_knowledge_cache",
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+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
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+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
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+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
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+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
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+            "supportingFlowIds": [],
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+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_handlenodeselected_loop_56_4",
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+              },
+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_handlenodeselected_branch_49_0",
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+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs"
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+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_handlenodeselected_repository_read_51_1",
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+                "kind": "persistence",
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+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs"
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+              },
+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_unknown_currentgraphdata_property_48",
+                "label": "Call Current Graph Data (property)",
+                "kind": "processing",
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+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
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+              },
+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_unknown_requestscrolltoblock_71",
+                "label": "Call Request Scroll To Block",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
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+              },
+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_unknown_requesthighlightblock_72",
+                "label": "Call Request Highlight Block",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
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+              },
+              {
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+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs"
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+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_persistence_read",
+                "label": "var connectedLinks = graph.Links.Where(l => l.Source == nodeId || l.Target == nodeId).ToList();",
+                "kind": "persistence",
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+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs"
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+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_persistence_read",
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+            "confidence": "high",
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+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
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+              "knowledge_integration",
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+              "knowledge_unit_link_graph_edges",
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+              "knowledge_ai_cache",
+              "knowledgegraph",
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+              "knowledgeunit",
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+                  "NexusReader.Web/Program.cs"
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+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/BillingService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "billing_webhook_and_subscription_reconciliation_1",
+                "label": "External billing webhook arrives at server host endpoint",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/BillingService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "billing_webhook_and_subscription_reconciliation_2",
+                "label": "Host invokes IBilling Service implementation in Infrastructure",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/BillingService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "billing_webhook_and_subscription_reconciliation_3",
+                "label": "Billing Service reconciles subscription state and updates domain entities via Db Context",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/BillingService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "billing_webhook_and_subscription_reconciliation_4",
+                "label": "Changes persisted and application level subscription policies (Pro User Requirement) reflect updated state",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/BillingService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
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+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_program_top_level",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
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+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
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+              "user_nexususer",
+              "user_devices",
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+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
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+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
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+            "steps": [
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+                "id": "nexusreader_web_program_cs_program_top_level_entry",
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+                "kind": "processing",
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+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
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+                ]
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+                ]
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+                ]
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+              {
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+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
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+                "kind": "persistence",
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+                ]
+              },
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+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
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+                  "NexusReader.Web/Program.cs"
+                ]
+              },
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+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_add_infrastructure",
+            "name": "Add Infrastructure",
+            "description": "Add Infrastructure starts at NexusReader.Infrastructure/DependencyInjection.cs and follows 12 grounded steps: Enter Add Infrastructure -> Falls back to alternate path -> Evaluates branch condition -> Returns IServiceCollection -> ....",
+            "capabilityId": "capability_add_infrastructure",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Infrastructure/Persistence/AppDbContext.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_entry",
+                "label": "Enter Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/Persistence/AppDbContext.cs",
+                  "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_addinfrastructure_fallback_44_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_addinfrastructure_branch_34_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_return_134",
+                "label": "Returns IServiceCollection",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_addinfrastructure_return_134_4",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_nexusreader_infrastructure_persistence_appdbcontext_cs_appdbcontext_dbcontext_36",
+                "label": "Call App Db Context (Db Context)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/Persistence/AppDbContext.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_nexusreader_infrastructure_services_knowledgeservice_cs_knowledgeservice_implementation_112",
+                "label": "Call Knowledge Service (implementation)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_nexusreader_infrastructure_services_epubreaderservice_cs_epubreaderservice_implementation_113",
+                "label": "Call Epub Reader Service (implementation)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_nexusreader_infrastructure_services_epubmetadataextractor_cs_epubmetadataextractor_implementation_114",
+                "label": "Call Epub Metadata Extractor (implementation)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_nexusreader_infrastructure_services_bookstorageservice_cs_bookstorageservice_implementation_118",
+                "label": "Call Book Storage Service (implementation)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/Services/BookStorageService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_nexusreader_infrastructure_persistence_ebookrepository_cs_ebookrepository_implementation_121",
+                "label": "Call Ebook Repository (implementation)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Infrastructure.Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_signalrsyncbroadcaster_implementation_124",
+                "label": "Call Signal RSync Broadcaster (implementation)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Infrastructure/Persistence/AppDbContext.cs",
+              "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ensure_database_initialized",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          }
+        ],
+        "generatedFrom": {
+          "contextBagId": "overview_md",
+          "summaryCount": 186,
+          "dataFlowCount": 11,
+          "artifactStrategy": "structured-artifacts-first",
+          "semanticChunkCount": 14,
+          "chunkingIssueCodes": [
+            "split-contract-family",
+            "split-event-flow"
+          ],
+          "targetedRereadCount": 0,
+          "targetedRereadPaths": []
+        },
+        "gaps": [
+          {
+            "id": "low_confidence_flow_flow_maui_app_startup_and_composition",
+            "code": "low-confidence-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_maui_app_startup_and_composition",
+            "message": "Business flow MAUI app startup and composition remains low confidence.",
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs"
+            ]
+          },
+          {
+            "id": "ambiguous_business_flow_flow_epub_ingestion_and_knowledge_unit_creation",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_epub_ingestion_and_knowledge_unit_creation",
+            "message": "Business flow EPUB ingestion and knowledge-unit creation is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+              "unknown",
+              "self",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ]
+          },
+          {
+            "id": "ambiguous_business_flow_flow_program_top_level",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_program_top_level",
+            "message": "Business flow Program (top level) is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ]
+          }
+        ],
+        "unknowns": [
+          "Semantic cross-reference chunking raised 2 continuity warning(s)."
+        ]
+      },
+      "rankedFlows": [
+        {
+          "flowId": "flow_knowledge_request_server_flow",
+          "name": "Knowledge request (server) flow",
+          "rank": 1,
+          "score": 0.921,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.88,
+            "architectureCoverage": 0.833,
+            "executionTruth": 1,
+            "userComprehension": 0.9
+          },
+          "reason": "Ranked because Knowledge request (server) flow combines business value 0.95, evidence strength 0.88, architecture coverage 0.83, execution truth 1.00, and comprehension 0.90 for a total score of 0.92.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_ensure_database_initialized",
+          "name": "Ensure Database Initialized",
+          "rank": 2,
+          "score": 0.861,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.8,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Ensure Database Initialized combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_program_top_level",
+          "name": "Program (top level)",
+          "rank": 3,
+          "score": 0.861,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.8,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Program (top level) combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_auth_profile_sync_and_token_lifecycle",
+          "name": "Auth / profile sync and token lifecycle",
+          "rank": 4,
+          "score": 0.858,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 1,
+            "architectureCoverage": 0.833,
+            "executionTruth": 0.74,
+            "userComprehension": 0.66
+          },
+          "reason": "Ranked because Auth / profile sync and token lifecycle combines business value 0.95, evidence strength 1.00, architecture coverage 0.83, execution truth 0.74, and comprehension 0.66 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Layout/MainHubLayout.razor -> NexusReader.Application/Queries/User/GetUserProfileQuery.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_reading_progress_sync_signalr_mediatr_broadcaster",
+          "name": "Reading progress sync (SignalR -> MediatR -> Broadcaster)",
+          "rank": 5,
+          "score": 0.847,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.733,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Reading progress sync (SignalR -> MediatR -> Broadcaster) combines business value 0.95, evidence strength 0.73, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.85.",
+          "evidencePaths": [
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_ui_driven_knowledge_graph_quiz_flow_client_side_coordinator",
+          "name": "UI-driven knowledge graph / quiz flow (client-side coordinator)",
+          "rank": 6,
+          "score": 0.819,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.673,
+            "architectureCoverage": 0.917,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because UI-driven knowledge graph / quiz flow (client-side coordinator) combines business value 0.95, evidence strength 0.67, architecture coverage 0.92, execution truth 1.00, and comprehension 0.18 for a total score of 0.82.",
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+            "unknown",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_billing_webhook_and_subscription_reconciliation",
+          "name": "Billing webhook and subscription reconciliation",
+          "rank": 7,
+          "score": 0.8,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 1,
+            "architectureCoverage": 0.75,
+            "executionTruth": 0.6,
+            "userComprehension": 0.58
+          },
+          "reason": "Ranked because Billing webhook and subscription reconciliation combines business value 0.95, evidence strength 1.00, architecture coverage 0.75, execution truth 0.60, and comprehension 0.58 for a total score of 0.80.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/BillingService.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_epub_ingestion_and_knowledge_unit_creation",
+          "name": "EPUB ingestion and knowledge-unit creation",
+          "rank": 8,
+          "score": 0.795,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.7,
+            "architectureCoverage": 0.917,
+            "executionTruth": 0.88,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because EPUB ingestion and knowledge-unit creation combines business value 0.95, evidence strength 0.70, architecture coverage 0.92, execution truth 0.88, and comprehension 0.18 for a total score of 0.80.",
+          "evidencePaths": [
+            "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+            "unknown",
+            "self",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_add_infrastructure",
+          "name": "Add Infrastructure",
+          "rank": 9,
+          "score": 0.779,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.7,
+            "architectureCoverage": 0.833,
+            "executionTruth": 0.88,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Add Infrastructure combines business value 0.95, evidence strength 0.70, architecture coverage 0.83, execution truth 0.88, and comprehension 0.18 for a total score of 0.78.",
+          "evidencePaths": [
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Infrastructure/Persistence/AppDbContext.cs",
+            "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_maui_app_startup_and_composition",
+          "name": "MAUI app startup and composition",
+          "rank": 10,
+          "score": 0.681,
+          "scoreBreakdown": {
+            "businessValue": 0.94,
+            "evidenceStrength": 0.76,
+            "architectureCoverage": 0.667,
+            "executionTruth": 0.37,
+            "userComprehension": 0.66
+          },
+          "reason": "Ranked because MAUI app startup and composition combines business value 0.94, evidence strength 0.76, architecture coverage 0.67, execution truth 0.37, and comprehension 0.66 for a total score of 0.68.",
+          "evidencePaths": [
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Application",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "low"
+        },
+        {
+          "flowId": "flow_wasm_client_startup_and_di_validation",
+          "name": "WASM client startup and DI validation",
+          "rank": 11,
+          "score": 0.549,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.7,
+            "architectureCoverage": 0.667,
+            "executionTruth": 0.11,
+            "userComprehension": 0.1
+          },
+          "reason": "Ranked because WASM client startup and DI validation combines business value 0.95, evidence strength 0.70, architecture coverage 0.67, execution truth 0.11, and comprehension 0.10 for a total score of 0.55.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Program.cs",
+            "self",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high"
+        }
+      ],
+      "validation": {
+        "status": "warn",
+        "coverage": {
+          "totalDomains": 327,
+          "coveredDomains": 327,
+          "totalCapabilities": 11,
+          "coveredCapabilities": 11,
+          "totalFlows": 11,
+          "coveredFlows": 11
+        },
+        "issueCount": 1,
+        "issues": [
+          {
+            "code": "low-flow-confidence",
+            "severity": "warn",
+            "documentFilename": "overview.md",
+            "targetType": "flow",
+            "targetId": "flow_maui_app_startup_and_composition",
+            "message": "Business flow MAUI app startup and composition is low confidence.",
+            "evidenceCount": 4,
+            "confidence": "low"
+          }
+        ]
+      }
+    },
+    {
+      "documentFilename": "realtime-and-sync.md",
+      "documentTitle": "Real-Time Sync, SignalR and Broadcast",
+      "relativeOutputPath": "flows/realtime-and-sync.md",
+      "collectionKind": "flows",
+      "publicationTier": "secondary",
+      "businessModel": {
+        "documentFilename": "realtime-and-sync.md",
+        "documentTitle": "Real-Time Sync, SignalR and Broadcast",
+        "summary": "Real-Time Sync, SignalR and Broadcast centers on connection/session, device sync / broadcast, ebook and currently highlights Reading Progress Sync Flow as the most representative business flow.",
+        "domains": [
+          {
+            "id": "connection_session",
+            "name": "connection/session",
+            "description": "Real-Time Sync, SignalR and Broadcast is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "device_sync_broadcast",
+            "name": "device sync / broadcast",
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+            "relatedPaths": [
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+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ebook",
+            "name": "ebook",
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+            "relatedPaths": [
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.UI.Shared/Services/SyncService.cs"
+            ],
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+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.UI.Shared/Services/SyncService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ingestion",
+            "name": "ingestion",
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+            "relatedPaths": [
+              "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
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+            "confidence": "high"
+          },
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+            "relatedPaths": [
+              "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs"
+            ],
+            "confidence": "high"
+          },
+          {
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+            "relatedPaths": [
+              "NexusReader.UI.Shared/Services/SyncService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Services/SyncService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
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+            "relatedPaths": [
+              "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "reading_progress",
+            "name": "reading progress",
+            "description": "Real-Time Sync, SignalR and Broadcast is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "readingprogress",
+            "name": "readingprogress",
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+            "relatedPaths": [
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.UI.Shared/Services/SyncService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.UI.Shared/Services/SyncService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "real_time_sync",
+            "name": "real time sync",
+            "description": "Real-Time Sync, SignalR and Broadcast is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "sync",
+            "name": "sync",
+            "description": "Real-Time Sync, SignalR and Broadcast is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+              "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+              "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "user",
+            "name": "user",
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+            "relatedPaths": [
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "user_devices",
+            "name": "user devices",
+            "description": "Real-Time Sync, SignalR and Broadcast is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "user_sessions_connected_devices",
+            "name": "user sessions / connected devices",
+            "description": "Real-Time Sync, SignalR and Broadcast is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+            ],
+            "confidence": "high"
+          }
+        ],
+        "capabilities": [
+          {
+            "id": "capability_reading_progress_sync_flow",
+            "name": "Reading Progress Sync Flow",
+            "description": "Reading Progress Sync Flow coordinates 6 business-relevant steps beginning at NexusReader.UI.Shared/Services/SyncService.cs.",
+            "domainIds": [
+              "connection_session",
+              "device_sync_broadcast",
+              "ebook",
+              "ingestion",
+              "ingestion_progress",
+              "page",
+              "progress",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
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+              "user_devices",
+              "user_sessions_connected_devices"
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+            "entrypointPaths": [
+              "NexusReader.UI.Shared/Services/SyncService.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_reading_progress_sync_flow"
+            ],
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Services/SyncService.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_cross_client_notification_flow_server_side",
+            "name": "Cross-Client Notification Flow (server-side)",
+            "description": "Cross-Client Notification Flow (server-side) coordinates 3 business-relevant steps beginning at NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs.",
+            "domainIds": [
+              "connection_session",
+              "device_sync_broadcast",
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+              "ingestion",
+              "ingestion_progress",
+              "page",
+              "progress",
+              "reading_progress",
+              "readingprogress",
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+              "user",
+              "user_devices",
+              "user_sessions_connected_devices"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_cross_client_notification_flow_server_side"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_update_progress",
+            "name": "Update Progress",
+            "description": "Update Progress coordinates 3 business-relevant steps beginning at NexusReader.Infrastructure/RealTime/SyncHub.cs.",
+            "domainIds": [
+              "connection_session",
+              "device_sync_broadcast",
+              "ebook",
+              "ingestion",
+              "ingestion_progress",
+              "page",
+              "progress",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "sync",
+              "user",
+              "user_devices",
+              "user_sessions_connected_devices"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_update_progress"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "confidence": "high"
+          }
+        ],
+        "flows": [
+          {
+            "id": "flow_reading_progress_sync_flow",
+            "name": "Reading Progress Sync Flow",
+            "description": "Reading Progress Sync Flow starts at NexusReader.UI.Shared/Services/SyncService.cs and follows 8 grounded steps: Enter Update Progress Async -> Guards early exit or rejection path -> Evaluates branch condition -> Calls external dependency -> ....",
+            "capabilityId": "capability_reading_progress_sync_flow",
+            "domainIds": [
+              "connection_session",
+              "device_sync_broadcast",
+              "ebook",
+              "ingestion",
+              "ingestion_progress",
+              "page",
+              "progress",
+              "reading_progress",
+              "readingprogress",
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+              "user",
+              "user_devices",
+              "user_sessions_connected_devices"
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+            "entrypointPaths": [
+              "NexusReader.UI.Shared/Services/SyncService.cs",
+              "self",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
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+            "steps": [
+              {
+                "id": "nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_entry",
+                "label": "Enter Update Progress Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/SyncService.cs",
+                  "self"
+                ]
+              },
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+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/SyncService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_updateprogressasync_branch_85_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/SyncService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_updateprogressasync_external_call_89_3",
+                "label": "Calls external dependency",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/SyncService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_return_100",
+                "label": "Immediate return Ok to caller",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/SyncService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_updateprogressasync_return_100_5",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/SyncService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_self_initializeasync_85",
+                "label": "Call Initialize Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/SyncService.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_external_call",
+                "label": "await _hubConnection.SendAsync(\"UpdateProgress\", pageId, ebookId, progress, chapterTitle, token);",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/SyncService.cs"
+                ]
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+            "evidencePaths": [
+              "NexusReader.UI.Shared/Services/SyncService.cs",
+              "self",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_cross_client_notification_flow_server_side",
+            "name": "Cross-Client Notification Flow (server-side)",
+            "description": "Cross-Client Notification Flow (server-side) starts at NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs and follows 10 grounded steps: Enter Handle -> Reads repository or persistence state -> Evaluates branch condition -> Returns result -> ....",
+            "capabilityId": "capability_cross_client_notification_flow_server_side",
+            "domainIds": [
+              "connection_session",
+              "device_sync_broadcast",
+              "ebook",
+              "ingestion",
+              "ingestion_progress",
+              "page",
+              "progress",
+              "reading_progress",
+              "readingprogress",
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+              "sync",
+              "user",
+              "user_devices",
+              "user_sessions_connected_devices"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+              "NexusReader.Application.Abstractions.Messaging/ISyncBroadcaster.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
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+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_entry",
+                "label": "Enter Handle",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+                  "NexusReader.Application.Abstractions.Messaging/ISyncBroadcaster.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_handle_repository_read_30_0",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_handle_branch_31_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_handle_return_33_2",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59",
+                "label": "Return success result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_broadcastprogressasync_52",
+                "label": "Call Broadcast Progress Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+                  "NexusReader.Application.Abstractions.Messaging/ISyncBroadcaster.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_external_call",
+                "label": "await _broadcaster.BroadcastProgressAsync(request.UserId, request.PageId, now, request.ExcludedConnectionId, cancellationToken)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_persistence_read",
+                "label": "var user = await context.Users.FirstOrDefaultAsync(u => u.Id == request.UserId, cancellationToken);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_persistence_read",
+                "label": "var ebook = await context.Ebooks.FirstOrDefaultAsync(e => e.Id == request.EbookId, cancellationToken);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_persistence_read",
+                "label": "await context.SaveChangesAsync(cancellationToken);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+              "NexusReader.Application.Abstractions.Messaging/ISyncBroadcaster.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_update_progress",
+            "name": "Update Progress",
+            "description": "Update Progress starts at NexusReader.Infrastructure/RealTime/SyncHub.cs and follows 9 grounded steps: Enter Update Progress -> Reads repository or persistence state -> Evaluates branch condition -> Call Update Reading Progress Command (ctor) -> ....",
+            "capabilityId": "capability_update_progress",
+            "domainIds": [
+              "connection_session",
+              "device_sync_broadcast",
+              "ebook",
+              "ingestion",
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+              "page",
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+              "user_devices",
+              "user_sessions_connected_devices"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_entry",
+                "label": "Enter Update Progress",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_updateprogress_repository_read_21_0",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_updateprogress_branch_22_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_updatereadingprogresscommand_ctor_24",
+                "label": "Call Update Reading Progress Command (ctor)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_external_call",
+                "label": "Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_external_call",
+                "label": "_mediator.Send(...) (MediatR)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_persistence_read",
+                "label": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_persistence_read",
+                "label": "await _mediator.Send(new UpdateReadingProgressCommand(pageId, userId, ebookId, progress, chapterTitle, chapterIndex, Context.ConnectionId));",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_result",
+                "label": "Complete Update Progress",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          }
+        ],
+        "generatedFrom": {
+          "contextBagId": "realtime_and_sync_md",
+          "summaryCount": 6,
+          "dataFlowCount": 3,
+          "artifactStrategy": "structured-artifacts-first",
+          "semanticChunkCount": 1,
+          "chunkingIssueCodes": [],
+          "targetedRereadCount": 0,
+          "targetedRereadPaths": []
+        },
+        "gaps": [
+          {
+            "id": "ambiguous_business_flow_flow_cross_client_notification_flow_server_side",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_cross_client_notification_flow_server_side",
+            "message": "Business flow Cross-Client Notification Flow (server-side) is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+              "NexusReader.Application.Abstractions.Messaging/ISyncBroadcaster.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ]
+          },
+          {
+            "id": "ambiguous_business_flow_flow_update_progress",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_update_progress",
+            "message": "Business flow Update Progress is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ]
+          }
+        ],
+        "unknowns": []
+      },
+      "rankedFlows": [
+        {
+          "flowId": "flow_update_progress",
+          "name": "Update Progress",
+          "rank": 1,
+          "score": 0.803,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.533,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Update Progress combines business value 0.95, evidence strength 0.53, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.80.",
+          "evidencePaths": [
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_cross_client_notification_flow_server_side",
+          "name": "Cross-Client Notification Flow (server-side)",
+          "rank": 2,
+          "score": 0.798,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.58,
+            "architectureCoverage": 0.917,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Cross-Client Notification Flow (server-side) combines business value 0.95, evidence strength 0.58, architecture coverage 0.92, execution truth 1.00, and comprehension 0.18 for a total score of 0.80.",
+          "evidencePaths": [
+            "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "NexusReader.Application.Abstractions.Messaging/ISyncBroadcaster.cs",
+            "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_reading_progress_sync_flow",
+          "name": "Reading Progress Sync Flow",
+          "rank": 3,
+          "score": 0.793,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.625,
+            "architectureCoverage": 0.833,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Reading Progress Sync Flow combines business value 0.95, evidence strength 0.63, architecture coverage 0.83, execution truth 1.00, and comprehension 0.18 for a total score of 0.79.",
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Services/SyncService.cs",
+            "self",
+            "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+          ],
+          "confidence": "high"
+        }
+      ],
+      "validation": {
+        "status": "pass",
+        "coverage": {
+          "totalDomains": 14,
+          "coveredDomains": 14,
+          "totalCapabilities": 3,
+          "coveredCapabilities": 3,
+          "totalFlows": 3,
+          "coveredFlows": 3
+        },
+        "issueCount": 0,
+        "issues": []
+      }
+    },
+    {
+      "documentFilename": "security-identity-auth.md",
+      "documentTitle": "Security, Identity and Authorization",
+      "relativeOutputPath": "flows/security-identity-auth.md",
+      "collectionKind": "flows",
+      "publicationTier": "secondary",
+      "businessModel": {
+        "documentFilename": "security-identity-auth.md",
+        "documentTitle": "Security, Identity and Authorization",
+        "summary": "Security, Identity and Authorization centers on ai token limit, ai tokens, ai tokens (aitokensused, aitokenlimit) and currently highlights Client-side API call with automatic token attach & refresh as the most representative business flow.",
+        "domains": [
+          {
+            "id": "ai_token_limit",
+            "name": "ai token limit",
+            "description": "Security, Identity and Authorization is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ai_tokens",
+            "name": "ai tokens",
+            "description": "Security, Identity and Authorization is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/Security/Authorization/ProUserRequirement.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Security/Authorization/ProUserRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ai_tokens_aitokensused_aitokenlimit",
+            "name": "ai tokens (aitokensused, aitokenlimit)",
+            "description": "Security, Identity and Authorization is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ai_tokens_token_limits",
+            "name": "ai tokens / token limits",
+            "description": "Security, Identity and Authorization is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "auth",
+            "name": "auth",
+            "description": "Security, Identity and Authorization is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "authentication",
+            "name": "authentication",
+            "description": "Security, Identity and Authorization is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "authentication_claims",
+            "name": "authentication / claims",
+            "description": "Security, Identity and Authorization is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web/Services/ServerIdentityService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Services/ServerIdentityService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "authorization_policy",
+            "name": "authorization policy",
+            "description": "Security, Identity and Authorization is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/Security/Authorization/ProUserRequirement.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Security/Authorization/ProUserRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "authorization_policy",
+            "name": "authorization/policy",
+            "description": "Security, Identity and Authorization is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "jwt",
+            "name": "jwt",
+            "description": "Security, Identity and Authorization is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "pro_subscription",
+            "name": "pro subscription",
+            "description": "Security, Identity and Authorization is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/Security/Authorization/ProUserRequirement.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Security/Authorization/ProUserRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "secure_client_storage",
+            "name": "secure client storage",
+            "description": "Security, Identity and Authorization is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "subscriptionplan",
+            "name": "subscriptionplan",
+            "description": "Security, Identity and Authorization is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Web/Services/ServerIdentityService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Web/Services/ServerIdentityService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "tenant",
+            "name": "tenant",
+            "description": "Security, Identity and Authorization is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+              "NexusReader.Web/Services/ServerIdentityService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+              "NexusReader.Web/Services/ServerIdentityService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "token_refresh",
+            "name": "token refresh",
+            "description": "Security, Identity and Authorization is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "user",
+            "name": "user",
+            "description": "Security, Identity and Authorization is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Web/Services/ServerIdentityService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Web/Services/ServerIdentityService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "user_roles",
+            "name": "user roles",
+            "description": "Security, Identity and Authorization is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+            ],
+            "confidence": "high"
+          }
+        ],
+        "capabilities": [
+          {
+            "id": "capability_client_side_api_call_with_automatic_token_attach_refresh",
+            "name": "Client-side API call with automatic token attach & refresh",
+            "description": "Client-side API call with automatic token attach & refresh coordinates 6 business-relevant steps beginning at NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs.",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_client_side_api_call_with_automatic_token_attach_refresh"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_server_side_login_profile_access",
+            "name": "Server-side login / profile access",
+            "description": "Server-side login / profile access coordinates 4 business-relevant steps beginning at NexusReader.Web/Services/ServerIdentityService.cs.",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Services/ServerIdentityService.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_server_side_login_profile_access"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Services/ServerIdentityService.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_authorization_pro_subscription_token_limit_enforcement",
+            "name": "Authorization: Pro subscription / Token limit enforcement",
+            "description": "Authorization: Pro subscription / Token limit enforcement coordinates 4 business-relevant steps beginning at NexusReader.Application/Security/Authorization/ProUserHandler.cs.",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_authorization_pro_subscription_token_limit_enforcement"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_handle_requirement_async",
+            "name": "Handle Requirement Async",
+            "description": "Handle Requirement Async coordinates 6 business-relevant steps beginning at NexusReader.Infrastructure/Identity/TokenLimitHandler.cs.",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_handle_requirement_async"
+            ],
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_get_authentication_state_async",
+            "name": "Get Authentication State Async",
+            "description": "Get Authentication State Async coordinates 8 business-relevant steps beginning at NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs.",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_get_authentication_state_async"
+            ],
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_send_async",
+            "name": "Send Async",
+            "description": "Send Async coordinates 8 business-relevant steps beginning at NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs.",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_send_async"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high"
+          }
+        ],
+        "flows": [
+          {
+            "id": "flow_client_side_api_call_with_automatic_token_attach_refresh",
+            "name": "Client-side API call with automatic token attach & refresh",
+            "description": "Client-side API call with automatic token attach & refresh starts at NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs and follows 12 grounded steps: Enter Send Async -> Falls back to alternate path -> Calls external dependency -> Evaluates branch condition -> ....",
+            "capabilityId": "capability_client_side_api_call_with_automatic_token_attach_refresh",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_entry",
+                "label": "Enter Send Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "self",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_fallback_73_6",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_external_call_27_0",
+                "label": "Calls external dependency",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_branch_45_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_return_95_11",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_return_109",
+                "label": "Return response",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_self_clonehttprequestmessageasync_93",
+                "label": "Call Clone Http Request Message Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_getsecurestring_47",
+                "label": "Call Get Secure String",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_refreshtokenasync_78",
+                "label": "Call Refresh Token Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_logoutasync_87",
+                "label": "Call Logout Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
+                "label": "protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
+                "label": "var response = await base.SendAsync(request, cancellationToken);",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_server_side_login_profile_access",
+            "name": "Server-side login / profile access",
+            "description": "Server-side login / profile access starts at NexusReader.Web/Services/ServerIdentityService.cs and follows 7 grounded steps: Enter Login Async -> Guards early exit or rejection path -> Reads repository or persistence state -> Evaluates branch condition -> ....",
+            "capabilityId": "capability_server_side_login_profile_access",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Services/ServerIdentityService.cs",
+              "unknown",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_services_serveridentityservice_cs_loginasync_entry",
+                "label": "Enter Login Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Services/ServerIdentityService.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_web_services_serveridentityservice_cs_loginasync_loginasync_guard_clause_44_1",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Services/ServerIdentityService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_services_serveridentityservice_cs_loginasync_loginasync_repository_read_43_0",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Services/ServerIdentityService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_services_serveridentityservice_cs_loginasync_loginasync_branch_51_3",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Services/ServerIdentityService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_services_serveridentityservice_cs_loginasync_loginasync_return_54_4",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Services/ServerIdentityService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_services_serveridentityservice_cs_loginasync_unknown_usermanager_findbyemailasync_43",
+                "label": "Call User Manager",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Services/ServerIdentityService.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_web_services_serveridentityservice_cs_loginasync_persistence_read",
+                "label": "var user = await _userManager.FindByEmailAsync(email);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Services/ServerIdentityService.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Services/ServerIdentityService.cs",
+              "unknown",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_authorization_pro_subscription_token_limit_enforcement",
+            "name": "Authorization: Pro subscription / Token limit enforcement",
+            "description": "Authorization: Pro subscription / Token limit enforcement starts at NexusReader.Application/Security/Authorization/ProUserHandler.cs and follows 7 grounded steps: Enter Handle Requirement Async -> Reads repository or persistence state -> Evaluates branch condition -> Returns result -> ....",
+            "capabilityId": "capability_authorization_pro_subscription_token_limit_enforcement",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Data.Persistence",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_entry",
+                "label": "Enter Handle Requirement Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+                  "NexusReader.Data.Persistence"
+                ]
+              },
+              {
+                "id": "nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_handlerequirementasync_repository_read_24_0",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_handlerequirementasync_branch_25_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_handlerequirementasync_return_27_2",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_nexusreader_data_persistence_appdbcontext_users_firstordefaultasync_includes_subscriptionplan_31",
+                "label": "Call App Db Context.Users",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+                  "NexusReader.Data.Persistence"
+                ]
+              },
+              {
+                "id": "nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_persistence_read",
+                "label": "var userId = context.User.FindFirstValue(ClaimTypes.NameIdentifier);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_persistence_read",
+                "label": "context.Succeed(requirement);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Data.Persistence",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_handle_requirement_async",
+            "name": "Handle Requirement Async",
+            "description": "Handle Requirement Async starts at NexusReader.Infrastructure/Identity/TokenLimitHandler.cs and follows 11 grounded steps: Enter Handle Requirement Async -> Reads repository or persistence state -> Evaluates branch condition -> Returns result -> ....",
+            "capabilityId": "capability_handle_requirement_async",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "unknown",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_entry",
+                "label": "Enter Handle Requirement Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_handlerequirementasync_repository_read_28_0",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_handlerequirementasync_branch_29_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_handlerequirementasync_return_31_2",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_unknown_claimsprincipal_findfirstvalue_28",
+                "label": "Call Claims Principal",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_unknown_idbcontextfactory_appdbcontext_createdbcontext_34",
+                "label": "Call IDb Context Factory<App Db Context>",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_unknown_dbset_users_include_firstordefaultasync_35",
+                "label": "Call Db Set<Users>",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_unknown_authorizationhandlercontext_succeed_47",
+                "label": "Call Authorization Handler Context",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_persistence_read",
+                "label": "var userId = context.User.FindFirstValue(ClaimTypes.NameIdentifier);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_persistence_read",
+                "label": "db.Users.Include(u => u.SubscriptionPlan).FirstOrDefaultAsync(u => u.Id == userId) - loads user and navigation property",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_persistence_read",
+                "label": "context.Succeed(requirement);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "unknown",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_get_authentication_state_async",
+            "name": "Get Authentication State Async",
+            "description": "Get Authentication State Async starts at NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs and follows 7 grounded steps: Enter Get Authentication State Async -> Guards early exit or rejection path -> Evaluates branch condition -> Returns result -> ....",
+            "capabilityId": "capability_get_authentication_state_async",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+              "NexusReader.Application.Abstractions.Services/INativeStorageService.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_entry",
+                "label": "Enter Get Authentication State Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+                  "NexusReader.Application.Abstractions.Services/INativeStorageService.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_getauthenticationstateasync_guard_clause_35_0",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_getauthenticationstateasync_branch_41_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_getauthenticationstateasync_return_54_3",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_return_76",
+                "label": "Return anonymous principal fallback",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_nexusreader_application_abstractions_services_inativestorageservice_cs_getsecurestring_37",
+                "label": "Call Get Secure String",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+                  "NexusReader.Application.Abstractions.Services/INativeStorageService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_self_createstate_49",
+                "label": "Call Create State",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+                  "self"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+              "NexusReader.Application.Abstractions.Services/INativeStorageService.cs",
+              "self",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_send_async",
+            "name": "Send Async",
+            "description": "Send Async starts at NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs and follows 12 grounded steps: Enter Send Async -> Falls back to alternate path -> Calls external dependency -> Evaluates branch condition -> ....",
+            "capabilityId": "capability_send_async",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_entry",
+                "label": "Enter Send Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "self",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_fallback_73_6",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
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+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_branch_45_1",
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+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_return_95_11",
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+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
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+              },
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+                ]
+              },
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+              {
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+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
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+              {
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+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
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+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
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+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
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+            "confidence": "high",
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+              "NexusReader.Application.Abstractions.Services",
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+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
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+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
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+            "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
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+        },
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+            "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
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+          "confidence": "high"
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+        {
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+        "issues": []
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+              "NexusReader.UI.Shared/Pages/Account/Profile.razor"
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+              "NexusReader.UI.Shared/Pages/Account/Profile.razor"
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+            "confidence": "high"
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+          {
+            "id": "ai_tokens",
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+              "NexusReader.Application/Security/Authorization/ProUserRequirement.cs"
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+            "evidencePaths": [
+              "NexusReader.Application/Security/Authorization/ProUserRequirement.cs"
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+            "confidence": "high"
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+          {
+            "id": "ai_tokens_aitokensused_aitokenlimit",
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+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
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+            "evidencePaths": [
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
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+            "confidence": "high"
+          },
+          {
+            "id": "auth",
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+            "relatedPaths": [],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
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+            "confidence": "high"
+          },
+          {
+            "id": "authentication",
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+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "NexusReader.UI.Shared/Pages/Account/Login.razor",
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+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "NexusReader.UI.Shared/Pages/Account/Login.razor",
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+            "confidence": "high"
+          },
+          {
+            "id": "author",
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+            "relatedPaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Application/DTOs/User/AuthorDto.cs",
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+            "evidencePaths": [
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+              "NexusReader.Application/DTOs/User/AuthorDto.cs",
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+            "confidence": "high"
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+          {
+            "id": "authorization_policy",
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+            "relatedPaths": [
+              "NexusReader.Application/Security/Authorization/ProUserRequirement.cs"
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+            "confidence": "high"
+          },
+          {
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+              "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs"
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+            "evidencePaths": [
+              "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs"
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+            "confidence": "high"
+          },
+          {
+            "id": "cookie_based_sign_in",
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+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.UI.Shared/Pages/Account/Register.razor"
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+              "NexusReader.UI.Shared/Pages/Account/Register.razor"
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+          },
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+            "confidence": "high"
+          },
+          {
+            "id": "ebook_epub_ingestion",
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+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
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+              "NexusReader.Web/Program.cs"
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+            "evidencePaths": [
+              "NexusReader.Web/Program.cs"
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+            "confidence": "high"
+          },
+          {
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+            "evidencePaths": [
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+            "confidence": "high"
+          },
+          {
+            "id": "external_google_login",
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+              "NexusReader.UI.Shared/Pages/Account/Login.razor"
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+            "evidencePaths": [
+              "NexusReader.UI.Shared/Pages/Account/Login.razor"
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+            "confidence": "high"
+          },
+          {
+            "id": "identity_authenticationstateprovider",
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+            "relatedPaths": [
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+            "confidence": "high"
+          },
+          {
+            "id": "jwt",
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+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
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+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
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+            "confidence": "high"
+          },
+          {
+            "id": "knowledge_knowledge_service_graph_summary",
+            "name": "knowledge (knowledge service, graph, summary)",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs"
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+            "confidence": "high"
+          },
+          {
+            "id": "knowledgegraph_knowledgecoordinator",
+            "name": "knowledgegraph / knowledgecoordinator",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
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+            "confidence": "high"
+          },
+          {
+            "id": "nexususer_identity",
+            "name": "nexususer (identity)",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "pro_subscription",
+            "name": "pro subscription",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/Security/Authorization/ProUserRequirement.cs"
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+            "evidencePaths": [
+              "NexusReader.Application/Security/Authorization/ProUserRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "query",
+            "name": "query",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/Abstractions/Messaging/IQuery.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Abstractions/Messaging/IQuery.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "quiz_state",
+            "name": "quiz state",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
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+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
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+            "confidence": "high"
+          },
+          {
+            "id": "reader_navigation",
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+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "real_time_sync_broadcast",
+            "name": "real time sync/broadcast",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "result",
+            "name": "result",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "result_tresponse",
+            "name": "result<tresponse>",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/Abstractions/Messaging/IQuery.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/Abstractions/Messaging/IQuery.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "secure_client_storage",
+            "name": "secure client storage",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "session_cookie_sign_in_orchestration",
+            "name": "session/cookie sign in orchestration",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.UI.Shared/Pages/Account/Login.razor"
+            ],
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Pages/Account/Login.razor"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "subscription_plan",
+            "name": "subscription / plan",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.UI.Shared/Pages/Account/Profile.razor"
+            ],
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Pages/Account/Profile.razor"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "subscriptionplan",
+            "name": "subscriptionplan",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "sync",
+            "name": "sync",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "tenantid",
+            "name": "tenantid",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.UI.Shared/Pages/Account/Profile.razor"
+            ],
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Pages/Account/Profile.razor"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "theme_focus_mode",
+            "name": "theme & focus mode",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "token_refresh",
+            "name": "token refresh",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "user",
+            "name": "user",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Application/DTOs/User/AuthorDto.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Application/DTOs/User/AuthorDto.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "user_registration",
+            "name": "user registration",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.UI.Shared/Pages/Account/Register.razor"
+            ],
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Pages/Account/Register.razor"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "userprofile",
+            "name": "userprofile",
+            "description": "Top Business Flows is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.UI.Shared/Pages/Account/Profile.razor"
+            ],
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Pages/Account/Profile.razor"
+            ],
+            "confidence": "high"
+          }
+        ],
+        "capabilities": [
+          {
+            "id": "capability_user_authentication_login_register_flow",
+            "name": "User Authentication (Login/Register) Flow",
+            "description": "User Authentication (Login/Register) Flow coordinates 5 business-relevant steps beginning at NexusReader.UI.Shared/Pages/Account/Login.razor.",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.UI.Shared/Pages/Account/Login.razor",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_user_authentication_login_register_flow"
+            ],
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Pages/Account/Login.razor",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_knowledge_question_semantic_search_flow",
+            "name": "Knowledge Question / Semantic Search Flow",
+            "description": "Knowledge Question / Semantic Search Flow coordinates 5 business-relevant steps beginning at NexusReader.Web/Program.cs.",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_knowledge_question_semantic_search_flow"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_ebook_retrieval_ingestion_flow",
+            "name": "Ebook Retrieval / Ingestion Flow",
+            "description": "Ebook Retrieval / Ingestion Flow coordinates 4 business-relevant steps beginning at NexusReader.Web/Program.cs.",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_ebook_retrieval_ingestion_flow"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_token_attach_refresh_flow_client_http",
+            "name": "Token Attach & Refresh Flow (Client HTTP)",
+            "description": "Token Attach & Refresh Flow (Client HTTP) coordinates 4 business-relevant steps beginning at NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs.",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_token_attach_refresh_flow_client_http"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) coordinates 8 business-relevant steps beginning at NexusReader.Web/Program.cs.",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_program_top_level"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized coordinates 4 business-relevant steps beginning at NexusReader.Web/Program.cs.",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_ensure_database_initialized"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success coordinates 4 business-relevant steps beginning at NexusReader.Web/Program.cs.",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_handle_subscription_success"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          }
+        ],
+        "flows": [
+          {
+            "id": "flow_user_authentication_login_register_flow",
+            "name": "User Authentication (Login/Register) Flow",
+            "description": "User Authentication (Login/Register) Flow starts at NexusReader.UI.Shared/Pages/Account/Login.razor and follows 9 grounded steps: Enter Handle Login -> Falls back to alternate path -> Evaluates branch condition -> Reads repository or persistence state -> ....",
+            "capabilityId": "capability_user_authentication_login_register_flow",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.UI.Shared/Pages/Account/Login.razor",
+              "NexusReader.UI.Shared/Services/IIdentityService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_entry",
+                "label": "Enter Handle Login",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor",
+                  "NexusReader.UI.Shared/Services/IIdentityService.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_handlelogin_fallback_139_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_handlelogin_branch_134_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_handlelogin_repository_read_141_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_nexusreader_ui_shared_services_iidentityservice_cs_loginasync_133",
+                "label": "Call Login Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor",
+                  "NexusReader.UI.Shared/Services/IIdentityService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_unknown_nexusauth_submitloginform_js_via_ijsruntime_137",
+                "label": "Call nexus Auth",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_external_call",
+                "label": "await IdentityService.LoginAsync(...)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_persistence_read",
+                "label": "_errorMessage = result.Errors.FirstOrDefault()?.Message ?? \"Nieprawidłowy e-mail lub hasło.\";",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_result",
+                "label": "Complete Handle Login",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor",
+                  "NexusReader.UI.Shared/Services/IIdentityService.cs",
+                  "unknown"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Pages/Account/Login.razor",
+              "NexusReader.UI.Shared/Services/IIdentityService.cs",
+              "unknown",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_knowledge_question_semantic_search_flow",
+            "name": "Knowledge Question / Semantic Search Flow",
+            "description": "Knowledge Question / Semantic Search Flow starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_knowledge_question_semantic_search_flow",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_ebook_retrieval_ingestion_flow",
+            "name": "Ebook Retrieval / Ingestion Flow",
+            "description": "Ebook Retrieval / Ingestion Flow starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ebook_retrieval_ingestion_flow",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_token_attach_refresh_flow_client_http",
+            "name": "Token Attach & Refresh Flow (Client HTTP)",
+            "description": "Token Attach & Refresh Flow (Client HTTP) starts at NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs and follows 12 grounded steps: Enter Send Async -> Falls back to alternate path -> Calls external dependency -> Evaluates branch condition -> ....",
+            "capabilityId": "capability_token_attach_refresh_flow_client_http",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_entry",
+                "label": "Enter Send Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "self",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_fallback_73_6",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_external_call_27_0",
+                "label": "Calls external dependency",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_branch_45_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_return_95_11",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_return_109",
+                "label": "Return response",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_self_clonehttprequestmessageasync_93",
+                "label": "Call Clone Http Request Message Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_getsecurestring_47",
+                "label": "Call Get Secure String",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_refreshtokenasync_78",
+                "label": "Call Refresh Token Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_logoutasync_87",
+                "label": "Call Logout Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
+                "label": "protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
+                "label": "var response = await base.SendAsync(request, cancellationToken);",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_program_top_level",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ensure_database_initialized",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_handle_subscription_success",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          }
+        ],
+        "generatedFrom": {
+          "contextBagId": "top_business_flows_md",
+          "summaryCount": 15,
+          "dataFlowCount": 7,
+          "artifactStrategy": "structured-artifacts-first",
+          "semanticChunkCount": 1,
+          "chunkingIssueCodes": [],
+          "targetedRereadCount": 0,
+          "targetedRereadPaths": []
+        },
+        "gaps": [
+          {
+            "id": "ambiguous_business_flow_flow_knowledge_question_semantic_search_flow",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_knowledge_question_semantic_search_flow",
+            "message": "Business flow Knowledge Question / Semantic Search Flow is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ]
+          },
+          {
+            "id": "ambiguous_business_flow_flow_ebook_retrieval_ingestion_flow",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_ebook_retrieval_ingestion_flow",
+            "message": "Business flow Ebook Retrieval / Ingestion Flow is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ]
+          }
+        ],
+        "unknowns": []
+      },
+      "rankedFlows": [
+        {
+          "flowId": "flow_ebook_retrieval_ingestion_flow",
+          "name": "Ebook Retrieval / Ingestion Flow",
+          "rank": 1,
+          "score": 0.861,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.8,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Ebook Retrieval / Ingestion Flow combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_ensure_database_initialized",
+          "name": "Ensure Database Initialized",
+          "rank": 2,
+          "score": 0.861,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.8,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Ensure Database Initialized combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_handle_subscription_success",
+          "name": "Handle Subscription Success",
+          "rank": 3,
+          "score": 0.861,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.8,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Handle Subscription Success combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_knowledge_question_semantic_search_flow",
+          "name": "Knowledge Question / Semantic Search Flow",
+          "rank": 4,
+          "score": 0.861,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.8,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Knowledge Question / Semantic Search Flow combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_program_top_level",
+          "name": "Program (top level)",
+          "rank": 5,
+          "score": 0.861,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.8,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Program (top level) combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_user_authentication_login_register_flow",
+          "name": "User Authentication (Login/Register) Flow",
+          "rank": 6,
+          "score": 0.861,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.8,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because User Authentication (Login/Register) Flow combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Account/Login.razor",
+            "NexusReader.UI.Shared/Services/IIdentityService.cs",
+            "unknown",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_token_attach_refresh_flow_client_http",
+          "name": "Token Attach & Refresh Flow (Client HTTP)",
+          "rank": 7,
+          "score": 0.825,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.7,
+            "architectureCoverage": 0.917,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Token Attach & Refresh Flow (Client HTTP) combines business value 0.95, evidence strength 0.70, architecture coverage 0.92, execution truth 1.00, and comprehension 0.18 for a total score of 0.82.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "self",
+            "NexusReader.Application.Abstractions.Services",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high"
+        }
+      ],
+      "validation": {
+        "status": "pass",
+        "coverage": {
+          "totalDomains": 37,
+          "coveredDomains": 37,
+          "totalCapabilities": 7,
+          "coveredCapabilities": 7,
+          "totalFlows": 7,
+          "coveredFlows": 7
+        },
+        "issueCount": 0,
+        "issues": []
+      }
+    },
+    {
+      "documentFilename": "web-client-wasm.md",
+      "documentTitle": "Blazor WebAssembly Client: hosting, handlers, and platform services",
+      "relativeOutputPath": "flows/web-client-wasm.md",
+      "collectionKind": "flows",
+      "publicationTier": "secondary",
+      "businessModel": {
+        "documentFilename": "web-client-wasm.md",
+        "documentTitle": "Blazor WebAssembly Client: hosting, handlers, and platform services",
+        "summary": "Blazor WebAssembly Client: hosting, handlers, and platform services centers on application layer integration, auth, authentication and currently highlights WASM Authentication Header and Token Refresh as the most representative business flow.",
+        "domains": [
+          {
+            "id": "application_layer_integration",
+            "name": "application layer integration",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/NexusReader.Web.Client.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/NexusReader.Web.Client.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "auth",
+            "name": "auth",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "authentication",
+            "name": "authentication",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "author",
+            "name": "author",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "chapter_retrieval",
+            "name": "chapter retrieval",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "client_wasm",
+            "name": "client (wasm)",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/NexusReader.Web.Client.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/NexusReader.Web.Client.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "devicecontext",
+            "name": "devicecontext",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "devicetype",
+            "name": "devicetype",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "displayorientation",
+            "name": "displayorientation",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ebook",
+            "name": "ebook",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "ebook_epub_ingestion",
+            "name": "ebook / epub ingestion",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "embedding",
+            "name": "embedding",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "epub",
+            "name": "epub",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "groundedness",
+            "name": "groundedness",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "groundedresponse",
+            "name": "groundedresponse",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "identity_authenticationstateprovider",
+            "name": "identity (authenticationstateprovider)",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "jwt",
+            "name": "jwt",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "knowledge_knowledge_service_graph_summary",
+            "name": "knowledge (knowledge service, graph, summary)",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "knowledgegraph_knowledgecoordinator",
+            "name": "knowledgegraph / knowledgecoordinator",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "knowledgepacket",
+            "name": "knowledgepacket",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "localepubmetadata",
+            "name": "localepubmetadata",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "nexususer_identity",
+            "name": "nexususer (identity)",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "quiz_state",
+            "name": "quiz state",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "reader_navigation",
+            "name": "reader navigation",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "readerpage",
+            "name": "readerpage",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "real_time_sync_broadcast",
+            "name": "real time sync/broadcast",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "relevantcontext",
+            "name": "relevantcontext",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "secure_client_storage",
+            "name": "secure client storage",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "semanticsearch",
+            "name": "semanticsearch",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
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+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "shared_ui",
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+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/NexusReader.Web.Client.csproj"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/NexusReader.Web.Client.csproj"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "subscriptionplan",
+            "name": "subscriptionplan",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "sync",
+            "name": "sync",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "theme_focus_mode",
+            "name": "theme & focus mode",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "token_refresh",
+            "name": "token refresh",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "vibration",
+            "name": "vibration",
+            "description": "Blazor WebAssembly Client: hosting, handlers, and platform services is currently grounded only by document anchors and still lacks a verified cross-file execution narrative.",
+            "relatedPaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WebPlatformService.cs"
+            ],
+            "confidence": "high"
+          }
+        ],
+        "capabilities": [
+          {
+            "id": "capability_wasm_authentication_header_and_token_refresh",
+            "name": "WASM Authentication Header and Token Refresh",
+            "description": "WASM Authentication Header and Token Refresh coordinates 5 business-relevant steps beginning at NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs.",
+            "domainIds": [
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "nexususer_identity",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "secure_client_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_wasm_authentication_header_and_token_refresh"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_epub_content_retrieval_flow",
+            "name": "Epub Content Retrieval Flow",
+            "description": "Epub Content Retrieval Flow coordinates 4 business-relevant steps beginning at NexusReader.Web.Client/Services/WasmEpubService.cs.",
+            "domainIds": [
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
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+              "devicetype",
+              "displayorientation",
+              "ebook",
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+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "nexususer_identity",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "secure_client_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "vibration"
+            ],
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+              "NexusReader.Web.Client/Services/WasmEpubService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [
+              "flow_epub_content_retrieval_flow"
+            ],
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          {
+            "id": "capability_knowledge_api_call_flow",
+            "name": "Knowledge API Call Flow",
+            "description": "Knowledge API Call Flow coordinates 4 business-relevant steps beginning at NexusReader.Web.Client/Services/WasmKnowledgeService.cs.",
+            "domainIds": [
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "nexususer_identity",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "secure_client_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
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+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
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+              "NexusReader.Web/Program.cs"
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+            "confidence": "high"
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+          {
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+              "relevantcontext",
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+              "shared_ui",
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+              "theme_focus_mode",
+              "token_refresh",
+              "vibration"
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+              "NexusReader.Web.Client/Program.cs",
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+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
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+            "id": "capability_ensure_database_initialized",
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+              "reader_navigation",
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+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
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+            "supportingFlowIds": [
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+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
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+            "confidence": "high"
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+          {
+            "id": "capability_handle_subscription_success",
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+              "application_layer_integration",
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+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
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+              "NexusReader.Web/Program.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
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+              "NexusReader.Web.Client/Program.cs",
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+              "knowledgegraph_knowledgecoordinator",
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+              "localepubmetadata",
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+              "relevantcontext",
+              "secure_client_storage",
+              "semanticsearch",
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+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
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+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_branch_45_1",
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+              },
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+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_return_109",
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+              },
+              {
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+                "kind": "processing",
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+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
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+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
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+            "confidence": "high",
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+              "localepubmetadata",
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+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
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+              },
+              {
+                "id": "nexusreader_web_client_services_wasmepubservice_cs_getepubcontentasync_getepubcontentasync_return_29_1",
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+              }
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+              "NexusReader.Web.Client/Program.cs",
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+              "NexusReader.Web/Program.cs"
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+            "confidence": "low",
+            "unknowns": []
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+          {
+            "id": "flow_knowledge_api_call_flow",
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+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
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+              "secure_client_storage",
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+              "theme_focus_mode",
+              "token_refresh",
+              "vibration"
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+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
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+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_getrelevantcontextasync_repository_read_45_1",
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+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_return_45",
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+                "evidencePaths": [
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+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_external_call",
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+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
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+              },
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+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_persistence_read",
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+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
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+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
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+              "localepubmetadata",
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+              "readerpage",
+              "real_time_sync_broadcast",
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+              "secure_client_storage",
+              "semanticsearch",
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+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "vibration"
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+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
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+            "supportingFlowIds": [],
+            "steps": [
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+                "kind": "processing",
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+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
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+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
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+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
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+                "kind": "decision",
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+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
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+                "kind": "persistence",
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+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ensure_database_initialized",
+            "domainIds": [
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "nexususer_identity",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "secure_client_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          {
+            "id": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_handle_subscription_success",
+            "domainIds": [
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "nexususer_identity",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "secure_client_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          }
+        ],
+        "generatedFrom": {
+          "contextBagId": "web_client_wasm_md",
+          "summaryCount": 8,
+          "dataFlowCount": 6,
+          "artifactStrategy": "structured-artifacts-first",
+          "semanticChunkCount": 1,
+          "chunkingIssueCodes": [],
+          "targetedRereadCount": 0,
+          "targetedRereadPaths": []
+        },
+        "gaps": [
+          {
+            "id": "low_confidence_flow_flow_epub_content_retrieval_flow",
+            "code": "low-confidence-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_epub_content_retrieval_flow",
+            "message": "Business flow Epub Content Retrieval Flow remains low confidence.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ]
+          },
+          {
+            "id": "ambiguous_business_flow_flow_wasm_authentication_header_and_token_refresh",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_wasm_authentication_header_and_token_refresh",
+            "message": "Business flow WASM Authentication Header and Token Refresh is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ]
+          },
+          {
+            "id": "ambiguous_business_flow_flow_program_top_level",
+            "code": "ambiguous-business-flow",
+            "severity": "warn",
+            "targetType": "flow",
+            "targetId": "flow_program_top_level",
+            "message": "Business flow Program (top level) is ambiguous relative to another candidate flow in the same scope.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ]
+          }
+        ],
+        "unknowns": []
+      },
+      "rankedFlows": [
+        {
+          "flowId": "flow_ensure_database_initialized",
+          "name": "Ensure Database Initialized",
+          "rank": 1,
+          "score": 0.861,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.8,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Ensure Database Initialized combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_handle_subscription_success",
+          "name": "Handle Subscription Success",
+          "rank": 2,
+          "score": 0.861,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.8,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Handle Subscription Success combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_program_top_level",
+          "name": "Program (top level)",
+          "rank": 3,
+          "score": 0.861,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.8,
+            "architectureCoverage": 1,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because Program (top level) combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_knowledge_api_call_flow",
+          "name": "Knowledge API Call Flow",
+          "rank": 4,
+          "score": 0.858,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.743,
+            "architectureCoverage": 0.917,
+            "executionTruth": 1,
+            "userComprehension": 0.42
+          },
+          "reason": "Ranked because Knowledge API Call Flow combines business value 0.95, evidence strength 0.74, architecture coverage 0.92, execution truth 1.00, and comprehension 0.42 for a total score of 0.86.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_wasm_authentication_header_and_token_refresh",
+          "name": "WASM Authentication Header and Token Refresh",
+          "rank": 5,
+          "score": 0.825,
+          "scoreBreakdown": {
+            "businessValue": 0.95,
+            "evidenceStrength": 0.7,
+            "architectureCoverage": 0.917,
+            "executionTruth": 1,
+            "userComprehension": 0.18
+          },
+          "reason": "Ranked because WASM Authentication Header and Token Refresh combines business value 0.95, evidence strength 0.70, architecture coverage 0.92, execution truth 1.00, and comprehension 0.18 for a total score of 0.82.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "self",
+            "NexusReader.Application.Abstractions.Services",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high"
+        },
+        {
+          "flowId": "flow_epub_content_retrieval_flow",
+          "name": "Epub Content Retrieval Flow",
+          "rank": 6,
+          "score": 0.737,
+          "scoreBreakdown": {
+            "businessValue": 0.89,
+            "evidenceStrength": 0.76,
+            "architectureCoverage": 0.75,
+            "executionTruth": 0.68,
+            "userComprehension": 0.42
+          },
+          "reason": "Ranked because Epub Content Retrieval Flow combines business value 0.89, evidence strength 0.76, architecture coverage 0.75, execution truth 0.68, and comprehension 0.42 for a total score of 0.74.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Services/WasmEpubService.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "low"
+        }
+      ],
+      "validation": {
+        "status": "warn",
+        "coverage": {
+          "totalDomains": 35,
+          "coveredDomains": 35,
+          "totalCapabilities": 6,
+          "coveredCapabilities": 6,
+          "totalFlows": 6,
+          "coveredFlows": 6
+        },
+        "issueCount": 1,
+        "issues": [
+          {
+            "code": "low-flow-confidence",
+            "severity": "warn",
+            "documentFilename": "web-client-wasm.md",
+            "targetType": "flow",
+            "targetId": "flow_epub_content_retrieval_flow",
+            "message": "Business flow Epub Content Retrieval Flow is low confidence.",
+            "evidenceCount": 4,
+            "confidence": "low"
+          }
+        ]
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/context-bags/application_layer_md.context-bag.json b/src/.documentation/machine/context-bags/application_layer_md.context-bag.json
new file mode 100644
index 0000000..552bb31
--- /dev/null
+++ b/src/.documentation/machine/context-bags/application_layer_md.context-bag.json
@@ -0,0 +1,286 @@
+{
+  "generatedAt": "2026-05-22T06:39:20.207Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "application-layer.md",
+    "title": "Application Layer: Commands, Queries and DTOs",
+    "kind": "domain-model",
+    "scopeDescription": "Describe the Application project patterns: command and query types, handlers, DTOs, mapping configuration, and any messaging/mediator abstraction. Explain major handlers such as ebook ingestion, AI verification, semantic search, reader page queries, and user/profile queries.",
+    "relativeOutputPath": "domains/application-layer.md",
+    "publicationTier": "secondary",
+    "collectionId": "domains:domains",
+    "collectionKind": "domains"
+  },
+  "contextBag": {
+    "id": "application_layer_md",
+    "bagType": "startup",
+    "title": "Application Layer: Commands, Queries and DTOs context bag",
+    "anchorFiles": [
+      "NexusReader.Web.Client/Program.cs",
+      "NexusReader.Maui/MauiProgram.cs",
+      "NexusReader.Web/Program.cs",
+      "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+    ],
+    "includedFiles": [
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/IQueryHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Library/IngestEbookCommandHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Library/IngestEbookRequest.cs",
+        "reason": "Selected as a high-value orchestration anchor within the document scope",
+        "source": "convention"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/DTOs/User/AuthorDto.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/DTOs/User/SubscriptionPlanDto.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/DTOs/User/UserProfileDto.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Mappings/MappingConfig.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQueryHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Library/GetMyEbooksQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Reader/GetReaderPageQueryHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/System/GetInitializationStatusQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/System/GetInitializationStatusQueryHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/User/GetUserProfileQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/User/GetUserProfileQueryHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Web.Client/Program.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Common/AppJsonContext.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/DTOs/AI/KnowledgePacket.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/DTOs/AI/RelevantContext.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Graph/GraphViewModels.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Quiz/QuizViewModels.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Reader/LocalEpubMetadata.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Reader/ViewModels.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Maui/MauiProgram.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Web/Program.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Application/Constants/PlanConstants.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Application/DependencyInjection.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      }
+    ],
+    "relatedDomains": [
+      "auth"
+    ],
+    "relatedEntrypoints": [
+      "NexusReader.Web.Client/Program.cs",
+      "NexusReader.Maui/MauiProgram.cs",
+      "NexusReader.Web/Program.cs"
+    ],
+    "confidence": 0.96
+  }
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/context-bags/business_overview_md.context-bag.json b/src/.documentation/machine/context-bags/business_overview_md.context-bag.json
new file mode 100644
index 0000000..4557f97
--- /dev/null
+++ b/src/.documentation/machine/context-bags/business_overview_md.context-bag.json
@@ -0,0 +1,156 @@
+{
+  "generatedAt": "2026-05-22T06:56:57.957Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "business-overview.md",
+    "title": "Business Overview",
+    "kind": "business-overview",
+    "scopeDescription": "Business domains, capabilities, and the major operational value streams across the system.",
+    "relativeOutputPath": "business/business-overview.md",
+    "publicationTier": "primary",
+    "collectionId": "business:business",
+    "collectionKind": "business"
+  },
+  "contextBag": {
+    "id": "business_overview_md",
+    "bagType": "module",
+    "title": "Business Overview context bag",
+    "anchorFiles": [
+      "NexusReader.Web.Client/Program.cs",
+      "NexusReader.Maui/MauiProgram.cs",
+      "NexusReader.Web/Program.cs"
+    ],
+    "includedFiles": [
+      {
+        "path": "NexusReader.Maui/MauiProgram.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Web.Client/Program.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Web/Program.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Application/DTOs/User/AuthorDto.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Domain/Entities/Author.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Layout/AuthLayout.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Account/Login.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Account/Register.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/DependencyInjection.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      }
+    ],
+    "relatedDomains": [
+      "auth",
+      "account"
+    ],
+    "relatedEntrypoints": [
+      "NexusReader.Web.Client/Program.cs",
+      "NexusReader.Maui/MauiProgram.cs",
+      "NexusReader.Web/Program.cs"
+    ],
+    "confidence": 0.75
+  }
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/context-bags/data_and_persistence_md.context-bag.json b/src/.documentation/machine/context-bags/data_and_persistence_md.context-bag.json
new file mode 100644
index 0000000..e5528e9
--- /dev/null
+++ b/src/.documentation/machine/context-bags/data_and_persistence_md.context-bag.json
@@ -0,0 +1,271 @@
+{
+  "generatedAt": "2026-05-22T06:51:55.324Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "data-and-persistence.md",
+    "title": "Data Layer, EF Core and Repositories",
+    "kind": "infrastructure",
+    "scopeDescription": "How EF Core is configured and used: AppDbContext, migrations, DbContextFactory, DbInitializer, and repository implementations (EbookRepository). Describe schema evolution (key migrations) and guidance for running migrations and seeding.",
+    "relativeOutputPath": "domains/data-and-persistence.md",
+    "publicationTier": "secondary",
+    "collectionId": "domains:domains",
+    "collectionKind": "domains"
+  },
+  "contextBag": {
+    "id": "data_and_persistence_md",
+    "bagType": "startup",
+    "title": "Data Layer, EF Core and Repositories context bag",
+    "anchorFiles": [
+      "NexusReader.Web.Client/Program.cs",
+      "NexusReader.Maui/MauiProgram.cs",
+      "NexusReader.Web/Program.cs",
+      "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+    ],
+    "includedFiles": [
+      {
+        "path": "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+        "reason": "Selected as a high-value orchestration anchor within the document scope",
+        "source": "convention"
+      },
+      {
+        "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Program.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/MauiProgram.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Web/Program.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260428184727_InitialPostgres.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260428184727_InitialPostgres.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260429080302_AddQuizResults.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260429080302_AddQuizResults.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260503175906_FinalNormalizedSubscriptionArchitecture.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260503175906_FinalNormalizedSubscriptionArchitecture.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510151022_NormalizeAuthor.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510151022_NormalizeAuthor.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510171941_AddEbookLastChapterIndex.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510171941_AddEbookLastChapterIndex.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/AppDbContextModelSnapshot.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/AppDbContext.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/AppDbContextFactory.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/DbInitializer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513181743_AddEbookReadyFlag.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513181743_AddEbookReadyFlag.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513183726_FixKnowledgeUnitEbookId.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513183726_FixKnowledgeUnitEbookId.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513185108_MakeKnowledgeUnitEbookIdNullable.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513185108_MakeKnowledgeUnitEbookIdNullable.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/NexusReader.Data.csproj",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/DependencyInjection.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      }
+    ],
+    "relatedDomains": [
+      "auth"
+    ],
+    "relatedEntrypoints": [
+      "NexusReader.Web.Client/Program.cs",
+      "NexusReader.Maui/MauiProgram.cs",
+      "NexusReader.Web/Program.cs"
+    ],
+    "confidence": 0.96
+  }
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/context-bags/infrastructure_services_md.context-bag.json b/src/.documentation/machine/context-bags/infrastructure_services_md.context-bag.json
new file mode 100644
index 0000000..1a00afe
--- /dev/null
+++ b/src/.documentation/machine/context-bags/infrastructure_services_md.context-bag.json
@@ -0,0 +1,161 @@
+{
+  "generatedAt": "2026-05-22T06:56:17.956Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "infrastructure-services.md",
+    "title": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub",
+    "kind": "service",
+    "scopeDescription": "Document core infrastructure services: KnowledgeService (AI/semantic search), EpubReaderService/MetadataExtractor, BookStorageService, BillingService, PromptRegistry, and mobile platform service implementations. Describe interfaces, implementation details, and configuration (AiSettings, StripeSettings).",
+    "relativeOutputPath": "domains/infrastructure-services.md",
+    "publicationTier": "secondary",
+    "collectionId": "domains:domains",
+    "collectionKind": "domains"
+  },
+  "contextBag": {
+    "id": "infrastructure_services_md",
+    "bagType": "startup",
+    "title": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub context bag",
+    "anchorFiles": [
+      "NexusReader.Web.Client/Program.cs",
+      "NexusReader.Maui/MauiProgram.cs",
+      "NexusReader.Web/Program.cs",
+      "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+    ],
+    "includedFiles": [
+      {
+        "path": "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+        "reason": "Selected as a high-value orchestration anchor within the document scope",
+        "source": "convention"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/BillingService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Program.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/MauiProgram.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Web/Program.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/DependencyInjection.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      }
+    ],
+    "relatedDomains": [
+      "auth"
+    ],
+    "relatedEntrypoints": [
+      "NexusReader.Web.Client/Program.cs",
+      "NexusReader.Maui/MauiProgram.cs",
+      "NexusReader.Web/Program.cs"
+    ],
+    "confidence": 0.96
+  }
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/context-bags/maui_mobile_md.context-bag.json b/src/.documentation/machine/context-bags/maui_mobile_md.context-bag.json
new file mode 100644
index 0000000..75df94e
--- /dev/null
+++ b/src/.documentation/machine/context-bags/maui_mobile_md.context-bag.json
@@ -0,0 +1,186 @@
+{
+  "generatedAt": "2026-05-22T06:46:55.697Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "maui-mobile.md",
+    "title": "MAUI Mobile Host: App wiring and platform services",
+    "kind": "service",
+    "scopeDescription": "MAUI-specific project: MauiProgram entrypoint, platform implementations and services (MauiStorageService, MauiPlatformService), Android platform glue, and how the MAUI host composes shared UI and Application services.",
+    "relativeOutputPath": "domains/maui-mobile.md",
+    "publicationTier": "secondary",
+    "collectionId": "domains:domains",
+    "collectionKind": "domains"
+  },
+  "contextBag": {
+    "id": "maui_mobile_md",
+    "bagType": "startup",
+    "title": "MAUI Mobile Host: App wiring and platform services context bag",
+    "anchorFiles": [
+      "NexusReader.Web.Client/Program.cs",
+      "NexusReader.Maui/MauiProgram.cs",
+      "NexusReader.Web/Program.cs",
+      "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+    ],
+    "includedFiles": [
+      {
+        "path": "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs",
+        "reason": "Selected as a high-value orchestration anchor within the document scope",
+        "source": "convention"
+      },
+      {
+        "path": "NexusReader.Infrastructure.Mobile/Services/MauiStorageService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Program.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure.Mobile/Class1.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/MauiProgram.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Maui/Platforms/Android/MainApplication.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/Services/MauiStorageService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web/Program.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/App.xaml.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/MainPage.xaml.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/Platforms/Android/MainActivity.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/_Imports.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/Main.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/NexusReader.Maui.csproj",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/DependencyInjection.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Layout/MainHubLayout.razor",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      }
+    ],
+    "relatedDomains": [
+      "auth"
+    ],
+    "relatedEntrypoints": [
+      "NexusReader.Web.Client/Program.cs",
+      "NexusReader.Maui/MauiProgram.cs",
+      "NexusReader.Web/Program.cs"
+    ],
+    "confidence": 0.96
+  }
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/context-bags/overview_md.context-bag.json b/src/.documentation/machine/context-bags/overview_md.context-bag.json
new file mode 100644
index 0000000..da2e1d8
--- /dev/null
+++ b/src/.documentation/machine/context-bags/overview_md.context-bag.json
@@ -0,0 +1,966 @@
+{
+  "generatedAt": "2026-05-22T06:34:42.298Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "overview.md",
+    "title": "Project Overview and Architecture",
+    "kind": "overview",
+    "scopeDescription": "High-level architecture, project boundaries, how the dotnet projects (Web, Web.Client, MAUI, Application, Domain, Infrastructure, Data, UI.Shared) fit together, runtime surfaces and deployment targets (server, WASM client, MAUI mobile), and major cross-cutting concerns (auth, real-time, AI/knowledge).",
+    "relativeOutputPath": "collections/overview.md",
+    "publicationTier": "primary",
+    "collectionId": "collections:collections",
+    "collectionKind": "collections"
+  },
+  "contextBag": {
+    "id": "overview_md",
+    "bagType": "auth",
+    "title": "Project Overview and Architecture context bag",
+    "anchorFiles": [
+      "NexusReader.Web.Client/Program.cs",
+      "NexusReader.Maui/MauiProgram.cs",
+      "NexusReader.Web/Program.cs"
+    ],
+    "includedFiles": [
+      {
+        "path": "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/IQueryHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Persistence/IEbookRepository.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IBillingService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IBookStorageService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IIdentityService.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/INativeStorageService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Library/IngestEbookCommandHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Library/IngestEbookRequest.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/DTOs/User/AuthorDto.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/DTOs/User/SubscriptionPlanDto.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/DTOs/User/UserProfileDto.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Mappings/MappingConfig.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQueryHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Library/GetMyEbooksQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Reader/GetReaderPageQueryHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/System/GetInitializationStatusQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/System/GetInitializationStatusQueryHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/User/GetUserProfileQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/User/GetUserProfileQueryHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/BillingService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Program.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IEpubMetadataExtractor.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IEpubReader.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Common/AppJsonContext.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Constants/PlanConstants.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Constants/StorageKeys.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/DependencyInjection.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/DTOs/AI/KnowledgePacket.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/DTOs/AI/RelevantContext.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Graph/GraphViewModels.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Quiz/QuizViewModels.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Reader/LocalEpubMetadata.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Queries/Reader/ViewModels.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Domain/Entities/Author.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Domain/Entities/Ebook.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Domain/Entities/KnowledgeUnit.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Domain/Entities/KnowledgeUnitLink.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Domain/Entities/NexusUser.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Domain/Entities/QuizResult.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Domain/Entities/SemanticKnowledgeCache.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Domain/Entities/SubscriptionPlan.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Domain/Enums/KnowledgeUnitType.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/PromptRegistry.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/MauiProgram.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Maui/Platforms/Android/MainApplication.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/Services/MauiStorageService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/FocusModeService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/IdentityService.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/IFocusModeService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/IKnowledgeGraphService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/IQuizStateService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/IReaderInteractionService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/IReaderNavigationService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/ISyncService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/IThemeService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/KnowledgeGraphService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/QuizStateService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/ReaderInteractionService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/ReaderNavigationService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/SyncService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/ThemeService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/WebStorageService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web/Program.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Web/Services/NativeStorageService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web/Services/ServerIdentityService.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/NexusReader.Application.csproj",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Domain/NexusReader.Domain.csproj",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Account/Register.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260428184727_InitialPostgres.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260428184727_InitialPostgres.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260429080302_AddQuizResults.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260429080302_AddQuizResults.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260503175906_FinalNormalizedSubscriptionArchitecture.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260503175906_FinalNormalizedSubscriptionArchitecture.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510151022_NormalizeAuthor.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510151022_NormalizeAuthor.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510171941_AddEbookLastChapterIndex.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510171941_AddEbookLastChapterIndex.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Migrations/AppDbContextModelSnapshot.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/AppDbContext.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/AppDbContextFactory.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/DbInitializer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513181743_AddEbookReadyFlag.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513181743_AddEbookReadyFlag.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513183726_FixKnowledgeUnitEbookId.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513183726_FixKnowledgeUnitEbookId.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513185108_MakeKnowledgeUnitEbookIdNullable.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513185108_MakeKnowledgeUnitEbookIdNullable.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.Designer.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/App.xaml.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/MainPage.xaml.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/Platforms/Android/MainActivity.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Layout/ReconnectModal.razor.js",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Data/NexusReader.Data.csproj",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/_Imports.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/Main.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/NexusReader.Maui.csproj",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/_Imports.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Atoms/NexusButton.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Atoms/NexusIcon.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Atoms/NexusSearchBox.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Atoms/NexusTypography.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Molecules/IntelligenceToolbar.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Molecules/KnowledgeCheck.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Organisms/GlobalIntelligencePanel.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Organisms/KnowledgeGraph.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Organisms/ReaderFooter.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/RedirectToLogin.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Layout/AuthLayout.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Layout/MainHubLayout.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Layout/ReaderLayout.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Layout/ReconnectModal.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/NexusReader.UI.Shared.csproj",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Account/Login.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Dashboard.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Home.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Intelligence.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Library.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/NotFound.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Settings.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Routes.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web/appsettings.Development.json",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web/appsettings.json",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web/Components/_Imports.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web/Components/App.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web/Components/Error.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web/Components/Pages/Error.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web/NexusReader.Web.csproj",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web/Properties/launchSettings.json",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      }
+    ],
+    "relatedDomains": [
+      "auth",
+      "account"
+    ],
+    "relatedEntrypoints": [
+      "NexusReader.Web.Client/Program.cs",
+      "NexusReader.Maui/MauiProgram.cs",
+      "NexusReader.Web/Program.cs"
+    ],
+    "confidence": 0.75
+  }
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/context-bags/realtime_and_sync_md.context-bag.json b/src/.documentation/machine/context-bags/realtime_and_sync_md.context-bag.json
new file mode 100644
index 0000000..cb420fb
--- /dev/null
+++ b/src/.documentation/machine/context-bags/realtime_and_sync_md.context-bag.json
@@ -0,0 +1,59 @@
+{
+  "generatedAt": "2026-05-22T06:53:53.174Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "realtime-and-sync.md",
+    "title": "Real-Time Sync, SignalR and Broadcast",
+    "kind": "flow",
+    "scopeDescription": "Explain real-time synchronization: SignalR Hub (SyncHub), SignalRSyncBroadcaster, ISyncBroadcaster abstraction, and client SyncService usage; include expected message flows for reading-progress updates and cross-client notifications.",
+    "relativeOutputPath": "flows/realtime-and-sync.md",
+    "publicationTier": "secondary",
+    "collectionId": "flows:flows",
+    "collectionKind": "flows"
+  },
+  "contextBag": {
+    "id": "realtime_and_sync_md",
+    "bagType": "integration",
+    "title": "Real-Time Sync, SignalR and Broadcast context bag",
+    "anchorFiles": [
+      "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+    ],
+    "includedFiles": [
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/SyncService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      }
+    ],
+    "relatedDomains": [],
+    "relatedEntrypoints": [
+      "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+    ],
+    "confidence": 0.57
+  }
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/context-bags/security_identity_auth_md.context-bag.json b/src/.documentation/machine/context-bags/security_identity_auth_md.context-bag.json
new file mode 100644
index 0000000..fd24dd0
--- /dev/null
+++ b/src/.documentation/machine/context-bags/security_identity_auth_md.context-bag.json
@@ -0,0 +1,71 @@
+{
+  "generatedAt": "2026-05-22T06:40:47.687Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "security-identity-auth.md",
+    "title": "Security, Identity and Authorization",
+    "kind": "security",
+    "scopeDescription": "Document identity and authorization pieces: TokenLimitHandler and TokenLimitRequirement, ProUserRequirement/ProUserHandler, ServerIdentityService, client and server identity flows, AuthenticationStateProvider, and where identity checks are enforced in handlers/controllers.",
+    "relativeOutputPath": "flows/security-identity-auth.md",
+    "publicationTier": "secondary",
+    "collectionId": "flows:flows",
+    "collectionKind": "flows"
+  },
+  "contextBag": {
+    "id": "security_identity_auth_md",
+    "bagType": "auth",
+    "title": "Security, Identity and Authorization context bag",
+    "anchorFiles": [
+      "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+      "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+      "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+    ],
+    "includedFiles": [
+      {
+        "path": "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+        "reason": "Selected as a high-value orchestration anchor within the document scope",
+        "source": "convention"
+      },
+      {
+        "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "reason": "Selected as a high-value orchestration anchor within the document scope",
+        "source": "convention"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+        "reason": "Selected as a high-value orchestration anchor within the document scope",
+        "source": "convention"
+      },
+      {
+        "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web/Services/ServerIdentityService.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Queries/User/GetUserProfileQuery.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      }
+    ],
+    "relatedDomains": [
+      "auth"
+    ],
+    "relatedEntrypoints": [],
+    "confidence": 0.75
+  }
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/context-bags/top_business_flows_md.context-bag.json b/src/.documentation/machine/context-bags/top_business_flows_md.context-bag.json
new file mode 100644
index 0000000..7e8415c
--- /dev/null
+++ b/src/.documentation/machine/context-bags/top_business_flows_md.context-bag.json
@@ -0,0 +1,156 @@
+{
+  "generatedAt": "2026-05-22T06:57:31.123Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "top-business-flows.md",
+    "title": "Top Business Flows",
+    "kind": "business-flow",
+    "scopeDescription": "Highest-value business flows that should be published as first-class system entry points.",
+    "relativeOutputPath": "business/top-business-flows.md",
+    "publicationTier": "primary",
+    "collectionId": "business:business",
+    "collectionKind": "business"
+  },
+  "contextBag": {
+    "id": "top_business_flows_md",
+    "bagType": "module",
+    "title": "Top Business Flows context bag",
+    "anchorFiles": [
+      "NexusReader.Web.Client/Program.cs",
+      "NexusReader.Maui/MauiProgram.cs",
+      "NexusReader.Web/Program.cs"
+    ],
+    "includedFiles": [
+      {
+        "path": "NexusReader.Maui/MauiProgram.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Web.Client/Program.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Web/Program.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Application/DTOs/User/AuthorDto.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Domain/Entities/Author.cs",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Layout/AuthLayout.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Account/Login.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Account/Register.razor",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+        "reason": "Included because it likely stabilizes the contracts or business data in this scope",
+        "source": "type-reference"
+      },
+      {
+        "path": "NexusReader.Application/DependencyInjection.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      }
+    ],
+    "relatedDomains": [
+      "auth",
+      "account"
+    ],
+    "relatedEntrypoints": [
+      "NexusReader.Web.Client/Program.cs",
+      "NexusReader.Maui/MauiProgram.cs",
+      "NexusReader.Web/Program.cs"
+    ],
+    "confidence": 0.75
+  }
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/context-bags/web_client_wasm_md.context-bag.json b/src/.documentation/machine/context-bags/web_client_wasm_md.context-bag.json
new file mode 100644
index 0000000..8c18ea4
--- /dev/null
+++ b/src/.documentation/machine/context-bags/web_client_wasm_md.context-bag.json
@@ -0,0 +1,120 @@
+{
+  "generatedAt": "2026-05-22T06:43:41.523Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "web-client-wasm.md",
+    "title": "Blazor WebAssembly Client: hosting, handlers, and platform services",
+    "kind": "service",
+    "scopeDescription": "Web client project (NexusReader.Web.Client): WASM hosting, authentication message handler(s), Wasm-specific services (WasmEpubService, WasmKnowledgeService), and integration points with the shared UI components and server APIs.",
+    "relativeOutputPath": "flows/web-client-wasm.md",
+    "publicationTier": "secondary",
+    "collectionId": "flows:flows",
+    "collectionKind": "flows"
+  },
+  "contextBag": {
+    "id": "web_client_wasm_md",
+    "bagType": "auth",
+    "title": "Blazor WebAssembly Client: hosting, handlers, and platform services context bag",
+    "anchorFiles": [
+      "NexusReader.Web.Client/Program.cs",
+      "NexusReader.Maui/MauiProgram.cs",
+      "NexusReader.Web/Program.cs"
+    ],
+    "includedFiles": [
+      {
+        "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Program.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+        "reason": "Included because it likely participates in the core orchestration path",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+        "reason": "Included because it belongs to the resolved document scope",
+        "source": "scope"
+      },
+      {
+        "path": "NexusReader.Maui/MauiProgram.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Web/Program.cs",
+        "reason": "Selected as an entrypoint anchor for this flow scope",
+        "source": "entrypoint"
+      },
+      {
+        "path": "NexusReader.Application/DependencyInjection.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      },
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "reason": "Included because it is called by an anchor method (call-chain widening)",
+        "source": "call-chain"
+      }
+    ],
+    "relatedDomains": [
+      "auth"
+    ],
+    "relatedEntrypoints": [
+      "NexusReader.Web.Client/Program.cs",
+      "NexusReader.Maui/MauiProgram.cs",
+      "NexusReader.Web/Program.cs"
+    ],
+    "confidence": 0.75
+  }
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/flow-catalog.json b/src/.documentation/machine/flow-catalog.json
new file mode 100644
index 0000000..5e29341
--- /dev/null
+++ b/src/.documentation/machine/flow-catalog.json
@@ -0,0 +1,18800 @@
+{
+  "generatedAt": "2026-05-22T06:57:31.149Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "stats": {
+    "documentCount": 10,
+    "candidateCount": 75,
+    "selectedCount": 46,
+    "rejectedCount": 29
+  },
+  "validation": {
+    "status": "warn",
+    "issueCount": 17,
+    "issues": [
+      {
+        "code": "weak-evidence",
+        "severity": "warn",
+        "flowId": "flow_maui_app_startup_and_composition",
+        "message": "Flow MAUI app startup and composition has weak evidence coverage for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_maui_app_startup_and_composition",
+        "message": "Flow MAUI app startup and composition is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_wasm_client_startup_and_di_validation",
+        "message": "Flow WASM client startup and DI validation is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "weak-evidence",
+        "severity": "warn",
+        "flowId": "flow_ai_groundedness_verification",
+        "message": "Flow AI groundedness verification has weak evidence coverage for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_reader_page_retrieval_and_progress_sync",
+        "message": "Flow Reader page retrieval and progress sync is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "weak-evidence",
+        "severity": "warn",
+        "flowId": "flow_maui_app_composition_and_handler_discovery",
+        "message": "Flow MAUI app composition and handler discovery has weak evidence coverage for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_maui_app_composition_and_handler_discovery",
+        "message": "Flow MAUI app composition and handler discovery is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_wasm_client_startup_and_di_validation",
+        "message": "Flow WASM client startup and DI validation is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "weak-evidence",
+        "severity": "warn",
+        "flowId": "flow_epub_content_retrieval_flow",
+        "message": "Flow Epub Content Retrieval Flow has weak evidence coverage for publication."
+      },
+      {
+        "code": "weak-evidence",
+        "severity": "warn",
+        "flowId": "flow_maui_app_startup_flow",
+        "message": "Flow MAUI App Startup Flow has weak evidence coverage for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_maui_app_startup_flow",
+        "message": "Flow MAUI App Startup Flow is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_mobile_api_http_flow",
+        "message": "Flow Mobile -> API HTTP Flow is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_schema_evolution_via_ef_core_migrations",
+        "message": "Flow Schema evolution via EF Core migrations is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "weak-evidence",
+        "severity": "warn",
+        "flowId": "flow_app_composition_and_maui_bootstrap",
+        "message": "Flow App composition and MAUI bootstrap has weak evidence coverage for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_app_composition_and_maui_bootstrap",
+        "message": "Flow App composition and MAUI bootstrap is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_wasm_di_bootstrap_stub_registration",
+        "message": "Flow WASM DI bootstrap & stub registration is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_token_authorization_flow",
+        "message": "Flow Token Authorization Flow is too flat and does not preserve enough execution truth for publication."
+      }
+    ]
+  },
+  "documents": [
+    {
+      "documentFilename": "application-layer.md",
+      "documentTitle": "Application Layer: Commands, Queries and DTOs",
+      "relativeOutputPath": "domains/application-layer.md",
+      "collectionKind": "domains",
+      "publicationTier": "secondary",
+      "candidates": [
+        {
+          "flow": {
+            "id": "flow_ai_groundedness_verification",
+            "name": "AI groundedness verification",
+            "description": "AI groundedness verification starts at NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs and follows 5 grounded steps: Enter Handle -> Returns result -> Returns service result directly -> Call Verify Groundedness Async -> ....",
+            "capabilityId": "capability_ai_groundedness_verification",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+              "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_application_commands_ai_verifygroundednesscommand_cs_handle_entry",
+                "label": "Enter Handle",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+                  "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_ai_verifygroundednesscommand_cs_handle_handle_return_20_0",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_ai_verifygroundednesscommand_cs_handle_return_20",
+                "label": "Returns service result directly",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_ai_verifygroundednesscommand_cs_handle_nexusreader_application_abstractions_services_iknowledgeservice_cs_verifygroundednessasync_20",
+                "label": "Call Verify Groundedness Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+                  "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_ai_verifygroundednesscommand_cs_handle_external_call",
+                "label": "await _knowledgeService.VerifyGroundednessAsync(...)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+              "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "low",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_ai_groundedness_verification",
+            "name": "AI groundedness verification",
+            "rank": 1,
+            "score": 0.875,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.76,
+              "architectureCoverage": 0.75,
+              "executionTruth": 0.98,
+              "userComprehension": 0.9
+            },
+            "reason": "Ranked because AI groundedness verification combines business value 0.95, evidence strength 0.76, architecture coverage 0.75, execution truth 0.98, and comprehension 0.90 for a total score of 0.88.",
+            "evidencePaths": [
+              "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+              "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "low"
+          },
+          "selection": {
+            "flowId": "flow_ai_groundedness_verification",
+            "name": "AI groundedness verification",
+            "state": "rejected",
+            "rank": 1,
+            "score": 0.875,
+            "reason": "Rejected because AI groundedness verification has validation issues: weak-evidence.",
+            "evidencePaths": [
+              "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+              "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "low",
+            "validationIssues": [
+              {
+                "code": "weak-evidence",
+                "severity": "warn",
+                "flowId": "flow_ai_groundedness_verification",
+                "message": "Flow AI groundedness verification has weak evidence coverage for publication."
+              }
+            ]
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ensure_database_initialized",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "rank": 2,
+            "score": 0.873,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.85,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Ensure Database Initialized combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "state": "selected",
+            "rank": 2,
+            "score": 0.873,
+            "reason": "Selected because Ensure Database Initialized ranked #2 with score 0.87 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_handle_subscription_success",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "rank": 3,
+            "score": 0.873,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.85,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Handle Subscription Success combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "state": "selected",
+            "rank": 3,
+            "score": 0.873,
+            "reason": "Selected because Handle Subscription Success ranked #3 with score 0.87 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_program_top_level",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_program_top_level",
+            "name": "Program (top level)",
+            "rank": 4,
+            "score": 0.873,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.85,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Program (top level) combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_program_top_level",
+            "name": "Program (top level)",
+            "state": "selected",
+            "rank": 4,
+            "score": 0.873,
+            "reason": "Selected because Program (top level) ranked #4 with score 0.87 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_web_minimal_api_application_handler_dispatch",
+            "name": "Web Minimal API → Application handler dispatch",
+            "description": "Web Minimal API → Application handler dispatch starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_web_minimal_api_application_handler_dispatch",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_web_minimal_api_application_handler_dispatch",
+            "name": "Web Minimal API → Application handler dispatch",
+            "rank": 5,
+            "score": 0.873,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.85,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Web Minimal API → Application handler dispatch combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_web_minimal_api_application_handler_dispatch",
+            "name": "Web Minimal API → Application handler dispatch",
+            "state": "selected",
+            "rank": 5,
+            "score": 0.873,
+            "reason": "Selected because Web Minimal API → Application handler dispatch ranked #5 with score 0.87 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_semantic_search_library_qa",
+            "name": "Semantic search / Library QA",
+            "description": "Semantic search / Library QA starts at NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs and follows 8 grounded steps: Enter Handle -> Evaluates branch condition -> Returns result -> Reads repository or persistence state -> ....",
+            "capabilityId": "capability_semantic_search_library_qa",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+              "NexusReader.Data.Persistence/AppDbContext.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_application_queries_library_searchlibrarysemanticallyquery_cs_handle_entry",
+                "label": "Enter Handle",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+                  "NexusReader.Data.Persistence/AppDbContext.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_queries_library_searchlibrarysemanticallyquery_cs_handle_handle_branch_43_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_queries_library_searchlibrarysemanticallyquery_cs_handle_handle_return_45_1",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_queries_library_searchlibrarysemanticallyquery_cs_handle_handle_repository_read_55_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_queries_library_searchlibrarysemanticallyquery_cs_handle_return_61",
+                "label": "Return mapped results",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_queries_library_searchlibrarysemanticallyquery_cs_handle_nexusreader_data_persistence_appdbcontext_cs_semanticknowledgecache_54",
+                "label": "Call Semantic Knowledge Cache",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+                  "NexusReader.Data.Persistence/AppDbContext.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_queries_library_searchlibrarysemanticallyquery_cs_handle_external_call",
+                "label": "Calls IEmbeddingGenerator.GenerateAsync with the request.QueryText (external/AI service)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_queries_library_searchlibrarysemanticallyquery_cs_handle_persistence_read",
+                "label": ".Where(c => c.TenantId == request.TenantId && c.Embedding != null)",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+              "NexusReader.Data.Persistence/AppDbContext.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_semantic_search_library_qa",
+            "name": "Semantic search / Library QA",
+            "rank": 6,
+            "score": 0.858,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.85,
+              "architectureCoverage": 0.917,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Semantic search / Library QA combines business value 0.95, evidence strength 0.85, architecture coverage 0.92, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+              "NexusReader.Data.Persistence/AppDbContext.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_semantic_search_library_qa",
+            "name": "Semantic search / Library QA",
+            "state": "rejected",
+            "rank": 6,
+            "score": 0.858,
+            "reason": "Rejected because Semantic search / Library QA ranked #6, outside the top 5 publication slots.",
+            "evidencePaths": [
+              "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+              "NexusReader.Data.Persistence/AppDbContext.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_ebook_ingestion",
+            "name": "Ebook ingestion",
+            "description": "Ebook ingestion starts at NexusReader.Application/Commands/Library/IngestEbookCommand.cs and follows 5 grounded steps: API constructs Ingest Ebook Command with metadata and EPUB payload -> Mediator dispatches to Ingest Ebook Command Handler -> Handler stores binary assets via IBook Storage Service -> Handler maps DTO to domain entities (Mapster) and persists via IEbook Repository/App Db Context -> ....",
+            "capabilityId": "capability_ebook_ingestion",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "ebook_ingestion_1",
+                "label": "API constructs Ingest Ebook Command with metadata and EPUB payload",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "ebook_ingestion_2",
+                "label": "Mediator dispatches to Ingest Ebook Command Handler",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "ebook_ingestion_3",
+                "label": "Handler stores binary assets via IBook Storage Service",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "ebook_ingestion_4",
+                "label": "Handler maps DTO to domain entities (Mapster) and persists via IEbook Repository/App Db Context",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "ebook_ingestion_5",
+                "label": "Post persist: enqueue/trigger semantic indexing and AI groundedness verification jobs; return created Ebook Id",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_ebook_ingestion",
+            "name": "Ebook ingestion",
+            "rank": 7,
+            "score": 0.854,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 1,
+              "architectureCoverage": 0.833,
+              "executionTruth": 0.66,
+              "userComprehension": 0.82
+            },
+            "reason": "Ranked because Ebook ingestion combines business value 0.95, evidence strength 1.00, architecture coverage 0.83, execution truth 0.66, and comprehension 0.82 for a total score of 0.85.",
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_ebook_ingestion",
+            "name": "Ebook ingestion",
+            "state": "rejected",
+            "rank": 7,
+            "score": 0.854,
+            "reason": "Rejected because Ebook ingestion ranked #7, outside the top 5 publication slots.",
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_quiz_answer_submission",
+            "name": "Quiz answer submission",
+            "description": "Quiz answer submission starts at NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs and follows 7 grounded steps: Enter Handle -> Evaluates branch condition -> Return success Result -> Returns result -> ....",
+            "capabilityId": "capability_quiz_answer_submission",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_application_commands_quiz_submitanswercommandhandler_cs_handle_entry",
+                "label": "Enter Handle",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_quiz_submitanswercommandhandler_cs_handle_handle_branch_18_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_quiz_submitanswercommandhandler_cs_handle_return_21",
+                "label": "Return success Result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_quiz_submitanswercommandhandler_cs_handle_handle_return_21_1",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_quiz_submitanswercommandhandler_cs_handle_return_24",
+                "label": "Return failure Result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_quiz_submitanswercommandhandler_cs_handle_nexusreader_application_abstractions_services_vibrateasync_20",
+                "label": "Call Vibrate Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_quiz_submitanswercommandhandler_cs_handle_external_call",
+                "label": "await _platformService.VibrateAsync(50)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "medium",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_quiz_answer_submission",
+            "name": "Quiz answer submission",
+            "rank": 8,
+            "score": 0.854,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.794,
+              "architectureCoverage": 0.833,
+              "executionTruth": 1,
+              "userComprehension": 0.42
+            },
+            "reason": "Ranked because Quiz answer submission combines business value 0.95, evidence strength 0.79, architecture coverage 0.83, execution truth 1.00, and comprehension 0.42 for a total score of 0.85.",
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "medium"
+          },
+          "selection": {
+            "flowId": "flow_quiz_answer_submission",
+            "name": "Quiz answer submission",
+            "state": "rejected",
+            "rank": 8,
+            "score": 0.854,
+            "reason": "Rejected because Quiz answer submission ranked #8, outside the top 5 publication slots.",
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "medium",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_reader_page_retrieval_and_progress_sync",
+            "name": "Reader page retrieval and progress sync",
+            "description": "Reader page retrieval and progress sync starts at NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs and follows 5 grounded steps: Client requests Get Reader Page Query or sends Update Reading Progress Command -> Get Reader Page Query Handler uses IEpub Reader and Mapster to build Reader Page View Model -> Update Reading Progress Command Handler updates progress via App Db Context -> Update Reading Progress Command Handler broadcasts updates via ISync Broadcaster to other clients (excluding origin) -> ....",
+            "capabilityId": "capability_reader_page_retrieval_and_progress_sync",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "reader_page_retrieval_and_progress_sync_1",
+                "label": "Client requests Get Reader Page Query or sends Update Reading Progress Command",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "reader_page_retrieval_and_progress_sync_2",
+                "label": "Get Reader Page Query Handler uses IEpub Reader and Mapster to build Reader Page View Model",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "reader_page_retrieval_and_progress_sync_3",
+                "label": "Update Reading Progress Command Handler updates progress via App Db Context",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "reader_page_retrieval_and_progress_sync_4",
+                "label": "Update Reading Progress Command Handler broadcasts updates via ISync Broadcaster to other clients (excluding origin)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "reader_page_retrieval_and_progress_sync_5",
+                "label": "Handlers return Fluent Results wrapped DTOs or status",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_reader_page_retrieval_and_progress_sync",
+            "name": "Reader page retrieval and progress sync",
+            "rank": 9,
+            "score": 0.72,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 1,
+              "architectureCoverage": 0.75,
+              "executionTruth": 0.18,
+              "userComprehension": 0.82
+            },
+            "reason": "Ranked because Reader page retrieval and progress sync combines business value 0.95, evidence strength 1.00, architecture coverage 0.75, execution truth 0.18, and comprehension 0.82 for a total score of 0.72.",
+            "evidencePaths": [
+              "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_reader_page_retrieval_and_progress_sync",
+            "name": "Reader page retrieval and progress sync",
+            "state": "rejected",
+            "rank": 9,
+            "score": 0.72,
+            "reason": "Rejected because Reader page retrieval and progress sync has validation issues: flat-flow.",
+            "evidencePaths": [
+              "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": [
+              {
+                "code": "flat-flow",
+                "severity": "warn",
+                "flowId": "flow_reader_page_retrieval_and_progress_sync",
+                "message": "Flow Reader page retrieval and progress sync is too flat and does not preserve enough execution truth for publication."
+              }
+            ]
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_maui_app_composition_and_handler_discovery",
+            "name": "MAUI app composition and handler discovery",
+            "description": "MAUI app composition and handler discovery starts at NexusReader.Maui/MauiProgram.cs and follows 4 grounded steps: Enter Create Maui App -> Returns result -> Call Add Application -> Call Dependency Injection.",
+            "capabilityId": "capability_maui_app_composition_and_handler_discovery",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_entry",
+                "label": "Enter Create Maui App",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_createmauiapp_return_57_0",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_nexusreader_application_addapplication_51",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_nexusreader_application_dependencyinjection_assembly_54",
+                "label": "Call Dependency Injection",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "low",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_maui_app_composition_and_handler_discovery",
+            "name": "MAUI app composition and handler discovery",
+            "rank": 10,
+            "score": 0.683,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.76,
+              "architectureCoverage": 0.667,
+              "executionTruth": 0.37,
+              "userComprehension": 0.66
+            },
+            "reason": "Ranked because MAUI app composition and handler discovery combines business value 0.95, evidence strength 0.76, architecture coverage 0.67, execution truth 0.37, and comprehension 0.66 for a total score of 0.68.",
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "low"
+          },
+          "selection": {
+            "flowId": "flow_maui_app_composition_and_handler_discovery",
+            "name": "MAUI app composition and handler discovery",
+            "state": "rejected",
+            "rank": 10,
+            "score": 0.683,
+            "reason": "Rejected because MAUI app composition and handler discovery has validation issues: weak-evidence, flat-flow.",
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "low",
+            "validationIssues": [
+              {
+                "code": "weak-evidence",
+                "severity": "warn",
+                "flowId": "flow_maui_app_composition_and_handler_discovery",
+                "message": "Flow MAUI app composition and handler discovery has weak evidence coverage for publication."
+              },
+              {
+                "code": "flat-flow",
+                "severity": "warn",
+                "flowId": "flow_maui_app_composition_and_handler_discovery",
+                "message": "Flow MAUI app composition and handler discovery is too flat and does not preserve enough execution truth for publication."
+              }
+            ]
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_knowledge_graph_retrieval",
+            "name": "Knowledge graph retrieval",
+            "description": "Knowledge graph retrieval starts at NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs and follows 3 grounded steps: Get Knowledge Graph Query dispatched -> Handler delegates to IKnowledge Service to build/assemble graph data -> Graph Data Dto mapped and returned (JSON source gen used for serialization).",
+            "capabilityId": "capability_knowledge_graph_retrieval",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "knowledge_graph_retrieval_1",
+                "label": "Get Knowledge Graph Query dispatched",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "knowledge_graph_retrieval_2",
+                "label": "Handler delegates to IKnowledge Service to build/assemble graph data",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              },
+              {
+                "id": "knowledge_graph_retrieval_3",
+                "label": "Graph Data Dto mapped and returned (JSON source gen used for serialization)",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.875,
+            "evidencePaths": [
+              "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "medium",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_knowledge_graph_retrieval",
+            "name": "Knowledge graph retrieval",
+            "rank": 11,
+            "score": 0.671,
+            "scoreBreakdown": {
+              "businessValue": 0.875,
+              "evidenceStrength": 0.88,
+              "architectureCoverage": 0.75,
+              "executionTruth": 0.36,
+              "userComprehension": 0.34
+            },
+            "reason": "Ranked because Knowledge graph retrieval combines business value 0.88, evidence strength 0.88, architecture coverage 0.75, execution truth 0.36, and comprehension 0.34 for a total score of 0.67.",
+            "evidencePaths": [
+              "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "medium"
+          },
+          "selection": {
+            "flowId": "flow_knowledge_graph_retrieval",
+            "name": "Knowledge graph retrieval",
+            "state": "rejected",
+            "rank": 11,
+            "score": 0.671,
+            "reason": "Rejected because Knowledge graph retrieval ranked #11, outside the top 5 publication slots.",
+            "evidencePaths": [
+              "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "medium",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_wasm_client_startup_and_di_validation",
+            "name": "WASM client startup and DI validation",
+            "description": "WASM client startup and DI validation starts at NexusReader.Web.Client/Program.cs and follows 8 grounded steps: Enter Program (top level startup) -> Call Throwing Db Context Factory. -> Call Throwing Embedding Generator. -> Call Throwing Book Storage Service. -> ....",
+            "capabilityId": "capability_wasm_client_startup_and_di_validation",
+            "domainIds": [
+              "ai",
+              "ai_action",
+              "ai_tokens",
+              "ai_verification",
+              "ai_knowledge",
+              "answer",
+              "answering",
+              "application_health_readiness",
+              "auth",
+              "author",
+              "billing",
+              "book",
+              "chapter",
+              "chapter_readerpage",
+              "citation",
+              "command",
+              "contentblock",
+              "context_snippet",
+              "cosinedistance",
+              "coverimage",
+              "device_sync_broadcast",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebooks_lastreadbook",
+              "embedding",
+              "epub",
+              "graph",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "ingestion_progress",
+              "initializationstatus",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph",
+              "knowledge_retrieval",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgeservice",
+              "knowledgeunit",
+              "lastreadbookdto",
+              "library",
+              "library_question",
+              "link",
+              "metadata",
+              "nexususer",
+              "nexususer_identity",
+              "node",
+              "options",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_state",
+              "quizquestion",
+              "quizresults",
+              "reader_navigation",
+              "reader_session_content",
+              "readerpage",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "roles",
+              "search_result",
+              "semantic_search",
+              "semanticknowledgecache",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "theme_focus_mode",
+              "user",
+              "user_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_entry",
+                "label": "Enter Program (top level startup)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingdbcontextfactory_ctor_49",
+                "label": "Call Throwing Db Context Factory.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingembeddinggenerator_ctor_50",
+                "label": "Call Throwing Embedding Generator.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingbookstorageservice_ctor_51",
+                "label": "Call Throwing Book Storage Service.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingebookrepository_ctor_52",
+                "label": "Call Throwing Ebook Repository.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingsyncbroadcaster_ctor_53",
+                "label": "Call Throwing Sync Broadcaster.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_nexusreader_application_addapplication_55",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_result",
+                "label": "Complete Program (top level startup)",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_wasm_client_startup_and_di_validation",
+            "name": "WASM client startup and DI validation",
+            "rank": 12,
+            "score": 0.566,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.775,
+              "architectureCoverage": 0.667,
+              "executionTruth": 0.11,
+              "userComprehension": 0.1
+            },
+            "reason": "Ranked because WASM client startup and DI validation combines business value 0.95, evidence strength 0.78, architecture coverage 0.67, execution truth 0.11, and comprehension 0.10 for a total score of 0.57.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_wasm_client_startup_and_di_validation",
+            "name": "WASM client startup and DI validation",
+            "state": "rejected",
+            "rank": 12,
+            "score": 0.566,
+            "reason": "Rejected because WASM client startup and DI validation has validation issues: flat-flow.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": [
+              {
+                "code": "flat-flow",
+                "severity": "warn",
+                "flowId": "flow_wasm_client_startup_and_di_validation",
+                "message": "Flow WASM client startup and DI validation is too flat and does not preserve enough execution truth for publication."
+              }
+            ]
+          }
+        }
+      ]
+    },
+    {
+      "documentFilename": "business-overview.md",
+      "documentTitle": "Business Overview",
+      "relativeOutputPath": "business/business-overview.md",
+      "collectionKind": "business",
+      "publicationTier": "primary",
+      "candidates": [
+        {
+          "flow": {
+            "id": "flow_authentication_login_register_flow",
+            "name": "Authentication (Login/Register) Flow",
+            "description": "Authentication (Login/Register) Flow starts at NexusReader.UI.Shared/Pages/Account/Login.razor and follows 9 grounded steps: Enter Handle Login -> Falls back to alternate path -> Evaluates branch condition -> Reads repository or persistence state -> ....",
+            "capabilityId": "capability_authentication_login_register_flow",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.UI.Shared/Pages/Account/Login.razor",
+              "NexusReader.UI.Shared/Services/IIdentityService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_entry",
+                "label": "Enter Handle Login",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor",
+                  "NexusReader.UI.Shared/Services/IIdentityService.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_handlelogin_fallback_139_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_handlelogin_branch_134_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_handlelogin_repository_read_141_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_nexusreader_ui_shared_services_iidentityservice_cs_loginasync_133",
+                "label": "Call Login Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor",
+                  "NexusReader.UI.Shared/Services/IIdentityService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_unknown_nexusauth_submitloginform_js_via_ijsruntime_137",
+                "label": "Call nexus Auth",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_external_call",
+                "label": "await IdentityService.LoginAsync(...)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_persistence_read",
+                "label": "_errorMessage = result.Errors.FirstOrDefault()?.Message ?? \"Nieprawidłowy e-mail lub hasło.\";",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_result",
+                "label": "Complete Handle Login",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor",
+                  "NexusReader.UI.Shared/Services/IIdentityService.cs",
+                  "unknown"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Pages/Account/Login.razor",
+              "NexusReader.UI.Shared/Services/IIdentityService.cs",
+              "unknown",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_authentication_login_register_flow",
+            "name": "Authentication (Login/Register) Flow",
+            "rank": 1,
+            "score": 0.861,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.8,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Authentication (Login/Register) Flow combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Pages/Account/Login.razor",
+              "NexusReader.UI.Shared/Services/IIdentityService.cs",
+              "unknown",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_authentication_login_register_flow",
+            "name": "Authentication (Login/Register) Flow",
+            "state": "selected",
+            "rank": 1,
+            "score": 0.861,
+            "reason": "Selected because Authentication (Login/Register) Flow ranked #1 with score 0.86 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Pages/Account/Login.razor",
+              "NexusReader.UI.Shared/Services/IIdentityService.cs",
+              "unknown",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ensure_database_initialized",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "rank": 2,
+            "score": 0.861,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.8,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Ensure Database Initialized combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "state": "selected",
+            "rank": 2,
+            "score": 0.861,
+            "reason": "Selected because Ensure Database Initialized ranked #2 with score 0.86 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_handle_subscription_success",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "rank": 3,
+            "score": 0.861,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.8,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Handle Subscription Success combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "state": "selected",
+            "rank": 3,
+            "score": 0.861,
+            "reason": "Selected because Handle Subscription Success ranked #3 with score 0.86 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_knowledge_query_api_flow",
+            "name": "Knowledge Query API Flow",
+            "description": "Knowledge Query API Flow starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_knowledge_query_api_flow",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_knowledge_query_api_flow",
+            "name": "Knowledge Query API Flow",
+            "rank": 4,
+            "score": 0.861,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.8,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Knowledge Query API Flow combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_knowledge_query_api_flow",
+            "name": "Knowledge Query API Flow",
+            "state": "selected",
+            "rank": 4,
+            "score": 0.861,
+            "reason": "Selected because Knowledge Query API Flow ranked #4 with score 0.86 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_program_top_level",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_program_top_level",
+            "name": "Program (top level)",
+            "rank": 5,
+            "score": 0.861,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.8,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Program (top level) combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_program_top_level",
+            "name": "Program (top level)",
+            "state": "selected",
+            "rank": 5,
+            "score": 0.861,
+            "reason": "Selected because Program (top level) ranked #5 with score 0.86 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_http_request_token_refresh_flow",
+            "name": "HTTP Request + Token Refresh Flow",
+            "description": "HTTP Request + Token Refresh Flow starts at NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs and follows 12 grounded steps: Enter Send Async -> Falls back to alternate path -> Calls external dependency -> Evaluates branch condition -> ....",
+            "capabilityId": "capability_http_request_token_refresh_flow",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_entry",
+                "label": "Enter Send Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "self",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_fallback_73_6",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_external_call_27_0",
+                "label": "Calls external dependency",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_branch_45_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_return_95_11",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_return_109",
+                "label": "Return response",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_self_clonehttprequestmessageasync_93",
+                "label": "Call Clone Http Request Message Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_getsecurestring_47",
+                "label": "Call Get Secure String",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_refreshtokenasync_78",
+                "label": "Call Refresh Token Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_logoutasync_87",
+                "label": "Call Logout Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
+                "label": "protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
+                "label": "var response = await base.SendAsync(request, cancellationToken);",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_http_request_token_refresh_flow",
+            "name": "HTTP Request + Token Refresh Flow",
+            "rank": 6,
+            "score": 0.825,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.7,
+              "architectureCoverage": 0.917,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because HTTP Request + Token Refresh Flow combines business value 0.95, evidence strength 0.70, architecture coverage 0.92, execution truth 1.00, and comprehension 0.18 for a total score of 0.82.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_http_request_token_refresh_flow",
+            "name": "HTTP Request + Token Refresh Flow",
+            "state": "rejected",
+            "rank": 6,
+            "score": 0.825,
+            "reason": "Rejected because HTTP Request + Token Refresh Flow ranked #6, outside the top 5 publication slots.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        }
+      ]
+    },
+    {
+      "documentFilename": "data-and-persistence.md",
+      "documentTitle": "Data Layer, EF Core and Repositories",
+      "relativeOutputPath": "domains/data-and-persistence.md",
+      "collectionKind": "domains",
+      "publicationTier": "secondary",
+      "candidates": [
+        {
+          "flow": {
+            "id": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ensure_database_initialized",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "rank": 1,
+            "score": 0.873,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.85,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Ensure Database Initialized combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "state": "selected",
+            "rank": 1,
+            "score": 0.873,
+            "reason": "Selected because Ensure Database Initialized ranked #1 with score 0.87 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_handle_subscription_success",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "rank": 2,
+            "score": 0.873,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.85,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Handle Subscription Success combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "state": "selected",
+            "rank": 2,
+            "score": 0.873,
+            "reason": "Selected because Handle Subscription Success ranked #2 with score 0.87 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_program_top_level",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_program_top_level",
+            "name": "Program (top level)",
+            "rank": 3,
+            "score": 0.873,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.85,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Program (top level) combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_program_top_level",
+            "name": "Program (top level)",
+            "state": "selected",
+            "rank": 3,
+            "score": 0.873,
+            "reason": "Selected because Program (top level) ranked #3 with score 0.87 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_runtime_data_access_repositories_appdbcontext",
+            "name": "Runtime data access (repositories -> AppDbContext)",
+            "description": "Runtime data access (repositories -> AppDbContext) starts at Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs) and follows 4 grounded steps: API minimal endpoints or Mediat R handlers receive requests -> Handlers call IEbook Repository (or other repo interfaces) -> Ebook Repository uses App Db Context Db Sets to query/add/update entities and sets domain defaults (e.g -> Save Changes Async commits unit of work to database.",
+            "capabilityId": "capability_runtime_data_access_repositories_appdbcontext",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "runtime_data_access_repositories_appdbcontext_1",
+                "label": "API minimal endpoints or Mediat R handlers receive requests",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "runtime_data_access_repositories_appdbcontext_2",
+                "label": "Handlers call IEbook Repository (or other repo interfaces)",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "runtime_data_access_repositories_appdbcontext_3",
+                "label": "Ebook Repository uses App Db Context Db Sets to query/add/update entities and sets domain defaults (e.g",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "runtime_data_access_repositories_appdbcontext_4",
+                "label": "Save Changes Async commits unit of work to database",
+                "kind": "result",
+                "evidencePaths": [
+                  "Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_runtime_data_access_repositories_appdbcontext",
+            "name": "Runtime data access (repositories -> AppDbContext)",
+            "rank": 4,
+            "score": 0.841,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 1,
+              "architectureCoverage": 0.833,
+              "executionTruth": 0.67,
+              "userComprehension": 0.66
+            },
+            "reason": "Ranked because Runtime data access (repositories -> AppDbContext) combines business value 0.95, evidence strength 1.00, architecture coverage 0.83, execution truth 0.67, and comprehension 0.66 for a total score of 0.84.",
+            "evidencePaths": [
+              "Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_runtime_data_access_repositories_appdbcontext",
+            "name": "Runtime data access (repositories -> AppDbContext)",
+            "state": "selected",
+            "rank": 4,
+            "score": 0.841,
+            "reason": "Selected because Runtime data access (repositories -> AppDbContext) ranked #4 with score 0.84 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_database_initialization_and_seeding_robust_startup",
+            "name": "Database initialization and seeding (robust startup)",
+            "description": "Database initialization and seeding (robust startup) starts at NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs and follows 5 grounded steps: Web app startup registers App Db Context and Db Context Factory -> Ensure Database Initialized/Db Initializer invoked (wrapped with retry/backoff) -> IDb Context Factory or scoped App Db Context used to apply pending migrations (Database -> Db Initializer performs idempotent seed: Subscription Plans, Roles, Admin user (hash via IPassword Hasher), sample Author/Ebook -> ....",
+            "capabilityId": "capability_database_initialization_and_seeding_robust_startup",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "database_initialization_and_seeding_robust_startup_1",
+                "label": "Web app startup registers App Db Context and Db Context Factory",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "database_initialization_and_seeding_robust_startup_2",
+                "label": "Ensure Database Initialized/Db Initializer invoked (wrapped with retry/backoff)",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "database_initialization_and_seeding_robust_startup_3",
+                "label": "IDb Context Factory or scoped App Db Context used to apply pending migrations (Database",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "database_initialization_and_seeding_robust_startup_4",
+                "label": "Db Initializer performs idempotent seed: Subscription Plans, Roles, Admin user (hash via IPassword Hasher), sample Author/Ebook",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "database_initialization_and_seeding_robust_startup_5",
+                "label": "Commit changes; application services rely on seeded rows",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_database_initialization_and_seeding_robust_startup",
+            "name": "Database initialization and seeding (robust startup)",
+            "rank": 5,
+            "score": 0.797,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 1,
+              "architectureCoverage": 0.833,
+              "executionTruth": 0.43,
+              "userComprehension": 0.82
+            },
+            "reason": "Ranked because Database initialization and seeding (robust startup) combines business value 0.95, evidence strength 1.00, architecture coverage 0.83, execution truth 0.43, and comprehension 0.82 for a total score of 0.80.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_database_initialization_and_seeding_robust_startup",
+            "name": "Database initialization and seeding (robust startup)",
+            "state": "selected",
+            "rank": 5,
+            "score": 0.797,
+            "reason": "Selected because Database initialization and seeding (robust startup) ranked #5 with score 0.80 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_schema_evolution_via_ef_core_migrations",
+            "name": "Schema evolution via EF Core migrations",
+            "description": "Schema evolution via EF Core migrations starts at NexusReader.Data/Migrations and NexusReader.Data/Persistence/AppDbContextFactory.cs and follows 4 grounded steps: Developers scaffold migrations using dotnet ef which uses App Db Context Factory to build model -> Migration classes (.cs and .Designer -> Apply migrations via dotnet ef or let app call Database -> Schema evolves (initial schema  > quiz results  > author normalization  > ebook progress/flags/description  > knowledge unit FK fixes  > normalized subscription changes) and seed data updated.",
+            "capabilityId": "capability_schema_evolution_via_ef_core_migrations",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Data/Migrations and NexusReader.Data/Persistence/AppDbContextFactory.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "schema_evolution_via_ef_core_migrations_1",
+                "label": "Developers scaffold migrations using dotnet ef which uses App Db Context Factory to build model",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Data/Migrations and NexusReader.Data/Persistence/AppDbContextFactory.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "schema_evolution_via_ef_core_migrations_2",
+                "label": "Migration classes (.cs and .Designer",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Data/Migrations and NexusReader.Data/Persistence/AppDbContextFactory.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "schema_evolution_via_ef_core_migrations_3",
+                "label": "Apply migrations via dotnet ef or let app call Database",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Data/Migrations and NexusReader.Data/Persistence/AppDbContextFactory.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "schema_evolution_via_ef_core_migrations_4",
+                "label": "Schema evolves (initial schema  > quiz results  > author normalization  > ebook progress/flags/description  > knowledge unit FK fixes  > normalized subscription changes) and seed data updated",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Data/Migrations and NexusReader.Data/Persistence/AppDbContextFactory.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Data/Migrations and NexusReader.Data/Persistence/AppDbContextFactory.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_schema_evolution_via_ef_core_migrations",
+            "name": "Schema evolution via EF Core migrations",
+            "rank": 6,
+            "score": 0.766,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 1,
+              "architectureCoverage": 0.833,
+              "executionTruth": 0.37,
+              "userComprehension": 0.66
+            },
+            "reason": "Ranked because Schema evolution via EF Core migrations combines business value 0.95, evidence strength 1.00, architecture coverage 0.83, execution truth 0.37, and comprehension 0.66 for a total score of 0.77.",
+            "evidencePaths": [
+              "NexusReader.Data/Migrations and NexusReader.Data/Persistence/AppDbContextFactory.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_schema_evolution_via_ef_core_migrations",
+            "name": "Schema evolution via EF Core migrations",
+            "state": "rejected",
+            "rank": 6,
+            "score": 0.766,
+            "reason": "Rejected because Schema evolution via EF Core migrations has validation issues: flat-flow.",
+            "evidencePaths": [
+              "NexusReader.Data/Migrations and NexusReader.Data/Persistence/AppDbContextFactory.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": [
+              {
+                "code": "flat-flow",
+                "severity": "warn",
+                "flowId": "flow_schema_evolution_via_ef_core_migrations",
+                "message": "Flow Schema evolution via EF Core migrations is too flat and does not preserve enough execution truth for publication."
+              }
+            ]
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_provider_aware_query_and_provider_specific_features",
+            "name": "Provider-aware query and provider-specific features",
+            "description": "Provider-aware query and provider-specific features starts at NexusReader.Infrastructure/Persistence/EbookRepository.cs and NexusReader.Data/Persistence/AppDbContext.cs and follows 3 grounded steps: Repository query logic detects database provider (e.g -> Uses EF.Functions -> App Db Context configures pgvector extension and vector columns/indexes when Postgres provider is selected.",
+            "capabilityId": "capability_provider_aware_query_and_provider_specific_features",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs and NexusReader.Data/Persistence/AppDbContext.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "provider_aware_query_and_provider_specific_features_1",
+                "label": "Repository query logic detects database provider (e.g",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs and NexusReader.Data/Persistence/AppDbContext.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "provider_aware_query_and_provider_specific_features_2",
+                "label": "Uses EF.Functions",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs and NexusReader.Data/Persistence/AppDbContext.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "provider_aware_query_and_provider_specific_features_3",
+                "label": "App Db Context configures pgvector extension and vector columns/indexes when Postgres provider is selected",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs and NexusReader.Data/Persistence/AppDbContext.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.885,
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs and NexusReader.Data/Persistence/AppDbContext.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "medium",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_provider_aware_query_and_provider_specific_features",
+            "name": "Provider-aware query and provider-specific features",
+            "rank": 7,
+            "score": 0.699,
+            "scoreBreakdown": {
+              "businessValue": 0.885,
+              "evidenceStrength": 0.88,
+              "architectureCoverage": 0.75,
+              "executionTruth": 0.43,
+              "userComprehension": 0.42
+            },
+            "reason": "Ranked because Provider-aware query and provider-specific features combines business value 0.89, evidence strength 0.88, architecture coverage 0.75, execution truth 0.43, and comprehension 0.42 for a total score of 0.70.",
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs and NexusReader.Data/Persistence/AppDbContext.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "medium"
+          },
+          "selection": {
+            "flowId": "flow_provider_aware_query_and_provider_specific_features",
+            "name": "Provider-aware query and provider-specific features",
+            "state": "rejected",
+            "rank": 7,
+            "score": 0.699,
+            "reason": "Rejected because Provider-aware query and provider-specific features ranked #7, outside the top 5 publication slots.",
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs and NexusReader.Data/Persistence/AppDbContext.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "medium",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_app_composition_and_maui_bootstrap",
+            "name": "App composition and MAUI bootstrap",
+            "description": "App composition and MAUI bootstrap starts at NexusReader.Maui/MauiProgram.cs and follows 4 grounded steps: Enter Create Maui App -> Returns result -> Call Add Application -> Call Dependency Injection.",
+            "capabilityId": "capability_app_composition_and_maui_bootstrap",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_entry",
+                "label": "Enter Create Maui App",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_createmauiapp_return_57_0",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_nexusreader_application_addapplication_51",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_nexusreader_application_dependencyinjection_assembly_54",
+                "label": "Call Dependency Injection",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "low",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_app_composition_and_maui_bootstrap",
+            "name": "App composition and MAUI bootstrap",
+            "rank": 8,
+            "score": 0.683,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.76,
+              "architectureCoverage": 0.667,
+              "executionTruth": 0.37,
+              "userComprehension": 0.66
+            },
+            "reason": "Ranked because App composition and MAUI bootstrap combines business value 0.95, evidence strength 0.76, architecture coverage 0.67, execution truth 0.37, and comprehension 0.66 for a total score of 0.68.",
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "low"
+          },
+          "selection": {
+            "flowId": "flow_app_composition_and_maui_bootstrap",
+            "name": "App composition and MAUI bootstrap",
+            "state": "rejected",
+            "rank": 8,
+            "score": 0.683,
+            "reason": "Rejected because App composition and MAUI bootstrap has validation issues: weak-evidence, flat-flow.",
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "low",
+            "validationIssues": [
+              {
+                "code": "weak-evidence",
+                "severity": "warn",
+                "flowId": "flow_app_composition_and_maui_bootstrap",
+                "message": "Flow App composition and MAUI bootstrap has weak evidence coverage for publication."
+              },
+              {
+                "code": "flat-flow",
+                "severity": "warn",
+                "flowId": "flow_app_composition_and_maui_bootstrap",
+                "message": "Flow App composition and MAUI bootstrap is too flat and does not preserve enough execution truth for publication."
+              }
+            ]
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_wasm_di_bootstrap_stub_registration",
+            "name": "WASM DI bootstrap & stub registration",
+            "description": "WASM DI bootstrap & stub registration starts at NexusReader.Web.Client/Program.cs and follows 8 grounded steps: Enter Program (top level startup) -> Call Throwing Db Context Factory. -> Call Throwing Embedding Generator. -> Call Throwing Book Storage Service. -> ....",
+            "capabilityId": "capability_wasm_di_bootstrap_stub_registration",
+            "domainIds": [
+              "addeddate",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "author",
+              "chapter",
+              "chapter_index",
+              "chapter_retrieval",
+              "client_wasm",
+              "configuration_json_env_file_support",
+              "contenthash",
+              "createdat",
+              "database_providers_sqlite_postgresql",
+              "description_column",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebookid",
+              "ebooks",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "isunlimitedtokens",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreaddate",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "persistence",
+              "progress",
+              "quiz_results",
+              "quiz_state",
+              "quizresult",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "role",
+              "secure_client_storage",
+              "semantic_knowledge_cache",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "shared_ui",
+              "stripeproductid",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenant",
+              "theme_focus_mode",
+              "token_refresh",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "vector_embeddings_storage_pgvector",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_entry",
+                "label": "Enter Program (top level startup)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingdbcontextfactory_ctor_49",
+                "label": "Call Throwing Db Context Factory.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingembeddinggenerator_ctor_50",
+                "label": "Call Throwing Embedding Generator.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingbookstorageservice_ctor_51",
+                "label": "Call Throwing Book Storage Service.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingebookrepository_ctor_52",
+                "label": "Call Throwing Ebook Repository.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingsyncbroadcaster_ctor_53",
+                "label": "Call Throwing Sync Broadcaster.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_nexusreader_application_addapplication_55",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_result",
+                "label": "Complete Program (top level startup)",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_wasm_di_bootstrap_stub_registration",
+            "name": "WASM DI bootstrap & stub registration",
+            "rank": 9,
+            "score": 0.566,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.775,
+              "architectureCoverage": 0.667,
+              "executionTruth": 0.11,
+              "userComprehension": 0.1
+            },
+            "reason": "Ranked because WASM DI bootstrap & stub registration combines business value 0.95, evidence strength 0.78, architecture coverage 0.67, execution truth 0.11, and comprehension 0.10 for a total score of 0.57.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_wasm_di_bootstrap_stub_registration",
+            "name": "WASM DI bootstrap & stub registration",
+            "state": "rejected",
+            "rank": 9,
+            "score": 0.566,
+            "reason": "Rejected because WASM DI bootstrap & stub registration has validation issues: flat-flow.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": [
+              {
+                "code": "flat-flow",
+                "severity": "warn",
+                "flowId": "flow_wasm_di_bootstrap_stub_registration",
+                "message": "Flow WASM DI bootstrap & stub registration is too flat and does not preserve enough execution truth for publication."
+              }
+            ]
+          }
+        }
+      ]
+    },
+    {
+      "documentFilename": "infrastructure-services.md",
+      "documentTitle": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub",
+      "relativeOutputPath": "domains/infrastructure-services.md",
+      "collectionKind": "domains",
+      "publicationTier": "secondary",
+      "candidates": [
+        {
+          "flow": {
+            "id": "flow_wasm_knowledge_client_flow",
+            "name": "WASM Knowledge Client Flow",
+            "description": "WASM Knowledge Client Flow starts at NexusReader.Web.Client/Services/WasmKnowledgeService.cs and follows 7 grounded steps: Enter Get Relevant Context Async -> Evaluates branch condition -> Reads repository or persistence state -> Return Ok or Fail depending on deserialization -> ....",
+            "capabilityId": "capability_wasm_knowledge_client_flow",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_identity",
+              "author",
+              "authorization_policy",
+              "background_processing",
+              "billing",
+              "book_ebook_file",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "content_normalization",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_entry",
+                "label": "Enter Get Relevant Context Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_getrelevantcontextasync_branch_42_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_getrelevantcontextasync_repository_read_45_1",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_return_45",
+                "label": "Return Ok or Fail depending on deserialization",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_getrelevantcontextasync_return_45_2",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_external_call",
+                "label": "POST /api/knowledge/relevant with { query, tenantId }",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_persistence_read",
+                "label": "return context != null ? Result.Ok(context) : Result.Fail(\"Failed to deserialize relevant context.\");",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_wasm_knowledge_client_flow",
+            "name": "WASM Knowledge Client Flow",
+            "rank": 1,
+            "score": 0.877,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.829,
+              "architectureCoverage": 0.917,
+              "executionTruth": 1,
+              "userComprehension": 0.42
+            },
+            "reason": "Ranked because WASM Knowledge Client Flow combines business value 0.95, evidence strength 0.83, architecture coverage 0.92, execution truth 1.00, and comprehension 0.42 for a total score of 0.88.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_wasm_knowledge_client_flow",
+            "name": "WASM Knowledge Client Flow",
+            "state": "selected",
+            "rank": 1,
+            "score": 0.877,
+            "reason": "Selected because WASM Knowledge Client Flow ranked #1 with score 0.88 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ensure_database_initialized",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_identity",
+              "author",
+              "authorization_policy",
+              "background_processing",
+              "billing",
+              "book_ebook_file",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "content_normalization",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "rank": 2,
+            "score": 0.873,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.85,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Ensure Database Initialized combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "state": "selected",
+            "rank": 2,
+            "score": 0.873,
+            "reason": "Selected because Ensure Database Initialized ranked #2 with score 0.87 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_epub_chapter_read_flow",
+            "name": "EPUB Chapter Read Flow",
+            "description": "EPUB Chapter Read Flow starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_epub_chapter_read_flow",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_identity",
+              "author",
+              "authorization_policy",
+              "background_processing",
+              "billing",
+              "book_ebook_file",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "content_normalization",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_epub_chapter_read_flow",
+            "name": "EPUB Chapter Read Flow",
+            "rank": 3,
+            "score": 0.873,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.85,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because EPUB Chapter Read Flow combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_epub_chapter_read_flow",
+            "name": "EPUB Chapter Read Flow",
+            "state": "selected",
+            "rank": 3,
+            "score": 0.873,
+            "reason": "Selected because EPUB Chapter Read Flow ranked #3 with score 0.87 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_handle_subscription_success",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_identity",
+              "author",
+              "authorization_policy",
+              "background_processing",
+              "billing",
+              "book_ebook_file",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "content_normalization",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "rank": 4,
+            "score": 0.873,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.85,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Handle Subscription Success combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "state": "selected",
+            "rank": 4,
+            "score": 0.873,
+            "reason": "Selected because Handle Subscription Success ranked #4 with score 0.87 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_knowledge_retrieval_caching_flow",
+            "name": "Knowledge Retrieval & Caching Flow",
+            "description": "Knowledge Retrieval & Caching Flow starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_knowledge_retrieval_caching_flow",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_identity",
+              "author",
+              "authorization_policy",
+              "background_processing",
+              "billing",
+              "book_ebook_file",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "content_normalization",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_knowledge_retrieval_caching_flow",
+            "name": "Knowledge Retrieval & Caching Flow",
+            "rank": 5,
+            "score": 0.873,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.85,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Knowledge Retrieval & Caching Flow combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_knowledge_retrieval_caching_flow",
+            "name": "Knowledge Retrieval & Caching Flow",
+            "state": "selected",
+            "rank": 5,
+            "score": 0.873,
+            "reason": "Selected because Knowledge Retrieval & Caching Flow ranked #5 with score 0.87 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_program_top_level",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_identity",
+              "author",
+              "authorization_policy",
+              "background_processing",
+              "billing",
+              "book_ebook_file",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "content_normalization",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_program_top_level",
+            "name": "Program (top level)",
+            "rank": 6,
+            "score": 0.873,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.85,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Program (top level) combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_program_top_level",
+            "name": "Program (top level)",
+            "state": "rejected",
+            "rank": 6,
+            "score": 0.873,
+            "reason": "Rejected because Program (top level) ranked #6, outside the top 5 publication slots.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_stripe_billing_webhook_flow",
+            "name": "Stripe Billing Webhook Flow",
+            "description": "Stripe Billing Webhook Flow starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_stripe_billing_webhook_flow",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_identity",
+              "author",
+              "authorization_policy",
+              "background_processing",
+              "billing",
+              "book_ebook_file",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "content_normalization",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_stripe_billing_webhook_flow",
+            "name": "Stripe Billing Webhook Flow",
+            "rank": 7,
+            "score": 0.873,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.85,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Stripe Billing Webhook Flow combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_stripe_billing_webhook_flow",
+            "name": "Stripe Billing Webhook Flow",
+            "state": "rejected",
+            "rank": 7,
+            "score": 0.873,
+            "reason": "Rejected because Stripe Billing Webhook Flow ranked #7, outside the top 5 publication slots.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_token_authorization_flow",
+            "name": "Token Authorization Flow",
+            "description": "Token Authorization Flow starts at NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs and follows 3 grounded steps: Protected API endpoint is decorated with policy referencing Token Limit Requirement -> Authorization subsystem invokes Token Limit Handler -> Handler uses App Db Context to load Nexus User subscription/tokens and decides success/failure.",
+            "capabilityId": "capability_token_authorization_flow",
+            "domainIds": [
+              "ai_configuration",
+              "ai_token_limit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_identity",
+              "author",
+              "authorization_policy",
+              "background_processing",
+              "billing",
+              "book_ebook_file",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "content_normalization",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "cover_cover_image",
+              "deterministic_hashing",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "ebook_processing",
+              "embedding",
+              "embeddings",
+              "epub",
+              "graph_relationships",
+              "groundedness",
+              "groundedresponse",
+              "grounding_fact_checking",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_graph_expansion",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "knowledgeunit",
+              "knowledgeunitlink",
+              "llm_model_selection",
+              "localepubmetadata",
+              "nexususer",
+              "nexususer_identity",
+              "payments",
+              "productid",
+              "quiz_state",
+              "rate_size_limits_and_retry_policy",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "secure_client_storage",
+              "semantic_embeddings_and_vector_search",
+              "semanticsearch",
+              "stripe",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "vector_search_embeddings",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "token_authorization_flow_1",
+                "label": "Protected API endpoint is decorated with policy referencing Token Limit Requirement",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              },
+              {
+                "id": "token_authorization_flow_2",
+                "label": "Authorization subsystem invokes Token Limit Handler",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              },
+              {
+                "id": "token_authorization_flow_3",
+                "label": "Handler uses App Db Context to load Nexus User subscription/tokens and decides success/failure",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.855,
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "medium",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_token_authorization_flow",
+            "name": "Token Authorization Flow",
+            "rank": 8,
+            "score": 0.591,
+            "scoreBreakdown": {
+              "businessValue": 0.855,
+              "evidenceStrength": 0.88,
+              "architectureCoverage": 0.75,
+              "executionTruth": 0.06,
+              "userComprehension": 0.34
+            },
+            "reason": "Ranked because Token Authorization Flow combines business value 0.85, evidence strength 0.88, architecture coverage 0.75, execution truth 0.06, and comprehension 0.34 for a total score of 0.59.",
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "medium"
+          },
+          "selection": {
+            "flowId": "flow_token_authorization_flow",
+            "name": "Token Authorization Flow",
+            "state": "rejected",
+            "rank": 8,
+            "score": 0.591,
+            "reason": "Rejected because Token Authorization Flow has validation issues: flat-flow.",
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+            ],
+            "confidence": "medium",
+            "validationIssues": [
+              {
+                "code": "flat-flow",
+                "severity": "warn",
+                "flowId": "flow_token_authorization_flow",
+                "message": "Flow Token Authorization Flow is too flat and does not preserve enough execution truth for publication."
+              }
+            ]
+          }
+        }
+      ]
+    },
+    {
+      "documentFilename": "maui-mobile.md",
+      "documentTitle": "MAUI Mobile Host: App wiring and platform services",
+      "relativeOutputPath": "domains/maui-mobile.md",
+      "collectionKind": "domains",
+      "publicationTier": "secondary",
+      "candidates": [
+        {
+          "flow": {
+            "id": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ensure_database_initialized",
+            "domainIds": [
+              "android",
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "device",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "haptics",
+              "identity_authenticationstateprovider",
+              "ios",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "maccatalyst",
+              "maui",
+              "maui_razor_components",
+              "mobile",
+              "mobile_client_ui",
+              "nexususer_identity",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_persistence",
+              "preferences_based_storage",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "result_wrapping_for_error_handling",
+              "secure_client_storage",
+              "secure_storage",
+              "securestorage_encrypted_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "ui_shared",
+              "vibration",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "rank": 1,
+            "score": 0.873,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.85,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Ensure Database Initialized combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "state": "selected",
+            "rank": 1,
+            "score": 0.873,
+            "reason": "Selected because Ensure Database Initialized ranked #1 with score 0.87 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_handle_subscription_success",
+            "domainIds": [
+              "android",
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "device",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "haptics",
+              "identity_authenticationstateprovider",
+              "ios",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "maccatalyst",
+              "maui",
+              "maui_razor_components",
+              "mobile",
+              "mobile_client_ui",
+              "nexususer_identity",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_persistence",
+              "preferences_based_storage",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "result_wrapping_for_error_handling",
+              "secure_client_storage",
+              "secure_storage",
+              "securestorage_encrypted_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "ui_shared",
+              "vibration",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "rank": 2,
+            "score": 0.873,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.85,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Handle Subscription Success combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "state": "selected",
+            "rank": 2,
+            "score": 0.873,
+            "reason": "Selected because Handle Subscription Success ranked #2 with score 0.87 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_program_top_level",
+            "domainIds": [
+              "android",
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "device",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "haptics",
+              "identity_authenticationstateprovider",
+              "ios",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "maccatalyst",
+              "maui",
+              "maui_razor_components",
+              "mobile",
+              "mobile_client_ui",
+              "nexususer_identity",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_persistence",
+              "preferences_based_storage",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "result_wrapping_for_error_handling",
+              "secure_client_storage",
+              "secure_storage",
+              "securestorage_encrypted_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "ui_shared",
+              "vibration",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_program_top_level",
+            "name": "Program (top level)",
+            "rank": 3,
+            "score": 0.873,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.85,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Program (top level) combines business value 0.95, evidence strength 0.85, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.87.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_program_top_level",
+            "name": "Program (top level)",
+            "state": "selected",
+            "rank": 3,
+            "score": 0.873,
+            "reason": "Selected because Program (top level) ranked #3 with score 0.87 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_maui_app_startup_flow",
+            "name": "MAUI App Startup Flow",
+            "description": "MAUI App Startup Flow starts at NexusReader.Maui/MauiProgram.cs and follows 4 grounded steps: Enter Create Maui App -> Returns result -> Call Add Application -> Call Dependency Injection.",
+            "capabilityId": "capability_maui_app_startup_flow",
+            "domainIds": [
+              "android",
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "device",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "haptics",
+              "identity_authenticationstateprovider",
+              "ios",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "maccatalyst",
+              "maui",
+              "maui_razor_components",
+              "mobile",
+              "mobile_client_ui",
+              "nexususer_identity",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_persistence",
+              "preferences_based_storage",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "result_wrapping_for_error_handling",
+              "secure_client_storage",
+              "secure_storage",
+              "securestorage_encrypted_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "ui_shared",
+              "vibration",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_entry",
+                "label": "Enter Create Maui App",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_createmauiapp_return_57_0",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_nexusreader_application_addapplication_51",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_nexusreader_application_dependencyinjection_assembly_54",
+                "label": "Call Dependency Injection",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "low",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_maui_app_startup_flow",
+            "name": "MAUI App Startup Flow",
+            "rank": 4,
+            "score": 0.683,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.76,
+              "architectureCoverage": 0.667,
+              "executionTruth": 0.37,
+              "userComprehension": 0.66
+            },
+            "reason": "Ranked because MAUI App Startup Flow combines business value 0.95, evidence strength 0.76, architecture coverage 0.67, execution truth 0.37, and comprehension 0.66 for a total score of 0.68.",
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "low"
+          },
+          "selection": {
+            "flowId": "flow_maui_app_startup_flow",
+            "name": "MAUI App Startup Flow",
+            "state": "rejected",
+            "rank": 4,
+            "score": 0.683,
+            "reason": "Rejected because MAUI App Startup Flow has validation issues: weak-evidence, flat-flow.",
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "low",
+            "validationIssues": [
+              {
+                "code": "weak-evidence",
+                "severity": "warn",
+                "flowId": "flow_maui_app_startup_flow",
+                "message": "Flow MAUI App Startup Flow has weak evidence coverage for publication."
+              },
+              {
+                "code": "flat-flow",
+                "severity": "warn",
+                "flowId": "flow_maui_app_startup_flow",
+                "message": "Flow MAUI App Startup Flow is too flat and does not preserve enough execution truth for publication."
+              }
+            ]
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_native_storage_access_flow",
+            "name": "Native Storage Access Flow",
+            "description": "Native Storage Access Flow starts at INativeStorageService (injected into consumers) and follows 3 grounded steps: Application code requests INative Storage Service via DI -> Maui Storage Service (Infrastructure.Mobile or Nexus Reader -> Results/exceptions are mapped to Fluent Results.",
+            "capabilityId": "capability_native_storage_access_flow",
+            "domainIds": [
+              "android",
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "device",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "haptics",
+              "identity_authenticationstateprovider",
+              "ios",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "maccatalyst",
+              "maui",
+              "maui_razor_components",
+              "mobile",
+              "mobile_client_ui",
+              "nexususer_identity",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_persistence",
+              "preferences_based_storage",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "result_wrapping_for_error_handling",
+              "secure_client_storage",
+              "secure_storage",
+              "securestorage_encrypted_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "ui_shared",
+              "vibration",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "INativeStorageService (injected into consumers)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "native_storage_access_flow_1",
+                "label": "Application code requests INative Storage Service via DI",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "INativeStorageService (injected into consumers)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              },
+              {
+                "id": "native_storage_access_flow_2",
+                "label": "Maui Storage Service (Infrastructure.Mobile or Nexus Reader",
+                "kind": "integration",
+                "evidencePaths": [
+                  "INativeStorageService (injected into consumers)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              },
+              {
+                "id": "native_storage_access_flow_3",
+                "label": "Results/exceptions are mapped to Fluent Results",
+                "kind": "result",
+                "evidencePaths": [
+                  "INativeStorageService (injected into consumers)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.875,
+            "evidencePaths": [
+              "INativeStorageService (injected into consumers)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "medium",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_native_storage_access_flow",
+            "name": "Native Storage Access Flow",
+            "rank": 5,
+            "score": 0.671,
+            "scoreBreakdown": {
+              "businessValue": 0.875,
+              "evidenceStrength": 0.88,
+              "architectureCoverage": 0.75,
+              "executionTruth": 0.36,
+              "userComprehension": 0.34
+            },
+            "reason": "Ranked because Native Storage Access Flow combines business value 0.88, evidence strength 0.88, architecture coverage 0.75, execution truth 0.36, and comprehension 0.34 for a total score of 0.67.",
+            "evidencePaths": [
+              "INativeStorageService (injected into consumers)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "medium"
+          },
+          "selection": {
+            "flowId": "flow_native_storage_access_flow",
+            "name": "Native Storage Access Flow",
+            "state": "selected",
+            "rank": 5,
+            "score": 0.671,
+            "reason": "Selected because Native Storage Access Flow ranked #5 with score 0.67 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "INativeStorageService (injected into consumers)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "medium",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_platform_vibration_device_context_flow",
+            "name": "Platform Vibration / Device Context Flow",
+            "description": "Platform Vibration / Device Context Flow starts at IPlatformService (injected into UI/services) and follows 3 grounded steps: UI or service calls IPlatform Service -> Maui Platform Service translates calls to MAUI Device Info/Device Display/Haptic Feedback -> Responses mapped to application enums and returned as Fluent Results.",
+            "capabilityId": "capability_platform_vibration_device_context_flow",
+            "domainIds": [
+              "android",
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "device",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "haptics",
+              "identity_authenticationstateprovider",
+              "ios",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "maccatalyst",
+              "maui",
+              "maui_razor_components",
+              "mobile",
+              "mobile_client_ui",
+              "nexususer_identity",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_persistence",
+              "preferences_based_storage",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "result_wrapping_for_error_handling",
+              "secure_client_storage",
+              "secure_storage",
+              "securestorage_encrypted_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "ui_shared",
+              "vibration",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "IPlatformService (injected into UI/services)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "platform_vibration_device_context_flow_1",
+                "label": "UI or service calls IPlatform Service",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "IPlatformService (injected into UI/services)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              },
+              {
+                "id": "platform_vibration_device_context_flow_2",
+                "label": "Maui Platform Service translates calls to MAUI Device Info/Device Display/Haptic Feedback",
+                "kind": "integration",
+                "evidencePaths": [
+                  "IPlatformService (injected into UI/services)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              },
+              {
+                "id": "platform_vibration_device_context_flow_3",
+                "label": "Responses mapped to application enums and returned as Fluent Results",
+                "kind": "result",
+                "evidencePaths": [
+                  "IPlatformService (injected into UI/services)",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.875,
+            "evidencePaths": [
+              "IPlatformService (injected into UI/services)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "medium",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_platform_vibration_device_context_flow",
+            "name": "Platform Vibration / Device Context Flow",
+            "rank": 6,
+            "score": 0.671,
+            "scoreBreakdown": {
+              "businessValue": 0.875,
+              "evidenceStrength": 0.88,
+              "architectureCoverage": 0.75,
+              "executionTruth": 0.36,
+              "userComprehension": 0.34
+            },
+            "reason": "Ranked because Platform Vibration / Device Context Flow combines business value 0.88, evidence strength 0.88, architecture coverage 0.75, execution truth 0.36, and comprehension 0.34 for a total score of 0.67.",
+            "evidencePaths": [
+              "IPlatformService (injected into UI/services)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "medium"
+          },
+          "selection": {
+            "flowId": "flow_platform_vibration_device_context_flow",
+            "name": "Platform Vibration / Device Context Flow",
+            "state": "rejected",
+            "rank": 6,
+            "score": 0.671,
+            "reason": "Rejected because Platform Vibration / Device Context Flow ranked #6, outside the top 5 publication slots.",
+            "evidencePaths": [
+              "IPlatformService (injected into UI/services)",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "medium",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_mobile_api_http_flow",
+            "name": "Mobile -> API HTTP Flow",
+            "description": "Mobile -> API HTTP Flow starts at HttpClient configured in NexusReader.Maui/MauiProgram.cs and follows 3 grounded steps: Maui Program configures Http Client with Base Address http://10.0.2 -> Application or UI issues HTTP requests via injected Http Client -> Requests reach development API host (emulator host routing).",
+            "capabilityId": "capability_mobile_api_http_flow",
+            "domainIds": [
+              "android",
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "device",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "haptics",
+              "identity_authenticationstateprovider",
+              "ios",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "maccatalyst",
+              "maui",
+              "maui_razor_components",
+              "mobile",
+              "mobile_client_ui",
+              "nexususer_identity",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_persistence",
+              "preferences_based_storage",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "result_wrapping_for_error_handling",
+              "secure_client_storage",
+              "secure_storage",
+              "securestorage_encrypted_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "ui_shared",
+              "vibration",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "HttpClient configured in NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "mobile_api_http_flow_1",
+                "label": "Maui Program configures Http Client with Base Address http://10.0.2",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "HttpClient configured in NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              },
+              {
+                "id": "mobile_api_http_flow_2",
+                "label": "Application or UI issues HTTP requests via injected Http Client",
+                "kind": "processing",
+                "evidencePaths": [
+                  "HttpClient configured in NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              },
+              {
+                "id": "mobile_api_http_flow_3",
+                "label": "Requests reach development API host (emulator host routing)",
+                "kind": "result",
+                "evidencePaths": [
+                  "HttpClient configured in NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.855,
+            "evidencePaths": [
+              "HttpClient configured in NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "medium",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_mobile_api_http_flow",
+            "name": "Mobile -> API HTTP Flow",
+            "rank": 7,
+            "score": 0.591,
+            "scoreBreakdown": {
+              "businessValue": 0.855,
+              "evidenceStrength": 0.88,
+              "architectureCoverage": 0.75,
+              "executionTruth": 0.06,
+              "userComprehension": 0.34
+            },
+            "reason": "Ranked because Mobile -> API HTTP Flow combines business value 0.85, evidence strength 0.88, architecture coverage 0.75, execution truth 0.06, and comprehension 0.34 for a total score of 0.59.",
+            "evidencePaths": [
+              "HttpClient configured in NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "medium"
+          },
+          "selection": {
+            "flowId": "flow_mobile_api_http_flow",
+            "name": "Mobile -> API HTTP Flow",
+            "state": "rejected",
+            "rank": 7,
+            "score": 0.591,
+            "reason": "Rejected because Mobile -> API HTTP Flow has validation issues: flat-flow.",
+            "evidencePaths": [
+              "HttpClient configured in NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+            ],
+            "confidence": "medium",
+            "validationIssues": [
+              {
+                "code": "flat-flow",
+                "severity": "warn",
+                "flowId": "flow_mobile_api_http_flow",
+                "message": "Flow Mobile -> API HTTP Flow is too flat and does not preserve enough execution truth for publication."
+              }
+            ]
+          }
+        }
+      ]
+    },
+    {
+      "documentFilename": "overview.md",
+      "documentTitle": "Project Overview and Architecture",
+      "relativeOutputPath": "collections/overview.md",
+      "collectionKind": "collections",
+      "publicationTier": "primary",
+      "candidates": [
+        {
+          "flow": {
+            "id": "flow_knowledge_request_server_flow",
+            "name": "Knowledge request (server) flow",
+            "description": "Knowledge request (server) flow starts at NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs and follows 5 grounded steps: API receives knowledge request (Program -> DI resolved Knowledge Service invoked; checks cache/dedup structures -> Queries vector DB/graph and calls LLM/embedding clients with resilience and retry -> Response repaired/validated, content hashed and upserted to Db Context (Semantic Knowledge Cache/Knowledge Unit) -> ....",
+            "capabilityId": "capability_knowledge_request_server_flow",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "knowledge_request_server_flow_1",
+                "label": "API receives knowledge request (Program",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "knowledge_request_server_flow_2",
+                "label": "DI resolved Knowledge Service invoked; checks cache/dedup structures",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "knowledge_request_server_flow_3",
+                "label": "Queries vector DB/graph and calls LLM/embedding clients with resilience and retry",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "knowledge_request_server_flow_4",
+                "label": "Response repaired/validated, content hashed and upserted to Db Context (Semantic Knowledge Cache/Knowledge Unit)",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "knowledge_request_server_flow_5",
+                "label": "Knowledge DTO returned to caller",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_knowledge_request_server_flow",
+            "name": "Knowledge request (server) flow",
+            "rank": 1,
+            "score": 0.921,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.88,
+              "architectureCoverage": 0.833,
+              "executionTruth": 1,
+              "userComprehension": 0.9
+            },
+            "reason": "Ranked because Knowledge request (server) flow combines business value 0.95, evidence strength 0.88, architecture coverage 0.83, execution truth 1.00, and comprehension 0.90 for a total score of 0.92.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_knowledge_request_server_flow",
+            "name": "Knowledge request (server) flow",
+            "state": "selected",
+            "rank": 1,
+            "score": 0.921,
+            "reason": "Selected because Knowledge request (server) flow ranked #1 with score 0.92 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ensure_database_initialized",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "rank": 2,
+            "score": 0.861,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.8,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Ensure Database Initialized combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "state": "selected",
+            "rank": 2,
+            "score": 0.861,
+            "reason": "Selected because Ensure Database Initialized ranked #2 with score 0.86 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_program_top_level",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
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+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
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+              "vector_search_pgvector",
+              "vector_search_embeddings",
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+              "NexusReader.Web.Client/Program.cs",
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+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
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+                "label": "Call Add Infrastructure",
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+                  "NexusReader.Web/Program.cs",
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+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
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+            "confidence": "high",
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+            "confidence": "high",
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+            "domainIds": [
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+              "device",
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+              "device_sync_broadcast",
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+              "devicetype",
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+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
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+              "keyconcept",
+              "knowledge",
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+              "knowledge_extraction",
+              "knowledge_graph",
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+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
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+              "knowledgeunitlink",
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+              "plan",
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+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
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+              "reader",
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+              "reading_lastreadbook",
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+              "search",
+              "search_result",
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+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
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+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
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+              "settings",
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+              "subscriptionplan",
+              "summarization_quiz_generation",
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+              "tenant",
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+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
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+              "user_aspnetusers",
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+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
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+              "windows"
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+              "NexusReader.Web/Program.cs"
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+              },
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+                "id": "auth_profile_sync_and_token_lifecycle_2",
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+                  "NexusReader.Web/Program.cs"
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+              },
+              {
+                "id": "auth_profile_sync_and_token_lifecycle_3",
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+                  "NexusReader.Web/Program.cs"
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+              },
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+                "id": "auth_profile_sync_and_token_lifecycle_4",
+                "label": "Logout clears storage and notifies authentication state provider",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Layout/MainHubLayout.razor -> NexusReader.Application/Queries/User/GetUserProfileQuery.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Layout/MainHubLayout.razor -> NexusReader.Application/Queries/User/GetUserProfileQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_auth_profile_sync_and_token_lifecycle",
+            "name": "Auth / profile sync and token lifecycle",
+            "rank": 4,
+            "score": 0.858,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 1,
+              "architectureCoverage": 0.833,
+              "executionTruth": 0.74,
+              "userComprehension": 0.66
+            },
+            "reason": "Ranked because Auth / profile sync and token lifecycle combines business value 0.95, evidence strength 1.00, architecture coverage 0.83, execution truth 0.74, and comprehension 0.66 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Layout/MainHubLayout.razor -> NexusReader.Application/Queries/User/GetUserProfileQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_auth_profile_sync_and_token_lifecycle",
+            "name": "Auth / profile sync and token lifecycle",
+            "state": "selected",
+            "rank": 4,
+            "score": 0.858,
+            "reason": "Selected because Auth / profile sync and token lifecycle ranked #4 with score 0.86 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Layout/MainHubLayout.razor -> NexusReader.Application/Queries/User/GetUserProfileQuery.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_reading_progress_sync_signalr_mediatr_broadcaster",
+            "name": "Reading progress sync (SignalR -> MediatR -> Broadcaster)",
+            "description": "Reading progress sync (SignalR -> MediatR -> Broadcaster) starts at NexusReader.Infrastructure/RealTime/SyncHub.cs and follows 9 grounded steps: Enter Update Progress -> Reads repository or persistence state -> Evaluates branch condition -> Call Update Reading Progress Command (ctor) -> ....",
+            "capabilityId": "capability_reading_progress_sync_signalr_mediatr_broadcaster",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_entry",
+                "label": "Enter Update Progress",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_updateprogress_repository_read_21_0",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_updateprogress_branch_22_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_updatereadingprogresscommand_ctor_24",
+                "label": "Call Update Reading Progress Command (ctor)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_external_call",
+                "label": "Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_external_call",
+                "label": "_mediator.Send(...) (MediatR)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_persistence_read",
+                "label": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_persistence_read",
+                "label": "await _mediator.Send(new UpdateReadingProgressCommand(pageId, userId, ebookId, progress, chapterTitle, chapterIndex, Context.ConnectionId));",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_result",
+                "label": "Complete Update Progress",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_reading_progress_sync_signalr_mediatr_broadcaster",
+            "name": "Reading progress sync (SignalR -> MediatR -> Broadcaster)",
+            "rank": 5,
+            "score": 0.847,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.733,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Reading progress sync (SignalR -> MediatR -> Broadcaster) combines business value 0.95, evidence strength 0.73, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.85.",
+            "evidencePaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_reading_progress_sync_signalr_mediatr_broadcaster",
+            "name": "Reading progress sync (SignalR -> MediatR -> Broadcaster)",
+            "state": "selected",
+            "rank": 5,
+            "score": 0.847,
+            "reason": "Selected because Reading progress sync (SignalR -> MediatR -> Broadcaster) ranked #5 with score 0.85 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_ui_driven_knowledge_graph_quiz_flow_client_side_coordinator",
+            "name": "UI-driven knowledge graph / quiz flow (client-side coordinator)",
+            "description": "UI-driven knowledge graph / quiz flow (client-side coordinator) starts at NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs and follows 11 grounded steps: Enter Handle Node Selected -> Repeats work over a collection or condition -> Evaluates branch condition -> Reads repository or persistence state -> ....",
+            "capabilityId": "capability_ui_driven_knowledge_graph_quiz_flow_client_side_coordinator",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
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+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+              "unknown",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_entry",
+                "label": "Enter Handle Node Selected",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_handlenodeselected_loop_56_4",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_handlenodeselected_branch_49_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_handlenodeselected_repository_read_51_1",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_unknown_currentgraphdata_property_48",
+                "label": "Call Current Graph Data (property)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_unknown_requestscrolltoblock_71",
+                "label": "Call Request Scroll To Block",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_unknown_requesthighlightblock_72",
+                "label": "Call Request Highlight Block",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_persistence_read",
+                "label": "var selectedNode = graph.Nodes.FirstOrDefault(n => n.Id == nodeId);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_persistence_read",
+                "label": "var connectedLinks = graph.Links.Where(l => l.Source == nodeId || l.Target == nodeId).ToList();",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_persistence_read",
+                "label": "var otherNode = graph.Nodes.FirstOrDefault(n => n.Id == otherId);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_result",
+                "label": "Complete Handle Node Selected",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+                  "unknown"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+              "unknown",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_ui_driven_knowledge_graph_quiz_flow_client_side_coordinator",
+            "name": "UI-driven knowledge graph / quiz flow (client-side coordinator)",
+            "rank": 6,
+            "score": 0.819,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.673,
+              "architectureCoverage": 0.917,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because UI-driven knowledge graph / quiz flow (client-side coordinator) combines business value 0.95, evidence strength 0.67, architecture coverage 0.92, execution truth 1.00, and comprehension 0.18 for a total score of 0.82.",
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+              "unknown",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_ui_driven_knowledge_graph_quiz_flow_client_side_coordinator",
+            "name": "UI-driven knowledge graph / quiz flow (client-side coordinator)",
+            "state": "rejected",
+            "rank": 6,
+            "score": 0.819,
+            "reason": "Rejected because UI-driven knowledge graph / quiz flow (client-side coordinator) ranked #6, outside the top 5 publication slots.",
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+              "unknown",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_billing_webhook_and_subscription_reconciliation",
+            "name": "Billing webhook and subscription reconciliation",
+            "description": "Billing webhook and subscription reconciliation starts at NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/BillingService.cs and follows 4 grounded steps: External billing webhook arrives at server host endpoint -> Host invokes IBilling Service implementation in Infrastructure -> Billing Service reconciles subscription state and updates domain entities via Db Context -> Changes persisted and application level subscription policies (Pro User Requirement) reflect updated state.",
+            "capabilityId": "capability_billing_webhook_and_subscription_reconciliation",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/BillingService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "billing_webhook_and_subscription_reconciliation_1",
+                "label": "External billing webhook arrives at server host endpoint",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/BillingService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "billing_webhook_and_subscription_reconciliation_2",
+                "label": "Host invokes IBilling Service implementation in Infrastructure",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/BillingService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "billing_webhook_and_subscription_reconciliation_3",
+                "label": "Billing Service reconciles subscription state and updates domain entities via Db Context",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/BillingService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "billing_webhook_and_subscription_reconciliation_4",
+                "label": "Changes persisted and application level subscription policies (Pro User Requirement) reflect updated state",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/BillingService.cs",
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Web/Program.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/BillingService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_billing_webhook_and_subscription_reconciliation",
+            "name": "Billing webhook and subscription reconciliation",
+            "rank": 7,
+            "score": 0.8,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 1,
+              "architectureCoverage": 0.75,
+              "executionTruth": 0.6,
+              "userComprehension": 0.58
+            },
+            "reason": "Ranked because Billing webhook and subscription reconciliation combines business value 0.95, evidence strength 1.00, architecture coverage 0.75, execution truth 0.60, and comprehension 0.58 for a total score of 0.80.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/BillingService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_billing_webhook_and_subscription_reconciliation",
+            "name": "Billing webhook and subscription reconciliation",
+            "state": "rejected",
+            "rank": 7,
+            "score": 0.8,
+            "reason": "Rejected because Billing webhook and subscription reconciliation ranked #7, outside the top 5 publication slots.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/BillingService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_epub_ingestion_and_knowledge_unit_creation",
+            "name": "EPUB ingestion and knowledge-unit creation",
+            "description": "EPUB ingestion and knowledge-unit creation starts at NexusReader.Infrastructure/Services/EpubReaderService.cs and follows 12 grounded steps: Enter Get Epub Content Async -> Repeats work over a collection or condition -> Guards early exit or rejection path -> Reads repository or persistence state -> ....",
+            "capabilityId": "capability_epub_ingestion_and_knowledge_unit_creation",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+              "unknown",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_entry",
+                "label": "Enter Get Epub Content Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+                  "unknown",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_getepubcontentasync_loop_89_10",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_getepubcontentasync_guard_clause_92_11",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_getepubcontentasync_repository_read_41_0",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_getepubcontentasync_branch_47_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_getepubcontentasync_return_49_2",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_unknown_idbcontextfactory_appdbcontext_createdbcontextasync_39",
+                "label": "Call IDb Context Factory<App Db Context>",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_unknown_dbset_ebook_firstordefaultasync_41",
+                "label": "Call Db Set<Ebook>",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_self_resolvepath_54",
+                "label": "Call Resolve Path",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_unknown_file_exists_55",
+                "label": "Call File",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_unknown_versone_epub_epubreader_openbookasync_62",
+                "label": "Call Vers One.Epub.Epub Reader",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_services_epubreaderservice_cs_getepubcontentasync_unknown_epubbookref_getreadingorder_63",
+                "label": "Call Epub Book Ref",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+                  "unknown"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+              "unknown",
+              "self",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_epub_ingestion_and_knowledge_unit_creation",
+            "name": "EPUB ingestion and knowledge-unit creation",
+            "rank": 8,
+            "score": 0.795,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.7,
+              "architectureCoverage": 0.917,
+              "executionTruth": 0.88,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because EPUB ingestion and knowledge-unit creation combines business value 0.95, evidence strength 0.70, architecture coverage 0.92, execution truth 0.88, and comprehension 0.18 for a total score of 0.80.",
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+              "unknown",
+              "self",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_epub_ingestion_and_knowledge_unit_creation",
+            "name": "EPUB ingestion and knowledge-unit creation",
+            "state": "rejected",
+            "rank": 8,
+            "score": 0.795,
+            "reason": "Rejected because EPUB ingestion and knowledge-unit creation ranked #8, outside the top 5 publication slots.",
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+              "unknown",
+              "self",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_add_infrastructure",
+            "name": "Add Infrastructure",
+            "description": "Add Infrastructure starts at NexusReader.Infrastructure/DependencyInjection.cs and follows 12 grounded steps: Enter Add Infrastructure -> Falls back to alternate path -> Evaluates branch condition -> Returns IServiceCollection -> ....",
+            "capabilityId": "capability_add_infrastructure",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Infrastructure/Persistence/AppDbContext.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_entry",
+                "label": "Enter Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/Persistence/AppDbContext.cs",
+                  "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_addinfrastructure_fallback_44_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_addinfrastructure_branch_34_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_return_134",
+                "label": "Returns IServiceCollection",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_addinfrastructure_return_134_4",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_nexusreader_infrastructure_persistence_appdbcontext_cs_appdbcontext_dbcontext_36",
+                "label": "Call App Db Context (Db Context)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/Persistence/AppDbContext.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_nexusreader_infrastructure_services_knowledgeservice_cs_knowledgeservice_implementation_112",
+                "label": "Call Knowledge Service (implementation)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/Services/KnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_nexusreader_infrastructure_services_epubreaderservice_cs_epubreaderservice_implementation_113",
+                "label": "Call Epub Reader Service (implementation)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/Services/EpubReaderService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_nexusreader_infrastructure_services_epubmetadataextractor_cs_epubmetadataextractor_implementation_114",
+                "label": "Call Epub Metadata Extractor (implementation)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_nexusreader_infrastructure_services_bookstorageservice_cs_bookstorageservice_implementation_118",
+                "label": "Call Book Storage Service (implementation)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/Services/BookStorageService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_nexusreader_infrastructure_persistence_ebookrepository_cs_ebookrepository_implementation_121",
+                "label": "Call Ebook Repository (implementation)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Infrastructure.Persistence/EbookRepository.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_signalrsyncbroadcaster_implementation_124",
+                "label": "Call Signal RSync Broadcaster (implementation)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Infrastructure/Persistence/AppDbContext.cs",
+              "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_add_infrastructure",
+            "name": "Add Infrastructure",
+            "rank": 9,
+            "score": 0.779,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.7,
+              "architectureCoverage": 0.833,
+              "executionTruth": 0.88,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Add Infrastructure combines business value 0.95, evidence strength 0.70, architecture coverage 0.83, execution truth 0.88, and comprehension 0.18 for a total score of 0.78.",
+            "evidencePaths": [
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Infrastructure/Persistence/AppDbContext.cs",
+              "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_add_infrastructure",
+            "name": "Add Infrastructure",
+            "state": "rejected",
+            "rank": 9,
+            "score": 0.779,
+            "reason": "Rejected because Add Infrastructure ranked #9, outside the top 5 publication slots.",
+            "evidencePaths": [
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Infrastructure/Persistence/AppDbContext.cs",
+              "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_maui_app_startup_and_composition",
+            "name": "MAUI app startup and composition",
+            "description": "MAUI app startup and composition starts at NexusReader.Maui/MauiProgram.cs and follows 4 grounded steps: Enter Create Maui App -> Returns result -> Call Add Application -> Call Dependency Injection.",
+            "capabilityId": "capability_maui_app_startup_and_composition",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_entry",
+                "label": "Enter Create Maui App",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_createmauiapp_return_57_0",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_nexusreader_application_addapplication_51",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_maui_mauiprogram_cs_createmauiapp_nexusreader_application_dependencyinjection_assembly_54",
+                "label": "Call Dependency Injection",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Maui/MauiProgram.cs",
+                  "NexusReader.Application"
+                ]
+              }
+            ],
+            "businessValue": 0.94,
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "low",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_maui_app_startup_and_composition",
+            "name": "MAUI app startup and composition",
+            "rank": 10,
+            "score": 0.681,
+            "scoreBreakdown": {
+              "businessValue": 0.94,
+              "evidenceStrength": 0.76,
+              "architectureCoverage": 0.667,
+              "executionTruth": 0.37,
+              "userComprehension": 0.66
+            },
+            "reason": "Ranked because MAUI app startup and composition combines business value 0.94, evidence strength 0.76, architecture coverage 0.67, execution truth 0.37, and comprehension 0.66 for a total score of 0.68.",
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "low"
+          },
+          "selection": {
+            "flowId": "flow_maui_app_startup_and_composition",
+            "name": "MAUI app startup and composition",
+            "state": "rejected",
+            "rank": 10,
+            "score": 0.681,
+            "reason": "Rejected because MAUI app startup and composition has validation issues: weak-evidence, flat-flow.",
+            "evidencePaths": [
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Application",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "low",
+            "validationIssues": [
+              {
+                "code": "weak-evidence",
+                "severity": "warn",
+                "flowId": "flow_maui_app_startup_and_composition",
+                "message": "Flow MAUI app startup and composition has weak evidence coverage for publication."
+              },
+              {
+                "code": "flat-flow",
+                "severity": "warn",
+                "flowId": "flow_maui_app_startup_and_composition",
+                "message": "Flow MAUI app startup and composition is too flat and does not preserve enough execution truth for publication."
+              }
+            ]
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_wasm_client_startup_and_di_validation",
+            "name": "WASM client startup and DI validation",
+            "description": "WASM client startup and DI validation starts at NexusReader.Web.Client/Program.cs and follows 8 grounded steps: Enter Program (top level startup) -> Call Throwing Db Context Factory. -> Call Throwing Embedding Generator. -> Call Throwing Book Storage Service. -> ....",
+            "capabilityId": "capability_wasm_client_startup_and_di_validation",
+            "domainIds": [
+              "account",
+              "addeddate",
+              "ai",
+              "ai_chat_embeddings",
+              "ai_action",
+              "ai_assistant_sidebar_knowledge_quiz_components",
+              "ai_assisted_summarization",
+              "ai_configuration",
+              "ai_ingestion_knowledge_units",
+              "ai_token_limit",
+              "ai_token_limits",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "ai_verification",
+              "ai_knowledge",
+              "ai_knowledge_microsoft_extensions_ai",
+              "ai_modeling",
+              "aitoken_accounting",
+              "aitokenlimit",
+              "aitokens",
+              "android",
+              "answer",
+              "answer_submission",
+              "answering",
+              "application_health_readiness",
+              "application_layer_integration",
+              "asp_net_identity",
+              "asp_net_identity_roles_claims_tokens_logins",
+              "aspnet_identity_roles_users_claims",
+              "auth",
+              "authentication",
+              "authentication_authorization_blazor_auth_components",
+              "authentication_claims",
+              "authentication_state_notification",
+              "authentication_token_access_refresh",
+              "authentication_identity",
+              "author",
+              "authorization",
+              "authorization_prouser_policy",
+              "authorization_policy",
+              "authorization_policy",
+              "background_jobs_hangfire",
+              "background_processing",
+              "billing",
+              "billing_stripe_integration",
+              "blazor_component_composition",
+              "blazor_webassembly_hosting_server_client",
+              "block",
+              "block_node",
+              "block_textsegmentblock",
+              "block_scrolling_highlighting",
+              "book",
+              "book_ebook_file",
+              "change_notification",
+              "chapter",
+              "chapter_readerpage",
+              "chapter_index",
+              "chapter_retrieval",
+              "chapter_readingorder",
+              "citation",
+              "client_wasm",
+              "command",
+              "configuration_json_env_file_support",
+              "configuration_preferences",
+              "connection_session",
+              "content_hashing_cache_key",
+              "content_normalization",
+              "contentblock",
+              "contentblock_textsegmentblock_aiactiontriggerblock",
+              "contenthash",
+              "context_snippet",
+              "contextblock_contextblockid",
+              "cookie_based_sign_in",
+              "cosinedistance",
+              "cover",
+              "cover_cover_image",
+              "coverimage",
+              "createdat",
+              "customer",
+              "database_connection",
+              "database_providers_sqlite_postgresql",
+              "debugging_inspect_uri",
+              "description_column",
+              "deterministic_hashing",
+              "development_environment",
+              "device",
+              "device_context_phone_tablet_desktop",
+              "device_sync_broadcast",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "domain_project_boundary_for_nexusreader",
+              "e_book_processing_versone_epub",
+              "ebook",
+              "ebook_chapter",
+              "ebook_epub_ingestion",
+              "ebook_epub_processing",
+              "ebook_processing",
+              "ebookid",
+              "ebooks",
+              "ebooks_lastreadbook",
+              "ebooks_table",
+              "embedding",
+              "embedding_vector",
+              "embeddings",
+              "epub",
+              "epub_metadata",
+              "error_handling_recovery",
+              "external_google_login",
+              "file_storage",
+              "focus_mode_ui_state",
+              "focusmode",
+              "graph",
+              "graph_db_neo4j",
+              "graph_extraction",
+              "graph_relationships",
+              "graphdata",
+              "graphlink",
+              "graphnode",
+              "grounded_ai_response",
+              "groundedness",
+              "groundedness_score_rationale",
+              "groundedresponse",
+              "groundedresponse_answer_citations",
+              "grounding_fact_checking",
+              "identity",
+              "identity_authenticationstateprovider",
+              "identity_roles_claims_logins",
+              "identity_logout",
+              "in_process_messaging_mediator_patterns_mediatr",
+              "ingestion",
+              "ingestion_progress",
+              "ingestion_preview",
+              "initializationstatus",
+              "ios",
+              "isunlimitedtokens",
+              "js_interop",
+              "jwt",
+              "key_value_storage",
+              "keyconcept",
+              "knowledge",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledge_extraction",
+              "knowledge_graph",
+              "knowledge_graph_expansion",
+              "knowledge_integration",
+              "knowledge_retrieval",
+              "knowledge_unit_vector_embeddings",
+              "knowledge_unit_link_graph_edges",
+              "knowledge_unit_segmentation",
+              "knowledge_ai_cache",
+              "knowledgegraph",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgelink",
+              "knowledgepacket",
+              "knowledgeservice",
+              "knowledgeunit",
+              "knowledgeunit_vector_embeddings",
+              "knowledgeunit_vectorized_content",
+              "knowledgeunitlink",
+              "knowledgeunitlink_relations",
+              "lastreadbook_scope_selector",
+              "lastreadbookdto",
+              "lastreaddate",
+              "library",
+              "library_ingestion",
+              "library_question",
+              "link",
+              "llm_model_selection",
+              "loading_state",
+              "local_hosting",
+              "localepubmetadata",
+              "localstorage",
+              "logging",
+              "logging_abstraction",
+              "logout",
+              "maccatalyst",
+              "mapping_dtos",
+              "maui",
+              "maui_razor_components",
+              "metadata",
+              "mobile",
+              "mobile_client_ui",
+              "model_and_prompt_versioning",
+              "native_storage",
+              "navigation",
+              "navigation_book_chapter_selection",
+              "nexususer",
+              "nexususer_admin",
+              "nexususer_application_user",
+              "nexususer_identity",
+              "node",
+              "node_selection",
+              "node_selection_interaction",
+              "options",
+              "page",
+              "path_url",
+              "payments",
+              "payments_stripe",
+              "persistence",
+              "persistence_ef_core",
+              "plan",
+              "platform_specific_infrastructure",
+              "platform_specific_native_storage_bridge",
+              "preferences_based_storage",
+              "prerendering_safe_storage_access",
+              "pricing",
+              "pro_subscription",
+              "productid",
+              "profile",
+              "progress",
+              "progress_lastreadbook",
+              "provenance",
+              "query",
+              "question",
+              "quiz",
+              "quiz_active_quiz_block",
+              "quiz_quizquestion",
+              "quiz_availability_updates",
+              "quiz_generation",
+              "quiz_results",
+              "quiz_state",
+              "quizquestion",
+              "quizresult",
+              "quizresults",
+              "rate_size_limits_and_retry_policy",
+              "reader",
+              "reader_readercanvas",
+              "reader_navigation",
+              "reader_navigation_state",
+              "reader_session_content",
+              "readerpage",
+              "readerpage_content_blocks",
+              "readerpage_readerpageviewmodel",
+              "reading_lastreadbook",
+              "reading_progress",
+              "reading_progress_sync",
+              "readingprogress",
+              "readingsession",
+              "readingstate",
+              "real_time_sync",
+              "real_time_sync_broadcast",
+              "real_time_updates_signalr_client",
+              "real_time_background_jobs_hangfire",
+              "reconnect",
+              "relationtype",
+              "relevance_percentage",
+              "relevantcontext",
+              "resilience_and_http_retries",
+              "result",
+              "result_tresponse",
+              "retry_countdown",
+              "role",
+              "roles",
+              "score_percentage",
+              "search",
+              "search_result",
+              "secrets_config_management_usersecrets",
+              "secure_alias_no_op",
+              "secure_client_storage",
+              "secure_storage",
+              "selection_based_interactions",
+              "semantic_cache",
+              "semantic_embeddings_and_vector_search",
+              "semantic_knowledge_cache",
+              "semantic_search",
+              "semanticknowledgecache",
+              "semanticknowledgecache_ai_semantic_caching",
+              "semanticsearch",
+              "semanticsearchresult_snippet_relevancescore_sourcebooktitle",
+              "session",
+              "session_resume",
+              "session_cookie_sign_in_orchestration",
+              "settings",
+              "shared_ui",
+              "shared_ui_imports",
+              "stripe",
+              "stripe_stripeproductid",
+              "stripeproductid",
+              "subscription",
+              "subscription_plan",
+              "subscription_plan",
+              "subscriptionplan",
+              "summarization_quiz_generation",
+              "sync",
+              "tenant",
+              "tenant_user_isolation",
+              "tenant_scoping",
+              "tenant_scoping_tenantid_from_auth_claims",
+              "tenantid",
+              "tenantid_userid_multitenancy_audit_metadata",
+              "tenantisolation",
+              "text_selection",
+              "text_selection_coordinates",
+              "theme",
+              "theme_focus_mode",
+              "token",
+              "token_refresh",
+              "token_storage",
+              "topic",
+              "typography",
+              "ui_feedback_loading_state",
+              "ui_shared",
+              "ui_state",
+              "ui_icons",
+              "user",
+              "user_aspnetusers",
+              "user_identity",
+              "user_nexususer",
+              "user_devices",
+              "user_preferences",
+              "user_profile_last_read_book",
+              "user_registration",
+              "user_roles",
+              "user_sessions_connected_devices",
+              "user_ownership",
+              "userprofile",
+              "userprofiledto",
+              "vector_embeddings_storage_pgvector",
+              "vector_search_pgvector",
+              "vector_search_embeddings",
+              "vector_store_qdrant",
+              "vibration",
+              "web_root_relative_static_asset_paths_uploads_covers",
+              "windows"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_entry",
+                "label": "Enter Program (top level startup)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingdbcontextfactory_ctor_49",
+                "label": "Call Throwing Db Context Factory.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingembeddinggenerator_ctor_50",
+                "label": "Call Throwing Embedding Generator.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingbookstorageservice_ctor_51",
+                "label": "Call Throwing Book Storage Service.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingebookrepository_ctor_52",
+                "label": "Call Throwing Ebook Repository.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_self_throwingsyncbroadcaster_ctor_53",
+                "label": "Call Throwing Sync Broadcaster.",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_nexusreader_application_addapplication_55",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "NexusReader.Application"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_program_cs_program_top_level_startup_result",
+                "label": "Complete Program (top level startup)",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Program.cs",
+                  "self"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_wasm_client_startup_and_di_validation",
+            "name": "WASM client startup and DI validation",
+            "rank": 11,
+            "score": 0.549,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.7,
+              "architectureCoverage": 0.667,
+              "executionTruth": 0.11,
+              "userComprehension": 0.1
+            },
+            "reason": "Ranked because WASM client startup and DI validation combines business value 0.95, evidence strength 0.70, architecture coverage 0.67, execution truth 0.11, and comprehension 0.10 for a total score of 0.55.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_wasm_client_startup_and_di_validation",
+            "name": "WASM client startup and DI validation",
+            "state": "rejected",
+            "rank": 11,
+            "score": 0.549,
+            "reason": "Rejected because WASM client startup and DI validation has validation issues: flat-flow.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Program.cs",
+              "self",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": [
+              {
+                "code": "flat-flow",
+                "severity": "warn",
+                "flowId": "flow_wasm_client_startup_and_di_validation",
+                "message": "Flow WASM client startup and DI validation is too flat and does not preserve enough execution truth for publication."
+              }
+            ]
+          }
+        }
+      ]
+    },
+    {
+      "documentFilename": "realtime-and-sync.md",
+      "documentTitle": "Real-Time Sync, SignalR and Broadcast",
+      "relativeOutputPath": "flows/realtime-and-sync.md",
+      "collectionKind": "flows",
+      "publicationTier": "secondary",
+      "candidates": [
+        {
+          "flow": {
+            "id": "flow_update_progress",
+            "name": "Update Progress",
+            "description": "Update Progress starts at NexusReader.Infrastructure/RealTime/SyncHub.cs and follows 9 grounded steps: Enter Update Progress -> Reads repository or persistence state -> Evaluates branch condition -> Call Update Reading Progress Command (ctor) -> ....",
+            "capabilityId": "capability_update_progress",
+            "domainIds": [
+              "connection_session",
+              "device_sync_broadcast",
+              "ebook",
+              "ingestion",
+              "ingestion_progress",
+              "page",
+              "progress",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "sync",
+              "user",
+              "user_devices",
+              "user_sessions_connected_devices"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_entry",
+                "label": "Enter Update Progress",
+                "kind": "entrypoint",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_updateprogress_repository_read_21_0",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_updateprogress_branch_22_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_nexusreader_application_commands_sync_updatereadingprogresscommand_cs_updatereadingprogresscommand_ctor_24",
+                "label": "Call Update Reading Progress Command (ctor)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_external_call",
+                "label": "Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_external_call",
+                "label": "_mediator.Send(...) (MediatR)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_persistence_read",
+                "label": "var userId = Context.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_persistence_read",
+                "label": "await _mediator.Send(new UpdateReadingProgressCommand(pageId, userId, ebookId, progress, chapterTitle, chapterIndex, Context.ConnectionId));",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_realtime_synchub_cs_updateprogress_result",
+                "label": "Complete Update Progress",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_update_progress",
+            "name": "Update Progress",
+            "rank": 1,
+            "score": 0.803,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.533,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Update Progress combines business value 0.95, evidence strength 0.53, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.80.",
+            "evidencePaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_update_progress",
+            "name": "Update Progress",
+            "state": "selected",
+            "rank": 1,
+            "score": 0.803,
+            "reason": "Selected because Update Progress ranked #1 with score 0.80 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_cross_client_notification_flow_server_side",
+            "name": "Cross-Client Notification Flow (server-side)",
+            "description": "Cross-Client Notification Flow (server-side) starts at NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs and follows 10 grounded steps: Enter Handle -> Reads repository or persistence state -> Evaluates branch condition -> Returns result -> ....",
+            "capabilityId": "capability_cross_client_notification_flow_server_side",
+            "domainIds": [
+              "connection_session",
+              "device_sync_broadcast",
+              "ebook",
+              "ingestion",
+              "ingestion_progress",
+              "page",
+              "progress",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "sync",
+              "user",
+              "user_devices",
+              "user_sessions_connected_devices"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+              "NexusReader.Application.Abstractions.Messaging/ISyncBroadcaster.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_entry",
+                "label": "Enter Handle",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+                  "NexusReader.Application.Abstractions.Messaging/ISyncBroadcaster.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_handle_repository_read_30_0",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_handle_branch_31_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_handle_return_33_2",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_return_59",
+                "label": "Return success result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_nexusreader_application_abstractions_messaging_isyncbroadcaster_cs_broadcastprogressasync_52",
+                "label": "Call Broadcast Progress Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+                  "NexusReader.Application.Abstractions.Messaging/ISyncBroadcaster.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_external_call",
+                "label": "await _broadcaster.BroadcastProgressAsync(request.UserId, request.PageId, now, request.ExcludedConnectionId, cancellationToken)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_persistence_read",
+                "label": "var user = await context.Users.FirstOrDefaultAsync(u => u.Id == request.UserId, cancellationToken);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_persistence_read",
+                "label": "var ebook = await context.Ebooks.FirstOrDefaultAsync(e => e.Id == request.EbookId, cancellationToken);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_commands_sync_updatereadingprogresscommandhandler_cs_handle_persistence_read",
+                "label": "await context.SaveChangesAsync(cancellationToken);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+              "NexusReader.Application.Abstractions.Messaging/ISyncBroadcaster.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_cross_client_notification_flow_server_side",
+            "name": "Cross-Client Notification Flow (server-side)",
+            "rank": 2,
+            "score": 0.798,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.58,
+              "architectureCoverage": 0.917,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Cross-Client Notification Flow (server-side) combines business value 0.95, evidence strength 0.58, architecture coverage 0.92, execution truth 1.00, and comprehension 0.18 for a total score of 0.80.",
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+              "NexusReader.Application.Abstractions.Messaging/ISyncBroadcaster.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_cross_client_notification_flow_server_side",
+            "name": "Cross-Client Notification Flow (server-side)",
+            "state": "selected",
+            "rank": 2,
+            "score": 0.798,
+            "reason": "Selected because Cross-Client Notification Flow (server-side) ranked #2 with score 0.80 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+              "NexusReader.Application.Abstractions.Messaging/ISyncBroadcaster.cs",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_reading_progress_sync_flow",
+            "name": "Reading Progress Sync Flow",
+            "description": "Reading Progress Sync Flow starts at NexusReader.UI.Shared/Services/SyncService.cs and follows 8 grounded steps: Enter Update Progress Async -> Guards early exit or rejection path -> Evaluates branch condition -> Calls external dependency -> ....",
+            "capabilityId": "capability_reading_progress_sync_flow",
+            "domainIds": [
+              "connection_session",
+              "device_sync_broadcast",
+              "ebook",
+              "ingestion",
+              "ingestion_progress",
+              "page",
+              "progress",
+              "reading_progress",
+              "readingprogress",
+              "real_time_sync",
+              "sync",
+              "user",
+              "user_devices",
+              "user_sessions_connected_devices"
+            ],
+            "entrypointPaths": [
+              "NexusReader.UI.Shared/Services/SyncService.cs",
+              "self",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_entry",
+                "label": "Enter Update Progress Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/SyncService.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_updateprogressasync_guard_clause_72_0",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/SyncService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_updateprogressasync_branch_85_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/SyncService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_updateprogressasync_external_call_89_3",
+                "label": "Calls external dependency",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/SyncService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_return_100",
+                "label": "Immediate return Ok to caller",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/SyncService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_updateprogressasync_return_100_5",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/SyncService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_self_initializeasync_85",
+                "label": "Call Initialize Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/SyncService.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_external_call",
+                "label": "await _hubConnection.SendAsync(\"UpdateProgress\", pageId, ebookId, progress, chapterTitle, token);",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/SyncService.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Services/SyncService.cs",
+              "self",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_reading_progress_sync_flow",
+            "name": "Reading Progress Sync Flow",
+            "rank": 3,
+            "score": 0.793,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.625,
+              "architectureCoverage": 0.833,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Reading Progress Sync Flow combines business value 0.95, evidence strength 0.63, architecture coverage 0.83, execution truth 1.00, and comprehension 0.18 for a total score of 0.79.",
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Services/SyncService.cs",
+              "self",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_reading_progress_sync_flow",
+            "name": "Reading Progress Sync Flow",
+            "state": "selected",
+            "rank": 3,
+            "score": 0.793,
+            "reason": "Selected because Reading Progress Sync Flow ranked #3 with score 0.79 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Services/SyncService.cs",
+              "self",
+              "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        }
+      ]
+    },
+    {
+      "documentFilename": "security-identity-auth.md",
+      "documentTitle": "Security, Identity and Authorization",
+      "relativeOutputPath": "flows/security-identity-auth.md",
+      "collectionKind": "flows",
+      "publicationTier": "secondary",
+      "candidates": [
+        {
+          "flow": {
+            "id": "flow_get_authentication_state_async",
+            "name": "Get Authentication State Async",
+            "description": "Get Authentication State Async starts at NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs and follows 7 grounded steps: Enter Get Authentication State Async -> Guards early exit or rejection path -> Evaluates branch condition -> Returns result -> ....",
+            "capabilityId": "capability_get_authentication_state_async",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+              "NexusReader.Application.Abstractions.Services/INativeStorageService.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_entry",
+                "label": "Enter Get Authentication State Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+                  "NexusReader.Application.Abstractions.Services/INativeStorageService.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_getauthenticationstateasync_guard_clause_35_0",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_getauthenticationstateasync_branch_41_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_getauthenticationstateasync_return_54_3",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_return_76",
+                "label": "Return anonymous principal fallback",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_nexusreader_application_abstractions_services_inativestorageservice_cs_getsecurestring_37",
+                "label": "Call Get Secure String",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+                  "NexusReader.Application.Abstractions.Services/INativeStorageService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_services_nexusauthenticationstateprovider_cs_getauthenticationstateasync_self_createstate_49",
+                "label": "Call Create State",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+                  "self"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+              "NexusReader.Application.Abstractions.Services/INativeStorageService.cs",
+              "self",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_get_authentication_state_async",
+            "name": "Get Authentication State Async",
+            "rank": 1,
+            "score": 0.866,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.914,
+              "architectureCoverage": 0.75,
+              "executionTruth": 1,
+              "userComprehension": 0.42
+            },
+            "reason": "Ranked because Get Authentication State Async combines business value 0.95, evidence strength 0.91, architecture coverage 0.75, execution truth 1.00, and comprehension 0.42 for a total score of 0.87.",
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+              "NexusReader.Application.Abstractions.Services/INativeStorageService.cs",
+              "self",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_get_authentication_state_async",
+            "name": "Get Authentication State Async",
+            "state": "selected",
+            "rank": 1,
+            "score": 0.866,
+            "reason": "Selected because Get Authentication State Async ranked #1 with score 0.87 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+              "NexusReader.Application.Abstractions.Services/INativeStorageService.cs",
+              "self",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_server_side_login_profile_access",
+            "name": "Server-side login / profile access",
+            "description": "Server-side login / profile access starts at NexusReader.Web/Services/ServerIdentityService.cs and follows 7 grounded steps: Enter Login Async -> Guards early exit or rejection path -> Reads repository or persistence state -> Evaluates branch condition -> ....",
+            "capabilityId": "capability_server_side_login_profile_access",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Services/ServerIdentityService.cs",
+              "unknown",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_services_serveridentityservice_cs_loginasync_entry",
+                "label": "Enter Login Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Services/ServerIdentityService.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_web_services_serveridentityservice_cs_loginasync_loginasync_guard_clause_44_1",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Services/ServerIdentityService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_services_serveridentityservice_cs_loginasync_loginasync_repository_read_43_0",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Services/ServerIdentityService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_services_serveridentityservice_cs_loginasync_loginasync_branch_51_3",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Services/ServerIdentityService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_services_serveridentityservice_cs_loginasync_loginasync_return_54_4",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Services/ServerIdentityService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_services_serveridentityservice_cs_loginasync_unknown_usermanager_findbyemailasync_43",
+                "label": "Call User Manager",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Services/ServerIdentityService.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_web_services_serveridentityservice_cs_loginasync_persistence_read",
+                "label": "var user = await _userManager.FindByEmailAsync(email);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Services/ServerIdentityService.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Services/ServerIdentityService.cs",
+              "unknown",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_server_side_login_profile_access",
+            "name": "Server-side login / profile access",
+            "rank": 2,
+            "score": 0.862,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.829,
+              "architectureCoverage": 0.833,
+              "executionTruth": 1,
+              "userComprehension": 0.42
+            },
+            "reason": "Ranked because Server-side login / profile access combines business value 0.95, evidence strength 0.83, architecture coverage 0.83, execution truth 1.00, and comprehension 0.42 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.Web/Services/ServerIdentityService.cs",
+              "unknown",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_server_side_login_profile_access",
+            "name": "Server-side login / profile access",
+            "state": "selected",
+            "rank": 2,
+            "score": 0.862,
+            "reason": "Selected because Server-side login / profile access ranked #2 with score 0.86 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Services/ServerIdentityService.cs",
+              "unknown",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_authorization_pro_subscription_token_limit_enforcement",
+            "name": "Authorization: Pro subscription / Token limit enforcement",
+            "description": "Authorization: Pro subscription / Token limit enforcement starts at NexusReader.Application/Security/Authorization/ProUserHandler.cs and follows 7 grounded steps: Enter Handle Requirement Async -> Reads repository or persistence state -> Evaluates branch condition -> Returns result -> ....",
+            "capabilityId": "capability_authorization_pro_subscription_token_limit_enforcement",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Data.Persistence",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_entry",
+                "label": "Enter Handle Requirement Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+                  "NexusReader.Data.Persistence"
+                ]
+              },
+              {
+                "id": "nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_handlerequirementasync_repository_read_24_0",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_handlerequirementasync_branch_25_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_handlerequirementasync_return_27_2",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_nexusreader_data_persistence_appdbcontext_users_firstordefaultasync_includes_subscriptionplan_31",
+                "label": "Call App Db Context.Users",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+                  "NexusReader.Data.Persistence"
+                ]
+              },
+              {
+                "id": "nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_persistence_read",
+                "label": "var userId = context.User.FindFirstValue(ClaimTypes.NameIdentifier);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_application_security_authorization_prouserhandler_cs_handlerequirementasync_persistence_read",
+                "label": "context.Succeed(requirement);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Application/Security/Authorization/ProUserHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Data.Persistence",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_authorization_pro_subscription_token_limit_enforcement",
+            "name": "Authorization: Pro subscription / Token limit enforcement",
+            "rank": 3,
+            "score": 0.843,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.743,
+              "architectureCoverage": 0.833,
+              "executionTruth": 1,
+              "userComprehension": 0.42
+            },
+            "reason": "Ranked because Authorization: Pro subscription / Token limit enforcement combines business value 0.95, evidence strength 0.74, architecture coverage 0.83, execution truth 1.00, and comprehension 0.42 for a total score of 0.84.",
+            "evidencePaths": [
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Data.Persistence",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_authorization_pro_subscription_token_limit_enforcement",
+            "name": "Authorization: Pro subscription / Token limit enforcement",
+            "state": "selected",
+            "rank": 3,
+            "score": 0.843,
+            "reason": "Selected because Authorization: Pro subscription / Token limit enforcement ranked #3 with score 0.84 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Data.Persistence",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_client_side_api_call_with_automatic_token_attach_refresh",
+            "name": "Client-side API call with automatic token attach & refresh",
+            "description": "Client-side API call with automatic token attach & refresh starts at NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs and follows 12 grounded steps: Enter Send Async -> Falls back to alternate path -> Calls external dependency -> Evaluates branch condition -> ....",
+            "capabilityId": "capability_client_side_api_call_with_automatic_token_attach_refresh",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_entry",
+                "label": "Enter Send Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "self",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_fallback_73_6",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_external_call_27_0",
+                "label": "Calls external dependency",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_branch_45_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_return_95_11",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_return_109",
+                "label": "Return response",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_self_clonehttprequestmessageasync_93",
+                "label": "Call Clone Http Request Message Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_getsecurestring_47",
+                "label": "Call Get Secure String",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_refreshtokenasync_78",
+                "label": "Call Refresh Token Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_logoutasync_87",
+                "label": "Call Logout Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
+                "label": "protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
+                "label": "var response = await base.SendAsync(request, cancellationToken);",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_client_side_api_call_with_automatic_token_attach_refresh",
+            "name": "Client-side API call with automatic token attach & refresh",
+            "rank": 4,
+            "score": 0.825,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.7,
+              "architectureCoverage": 0.917,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Client-side API call with automatic token attach & refresh combines business value 0.95, evidence strength 0.70, architecture coverage 0.92, execution truth 1.00, and comprehension 0.18 for a total score of 0.82.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_client_side_api_call_with_automatic_token_attach_refresh",
+            "name": "Client-side API call with automatic token attach & refresh",
+            "state": "selected",
+            "rank": 4,
+            "score": 0.825,
+            "reason": "Selected because Client-side API call with automatic token attach & refresh ranked #4 with score 0.82 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_send_async",
+            "name": "Send Async",
+            "description": "Send Async starts at NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs and follows 12 grounded steps: Enter Send Async -> Falls back to alternate path -> Calls external dependency -> Evaluates branch condition -> ....",
+            "capabilityId": "capability_send_async",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_entry",
+                "label": "Enter Send Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "self",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_fallback_73_6",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_external_call_27_0",
+                "label": "Calls external dependency",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_branch_45_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_return_95_11",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_return_109",
+                "label": "Return response",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_self_clonehttprequestmessageasync_93",
+                "label": "Call Clone Http Request Message Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_getsecurestring_47",
+                "label": "Call Get Secure String",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_refreshtokenasync_78",
+                "label": "Call Refresh Token Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_logoutasync_87",
+                "label": "Call Logout Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
+                "label": "protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
+                "label": "var response = await base.SendAsync(request, cancellationToken);",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_send_async",
+            "name": "Send Async",
+            "rank": 5,
+            "score": 0.825,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.7,
+              "architectureCoverage": 0.917,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Send Async combines business value 0.95, evidence strength 0.70, architecture coverage 0.92, execution truth 1.00, and comprehension 0.18 for a total score of 0.82.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_send_async",
+            "name": "Send Async",
+            "state": "selected",
+            "rank": 5,
+            "score": 0.825,
+            "reason": "Selected because Send Async ranked #5 with score 0.82 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_handle_requirement_async",
+            "name": "Handle Requirement Async",
+            "description": "Handle Requirement Async starts at NexusReader.Infrastructure/Identity/TokenLimitHandler.cs and follows 11 grounded steps: Enter Handle Requirement Async -> Reads repository or persistence state -> Evaluates branch condition -> Returns result -> ....",
+            "capabilityId": "capability_handle_requirement_async",
+            "domainIds": [
+              "ai_token_limit",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "ai_tokens_token_limits",
+              "auth",
+              "authentication",
+              "authentication_claims",
+              "authorization_policy",
+              "authorization_policy",
+              "jwt",
+              "pro_subscription",
+              "secure_client_storage",
+              "subscriptionplan",
+              "tenant",
+              "token_refresh",
+              "user",
+              "user_roles"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "unknown",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_entry",
+                "label": "Enter Handle Requirement Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_handlerequirementasync_repository_read_28_0",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_handlerequirementasync_branch_29_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_handlerequirementasync_return_31_2",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_unknown_claimsprincipal_findfirstvalue_28",
+                "label": "Call Claims Principal",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_unknown_idbcontextfactory_appdbcontext_createdbcontext_34",
+                "label": "Call IDb Context Factory<App Db Context>",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_unknown_dbset_users_include_firstordefaultasync_35",
+                "label": "Call Db Set<Users>",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_unknown_authorizationhandlercontext_succeed_47",
+                "label": "Call Authorization Handler Context",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_persistence_read",
+                "label": "var userId = context.User.FindFirstValue(ClaimTypes.NameIdentifier);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_persistence_read",
+                "label": "db.Users.Include(u => u.SubscriptionPlan).FirstOrDefaultAsync(u => u.Id == userId) - loads user and navigation property",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_infrastructure_identity_tokenlimithandler_cs_handlerequirementasync_persistence_read",
+                "label": "context.Succeed(requirement);",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "unknown",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_handle_requirement_async",
+            "name": "Handle Requirement Async",
+            "rank": 6,
+            "score": 0.791,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.618,
+              "architectureCoverage": 0.833,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Handle Requirement Async combines business value 0.95, evidence strength 0.62, architecture coverage 0.83, execution truth 1.00, and comprehension 0.18 for a total score of 0.79.",
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "unknown",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_handle_requirement_async",
+            "name": "Handle Requirement Async",
+            "state": "rejected",
+            "rank": 6,
+            "score": 0.791,
+            "reason": "Rejected because Handle Requirement Async ranked #6, outside the top 5 publication slots.",
+            "evidencePaths": [
+              "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+              "unknown",
+              "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+              "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        }
+      ]
+    },
+    {
+      "documentFilename": "top-business-flows.md",
+      "documentTitle": "Top Business Flows",
+      "relativeOutputPath": "business/top-business-flows.md",
+      "collectionKind": "business",
+      "publicationTier": "primary",
+      "candidates": [
+        {
+          "flow": {
+            "id": "flow_ebook_retrieval_ingestion_flow",
+            "name": "Ebook Retrieval / Ingestion Flow",
+            "description": "Ebook Retrieval / Ingestion Flow starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ebook_retrieval_ingestion_flow",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_ebook_retrieval_ingestion_flow",
+            "name": "Ebook Retrieval / Ingestion Flow",
+            "rank": 1,
+            "score": 0.861,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.8,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Ebook Retrieval / Ingestion Flow combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_ebook_retrieval_ingestion_flow",
+            "name": "Ebook Retrieval / Ingestion Flow",
+            "state": "selected",
+            "rank": 1,
+            "score": 0.861,
+            "reason": "Selected because Ebook Retrieval / Ingestion Flow ranked #1 with score 0.86 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ensure_database_initialized",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "rank": 2,
+            "score": 0.861,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.8,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Ensure Database Initialized combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "state": "selected",
+            "rank": 2,
+            "score": 0.861,
+            "reason": "Selected because Ensure Database Initialized ranked #2 with score 0.86 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_handle_subscription_success",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "rank": 3,
+            "score": 0.861,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.8,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Handle Subscription Success combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "state": "selected",
+            "rank": 3,
+            "score": 0.861,
+            "reason": "Selected because Handle Subscription Success ranked #3 with score 0.86 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_knowledge_question_semantic_search_flow",
+            "name": "Knowledge Question / Semantic Search Flow",
+            "description": "Knowledge Question / Semantic Search Flow starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_knowledge_question_semantic_search_flow",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_knowledge_question_semantic_search_flow",
+            "name": "Knowledge Question / Semantic Search Flow",
+            "rank": 4,
+            "score": 0.861,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.8,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Knowledge Question / Semantic Search Flow combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_knowledge_question_semantic_search_flow",
+            "name": "Knowledge Question / Semantic Search Flow",
+            "state": "selected",
+            "rank": 4,
+            "score": 0.861,
+            "reason": "Selected because Knowledge Question / Semantic Search Flow ranked #4 with score 0.86 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_program_top_level",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_program_top_level",
+            "name": "Program (top level)",
+            "rank": 5,
+            "score": 0.861,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.8,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Program (top level) combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_program_top_level",
+            "name": "Program (top level)",
+            "state": "selected",
+            "rank": 5,
+            "score": 0.861,
+            "reason": "Selected because Program (top level) ranked #5 with score 0.86 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_user_authentication_login_register_flow",
+            "name": "User Authentication (Login/Register) Flow",
+            "description": "User Authentication (Login/Register) Flow starts at NexusReader.UI.Shared/Pages/Account/Login.razor and follows 9 grounded steps: Enter Handle Login -> Falls back to alternate path -> Evaluates branch condition -> Reads repository or persistence state -> ....",
+            "capabilityId": "capability_user_authentication_login_register_flow",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.UI.Shared/Pages/Account/Login.razor",
+              "NexusReader.UI.Shared/Services/IIdentityService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_entry",
+                "label": "Enter Handle Login",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor",
+                  "NexusReader.UI.Shared/Services/IIdentityService.cs",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_handlelogin_fallback_139_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_handlelogin_branch_134_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_handlelogin_repository_read_141_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_nexusreader_ui_shared_services_iidentityservice_cs_loginasync_133",
+                "label": "Call Login Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor",
+                  "NexusReader.UI.Shared/Services/IIdentityService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_unknown_nexusauth_submitloginform_js_via_ijsruntime_137",
+                "label": "Call nexus Auth",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor",
+                  "unknown"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_external_call",
+                "label": "await IdentityService.LoginAsync(...)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_persistence_read",
+                "label": "_errorMessage = result.Errors.FirstOrDefault()?.Message ?? \"Nieprawidłowy e-mail lub hasło.\";",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor"
+                ]
+              },
+              {
+                "id": "nexusreader_ui_shared_pages_account_login_razor_handlelogin_result",
+                "label": "Complete Handle Login",
+                "kind": "result",
+                "evidencePaths": [
+                  "NexusReader.UI.Shared/Pages/Account/Login.razor",
+                  "NexusReader.UI.Shared/Services/IIdentityService.cs",
+                  "unknown"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Pages/Account/Login.razor",
+              "NexusReader.UI.Shared/Services/IIdentityService.cs",
+              "unknown",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_user_authentication_login_register_flow",
+            "name": "User Authentication (Login/Register) Flow",
+            "rank": 6,
+            "score": 0.861,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.8,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because User Authentication (Login/Register) Flow combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Pages/Account/Login.razor",
+              "NexusReader.UI.Shared/Services/IIdentityService.cs",
+              "unknown",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_user_authentication_login_register_flow",
+            "name": "User Authentication (Login/Register) Flow",
+            "state": "rejected",
+            "rank": 6,
+            "score": 0.861,
+            "reason": "Rejected because User Authentication (Login/Register) Flow ranked #6, outside the top 5 publication slots.",
+            "evidencePaths": [
+              "NexusReader.UI.Shared/Pages/Account/Login.razor",
+              "NexusReader.UI.Shared/Services/IIdentityService.cs",
+              "unknown",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_token_attach_refresh_flow_client_http",
+            "name": "Token Attach & Refresh Flow (Client HTTP)",
+            "description": "Token Attach & Refresh Flow (Client HTTP) starts at NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs and follows 12 grounded steps: Enter Send Async -> Falls back to alternate path -> Calls external dependency -> Evaluates branch condition -> ....",
+            "capabilityId": "capability_token_attach_refresh_flow_client_http",
+            "domainIds": [
+              "account",
+              "ai_token_usage_limits",
+              "ai_tokens",
+              "ai_tokens_aitokensused_aitokenlimit",
+              "auth",
+              "authentication",
+              "author",
+              "authorization_policy",
+              "command",
+              "cookie_based_sign_in",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "external_google_login",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "nexususer_identity",
+              "pro_subscription",
+              "query",
+              "quiz_state",
+              "reader_navigation",
+              "real_time_sync_broadcast",
+              "result",
+              "result_tresponse",
+              "secure_client_storage",
+              "session_cookie_sign_in_orchestration",
+              "subscription_plan",
+              "subscriptionplan",
+              "sync",
+              "tenantid",
+              "theme_focus_mode",
+              "token_refresh",
+              "user",
+              "user_registration",
+              "userprofile"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_entry",
+                "label": "Enter Send Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "self",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_fallback_73_6",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_external_call_27_0",
+                "label": "Calls external dependency",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_branch_45_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_return_95_11",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_return_109",
+                "label": "Return response",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_self_clonehttprequestmessageasync_93",
+                "label": "Call Clone Http Request Message Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_getsecurestring_47",
+                "label": "Call Get Secure String",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_refreshtokenasync_78",
+                "label": "Call Refresh Token Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_logoutasync_87",
+                "label": "Call Logout Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
+                "label": "protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
+                "label": "var response = await base.SendAsync(request, cancellationToken);",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_token_attach_refresh_flow_client_http",
+            "name": "Token Attach & Refresh Flow (Client HTTP)",
+            "rank": 7,
+            "score": 0.825,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.7,
+              "architectureCoverage": 0.917,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Token Attach & Refresh Flow (Client HTTP) combines business value 0.95, evidence strength 0.70, architecture coverage 0.92, execution truth 1.00, and comprehension 0.18 for a total score of 0.82.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_token_attach_refresh_flow_client_http",
+            "name": "Token Attach & Refresh Flow (Client HTTP)",
+            "state": "rejected",
+            "rank": 7,
+            "score": 0.825,
+            "reason": "Rejected because Token Attach & Refresh Flow (Client HTTP) ranked #7, outside the top 5 publication slots.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        }
+      ]
+    },
+    {
+      "documentFilename": "web-client-wasm.md",
+      "documentTitle": "Blazor WebAssembly Client: hosting, handlers, and platform services",
+      "relativeOutputPath": "flows/web-client-wasm.md",
+      "collectionKind": "flows",
+      "publicationTier": "secondary",
+      "candidates": [
+        {
+          "flow": {
+            "id": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "description": "Ensure Database Initialized starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_ensure_database_initialized",
+            "domainIds": [
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "nexususer_identity",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "secure_client_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "rank": 1,
+            "score": 0.861,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.8,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Ensure Database Initialized combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_ensure_database_initialized",
+            "name": "Ensure Database Initialized",
+            "state": "selected",
+            "rank": 1,
+            "score": 0.861,
+            "reason": "Selected because Ensure Database Initialized ranked #1 with score 0.86 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "description": "Handle Subscription Success starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_handle_subscription_success",
+            "domainIds": [
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "nexususer_identity",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "secure_client_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "rank": 2,
+            "score": 0.861,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.8,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Handle Subscription Success combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_handle_subscription_success",
+            "name": "Handle Subscription Success",
+            "state": "selected",
+            "rank": 2,
+            "score": 0.861,
+            "reason": "Selected because Handle Subscription Success ranked #2 with score 0.86 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_program_top_level",
+            "name": "Program (top level)",
+            "description": "Program (top level) starts at NexusReader.Web/Program.cs and follows 12 grounded steps: Enter Program (top level) -> Falls back to alternate path -> Repeats work over a collection or condition -> Guards early exit or rejection path -> ....",
+            "capabilityId": "capability_program_top_level",
+            "domainIds": [
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "nexususer_identity",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "secure_client_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_entry",
+                "label": "Enter Program (top level)",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs",
+                  "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+                  "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_fallback_66_1",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_loop_186_12",
+                "label": "Repeats work over a collection or condition",
+                "kind": "iteration",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_guard_clause_255_32",
+                "label": "Guards early exit or rejection path",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_switch_385_80",
+                "label": "Branches across multiple outcomes",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_branch_62_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_repository_read_125_2",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_return_137_9",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_program_top_level_validation_171_11",
+                "label": "Validates input or state",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_application_dependencyinjection_cs_addapplication_78",
+                "label": "Call Add Application",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Application/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_infrastructure_dependencyinjection_cs_addinfrastructure_79",
+                "label": "Call Add Infrastructure",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Infrastructure/DependencyInjection.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_program_cs_program_top_level_nexusreader_data_persistence_dbinitializer_cs_dbinitializer_seedasync_196",
+                "label": "Call Db Initializer",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web/Program.cs",
+                  "NexusReader.Data.Persistence/DbInitializer.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_program_top_level",
+            "name": "Program (top level)",
+            "rank": 3,
+            "score": 0.861,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.8,
+              "architectureCoverage": 1,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because Program (top level) combines business value 0.95, evidence strength 0.80, architecture coverage 1.00, execution truth 1.00, and comprehension 0.18 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_program_top_level",
+            "name": "Program (top level)",
+            "state": "selected",
+            "rank": 3,
+            "score": 0.861,
+            "reason": "Selected because Program (top level) ranked #3 with score 0.86 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web/Program.cs",
+              "NexusReader.Application/DependencyInjection.cs",
+              "NexusReader.Infrastructure/DependencyInjection.cs",
+              "NexusReader.Data.Persistence/DbInitializer.cs",
+              "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+              "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_knowledge_api_call_flow",
+            "name": "Knowledge API Call Flow",
+            "description": "Knowledge API Call Flow starts at NexusReader.Web.Client/Services/WasmKnowledgeService.cs and follows 7 grounded steps: Enter Get Relevant Context Async -> Evaluates branch condition -> Reads repository or persistence state -> Return Ok or Fail depending on deserialization -> ....",
+            "capabilityId": "capability_knowledge_api_call_flow",
+            "domainIds": [
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "nexususer_identity",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "secure_client_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_entry",
+                "label": "Enter Get Relevant Context Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_getrelevantcontextasync_branch_42_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_getrelevantcontextasync_repository_read_45_1",
+                "label": "Reads repository or persistence state",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_return_45",
+                "label": "Return Ok or Fail depending on deserialization",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_getrelevantcontextasync_return_45_2",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_external_call",
+                "label": "POST /api/knowledge/relevant with { query, tenantId }",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmknowledgeservice_cs_getrelevantcontextasync_persistence_read",
+                "label": "return context != null ? Result.Ok(context) : Result.Fail(\"Failed to deserialize relevant context.\");",
+                "kind": "persistence",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmKnowledgeService.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_knowledge_api_call_flow",
+            "name": "Knowledge API Call Flow",
+            "rank": 4,
+            "score": 0.858,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.743,
+              "architectureCoverage": 0.917,
+              "executionTruth": 1,
+              "userComprehension": 0.42
+            },
+            "reason": "Ranked because Knowledge API Call Flow combines business value 0.95, evidence strength 0.74, architecture coverage 0.92, execution truth 1.00, and comprehension 0.42 for a total score of 0.86.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_knowledge_api_call_flow",
+            "name": "Knowledge API Call Flow",
+            "state": "selected",
+            "rank": 4,
+            "score": 0.858,
+            "reason": "Selected because Knowledge API Call Flow ranked #4 with score 0.86 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_wasm_authentication_header_and_token_refresh",
+            "name": "WASM Authentication Header and Token Refresh",
+            "description": "WASM Authentication Header and Token Refresh starts at NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs and follows 12 grounded steps: Enter Send Async -> Falls back to alternate path -> Calls external dependency -> Evaluates branch condition -> ....",
+            "capabilityId": "capability_wasm_authentication_header_and_token_refresh",
+            "domainIds": [
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "nexususer_identity",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "secure_client_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_entry",
+                "label": "Enter Send Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "self",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_fallback_73_6",
+                "label": "Falls back to alternate path",
+                "kind": "fallback",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_external_call_27_0",
+                "label": "Calls external dependency",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_branch_45_1",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_sendasync_return_95_11",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_return_109",
+                "label": "Return response",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_self_clonehttprequestmessageasync_93",
+                "label": "Call Clone Http Request Message Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "self"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_getsecurestring_47",
+                "label": "Call Get Secure String",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_refreshtokenasync_78",
+                "label": "Call Refresh Token Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_nexusreader_application_abstractions_services_logoutasync_87",
+                "label": "Call Logout Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+                  "NexusReader.Application.Abstractions.Services"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
+                "label": "protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_handlers_authenticationheaderhandler_cs_sendasync_external_call",
+                "label": "var response = await base.SendAsync(request, cancellationToken);",
+                "kind": "integration",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.95,
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_wasm_authentication_header_and_token_refresh",
+            "name": "WASM Authentication Header and Token Refresh",
+            "rank": 5,
+            "score": 0.825,
+            "scoreBreakdown": {
+              "businessValue": 0.95,
+              "evidenceStrength": 0.7,
+              "architectureCoverage": 0.917,
+              "executionTruth": 1,
+              "userComprehension": 0.18
+            },
+            "reason": "Ranked because WASM Authentication Header and Token Refresh combines business value 0.95, evidence strength 0.70, architecture coverage 0.92, execution truth 1.00, and comprehension 0.18 for a total score of 0.82.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high"
+          },
+          "selection": {
+            "flowId": "flow_wasm_authentication_header_and_token_refresh",
+            "name": "WASM Authentication Header and Token Refresh",
+            "state": "selected",
+            "rank": 5,
+            "score": 0.825,
+            "reason": "Selected because WASM Authentication Header and Token Refresh ranked #5 with score 0.82 above the selection threshold 0.60.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+              "self",
+              "NexusReader.Application.Abstractions.Services",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "high",
+            "validationIssues": []
+          }
+        },
+        {
+          "flow": {
+            "id": "flow_epub_content_retrieval_flow",
+            "name": "Epub Content Retrieval Flow",
+            "description": "Epub Content Retrieval Flow starts at NexusReader.Web.Client/Services/WasmEpubService.cs and follows 3 grounded steps: Enter Get Epub Content Async -> Evaluates branch condition -> Returns result.",
+            "capabilityId": "capability_epub_content_retrieval_flow",
+            "domainIds": [
+              "application_layer_integration",
+              "auth",
+              "authentication",
+              "author",
+              "chapter_retrieval",
+              "client_wasm",
+              "devicecontext",
+              "devicetype",
+              "displayorientation",
+              "ebook",
+              "ebook_epub_ingestion",
+              "embedding",
+              "epub",
+              "groundedness",
+              "groundedresponse",
+              "identity_authenticationstateprovider",
+              "jwt",
+              "knowledge_knowledge_service_graph_summary",
+              "knowledgegraph_knowledgecoordinator",
+              "knowledgepacket",
+              "localepubmetadata",
+              "nexususer_identity",
+              "quiz_state",
+              "reader_navigation",
+              "readerpage",
+              "real_time_sync_broadcast",
+              "relevantcontext",
+              "secure_client_storage",
+              "semanticsearch",
+              "shared_ui",
+              "subscriptionplan",
+              "sync",
+              "theme_focus_mode",
+              "token_refresh",
+              "vibration"
+            ],
+            "entrypointPaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "supportingFlowIds": [],
+            "steps": [
+              {
+                "id": "nexusreader_web_client_services_wasmepubservice_cs_getepubcontentasync_entry",
+                "label": "Enter Get Epub Content Async",
+                "kind": "processing",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmEpubService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmepubservice_cs_getepubcontentasync_getepubcontentasync_branch_26_0",
+                "label": "Evaluates branch condition",
+                "kind": "decision",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmEpubService.cs"
+                ]
+              },
+              {
+                "id": "nexusreader_web_client_services_wasmepubservice_cs_getepubcontentasync_getepubcontentasync_return_29_1",
+                "label": "Returns result",
+                "kind": "return",
+                "evidencePaths": [
+                  "NexusReader.Web.Client/Services/WasmEpubService.cs"
+                ]
+              }
+            ],
+            "businessValue": 0.89,
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "low",
+            "unknowns": []
+          },
+          "ranking": {
+            "flowId": "flow_epub_content_retrieval_flow",
+            "name": "Epub Content Retrieval Flow",
+            "rank": 6,
+            "score": 0.737,
+            "scoreBreakdown": {
+              "businessValue": 0.89,
+              "evidenceStrength": 0.76,
+              "architectureCoverage": 0.75,
+              "executionTruth": 0.68,
+              "userComprehension": 0.42
+            },
+            "reason": "Ranked because Epub Content Retrieval Flow combines business value 0.89, evidence strength 0.76, architecture coverage 0.75, execution truth 0.68, and comprehension 0.42 for a total score of 0.74.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "low"
+          },
+          "selection": {
+            "flowId": "flow_epub_content_retrieval_flow",
+            "name": "Epub Content Retrieval Flow",
+            "state": "rejected",
+            "rank": 6,
+            "score": 0.737,
+            "reason": "Rejected because Epub Content Retrieval Flow has validation issues: weak-evidence.",
+            "evidencePaths": [
+              "NexusReader.Web.Client/Services/WasmEpubService.cs",
+              "NexusReader.Web.Client/Program.cs",
+              "NexusReader.Maui/MauiProgram.cs",
+              "NexusReader.Web/Program.cs"
+            ],
+            "confidence": "low",
+            "validationIssues": [
+              {
+                "code": "weak-evidence",
+                "severity": "warn",
+                "flowId": "flow_epub_content_retrieval_flow",
+                "message": "Flow Epub Content Retrieval Flow has weak evidence coverage for publication."
+              }
+            ]
+          }
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/flow-selection.json b/src/.documentation/machine/flow-selection.json
new file mode 100644
index 0000000..8e0a543
--- /dev/null
+++ b/src/.documentation/machine/flow-selection.json
@@ -0,0 +1,1721 @@
+{
+  "generatedAt": "2026-05-22T06:57:31.157Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "stats": {
+    "documentCount": 10,
+    "selectedCount": 46,
+    "rejectedCount": 29
+  },
+  "validation": {
+    "status": "warn",
+    "issueCount": 17,
+    "issues": [
+      {
+        "code": "weak-evidence",
+        "severity": "warn",
+        "flowId": "flow_ai_groundedness_verification",
+        "message": "Flow AI groundedness verification has weak evidence coverage for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_reader_page_retrieval_and_progress_sync",
+        "message": "Flow Reader page retrieval and progress sync is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "weak-evidence",
+        "severity": "warn",
+        "flowId": "flow_maui_app_composition_and_handler_discovery",
+        "message": "Flow MAUI app composition and handler discovery has weak evidence coverage for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_maui_app_composition_and_handler_discovery",
+        "message": "Flow MAUI app composition and handler discovery is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_wasm_client_startup_and_di_validation",
+        "message": "Flow WASM client startup and DI validation is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_schema_evolution_via_ef_core_migrations",
+        "message": "Flow Schema evolution via EF Core migrations is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "weak-evidence",
+        "severity": "warn",
+        "flowId": "flow_app_composition_and_maui_bootstrap",
+        "message": "Flow App composition and MAUI bootstrap has weak evidence coverage for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_app_composition_and_maui_bootstrap",
+        "message": "Flow App composition and MAUI bootstrap is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_wasm_di_bootstrap_stub_registration",
+        "message": "Flow WASM DI bootstrap & stub registration is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_token_authorization_flow",
+        "message": "Flow Token Authorization Flow is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "weak-evidence",
+        "severity": "warn",
+        "flowId": "flow_maui_app_startup_flow",
+        "message": "Flow MAUI App Startup Flow has weak evidence coverage for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_maui_app_startup_flow",
+        "message": "Flow MAUI App Startup Flow is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_mobile_api_http_flow",
+        "message": "Flow Mobile -> API HTTP Flow is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "weak-evidence",
+        "severity": "warn",
+        "flowId": "flow_maui_app_startup_and_composition",
+        "message": "Flow MAUI app startup and composition has weak evidence coverage for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_maui_app_startup_and_composition",
+        "message": "Flow MAUI app startup and composition is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "flat-flow",
+        "severity": "warn",
+        "flowId": "flow_wasm_client_startup_and_di_validation",
+        "message": "Flow WASM client startup and DI validation is too flat and does not preserve enough execution truth for publication."
+      },
+      {
+        "code": "weak-evidence",
+        "severity": "warn",
+        "flowId": "flow_epub_content_retrieval_flow",
+        "message": "Flow Epub Content Retrieval Flow has weak evidence coverage for publication."
+      }
+    ]
+  },
+  "documents": [
+    {
+      "documentFilename": "application-layer.md",
+      "documentTitle": "Application Layer: Commands, Queries and DTOs",
+      "relativeOutputPath": "domains/application-layer.md",
+      "collectionKind": "domains",
+      "publicationTier": "secondary",
+      "selected": [
+        {
+          "flowId": "flow_ensure_database_initialized",
+          "name": "Ensure Database Initialized",
+          "state": "selected",
+          "rank": 2,
+          "score": 0.873,
+          "reason": "Selected because Ensure Database Initialized ranked #2 with score 0.87 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_handle_subscription_success",
+          "name": "Handle Subscription Success",
+          "state": "selected",
+          "rank": 3,
+          "score": 0.873,
+          "reason": "Selected because Handle Subscription Success ranked #3 with score 0.87 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_program_top_level",
+          "name": "Program (top level)",
+          "state": "selected",
+          "rank": 4,
+          "score": 0.873,
+          "reason": "Selected because Program (top level) ranked #4 with score 0.87 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_web_minimal_api_application_handler_dispatch",
+          "name": "Web Minimal API → Application handler dispatch",
+          "state": "selected",
+          "rank": 5,
+          "score": 0.873,
+          "reason": "Selected because Web Minimal API → Application handler dispatch ranked #5 with score 0.87 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        }
+      ],
+      "rejected": [
+        {
+          "flowId": "flow_ai_groundedness_verification",
+          "name": "AI groundedness verification",
+          "state": "rejected",
+          "rank": 1,
+          "score": 0.875,
+          "reason": "Rejected because AI groundedness verification has validation issues: weak-evidence.",
+          "evidencePaths": [
+            "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+            "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "low",
+          "validationIssues": [
+            {
+              "code": "weak-evidence",
+              "severity": "warn",
+              "flowId": "flow_ai_groundedness_verification",
+              "message": "Flow AI groundedness verification has weak evidence coverage for publication."
+            }
+          ]
+        },
+        {
+          "flowId": "flow_semantic_search_library_qa",
+          "name": "Semantic search / Library QA",
+          "state": "rejected",
+          "rank": 6,
+          "score": 0.858,
+          "reason": "Rejected because Semantic search / Library QA ranked #6, outside the top 5 publication slots.",
+          "evidencePaths": [
+            "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+            "NexusReader.Data.Persistence/AppDbContext.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_ebook_ingestion",
+          "name": "Ebook ingestion",
+          "state": "rejected",
+          "rank": 7,
+          "score": 0.854,
+          "reason": "Rejected because Ebook ingestion ranked #7, outside the top 5 publication slots.",
+          "evidencePaths": [
+            "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_quiz_answer_submission",
+          "name": "Quiz answer submission",
+          "state": "rejected",
+          "rank": 8,
+          "score": 0.854,
+          "reason": "Rejected because Quiz answer submission ranked #8, outside the top 5 publication slots.",
+          "evidencePaths": [
+            "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+            "NexusReader.Application.Abstractions.Services",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "medium",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_reader_page_retrieval_and_progress_sync",
+          "name": "Reader page retrieval and progress sync",
+          "state": "rejected",
+          "rank": 9,
+          "score": 0.72,
+          "reason": "Rejected because Reader page retrieval and progress sync has validation issues: flat-flow.",
+          "evidencePaths": [
+            "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": [
+            {
+              "code": "flat-flow",
+              "severity": "warn",
+              "flowId": "flow_reader_page_retrieval_and_progress_sync",
+              "message": "Flow Reader page retrieval and progress sync is too flat and does not preserve enough execution truth for publication."
+            }
+          ]
+        },
+        {
+          "flowId": "flow_maui_app_composition_and_handler_discovery",
+          "name": "MAUI app composition and handler discovery",
+          "state": "rejected",
+          "rank": 10,
+          "score": 0.683,
+          "reason": "Rejected because MAUI app composition and handler discovery has validation issues: weak-evidence, flat-flow.",
+          "evidencePaths": [
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Application",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "low",
+          "validationIssues": [
+            {
+              "code": "weak-evidence",
+              "severity": "warn",
+              "flowId": "flow_maui_app_composition_and_handler_discovery",
+              "message": "Flow MAUI app composition and handler discovery has weak evidence coverage for publication."
+            },
+            {
+              "code": "flat-flow",
+              "severity": "warn",
+              "flowId": "flow_maui_app_composition_and_handler_discovery",
+              "message": "Flow MAUI app composition and handler discovery is too flat and does not preserve enough execution truth for publication."
+            }
+          ]
+        },
+        {
+          "flowId": "flow_knowledge_graph_retrieval",
+          "name": "Knowledge graph retrieval",
+          "state": "rejected",
+          "rank": 11,
+          "score": 0.671,
+          "reason": "Rejected because Knowledge graph retrieval ranked #11, outside the top 5 publication slots.",
+          "evidencePaths": [
+            "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "medium",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_wasm_client_startup_and_di_validation",
+          "name": "WASM client startup and DI validation",
+          "state": "rejected",
+          "rank": 12,
+          "score": 0.566,
+          "reason": "Rejected because WASM client startup and DI validation has validation issues: flat-flow.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Program.cs",
+            "self",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/Commands/Library/IngestEbookRequest.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": [
+            {
+              "code": "flat-flow",
+              "severity": "warn",
+              "flowId": "flow_wasm_client_startup_and_di_validation",
+              "message": "Flow WASM client startup and DI validation is too flat and does not preserve enough execution truth for publication."
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "documentFilename": "business-overview.md",
+      "documentTitle": "Business Overview",
+      "relativeOutputPath": "business/business-overview.md",
+      "collectionKind": "business",
+      "publicationTier": "primary",
+      "selected": [
+        {
+          "flowId": "flow_authentication_login_register_flow",
+          "name": "Authentication (Login/Register) Flow",
+          "state": "selected",
+          "rank": 1,
+          "score": 0.861,
+          "reason": "Selected because Authentication (Login/Register) Flow ranked #1 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Account/Login.razor",
+            "NexusReader.UI.Shared/Services/IIdentityService.cs",
+            "unknown",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_ensure_database_initialized",
+          "name": "Ensure Database Initialized",
+          "state": "selected",
+          "rank": 2,
+          "score": 0.861,
+          "reason": "Selected because Ensure Database Initialized ranked #2 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_handle_subscription_success",
+          "name": "Handle Subscription Success",
+          "state": "selected",
+          "rank": 3,
+          "score": 0.861,
+          "reason": "Selected because Handle Subscription Success ranked #3 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_knowledge_query_api_flow",
+          "name": "Knowledge Query API Flow",
+          "state": "selected",
+          "rank": 4,
+          "score": 0.861,
+          "reason": "Selected because Knowledge Query API Flow ranked #4 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_program_top_level",
+          "name": "Program (top level)",
+          "state": "selected",
+          "rank": 5,
+          "score": 0.861,
+          "reason": "Selected because Program (top level) ranked #5 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        }
+      ],
+      "rejected": [
+        {
+          "flowId": "flow_http_request_token_refresh_flow",
+          "name": "HTTP Request + Token Refresh Flow",
+          "state": "rejected",
+          "rank": 6,
+          "score": 0.825,
+          "reason": "Rejected because HTTP Request + Token Refresh Flow ranked #6, outside the top 5 publication slots.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "self",
+            "NexusReader.Application.Abstractions.Services",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        }
+      ]
+    },
+    {
+      "documentFilename": "data-and-persistence.md",
+      "documentTitle": "Data Layer, EF Core and Repositories",
+      "relativeOutputPath": "domains/data-and-persistence.md",
+      "collectionKind": "domains",
+      "publicationTier": "secondary",
+      "selected": [
+        {
+          "flowId": "flow_ensure_database_initialized",
+          "name": "Ensure Database Initialized",
+          "state": "selected",
+          "rank": 1,
+          "score": 0.873,
+          "reason": "Selected because Ensure Database Initialized ranked #1 with score 0.87 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_handle_subscription_success",
+          "name": "Handle Subscription Success",
+          "state": "selected",
+          "rank": 2,
+          "score": 0.873,
+          "reason": "Selected because Handle Subscription Success ranked #2 with score 0.87 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_program_top_level",
+          "name": "Program (top level)",
+          "state": "selected",
+          "rank": 3,
+          "score": 0.873,
+          "reason": "Selected because Program (top level) ranked #3 with score 0.87 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_runtime_data_access_repositories_appdbcontext",
+          "name": "Runtime data access (repositories -> AppDbContext)",
+          "state": "selected",
+          "rank": 4,
+          "score": 0.841,
+          "reason": "Selected because Runtime data access (repositories -> AppDbContext) ranked #4 with score 0.84 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "Application handlers -> IEbookRepository (NexusReader.Infrastructure/Persistence/EbookRepository.cs)",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_database_initialization_and_seeding_robust_startup",
+          "name": "Database initialization and seeding (robust startup)",
+          "state": "selected",
+          "rank": 5,
+          "score": 0.797,
+          "reason": "Selected because Database initialization and seeding (robust startup) ranked #5 with score 0.80 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs -> NexusReader.Data/Persistence/DbInitializer.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        }
+      ],
+      "rejected": [
+        {
+          "flowId": "flow_schema_evolution_via_ef_core_migrations",
+          "name": "Schema evolution via EF Core migrations",
+          "state": "rejected",
+          "rank": 6,
+          "score": 0.766,
+          "reason": "Rejected because Schema evolution via EF Core migrations has validation issues: flat-flow.",
+          "evidencePaths": [
+            "NexusReader.Data/Migrations and NexusReader.Data/Persistence/AppDbContextFactory.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": [
+            {
+              "code": "flat-flow",
+              "severity": "warn",
+              "flowId": "flow_schema_evolution_via_ef_core_migrations",
+              "message": "Flow Schema evolution via EF Core migrations is too flat and does not preserve enough execution truth for publication."
+            }
+          ]
+        },
+        {
+          "flowId": "flow_provider_aware_query_and_provider_specific_features",
+          "name": "Provider-aware query and provider-specific features",
+          "state": "rejected",
+          "rank": 7,
+          "score": 0.699,
+          "reason": "Rejected because Provider-aware query and provider-specific features ranked #7, outside the top 5 publication slots.",
+          "evidencePaths": [
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs and NexusReader.Data/Persistence/AppDbContext.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "medium",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_app_composition_and_maui_bootstrap",
+          "name": "App composition and MAUI bootstrap",
+          "state": "rejected",
+          "rank": 8,
+          "score": 0.683,
+          "reason": "Rejected because App composition and MAUI bootstrap has validation issues: weak-evidence, flat-flow.",
+          "evidencePaths": [
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Application",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "low",
+          "validationIssues": [
+            {
+              "code": "weak-evidence",
+              "severity": "warn",
+              "flowId": "flow_app_composition_and_maui_bootstrap",
+              "message": "Flow App composition and MAUI bootstrap has weak evidence coverage for publication."
+            },
+            {
+              "code": "flat-flow",
+              "severity": "warn",
+              "flowId": "flow_app_composition_and_maui_bootstrap",
+              "message": "Flow App composition and MAUI bootstrap is too flat and does not preserve enough execution truth for publication."
+            }
+          ]
+        },
+        {
+          "flowId": "flow_wasm_di_bootstrap_stub_registration",
+          "name": "WASM DI bootstrap & stub registration",
+          "state": "rejected",
+          "rank": 9,
+          "score": 0.566,
+          "reason": "Rejected because WASM DI bootstrap & stub registration has validation issues: flat-flow.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Program.cs",
+            "self",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure/Persistence/EbookRepository.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": [
+            {
+              "code": "flat-flow",
+              "severity": "warn",
+              "flowId": "flow_wasm_di_bootstrap_stub_registration",
+              "message": "Flow WASM DI bootstrap & stub registration is too flat and does not preserve enough execution truth for publication."
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "documentFilename": "infrastructure-services.md",
+      "documentTitle": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub",
+      "relativeOutputPath": "domains/infrastructure-services.md",
+      "collectionKind": "domains",
+      "publicationTier": "secondary",
+      "selected": [
+        {
+          "flowId": "flow_wasm_knowledge_client_flow",
+          "name": "WASM Knowledge Client Flow",
+          "state": "selected",
+          "rank": 1,
+          "score": 0.877,
+          "reason": "Selected because WASM Knowledge Client Flow ranked #1 with score 0.88 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_ensure_database_initialized",
+          "name": "Ensure Database Initialized",
+          "state": "selected",
+          "rank": 2,
+          "score": 0.873,
+          "reason": "Selected because Ensure Database Initialized ranked #2 with score 0.87 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_epub_chapter_read_flow",
+          "name": "EPUB Chapter Read Flow",
+          "state": "selected",
+          "rank": 3,
+          "score": 0.873,
+          "reason": "Selected because EPUB Chapter Read Flow ranked #3 with score 0.87 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_handle_subscription_success",
+          "name": "Handle Subscription Success",
+          "state": "selected",
+          "rank": 4,
+          "score": 0.873,
+          "reason": "Selected because Handle Subscription Success ranked #4 with score 0.87 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_knowledge_retrieval_caching_flow",
+          "name": "Knowledge Retrieval & Caching Flow",
+          "state": "selected",
+          "rank": 5,
+          "score": 0.873,
+          "reason": "Selected because Knowledge Retrieval & Caching Flow ranked #5 with score 0.87 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        }
+      ],
+      "rejected": [
+        {
+          "flowId": "flow_program_top_level",
+          "name": "Program (top level)",
+          "state": "rejected",
+          "rank": 6,
+          "score": 0.873,
+          "reason": "Rejected because Program (top level) ranked #6, outside the top 5 publication slots.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_stripe_billing_webhook_flow",
+          "name": "Stripe Billing Webhook Flow",
+          "state": "rejected",
+          "rank": 7,
+          "score": 0.873,
+          "reason": "Rejected because Stripe Billing Webhook Flow ranked #7, outside the top 5 publication slots.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_token_authorization_flow",
+          "name": "Token Authorization Flow",
+          "state": "rejected",
+          "rank": 8,
+          "score": 0.591,
+          "reason": "Rejected because Token Authorization Flow has validation issues: flat-flow.",
+          "evidencePaths": [
+            "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs"
+          ],
+          "confidence": "medium",
+          "validationIssues": [
+            {
+              "code": "flat-flow",
+              "severity": "warn",
+              "flowId": "flow_token_authorization_flow",
+              "message": "Flow Token Authorization Flow is too flat and does not preserve enough execution truth for publication."
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "documentFilename": "maui-mobile.md",
+      "documentTitle": "MAUI Mobile Host: App wiring and platform services",
+      "relativeOutputPath": "domains/maui-mobile.md",
+      "collectionKind": "domains",
+      "publicationTier": "secondary",
+      "selected": [
+        {
+          "flowId": "flow_ensure_database_initialized",
+          "name": "Ensure Database Initialized",
+          "state": "selected",
+          "rank": 1,
+          "score": 0.873,
+          "reason": "Selected because Ensure Database Initialized ranked #1 with score 0.87 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_handle_subscription_success",
+          "name": "Handle Subscription Success",
+          "state": "selected",
+          "rank": 2,
+          "score": 0.873,
+          "reason": "Selected because Handle Subscription Success ranked #2 with score 0.87 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_program_top_level",
+          "name": "Program (top level)",
+          "state": "selected",
+          "rank": 3,
+          "score": 0.873,
+          "reason": "Selected because Program (top level) ranked #3 with score 0.87 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_native_storage_access_flow",
+          "name": "Native Storage Access Flow",
+          "state": "selected",
+          "rank": 5,
+          "score": 0.671,
+          "reason": "Selected because Native Storage Access Flow ranked #5 with score 0.67 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "INativeStorageService (injected into consumers)",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+          ],
+          "confidence": "medium",
+          "validationIssues": []
+        }
+      ],
+      "rejected": [
+        {
+          "flowId": "flow_maui_app_startup_flow",
+          "name": "MAUI App Startup Flow",
+          "state": "rejected",
+          "rank": 4,
+          "score": 0.683,
+          "reason": "Rejected because MAUI App Startup Flow has validation issues: weak-evidence, flat-flow.",
+          "evidencePaths": [
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Application",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+          ],
+          "confidence": "low",
+          "validationIssues": [
+            {
+              "code": "weak-evidence",
+              "severity": "warn",
+              "flowId": "flow_maui_app_startup_flow",
+              "message": "Flow MAUI App Startup Flow has weak evidence coverage for publication."
+            },
+            {
+              "code": "flat-flow",
+              "severity": "warn",
+              "flowId": "flow_maui_app_startup_flow",
+              "message": "Flow MAUI App Startup Flow is too flat and does not preserve enough execution truth for publication."
+            }
+          ]
+        },
+        {
+          "flowId": "flow_platform_vibration_device_context_flow",
+          "name": "Platform Vibration / Device Context Flow",
+          "state": "rejected",
+          "rank": 6,
+          "score": 0.671,
+          "reason": "Rejected because Platform Vibration / Device Context Flow ranked #6, outside the top 5 publication slots.",
+          "evidencePaths": [
+            "IPlatformService (injected into UI/services)",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+          ],
+          "confidence": "medium",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_mobile_api_http_flow",
+          "name": "Mobile -> API HTTP Flow",
+          "state": "rejected",
+          "rank": 7,
+          "score": 0.591,
+          "reason": "Rejected because Mobile -> API HTTP Flow has validation issues: flat-flow.",
+          "evidencePaths": [
+            "HttpClient configured in NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+          ],
+          "confidence": "medium",
+          "validationIssues": [
+            {
+              "code": "flat-flow",
+              "severity": "warn",
+              "flowId": "flow_mobile_api_http_flow",
+              "message": "Flow Mobile -> API HTTP Flow is too flat and does not preserve enough execution truth for publication."
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "documentFilename": "overview.md",
+      "documentTitle": "Project Overview and Architecture",
+      "relativeOutputPath": "collections/overview.md",
+      "collectionKind": "collections",
+      "publicationTier": "primary",
+      "selected": [
+        {
+          "flowId": "flow_knowledge_request_server_flow",
+          "name": "Knowledge request (server) flow",
+          "state": "selected",
+          "rank": 1,
+          "score": 0.921,
+          "reason": "Selected because Knowledge request (server) flow ranked #1 with score 0.92 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/KnowledgeService.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_ensure_database_initialized",
+          "name": "Ensure Database Initialized",
+          "state": "selected",
+          "rank": 2,
+          "score": 0.861,
+          "reason": "Selected because Ensure Database Initialized ranked #2 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_program_top_level",
+          "name": "Program (top level)",
+          "state": "selected",
+          "rank": 3,
+          "score": 0.861,
+          "reason": "Selected because Program (top level) ranked #3 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_auth_profile_sync_and_token_lifecycle",
+          "name": "Auth / profile sync and token lifecycle",
+          "state": "selected",
+          "rank": 4,
+          "score": 0.858,
+          "reason": "Selected because Auth / profile sync and token lifecycle ranked #4 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Layout/MainHubLayout.razor -> NexusReader.Application/Queries/User/GetUserProfileQuery.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_reading_progress_sync_signalr_mediatr_broadcaster",
+          "name": "Reading progress sync (SignalR -> MediatR -> Broadcaster)",
+          "state": "selected",
+          "rank": 5,
+          "score": 0.847,
+          "reason": "Selected because Reading progress sync (SignalR -> MediatR -> Broadcaster) ranked #5 with score 0.85 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        }
+      ],
+      "rejected": [
+        {
+          "flowId": "flow_ui_driven_knowledge_graph_quiz_flow_client_side_coordinator",
+          "name": "UI-driven knowledge graph / quiz flow (client-side coordinator)",
+          "state": "rejected",
+          "rank": 6,
+          "score": 0.819,
+          "reason": "Rejected because UI-driven knowledge graph / quiz flow (client-side coordinator) ranked #6, outside the top 5 publication slots.",
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+            "unknown",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_billing_webhook_and_subscription_reconciliation",
+          "name": "Billing webhook and subscription reconciliation",
+          "state": "rejected",
+          "rank": 7,
+          "score": 0.8,
+          "reason": "Rejected because Billing webhook and subscription reconciliation ranked #7, outside the top 5 publication slots.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs -> NexusReader.Infrastructure/Services/BillingService.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_epub_ingestion_and_knowledge_unit_creation",
+          "name": "EPUB ingestion and knowledge-unit creation",
+          "state": "rejected",
+          "rank": 8,
+          "score": 0.795,
+          "reason": "Rejected because EPUB ingestion and knowledge-unit creation ranked #8, outside the top 5 publication slots.",
+          "evidencePaths": [
+            "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+            "unknown",
+            "self",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_add_infrastructure",
+          "name": "Add Infrastructure",
+          "state": "rejected",
+          "rank": 9,
+          "score": 0.779,
+          "reason": "Rejected because Add Infrastructure ranked #9, outside the top 5 publication slots.",
+          "evidencePaths": [
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Infrastructure/Persistence/AppDbContext.cs",
+            "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_maui_app_startup_and_composition",
+          "name": "MAUI app startup and composition",
+          "state": "rejected",
+          "rank": 10,
+          "score": 0.681,
+          "reason": "Rejected because MAUI app startup and composition has validation issues: weak-evidence, flat-flow.",
+          "evidencePaths": [
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Application",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "low",
+          "validationIssues": [
+            {
+              "code": "weak-evidence",
+              "severity": "warn",
+              "flowId": "flow_maui_app_startup_and_composition",
+              "message": "Flow MAUI app startup and composition has weak evidence coverage for publication."
+            },
+            {
+              "code": "flat-flow",
+              "severity": "warn",
+              "flowId": "flow_maui_app_startup_and_composition",
+              "message": "Flow MAUI app startup and composition is too flat and does not preserve enough execution truth for publication."
+            }
+          ]
+        },
+        {
+          "flowId": "flow_wasm_client_startup_and_di_validation",
+          "name": "WASM client startup and DI validation",
+          "state": "rejected",
+          "rank": 11,
+          "score": 0.549,
+          "reason": "Rejected because WASM client startup and DI validation has validation issues: flat-flow.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Program.cs",
+            "self",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": [
+            {
+              "code": "flat-flow",
+              "severity": "warn",
+              "flowId": "flow_wasm_client_startup_and_di_validation",
+              "message": "Flow WASM client startup and DI validation is too flat and does not preserve enough execution truth for publication."
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "documentFilename": "realtime-and-sync.md",
+      "documentTitle": "Real-Time Sync, SignalR and Broadcast",
+      "relativeOutputPath": "flows/realtime-and-sync.md",
+      "collectionKind": "flows",
+      "publicationTier": "secondary",
+      "selected": [
+        {
+          "flowId": "flow_update_progress",
+          "name": "Update Progress",
+          "state": "selected",
+          "rank": 1,
+          "score": 0.803,
+          "reason": "Selected because Update Progress ranked #1 with score 0.80 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_cross_client_notification_flow_server_side",
+          "name": "Cross-Client Notification Flow (server-side)",
+          "state": "selected",
+          "rank": 2,
+          "score": 0.798,
+          "reason": "Selected because Cross-Client Notification Flow (server-side) ranked #2 with score 0.80 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+            "NexusReader.Application.Abstractions.Messaging/ISyncBroadcaster.cs",
+            "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_reading_progress_sync_flow",
+          "name": "Reading Progress Sync Flow",
+          "state": "selected",
+          "rank": 3,
+          "score": 0.793,
+          "reason": "Selected because Reading Progress Sync Flow ranked #3 with score 0.79 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Services/SyncService.cs",
+            "self",
+            "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        }
+      ],
+      "rejected": []
+    },
+    {
+      "documentFilename": "security-identity-auth.md",
+      "documentTitle": "Security, Identity and Authorization",
+      "relativeOutputPath": "flows/security-identity-auth.md",
+      "collectionKind": "flows",
+      "publicationTier": "secondary",
+      "selected": [
+        {
+          "flowId": "flow_get_authentication_state_async",
+          "name": "Get Authentication State Async",
+          "state": "selected",
+          "rank": 1,
+          "score": 0.866,
+          "reason": "Selected because Get Authentication State Async ranked #1 with score 0.87 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+            "NexusReader.Application.Abstractions.Services/INativeStorageService.cs",
+            "self",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+            "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_server_side_login_profile_access",
+          "name": "Server-side login / profile access",
+          "state": "selected",
+          "rank": 2,
+          "score": 0.862,
+          "reason": "Selected because Server-side login / profile access ranked #2 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Services/ServerIdentityService.cs",
+            "unknown",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+            "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_authorization_pro_subscription_token_limit_enforcement",
+          "name": "Authorization: Pro subscription / Token limit enforcement",
+          "state": "selected",
+          "rank": 3,
+          "score": 0.843,
+          "reason": "Selected because Authorization: Pro subscription / Token limit enforcement ranked #3 with score 0.84 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+            "NexusReader.Data.Persistence",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_client_side_api_call_with_automatic_token_attach_refresh",
+          "name": "Client-side API call with automatic token attach & refresh",
+          "state": "selected",
+          "rank": 4,
+          "score": 0.825,
+          "reason": "Selected because Client-side API call with automatic token attach & refresh ranked #4 with score 0.82 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "self",
+            "NexusReader.Application.Abstractions.Services",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+            "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_send_async",
+          "name": "Send Async",
+          "state": "selected",
+          "rank": 5,
+          "score": 0.825,
+          "reason": "Selected because Send Async ranked #5 with score 0.82 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "self",
+            "NexusReader.Application.Abstractions.Services",
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+            "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        }
+      ],
+      "rejected": [
+        {
+          "flowId": "flow_handle_requirement_async",
+          "name": "Handle Requirement Async",
+          "state": "rejected",
+          "rank": 6,
+          "score": 0.791,
+          "reason": "Rejected because Handle Requirement Async ranked #6, outside the top 5 publication slots.",
+          "evidencePaths": [
+            "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+            "unknown",
+            "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+            "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        }
+      ]
+    },
+    {
+      "documentFilename": "top-business-flows.md",
+      "documentTitle": "Top Business Flows",
+      "relativeOutputPath": "business/top-business-flows.md",
+      "collectionKind": "business",
+      "publicationTier": "primary",
+      "selected": [
+        {
+          "flowId": "flow_ebook_retrieval_ingestion_flow",
+          "name": "Ebook Retrieval / Ingestion Flow",
+          "state": "selected",
+          "rank": 1,
+          "score": 0.861,
+          "reason": "Selected because Ebook Retrieval / Ingestion Flow ranked #1 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_ensure_database_initialized",
+          "name": "Ensure Database Initialized",
+          "state": "selected",
+          "rank": 2,
+          "score": 0.861,
+          "reason": "Selected because Ensure Database Initialized ranked #2 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_handle_subscription_success",
+          "name": "Handle Subscription Success",
+          "state": "selected",
+          "rank": 3,
+          "score": 0.861,
+          "reason": "Selected because Handle Subscription Success ranked #3 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_knowledge_question_semantic_search_flow",
+          "name": "Knowledge Question / Semantic Search Flow",
+          "state": "selected",
+          "rank": 4,
+          "score": 0.861,
+          "reason": "Selected because Knowledge Question / Semantic Search Flow ranked #4 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_program_top_level",
+          "name": "Program (top level)",
+          "state": "selected",
+          "rank": 5,
+          "score": 0.861,
+          "reason": "Selected because Program (top level) ranked #5 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        }
+      ],
+      "rejected": [
+        {
+          "flowId": "flow_user_authentication_login_register_flow",
+          "name": "User Authentication (Login/Register) Flow",
+          "state": "rejected",
+          "rank": 6,
+          "score": 0.861,
+          "reason": "Rejected because User Authentication (Login/Register) Flow ranked #6, outside the top 5 publication slots.",
+          "evidencePaths": [
+            "NexusReader.UI.Shared/Pages/Account/Login.razor",
+            "NexusReader.UI.Shared/Services/IIdentityService.cs",
+            "unknown",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_token_attach_refresh_flow_client_http",
+          "name": "Token Attach & Refresh Flow (Client HTTP)",
+          "state": "rejected",
+          "rank": 7,
+          "score": 0.825,
+          "reason": "Rejected because Token Attach & Refresh Flow (Client HTTP) ranked #7, outside the top 5 publication slots.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "self",
+            "NexusReader.Application.Abstractions.Services",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        }
+      ]
+    },
+    {
+      "documentFilename": "web-client-wasm.md",
+      "documentTitle": "Blazor WebAssembly Client: hosting, handlers, and platform services",
+      "relativeOutputPath": "flows/web-client-wasm.md",
+      "collectionKind": "flows",
+      "publicationTier": "secondary",
+      "selected": [
+        {
+          "flowId": "flow_ensure_database_initialized",
+          "name": "Ensure Database Initialized",
+          "state": "selected",
+          "rank": 1,
+          "score": 0.861,
+          "reason": "Selected because Ensure Database Initialized ranked #1 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_handle_subscription_success",
+          "name": "Handle Subscription Success",
+          "state": "selected",
+          "rank": 2,
+          "score": 0.861,
+          "reason": "Selected because Handle Subscription Success ranked #2 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_program_top_level",
+          "name": "Program (top level)",
+          "state": "selected",
+          "rank": 3,
+          "score": 0.861,
+          "reason": "Selected because Program (top level) ranked #3 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs",
+            "NexusReader.Application/DependencyInjection.cs",
+            "NexusReader.Infrastructure/DependencyInjection.cs",
+            "NexusReader.Data.Persistence/DbInitializer.cs",
+            "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+            "NexusReader.Application.Abstractions.Persistence/IEpubReader.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_knowledge_api_call_flow",
+          "name": "Knowledge API Call Flow",
+          "state": "selected",
+          "rank": 4,
+          "score": 0.858,
+          "reason": "Selected because Knowledge API Call Flow ranked #4 with score 0.86 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        },
+        {
+          "flowId": "flow_wasm_authentication_header_and_token_refresh",
+          "name": "WASM Authentication Header and Token Refresh",
+          "state": "selected",
+          "rank": 5,
+          "score": 0.825,
+          "reason": "Selected because WASM Authentication Header and Token Refresh ranked #5 with score 0.82 above the selection threshold 0.60.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+            "self",
+            "NexusReader.Application.Abstractions.Services",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "high",
+          "validationIssues": []
+        }
+      ],
+      "rejected": [
+        {
+          "flowId": "flow_epub_content_retrieval_flow",
+          "name": "Epub Content Retrieval Flow",
+          "state": "rejected",
+          "rank": 6,
+          "score": 0.737,
+          "reason": "Rejected because Epub Content Retrieval Flow has validation issues: weak-evidence.",
+          "evidencePaths": [
+            "NexusReader.Web.Client/Services/WasmEpubService.cs",
+            "NexusReader.Web.Client/Program.cs",
+            "NexusReader.Maui/MauiProgram.cs",
+            "NexusReader.Web/Program.cs"
+          ],
+          "confidence": "low",
+          "validationIssues": [
+            {
+              "code": "weak-evidence",
+              "severity": "warn",
+              "flowId": "flow_epub_content_retrieval_flow",
+              "message": "Flow Epub Content Retrieval Flow has weak evidence coverage for publication."
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/phase-inputs/business__business-overview.phase-inputs.json b/src/.documentation/machine/phase-inputs/business__business-overview.phase-inputs.json
new file mode 100644
index 0000000..4952022
--- /dev/null
+++ b/src/.documentation/machine/phase-inputs/business__business-overview.phase-inputs.json
@@ -0,0 +1,9065 @@
+{
+  "generatedAt": "2026-05-22T06:56:57.960Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "business-overview.md",
+    "title": "Business Overview",
+    "kind": "business-overview",
+    "scopeDescription": "Business domains, capabilities, and the major operational value streams across the system.",
+    "relativeOutputPath": "business/business-overview.md",
+    "publicationTier": "primary",
+    "collectionId": "business:business",
+    "collectionKind": "business"
+  },
+  "inputs": {
+    "summaries": [
+      {
+        "path": "NexusReader.Maui/MauiProgram.cs",
+        "artifactPath": "cache/summaries/NexusReader.Maui__MauiProgram.cs.json",
+        "role": "startup",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging."
+      },
+      {
+        "path": "NexusReader.Web.Client/Program.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Program.cs.json",
+        "role": "startup",
+        "layer": "frontend",
+        "methodCount": 15,
+        "typeCount": 5,
+        "purpose": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser."
+      },
+      {
+        "path": "NexusReader.Web/Program.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web__Program.cs.json",
+        "role": "startup",
+        "layer": "application",
+        "methodCount": 22,
+        "typeCount": 4,
+        "purpose": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host."
+      },
+      {
+        "path": "NexusReader.Application/DTOs/User/AuthorDto.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DTOs__User__AuthorDto.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a simple data transfer object representing an author (Id and Name) used by the Application layer to pass user/author data between boundaries."
+      },
+      {
+        "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Security__Authorization__ProUserHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "Authorization handler that enforces 'Pro' user access by checking a user's subscription plan and AI token usage in the application database."
+      },
+      {
+        "path": "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Security__Authorization__ProUserRequirement.cs.json",
+        "role": "unknown",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a marker authorization requirement representing users with an active Pro subscription or sufficient AI tokens for policy-based authorization checks."
+      },
+      {
+        "path": "NexusReader.Domain/Entities/Author.cs",
+        "artifactPath": "cache/summaries/NexusReader.Domain__Entities__Author.cs.json",
+        "role": "entity",
+        "layer": "domain",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Domain entity representing an Author in the NexusReader domain model; declares identity, display name and a navigation collection of related Ebook entities for ORM mapping."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Layout/AuthLayout.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Layout__AuthLayout.razor.json",
+        "role": "ui-component",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 0,
+        "purpose": "Blazor layout component that provides a full-screen, centered authentication shell, injects an auth stylesheet, and renders the routed page content via @Body."
+      },
+      {
+        "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Handlers__AuthenticationHeaderHandler.cs.json",
+        "role": "handler",
+        "layer": "frontend",
+        "methodCount": 3,
+        "typeCount": 1,
+        "purpose": "Delegating HTTP handler used in the Blazor/WebAssembly client to attach JWT Authorization headers to trusted requests and to transparently refresh expired tokens in a thread-safe way."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Account/Login.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Pages__Account__Login.razor.json",
+        "role": "ui-page",
+        "layer": "frontend",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "Blazor Razor page component that renders and handles the login UI (email/password and Google external login), performs validation, calls identity service, and coordinates client-side post-login submission."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Pages__Account__Profile.razor.json",
+        "role": "ui-page",
+        "layer": "frontend",
+        "methodCount": 4,
+        "typeCount": 0,
+        "purpose": "Razor UI page that shows the authenticated user's profile (AI token usage, quiz score, tenant and plan) and provides actions for subscription management and logout."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Account/Register.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Pages__Account__Register.razor.json",
+        "role": "ui-page",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Blazor Register page for creating a new user account: renders registration form, validates input, calls identity service to register and log in, and triggers cookie-based sign-in via a hidden form + JS helper."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Messaging__ICommand.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 2,
+        "purpose": "Defines application-level command abstractions used with MediatR and FluentResults to represent operations that return FluentResults (optionally with a typed payload)."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Messaging__ICommandHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 2,
+        "purpose": "Declares application-level command handler abstractions that adapt MediatR IRequestHandler to return FluentResults.Result, standardizing command handling signatures across the Application layer."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Messaging__IQuery.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a marker interface for application-layer read/query operations that use MediatR and return a FluentResults.Result-wrapped response."
+      },
+      {
+        "path": "NexusReader.Application/DependencyInjection.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DependencyInjection.cs.json",
+        "role": "service-registration",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 0,
+        "purpose": "Provides application-level DI registrations (Mapster mapping config and MediatR handler registration) and exposes the application assembly for composition/root usage."
+      },
+      {
+        "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__DependencyInjection.cs.json",
+        "role": "service-registration",
+        "layer": "infrastructure",
+        "methodCount": 2,
+        "typeCount": 2,
+        "purpose": "Registers and configures infrastructure dependencies: DB contexts, external clients (Qdrant, Neo4j), Hangfire, AI clients/resilience, app services, authorization policies, and related configuration for the NexusReader solution."
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__RealTime__SyncHub.cs.json",
+        "role": "endpoint",
+        "layer": "infrastructure",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "Defines a SignalR Hub (SyncHub) that handles real-time reading-progress updates and per-user connection grouping; it forwards progress updates into the application via MediatR."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__KnowledgeService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 14,
+        "typeCount": 0,
+        "purpose": "Provides AI-driven knowledge extraction, semantic search, RAG retrieval and caching; integrates with DB (Postgres/EF), Qdrant (vector DB), Neo4j (graph), and LLM/chat/embedding clients to produce structured KnowledgePackets, grounded answers, and semantic search DTOs."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__EpubReaderService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 7,
+        "typeCount": 0,
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+        },
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+        },
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+        },
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+        },
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+          "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+          "filePath": "NexusReader.UI.Shared/Pages/Account/Register.razor",
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+          "visibility": "detail-only",
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+          "includedInFlowIds": []
+        }
+      ]
+    }
+  }
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/phase-inputs/business__top-business-flows.phase-inputs.json b/src/.documentation/machine/phase-inputs/business__top-business-flows.phase-inputs.json
new file mode 100644
index 0000000..73334ea
--- /dev/null
+++ b/src/.documentation/machine/phase-inputs/business__top-business-flows.phase-inputs.json
@@ -0,0 +1,9065 @@
+{
+  "generatedAt": "2026-05-22T06:57:31.126Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "top-business-flows.md",
+    "title": "Top Business Flows",
+    "kind": "business-flow",
+    "scopeDescription": "Highest-value business flows that should be published as first-class system entry points.",
+    "relativeOutputPath": "business/top-business-flows.md",
+    "publicationTier": "primary",
+    "collectionId": "business:business",
+    "collectionKind": "business"
+  },
+  "inputs": {
+    "summaries": [
+      {
+        "path": "NexusReader.Maui/MauiProgram.cs",
+        "artifactPath": "cache/summaries/NexusReader.Maui__MauiProgram.cs.json",
+        "role": "startup",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging."
+      },
+      {
+        "path": "NexusReader.Web.Client/Program.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Program.cs.json",
+        "role": "startup",
+        "layer": "frontend",
+        "methodCount": 15,
+        "typeCount": 5,
+        "purpose": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser."
+      },
+      {
+        "path": "NexusReader.Web/Program.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web__Program.cs.json",
+        "role": "startup",
+        "layer": "application",
+        "methodCount": 22,
+        "typeCount": 4,
+        "purpose": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host."
+      },
+      {
+        "path": "NexusReader.Application/DTOs/User/AuthorDto.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DTOs__User__AuthorDto.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a simple data transfer object representing an author (Id and Name) used by the Application layer to pass user/author data between boundaries."
+      },
+      {
+        "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Security__Authorization__ProUserHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "Authorization handler that enforces 'Pro' user access by checking a user's subscription plan and AI token usage in the application database."
+      },
+      {
+        "path": "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Security__Authorization__ProUserRequirement.cs.json",
+        "role": "unknown",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a marker authorization requirement representing users with an active Pro subscription or sufficient AI tokens for policy-based authorization checks."
+      },
+      {
+        "path": "NexusReader.Domain/Entities/Author.cs",
+        "artifactPath": "cache/summaries/NexusReader.Domain__Entities__Author.cs.json",
+        "role": "entity",
+        "layer": "domain",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Domain entity representing an Author in the NexusReader domain model; declares identity, display name and a navigation collection of related Ebook entities for ORM mapping."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Layout/AuthLayout.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Layout__AuthLayout.razor.json",
+        "role": "ui-component",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 0,
+        "purpose": "Blazor layout component that provides a full-screen, centered authentication shell, injects an auth stylesheet, and renders the routed page content via @Body."
+      },
+      {
+        "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Handlers__AuthenticationHeaderHandler.cs.json",
+        "role": "handler",
+        "layer": "frontend",
+        "methodCount": 3,
+        "typeCount": 1,
+        "purpose": "Delegating HTTP handler used in the Blazor/WebAssembly client to attach JWT Authorization headers to trusted requests and to transparently refresh expired tokens in a thread-safe way."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Account/Login.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Pages__Account__Login.razor.json",
+        "role": "ui-page",
+        "layer": "frontend",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "Blazor Razor page component that renders and handles the login UI (email/password and Google external login), performs validation, calls identity service, and coordinates client-side post-login submission."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Account/Profile.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Pages__Account__Profile.razor.json",
+        "role": "ui-page",
+        "layer": "frontend",
+        "methodCount": 4,
+        "typeCount": 0,
+        "purpose": "Razor UI page that shows the authenticated user's profile (AI token usage, quiz score, tenant and plan) and provides actions for subscription management and logout."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Account/Register.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Pages__Account__Register.razor.json",
+        "role": "ui-page",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Blazor Register page for creating a new user account: renders registration form, validates input, calls identity service to register and log in, and triggers cookie-based sign-in via a hidden form + JS helper."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Messaging__ICommand.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
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+}
\ No newline at end of file
diff --git a/src/.documentation/machine/phase-inputs/collections__overview.phase-inputs.json b/src/.documentation/machine/phase-inputs/collections__overview.phase-inputs.json
new file mode 100644
index 0000000..c3be24d
--- /dev/null
+++ b/src/.documentation/machine/phase-inputs/collections__overview.phase-inputs.json
@@ -0,0 +1,26774 @@
+{
+  "generatedAt": "2026-05-22T06:34:42.302Z",
+  "runId": "v4-1779429619297-t7x306q1",
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+      },
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+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Messaging__ICommandHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 2,
+        "purpose": "Declares application-level command handler abstractions that adapt MediatR IRequestHandler to return FluentResults.Result, standardizing command handling signatures across the Application layer."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/IQueryHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Messaging__IQueryHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Defines an application-level abstraction for MediatR query handlers that return a FluentResults Result<TResponse>."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Identity__TokenLimitHandler.cs.json",
+        "role": "handler",
+        "layer": "infrastructure",
+        "methodCount": 2,
+        "typeCount": 0,
+        "purpose": "Authorization handler that verifies whether the current user has available AI tokens or an unlimited token subscription, using the application's DbContext and Identity user data."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IBillingService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Services__IBillingService.cs.json",
+        "role": "service",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "Defines an application-layer billing service contract for handling subscription lifecycle events (updated/deleted) using asynchronous results."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Persistence/IEbookRepository.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Persistence__IEbookRepository.cs.json",
+        "role": "repository",
+        "layer": "application",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "Defines the application-layer abstraction for Ebook and Author persistence operations so higher layers can work without a direct dependency on EF Core or a specific data implementation."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IBookStorageService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Services__IBookStorageService.cs.json",
+        "role": "service",
+        "layer": "application",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "Defines an application-layer abstraction for persisting ebook and cover image files (byte[] or Stream) and returning their relative path/URL; cover save methods may return null when no data is provided."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IIdentityService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Services__IIdentityService.cs.json",
+        "role": "service",
+        "layer": "application",
+        "methodCount": 6,
+        "typeCount": 1,
+        "purpose": "Defines the application-layer contract for identity/authentication operations (register, login, logout, profile, token refresh) and an event to notify consumers when authentication state is invalidated."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IKnowledgeService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Services__IKnowledgeService.cs.json",
+        "role": "service",
+        "layer": "application",
+        "methodCount": 9,
+        "typeCount": 1,
+        "purpose": "Defines the application-level contract for knowledge/AI related operations (semantic search, summarization, groundedness verification, Q&A) used by other layers to interact with AI/knowledge capabilities."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/INativeStorageService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Services__INativeStorageService.cs.json",
+        "role": "service",
+        "layer": "application",
+        "methodCount": 8,
+        "typeCount": 1,
+        "purpose": "Defines an application-level abstraction for synchronous/asynchronous native (including secure) key/value storage operations across platforms."
+      },
+      {
+        "path": "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Commands__Library__IngestEbookCommand.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a CQRS command record used to ingest a new ebook into the library, carrying payload (metadata, content bytes, ownership and tenant info) for application-side handlers."
+      },
+      {
+        "path": "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Commands__AI__VerifyGroundednessCommand.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "Defines a MediatR command (VerifyGroundednessCommand) and its handler which delegates groundedness verification to an IKnowledgeService implementation."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IPlatformService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Services__IPlatformService.cs.json",
+        "role": "service",
+        "layer": "application",
+        "methodCount": 4,
+        "typeCount": 3,
+        "purpose": "Defines an application-level platform abstraction for device capabilities (vibration) and a small device info model (DeviceContext) used by UI/client layers to adapt behavior per device."
+      },
+      {
+        "path": "NexusReader.Application/Commands/Library/IngestEbookRequest.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Commands__Library__IngestEbookRequest.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a command/request DTO used to ingest an ebook into the library (carries metadata and base64-encoded payload)."
+      },
+      {
+        "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Commands__Quiz__SubmitAnswerCommand.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a lightweight CQRS command that carries the user's selected answer index and the correct index for quiz answer submission."
+      },
+      {
+        "path": "NexusReader.Application/Commands/Library/IngestEbookCommandHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Commands__Library__IngestEbookCommandHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 0,
+        "purpose": "Handles ingestion of an EPUB into application storage and persistence: saves files via storage service, ensures/creates author, creates Ebook entity, and persists it returning the new Ebook Id or a failure result."
+      },
+      {
+        "path": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DTOs__AI__GroundedResponseDto.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 2,
+        "purpose": "Defines simple DTOs used to return a grounded AI response (answer plus provenance/citations) from application services."
+      },
+      {
+        "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Commands__Quiz__SubmitAnswerCommandHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 0,
+        "purpose": "Command handler that processes a quiz answer submission: vibrates the device on correct answers and returns success/failure results."
+      },
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Commands__Sync__UpdateReadingProgressCommand.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a MediatR command DTO used to update/sync a user's reading progress for an ebook across the application."
+      },
+      {
+        "path": "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DTOs__AI__SemanticSearchResultDto.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a data transfer object representing a semantic search hit returned by AI/semantic search operations, carrying content identifiers, a snippet, relevance score and optional metadata."
+      },
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Commands__Sync__UpdateReadingProgressCommandHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Handles UpdateReadingProgressCommand: persists a user's reading position to the database and broadcasts the update to other connected devices."
+      },
+      {
+        "path": "NexusReader.Application/DTOs/User/AuthorDto.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DTOs__User__AuthorDto.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a simple data transfer object representing an author (Id and Name) used by the Application layer to pass user/author data between boundaries."
+      },
+      {
+        "path": "NexusReader.Application/DTOs/User/SubscriptionPlanDto.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DTOs__User__SubscriptionPlanDto.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a simple immutable DTO representing a subscription plan used across the application layer (billing/AI quota)."
+      },
+      {
+        "path": "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__Graph__GetKnowledgeGraphQuery.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Defines a CQRS query record that carries input for extracting a knowledge graph from text within a tenant and optional ebook scope."
+      },
+      {
+        "path": "NexusReader.Application/DTOs/User/UserProfileDto.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DTOs__User__UserProfileDto.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 3,
+        "typeCount": 2,
+        "purpose": "Defines application-level DTOs representing a user's profile and their last-read book, including UI helper properties that project domain values and defaults for client consumption."
+      },
+      {
+        "path": "NexusReader.Application/Mappings/MappingConfig.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Mappings__MappingConfig.cs.json",
+        "role": "service-registration",
+        "layer": "application",
+        "methodCount": 1,
+        "typeCount": 0,
+        "purpose": "Defines and registers Mapster mapping configuration and the Mapster IMapper into the application's DI container."
+      },
+      {
+        "path": "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQueryHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__Graph__GetKnowledgeGraphQueryHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 0,
+        "purpose": "Handles GetKnowledgeGraphQuery by delegating to an IKnowledgeService to produce a GraphDataDto (returns empty graph for empty input or on null results)."
+      },
+      {
+        "path": "NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__Library__AskLibraryQuestionQuery.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "Defines a MediatR query (AskLibraryQuestionQuery) and its handler which validates the request and delegates question answering to an IKnowledgeService, returning a grounded AI response."
+      },
+      {
+        "path": "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__Reader__GetReaderPageQuery.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a CQRS query record that models a request to retrieve a specific chapter/page of a user's ebook (ReaderPageViewModel) and carries tenant/user context."
+      },
+      {
+        "path": "NexusReader.Application/Queries/Reader/GetReaderPageQueryHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__Reader__GetReaderPageQueryHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "Handles GetReaderPageQuery requests by delegating to an EPUB reader service to produce a ReaderPageViewModel result."
+      },
+      {
+        "path": "NexusReader.Application/Queries/System/GetInitializationStatusQuery.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__System__GetInitializationStatusQuery.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a CQRS query message used to request the application's initialization status (returns a string)."
+      },
+      {
+        "path": "NexusReader.Application/Queries/Library/GetMyEbooksQuery.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__Library__GetMyEbooksQuery.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "MediatR query + handler that reads the current user's ebooks from the EF Core AppDbContext, projects them to LastReadBookDto and returns a successful FluentResults Result with the list."
+      },
+      {
+        "path": "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__Library__SearchLibrarySemanticallyQuery.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 3,
+        "typeCount": 2,
+        "purpose": "Implements a MediatR query and handler that semantically searches a tenant-scoped semantic cache using an embedding generated for the query text (with retry) and returns mapped DTO results."
+      },
+      {
+        "path": "NexusReader.Application/Queries/System/GetInitializationStatusQueryHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__System__GetInitializationStatusQueryHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Query handler that answers whether the Nexus E-Reader application is initialized; returns a constant success message."
+      },
+      {
+        "path": "NexusReader.Application/Queries/User/GetUserProfileQuery.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__User__GetUserProfileQuery.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a MediatR query message representing a request to retrieve a user's profile (returns a FluentResults Result wrapping a UserProfileDto)."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Identity__TokenLimitRequirement.cs.json",
+        "role": "middleware",
+        "layer": "infrastructure",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines an authorization requirement used to enforce per-user AI token limits (marker type for policy-based authorization)."
+      },
+      {
+        "path": "NexusReader.Application/Queries/User/GetUserProfileQueryHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__User__GetUserProfileQueryHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 0,
+        "purpose": "MediatR query handler that reads a user's profile from the EF Core database, projects it into a UserProfileDto with computed fields (average quiz score, last read book, roles, subscription plan), and returns a FluentResults Result with success or failure."
+      },
+      {
+        "path": "NexusReader.Application/Security/Authorization/ProUserHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Security__Authorization__ProUserHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "Authorization handler that enforces 'Pro' user access by checking a user's subscription plan and AI token usage in the application database."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Persistence__EbookRepository.cs.json",
+        "role": "repository",
+        "layer": "infrastructure",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "EF Core repository implementing IEbookRepository; provides data access for Author and Ebook entities using an AppDbContext, with provider-aware search logic and basic persistence operations."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/BillingService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__BillingService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 3,
+        "typeCount": 0,
+        "purpose": "Infrastructure billing service that reacts to Stripe subscription events, maps Stripe product IDs to internal subscription plans and updates NexusUser records accordingly."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__BookStorageService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 6,
+        "typeCount": 1,
+        "purpose": "Infrastructure service that saves ebook files and cover images to the local web root, returning web-relative paths suitable for serving from the web app."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__EpubReaderService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 7,
+        "typeCount": 0,
+        "purpose": "Service that locates EPUB files recorded in the database, parses a requested chapter, splits the chapter into sanitized content blocks, injects AI-action trigger blocks at thresholds, and returns a ReaderPageViewModel for consumption by the application."
+      },
+      {
+        "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Handlers__AuthenticationHeaderHandler.cs.json",
+        "role": "handler",
+        "layer": "frontend",
+        "methodCount": 3,
+        "typeCount": 1,
+        "purpose": "Delegating HTTP handler used in the Blazor/WebAssembly client to attach JWT Authorization headers to trusted requests and to transparently refresh expired tokens in a thread-safe way."
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Services__WasmEpubService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 3,
+        "typeCount": 0,
+        "purpose": "Client-side WASM EPUB reader and local EPUB metadata extractor used by the Web.Client project: performs HTTP retrieval of chapter content and local EPUB metadata extraction in the browser runtime."
+      },
+      {
+        "path": "NexusReader.Web.Client/Program.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Program.cs.json",
+        "role": "startup",
+        "layer": "frontend",
+        "methodCount": 15,
+        "typeCount": 5,
+        "purpose": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__KnowledgeService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 14,
+        "typeCount": 0,
+        "purpose": "Provides AI-driven knowledge extraction, semantic search, RAG retrieval and caching; integrates with DB (Postgres/EF), Qdrant (vector DB), Neo4j (graph), and LLM/chat/embedding clients to produce structured KnowledgePackets, grounded answers, and semantic search DTOs."
+      },
+      {
+        "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__NexusReader.Web.Client.csproj.json",
+        "role": "config",
+        "layer": "frontend",
+        "methodCount": 0,
+        "typeCount": 0,
+        "purpose": "Project file for the Blazor WebAssembly client project: declares SDK, target framework, build properties, NuGet package dependencies, and project references that link the client to application and shared UI projects."
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Services__WebPlatformService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "Web-specific implementation of IPlatformService for the Blazor/Browser client: exposes vibration helpers and a device-context provider using JS interop."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ISyncBroadcaster.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Messaging__ISyncBroadcaster.cs.json",
+        "role": "service",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "Defines an application-layer abstraction for broadcasting real-time sync events (reading progress and ingestion progress) to connected client devices so handlers in Application layer avoid a direct dependency on SignalR."
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Services__WasmKnowledgeService.cs.json",
+        "role": "integration-client",
+        "layer": "frontend",
+        "methodCount": 10,
+        "typeCount": 0,
+        "purpose": "WASM-side implementation of IKnowledgeService that forwards knowledge/AI related requests from the Blazor WebAssembly client to server HTTP endpoints and returns typed Result<T> responses."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IEpubMetadataExtractor.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Services__IEpubMetadataExtractor.cs.json",
+        "role": "service",
+        "layer": "application",
+        "methodCount": 1,
+        "typeCount": 0,
+        "purpose": "Defines an application-layer service abstraction for extracting metadata from an EPUB stream, returning a Result-wrapped LocalEpubMetadata."
+      },
+      {
+        "path": "NexusReader.Application/Constants/StorageKeys.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Constants__StorageKeys.cs.json",
+        "role": "config",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines application-wide string keys used for client/local storage (auth tokens and user metadata)."
+      },
+      {
+        "path": "NexusReader.Application/Constants/PlanConstants.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Constants__PlanConstants.cs.json",
+        "role": "config",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines application-wide default constants for Plan-related settings (name, token limit, activity label)."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Services/IEpubReader.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Services__IEpubReader.cs.json",
+        "role": "service",
+        "layer": "application",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Defines an application-level abstraction for reading and parsing EPUB content for a specific ebook and chapter, exposing a single async operation that returns a Result-wrapped ReaderPageViewModel."
+      },
+      {
+        "path": "NexusReader.Application/Common/AppJsonContext.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Common__AppJsonContext.cs.json",
+        "role": "config",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a System.Text.Json source-generation context that registers graph-related DTO types for ahead-of-time JSON (de)serialization with indented output."
+      },
+      {
+        "path": "NexusReader.Application/DependencyInjection.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DependencyInjection.cs.json",
+        "role": "service-registration",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 0,
+        "purpose": "Provides application-level DI registrations (Mapster mapping config and MediatR handler registration) and exposes the application assembly for composition/root usage."
+      },
+      {
+        "path": "NexusReader.Application/DTOs/AI/RelevantContext.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DTOs__AI__RelevantContext.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a small DTO that carries a piece of retrieved context (text, source id and confidence) used by AI/knowledge features."
+      },
+      {
+        "path": "NexusReader.Application/DTOs/AI/KnowledgePacket.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DTOs__AI__KnowledgePacket.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 5,
+        "purpose": "Defines DTO record types used to represent AI/knowledge extraction payloads (concepts, quizzes, knowledge units/links, and an optional graph/summary) for application-level serialization and transport."
+      },
+      {
+        "path": "NexusReader.Application/Queries/Quiz/QuizViewModels.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__Quiz__QuizViewModels.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 2,
+        "purpose": "Defines lightweight Data Transfer Objects (records) used by the Application layer to represent quizzes and quiz questions for queries and view models."
+      },
+      {
+        "path": "NexusReader.Application/Queries/Graph/GraphViewModels.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__Graph__GraphViewModels.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 3,
+        "purpose": "Defines simple DTO/view-model records for graph visualization: node, link, and a container holding collections of nodes and links used by application queries."
+      },
+      {
+        "path": "NexusReader.Application/Queries/Reader/LocalEpubMetadata.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__Reader__LocalEpubMetadata.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a simple data-transfer record that carries metadata extracted from a local EPUB file (title, author, cover image, description) for use by application query handlers."
+      },
+      {
+        "path": "NexusReader.Application/Security/Authorization/ProUserRequirement.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Security__Authorization__ProUserRequirement.cs.json",
+        "role": "unknown",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a marker authorization requirement representing users with an active Pro subscription or sufficient AI tokens for policy-based authorization checks."
+      },
+      {
+        "path": "NexusReader.Domain/Entities/Author.cs",
+        "artifactPath": "cache/summaries/NexusReader.Domain__Entities__Author.cs.json",
+        "role": "entity",
+        "layer": "domain",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Domain entity representing an Author in the NexusReader domain model; declares identity, display name and a navigation collection of related Ebook entities for ORM mapping."
+      },
+      {
+        "path": "NexusReader.Application/Queries/Reader/ViewModels.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__Reader__ViewModels.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 4,
+        "purpose": "Defines application-level view models for the reader UI, including a polymorphic ContentBlock hierarchy (text and AI-trigger blocks) and a ReaderPageViewModel used by reader queries."
+      },
+      {
+        "path": "NexusReader.Domain/Entities/Ebook.cs",
+        "artifactPath": "cache/summaries/NexusReader.Domain__Entities__Ebook.cs.json",
+        "role": "entity",
+        "layer": "domain",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines the domain entity Ebook with storage/ORM mapping, metadata, navigation properties (Author, NexusUser), and fields used for reading/progress and AI ingestion readiness."
+      },
+      {
+        "path": "NexusReader.Domain/Entities/KnowledgeUnit.cs",
+        "artifactPath": "cache/summaries/NexusReader.Domain__Entities__KnowledgeUnit.cs.json",
+        "role": "entity",
+        "layer": "domain",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines the domain entity KnowledgeUnit which models a piece of knowledge (content, type, provenance) and its relationships for persistence (EF Core) within the Domain project."
+      },
+      {
+        "path": "NexusReader.Domain/Entities/KnowledgeUnitLink.cs",
+        "artifactPath": "cache/summaries/NexusReader.Domain__Entities__KnowledgeUnitLink.cs.json",
+        "role": "entity",
+        "layer": "domain",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines the domain entity KnowledgeUnitLink which models a directed link between two KnowledgeUnit entities with metadata (relation type) and EF Core data annotations for persistence."
+      },
+      {
+        "path": "NexusReader.Domain/Entities/QuizResult.cs",
+        "artifactPath": "cache/summaries/NexusReader.Domain__Entities__QuizResult.cs.json",
+        "role": "entity",
+        "layer": "domain",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "Defines the domain entity that records a user's result for an AI-generated quiz, including metadata (user, tenant, topic), score, computed percentage, and completion timestamp."
+      },
+      {
+        "path": "NexusReader.Domain/Entities/SemanticKnowledgeCache.cs",
+        "artifactPath": "cache/summaries/NexusReader.Domain__Entities__SemanticKnowledgeCache.cs.json",
+        "role": "entity",
+        "layer": "domain",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a domain entity that caches semantic extraction results (JSON payload, original text, model/prompt metadata) and stores an optional vector embedding for semantic search."
+      },
+      {
+        "path": "NexusReader.Domain/Entities/NexusUser.cs",
+        "artifactPath": "cache/summaries/NexusReader.Domain__Entities__NexusUser.cs.json",
+        "role": "entity",
+        "layer": "domain",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Domain entity representing an application user, extending IdentityUser with tenancy, subscription, AI quota, reading state and navigation to related domain objects."
+      },
+      {
+        "path": "NexusReader.Domain/Enums/KnowledgeUnitType.cs",
+        "artifactPath": "cache/summaries/NexusReader.Domain__Enums__KnowledgeUnitType.cs.json",
+        "role": "entity",
+        "layer": "domain",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines the domain-level enumeration of different knowledge unit categories used across the NexusReader system."
+      },
+      {
+        "path": "NexusReader.Domain/Entities/SubscriptionPlan.cs",
+        "artifactPath": "cache/summaries/NexusReader.Domain__Entities__SubscriptionPlan.cs.json",
+        "role": "entity",
+        "layer": "domain",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines the domain entity SubscriptionPlan which models subscription tiers, pricing and AI token limits used by the application."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Configuration__StripeSettings.cs.json",
+        "role": "config",
+        "layer": "infrastructure",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines configuration settings for Stripe integration (product IDs) and exposes the configuration section name for binding."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Configuration/AiSettings.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Configuration__AiSettings.cs.json",
+        "role": "config",
+        "layer": "infrastructure",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a POCO that models AI/LLM configuration settings (API key, model names, token limits, retries, temperature) intended for binding from configuration (likely using the .NET Options pattern)."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Helpers/ContentHasher.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Helpers__ContentHasher.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "Utility for normalizing text content and producing a deterministic SHA-256 hex hash used by the infrastructure layer for content identity/lookup."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Helpers/JsonRepairHelper.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Helpers__JsonRepairHelper.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Provides a small infrastructure helper to repair/truncate malformed or truncated JSON text by pruning trailing garbage and auto-closing open strings/brackets/braces."
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__RealTime__SignalRSyncBroadcaster.cs.json",
+        "role": "integration-client",
+        "layer": "infrastructure",
+        "methodCount": 3,
+        "typeCount": 1,
+        "purpose": "Implements a SignalR-backed ISyncBroadcaster to push sync/progress updates (general progress and ingestion progress) to all connected devices of a user via HubContext."
+      },
+      {
+        "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__DependencyInjection.cs.json",
+        "role": "service-registration",
+        "layer": "infrastructure",
+        "methodCount": 2,
+        "typeCount": 2,
+        "purpose": "Registers and configures infrastructure dependencies: DB contexts, external clients (Qdrant, Neo4j), Hangfire, AI clients/resilience, app services, authorization policies, and related configuration for the NexusReader solution."
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__RealTime__SyncHub.cs.json",
+        "role": "endpoint",
+        "layer": "infrastructure",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "Defines a SignalR Hub (SyncHub) that handles real-time reading-progress updates and per-user connection grouping; it forwards progress updates into the application via MediatR."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__EpubMetadataExtractor.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 1,
+        "typeCount": 0,
+        "purpose": "Infrastructure service that reads an EPUB stream to extract title, author, description and cover image for pre-ingestion preview without persisting data."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/PromptRegistry.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__PromptRegistry.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Provides a centralized static registry of AI/system prompt templates used across the application for knowledge extraction, graph extraction, summarization/quizzes, and KM segmentation."
+      },
+      {
+        "path": "NexusReader.Maui/Platforms/Android/MainApplication.cs",
+        "artifactPath": "cache/summaries/NexusReader.Maui__Platforms__Android__MainApplication.cs.json",
+        "role": "program-entry",
+        "layer": "frontend",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "Android MAUI application entry that integrates with the Android runtime and creates the MAUI app instance for the NexusReader mobile app."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/FocusModeService.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__FocusModeService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 3,
+        "typeCount": 1,
+        "purpose": "Provides a small UI service that tracks a 'focus mode' flag, persists it to browser localStorage via IJSRuntime, and notifies consumers when the flag changes."
+      },
+      {
+        "path": "NexusReader.Maui/MauiProgram.cs",
+        "artifactPath": "cache/summaries/NexusReader.Maui__MauiProgram.cs.json",
+        "role": "startup",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/IFocusModeService.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__IFocusModeService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "Defines an abstraction for a UI focus mode service used by shared UI code to query, initialize, toggle, and observe focus-mode state."
+      },
+      {
+        "path": "NexusReader.Maui/Services/MauiStorageService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Maui__Services__MauiStorageService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 8,
+        "typeCount": 0,
+        "purpose": "Platform-specific MAUI implementation of INativeStorageService that provides synchronous-preference and secure-storage access with result-wrapping and exception-to-failure mapping."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/IQuizStateService.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__IQuizStateService.cs.json",
+        "role": "ui-store",
+        "layer": "frontend",
+        "methodCount": 10,
+        "typeCount": 1,
+        "purpose": "Defines the UI-facing quiz state service contract used by the shared UI layer to expose current quiz state, hydration status, events, and operations for requesting/updating quiz data."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/IReaderInteractionService.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__IReaderInteractionService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 8,
+        "typeCount": 1,
+        "purpose": "Defines a UI-shared interaction contract for the reader component: event declarations and async methods used by UI components to notify selection, scrolling, and highlighting actions."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/IKnowledgeGraphService.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__IKnowledgeGraphService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 10,
+        "typeCount": 1,
+        "purpose": "Defines the UI-shared contract for a knowledge-graph state/service used by UI clients (holds current graph, active node, loading state, and exposes events and mutating operations)."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/IReaderNavigationService.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__IReaderNavigationService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 11,
+        "typeCount": 1,
+        "purpose": "Defines the UI-shared navigation contract for the reader (current ebook/chapter state, navigation operations and an event) so different UI hosts (WASM, MAUI, server UI) can coordinate reader navigation/state."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/IdentityService.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__IdentityService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 7,
+        "typeCount": 1,
+        "purpose": "UI-side identity/auth helper for the shared UI layer: performs register/login/logout, manages tokens in native storage, fetches/caches the user profile, refreshes tokens and notifies the authentication state provider."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/ISyncService.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__ISyncService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "Defines a shared UI-facing synchronization service contract for initializing sync, updating reading progress for ebooks, receiving progress events, and disposing the sync component."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/IThemeService.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__IThemeService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 3,
+        "typeCount": 1,
+        "purpose": "Defines a UI theme service contract used by UI projects to read current theme mode, toggle it, and notify subscribers when the theme changes."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/KnowledgeGraphService.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__KnowledgeGraphService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "Client-side shared UI service that holds and broadcasts knowledge-graph state (current graph, active node, loading) for consumers via async events."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/QuizStateService.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__QuizStateService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "Provides an in-memory UI/shared service that holds the current quiz state, exposes events for consumers to request and react to quiz updates, and manages hydration/new-quiz flags for UI components."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/ReaderInteractionService.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__ReaderInteractionService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 4,
+        "typeCount": 2,
+        "purpose": "A small UI-shared service that mediates reader-related interactions (node selection, scrolling, highlighting, and text selection) by exposing async events/delegates other components can subscribe to and by providing methods that invoke those events."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/NexusAuthenticationStateProvider.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__NexusAuthenticationStateProvider.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 6,
+        "typeCount": 1,
+        "purpose": "Blazor AuthenticationStateProvider implementation that derives user identity from a local secure storage-backed token/email/tenant/roles cache, supports cached state, and notifies consumers on changes."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/ReaderNavigationService.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__ReaderNavigationService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 8,
+        "typeCount": 1,
+        "purpose": "Provides navigation and reader state (current ebook, chapter index, chapter metadata) for the UI; exposes programmatic navigation, metadata updates, and an event-based notification surface for subscribers."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/ThemeService.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__ThemeService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Provides a small UI service that holds theme state (light/dark) and notifies subscribers when the theme is toggled."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/SyncService.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__SyncService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 5,
+        "typeCount": 1,
+        "purpose": "Client-side service that manages SignalR-based sync of reading progress: it retrieves auth token, establishes a HubConnection, debounces progress updates and sends them to the server, and exposes an event for incoming progress notifications."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/WebStorageService.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__WebStorageService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 9,
+        "typeCount": 1,
+        "purpose": "A UI-shared service that implements INativeStorageService by using Blazor JS interop to read/write browser localStorage, returning FluentResults for success/failure."
+      },
+      {
+        "path": "NexusReader.Application/NexusReader.Application.csproj",
+        "artifactPath": "cache/summaries/NexusReader.Application__NexusReader.Application.csproj.json",
+        "role": "config",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 0,
+        "purpose": "Project file for the NexusReader.Application .NET project: declares project-to-project references, NuGet package dependencies, and build properties (target framework, nullable, implicit usings, runtime config generation)."
+      },
+      {
+        "path": "NexusReader.Web/Services/NativeStorageService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web__Services__NativeStorageService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 9,
+        "typeCount": 1,
+        "purpose": "Server-side implementation of INativeStorageService that wraps browser localStorage access via IJSRuntime (JS interop), providing safe/nullable results and handling cases where JS interop may not be available (e.g. prerendering)."
+      },
+      {
+        "path": "NexusReader.Domain/NexusReader.Domain.csproj",
+        "artifactPath": "cache/summaries/NexusReader.Domain__NexusReader.Domain.csproj.json",
+        "role": "config",
+        "layer": "domain",
+        "methodCount": 0,
+        "typeCount": 0,
+        "purpose": "Project file for the NexusReader.Domain assembly: declares build settings (TargetFramework net10.0), compiler behaviors (implicit usings, nullable), runtime configuration generation, and package dependencies used by the Domain project."
+      },
+      {
+        "path": "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure.Mobile__NexusReader.Infrastructure.Mobile.csproj.json",
+        "role": "config",
+        "layer": "infrastructure",
+        "methodCount": 0,
+        "typeCount": 0,
+        "purpose": "MSBuild project file for the NexusReader mobile app; defines target platforms, MAUI usage, package and project dependencies, and build-time settings for the mobile application."
+      },
+      {
+        "path": "NexusReader.Web/Services/ServerIdentityService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web__Services__ServerIdentityService.cs.json",
+        "role": "service",
+        "layer": "application",
+        "methodCount": 6,
+        "typeCount": 0,
+        "purpose": "Server-side implementation of an identity adapter for the Web project: validates credentials, registers users, exposes profile retrieval and lightweight token/ logout stubs suitable for Blazor Server constraints."
+      },
+      {
+        "path": "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__NexusReader.Infrastructure.csproj.json",
+        "role": "unknown",
+        "layer": "infrastructure",
+        "methodCount": 0,
+        "typeCount": 0,
+        "purpose": "MSBuild project file that defines the Infrastructure project: references Application and Data projects, declares framework and a set of NuGet packages required for runtime concerns like AI, persistence, background jobs, resilience, graph DB, vector DB, and payments."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Pages/Account/Register.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Pages__Account__Register.razor.json",
+        "role": "ui-page",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Blazor Register page for creating a new user account: renders registration form, validates input, calls identity service to register and log in, and triggers cookie-based sign-in via a hidden form + JS helper."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260428184727_InitialPostgres.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260428184727_InitialPostgres.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 2,
+        "typeCount": 4,
+        "purpose": "EF Core migration that creates the initial PostgreSQL schema (identity tables, Ebooks, and a semantic knowledge cache) and corresponding indexes/foreign keys for the NexusReader.Data project."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260428185239_IncreaseHashLength.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "EF Core migration that changes column definitions: increases the ContentHash length from 64 to 128 and converts several timestamp columns from timestamptz to timestamp without time zone (and provides the reverse in Down)."
+      },
+      {
+        "path": "NexusReader.Web/Program.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web__Program.cs.json",
+        "role": "startup",
+        "layer": "application",
+        "methodCount": 22,
+        "typeCount": 4,
+        "purpose": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260428184727_InitialPostgres.Designer.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260428184727_InitialPostgres.Designer.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 3,
+        "purpose": "EF Core auto-generated migration designer that describes the target EF Core model for the InitialPostgres migration (table/column/index/relationship configuration for Postgres)."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260429080302_AddQuizResults.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260429080302_AddQuizResults.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "EF Core migration that adds a QuizResults table with columns, primary key, foreign key to AspNetUsers, and an index; and provides a Down method to drop the table."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.Designer.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260428185239_IncreaseHashLength.Designer.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 3,
+        "purpose": "EF Core migration designer for 'IncreaseHashLength' that defines the target model snapshot used by migrations (table schemas, columns, keys, indexes, relationships)."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260503175906_FinalNormalizedSubscriptionArchitecture.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260503175906_FinalNormalizedSubscriptionArchitecture.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 2,
+        "typeCount": 4,
+        "purpose": "EF Core migration that updates DB schema for a normalized subscription and knowledge-unit architecture: alters columns, adds tenant fields and vectors, creates KnowledgeUnits/KnowledgeUnitLinks/SubscriptionPlans tables, seeds subscription plans, and adds indexes and foreign keys."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260429080302_AddQuizResults.Designer.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260429080302_AddQuizResults.Designer.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 6,
+        "purpose": "EF Core migration designer that describes the target EF model for the AddQuizResults migration (database schema snapshot used by EF migrations)."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "EF Core migration that adds an IsUnlimitedTokens boolean column to the SubscriptionPlans table and updates seed data for existing subscription plan rows; provides a Down migration to revert these schema and data changes."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260503175906_FinalNormalizedSubscriptionArchitecture.Designer.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260503175906_FinalNormalizedSubscriptionArchitecture.Designer.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 13,
+        "purpose": "EF Core migration designer that builds the target EF model for the FinalNormalizedSubscriptionArchitecture migration; it's an auto-generated file that describes entity shapes, indexes, relationships, extensions and seed data for the AppDbContext."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510151022_NormalizeAuthor.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260510151022_NormalizeAuthor.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "An EF Core migration that normalizes the Author on Ebooks by removing the string column and introducing an Authors table with a foreign key relation."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260510161155_AddEbookProgressAndChapter.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "EF Core migration that modifies the Ebooks table to add a nullable LastChapter column and a non-null Progress column with default 0.0; provides Up and Down schema change paths."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510151022_NormalizeAuthor.Designer.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260510151022_NormalizeAuthor.Designer.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "EF Core migration designer file that describes the target EF model for the NormalizeAuthor migration (DB schema, relationships, indexes, and seed data)."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens.Designer.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 7,
+        "purpose": "EF Core migration designer that reconstructs the target EF model for the migration \"20260506184227_UpdateSubscriptionPlanIsUnlimitedTokens\"; it configures entities, relationships, indexes and seeds SubscriptionPlan data."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510171941_AddEbookLastChapterIndex.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260510171941_AddEbookLastChapterIndex.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "EF Core migration that adds a new non-nullable integer column LastChapterIndex (default 0) to the Ebooks table and provides the reverse operation."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510161155_AddEbookProgressAndChapter.Designer.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260510161155_AddEbookProgressAndChapter.Designer.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 8,
+        "purpose": "EF Core auto-generated migration designer that builds the target EF Core model for the migration AddEbookProgressAndChapter; defines tables, columns, indexes, relationships, extension usage and seed data required by this migration."
+      },
+      {
+        "path": "NexusReader.Data/Persistence/AppDbContextFactory.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Persistence__AppDbContextFactory.cs.json",
+        "role": "bootstrap",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Design-time factory that constructs AppDbContext for EF Core tooling by locating configuration (preferably from the Web project) and configuring a Postgres connection with pgvector support."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260510171941_AddEbookLastChapterIndex.Designer.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260510171941_AddEbookLastChapterIndex.Designer.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 8,
+        "purpose": "EF Core migration designer for the AddEbookLastChapterIndex migration; declares the target EF model (entities, properties, indexes, relations, and seed data) used to generate the database schema for this migration."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/AppDbContextModelSnapshot.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__AppDbContextModelSnapshot.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 9,
+        "purpose": "EF Core Migrations ModelSnapshot that records the current EF model for AppDbContext (auto-generated); used by migrations to compare model changes, configure Postgres vector extension and seed initial subscription plans."
+      },
+      {
+        "path": "NexusReader.Data/Persistence/AppDbContext.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Persistence__AppDbContext.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 10,
+        "typeCount": 0,
+        "purpose": "EF Core DbContext for NexusReader that configures entity mappings, indexes, relationships, Postgres-specific vector settings, and seeds deterministic subscription plans used by the application."
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513181743_AddEbookReadyFlag.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Persistence__Migrations__20260513181743_AddEbookReadyFlag.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "EF Core migration that adds a boolean IsReadyForReading column to the Ebooks table (and removes it on rollback)."
+      },
+      {
+        "path": "NexusReader.Data/Persistence/DbInitializer.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Persistence__DbInitializer.cs.json",
+        "role": "startup",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Provides a one-time database seeding utility that creates default subscription plans, roles, an admin user, and sample domain data (author, ebook) when invoked (typically at app startup)."
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513183726_FixKnowledgeUnitEbookId.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Persistence__Migrations__20260513183726_FixKnowledgeUnitEbookId.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "EF Core migration that replaces a string SourceId on KnowledgeUnits with a Guid EbookId, adds an index and foreign key to Ebooks (cascade delete); provides Up and Down schema transitions."
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513185108_MakeKnowledgeUnitEbookIdNullable.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Persistence__Migrations__20260513185108_MakeKnowledgeUnitEbookIdNullable.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "EF Core code-first migration that changes the KnowledgeUnits.EbookId column to be nullable (and provides a Down method to revert the change)."
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513181743_AddEbookReadyFlag.Designer.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Persistence__Migrations__20260513181743_AddEbookReadyFlag.Designer.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 9,
+        "purpose": "EF Core migration designer that defines the target EF model for the migration AddEbookReadyFlag; it describes schema (tables, columns, keys, indexes, relationships) and includes seed data for subscription plans."
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Persistence__Migrations__20260514184243_AddDescriptionToEbook.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "EF Core migration that adds a nullable text Description column to the Ebooks table and provides a down migration to remove it."
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513185108_MakeKnowledgeUnitEbookIdNullable.Designer.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Persistence__Migrations__20260513185108_MakeKnowledgeUnitEbookIdNullable.Designer.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "EF Core migration designer partial class that reconstructs the target EF model used by the migration 20260513185108_MakeKnowledgeUnitEbookIdNullable; it declares entity schemas, relationships, indices and seed data for the application's database model."
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260513183726_FixKnowledgeUnitEbookId.Designer.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Persistence__Migrations__20260513183726_FixKnowledgeUnitEbookId.Designer.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 9,
+        "purpose": "EF Core migration designer snapshot that defines the target EF Core model for the migration 'FixKnowledgeUnitEbookId' — maps tables, columns, indexes, relationships, Postgres vector extension, and seeds SubscriptionPlan data."
+      },
+      {
+        "path": "NexusReader.Maui/App.xaml.cs",
+        "artifactPath": "cache/summaries/NexusReader.Maui__App.xaml.cs.json",
+        "role": "program-entry",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "MAUI application entry class: initializes XAML components and sets the app's MainPage at startup."
+      },
+      {
+        "path": "NexusReader.Maui/MainPage.xaml.cs",
+        "artifactPath": "cache/summaries/NexusReader.Maui__MainPage.xaml.cs.json",
+        "role": "ui-page",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "MAUI code-behind for the app's main page; defines the MainPage partial class and initializes XAML-backed UI components."
+      },
+      {
+        "path": "NexusReader.Maui/Platforms/Android/MainActivity.cs",
+        "artifactPath": "cache/summaries/NexusReader.Maui__Platforms__Android__MainActivity.cs.json",
+        "role": "program-entry",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Defines the Android MainActivity for the MAUI app; acts as the Android entry point (MainLauncher) and logs basic lifecycle events."
+      },
+      {
+        "path": "NexusReader.Maui/_Imports.razor",
+        "artifactPath": "cache/summaries/NexusReader.Maui___Imports.razor.json",
+        "role": "ui-component",
+        "layer": "frontend",
+        "methodCount": 0,
+        "typeCount": 0,
+        "purpose": "Provides global @using directives for Razor components in the NexusReader.Maui project so shared namespaces are available to all .razor files."
+      },
+      {
+        "path": "NexusReader.Data/Persistence/Migrations/20260514184243_AddDescriptionToEbook.Designer.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Persistence__Migrations__20260514184243_AddDescriptionToEbook.Designer.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 9,
+        "purpose": "Auto-generated EF Core migration designer that describes the target EF model for the migration 'AddDescriptionToEbook' (maps entities, indexes, relationships, Postgres vector extension and seeds subscription plans)."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Layout/ReconnectModal.razor.js",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Layout__ReconnectModal.razor.js.json",
+        "role": "ui-component",
+        "layer": "frontend",
+        "methodCount": 4,
+        "typeCount": 0,
+        "purpose": "Client-side helper for a Blazor reconnect modal: registers UI event handlers, orchestrates reconnect/resume attempts, and falls back to page reload when reconnection fails."
+      },
+      {
+        "path": "NexusReader.Data/NexusReader.Data.csproj",
+        "artifactPath": "cache/summaries/NexusReader.Data__NexusReader.Data.csproj.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 0,
+        "typeCount": 0,
+        "purpose": "Defines the Data project build configuration and NuGet/Project dependencies for the NexusReader data layer (Entity Framework Core persistence, DB providers, and vector support)."
+      },
+      {
+        "path": "NexusReader.UI.Shared/_Imports.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared___Imports.razor.json",
+        "role": "ui-component",
+        "layer": "frontend",
+        "methodCount": 0,
+        "typeCount": 0,
+        "purpose": "Razor imports file that centralizes using directives for the NexusReader UI shared component library so individual .razor files in this folder and subfolders can omit repetitive namespace imports."
+      },
+      {
+        "path": "NexusReader.Maui/NexusReader.Maui.csproj",
+        "artifactPath": "cache/summaries/NexusReader.Maui__NexusReader.Maui.csproj.json",
+        "role": "startup",
+        "layer": "frontend",
+        "methodCount": 0,
+        "typeCount": 0,
+        "purpose": "Project file for the MAUI mobile client of Nexus E-Reader; defines target frameworks, platform support, app metadata, MAUI features, package dependencies, and project references that shape the mobile runtime and build outputs."
+      },
+      {
+        "path": "NexusReader.Maui/Main.razor",
+        "artifactPath": "cache/summaries/NexusReader.Maui__Main.razor.json",
+        "role": "ui-component",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 0,
+        "purpose": "Razor root routing component for the MAUI app: defines app Router, handles found/not-found route flows, enforces authorization with a redirect-to-login fallback, and applies the main layout and focus-on-navigate behavior."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Services__KnowledgeCoordinator.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 12,
+        "typeCount": 1,
+        "purpose": "Coordinator service in the UI.Shared layer that orchestrates knowledge graph generation, updates, quiz requests, and UI interactions (scroll/highlight) by delegating to platform, graph, quiz and knowledge services and exposing an OnGraphUpdated event."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Atoms/NexusButton.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Components__Atoms__NexusButton.razor.json",
+        "role": "ui-component",
+        "layer": "frontend",
+        "methodCount": 5,
+        "typeCount": 0,
+        "purpose": "A small reusable Blazor button component that renders a <button>, exposes a ChildContent slot, supports disabling, captures unmatched attributes, and forwards click events to a consumer-provided EventCallback."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Atoms/NexusSearchBox.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Components__Atoms__NexusSearchBox.razor.json",
+        "role": "ui-component",
+        "layer": "frontend",
+        "methodCount": 3,
+        "typeCount": 1,
+        "purpose": "Razor UI search box component that binds user input, shows a clear button, and emits an OnSearch event when Enter is pressed."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Atoms/NexusIcon.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Components__Atoms__NexusIcon.razor.json",
+        "role": "ui-component",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Razor UI component that renders an inline SVG icon based on a Name parameter, exposing size, CSS class and passthrough attributes; provides a set of predefined icon shapes and a fallback circle."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Atoms/NexusTypography.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Components__Atoms__NexusTypography.razor.json",
+        "role": "ui-component",
+        "layer": "frontend",
+        "methodCount": 2,
+        "typeCount": 2,
+        "purpose": "Razor UI atom that renders typed typography: a <div> wrapper that applies a CSS class based on a Variant and forwards any additional attributes and child content."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Components__Molecules__AiAssistantBubble.razor.json",
+        "role": "ui-component",
+        "layer": "frontend",
+        "methodCount": 5,
+        "typeCount": 0,
+        "purpose": "Razor UI component that displays an AI assistant bubble, requests summaries/quizzes from a KnowledgeCoordinator, streams the summary word-by-word, supports user actions (more/quiz), and cancels/cleans up in-flight streams."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Molecules/GroundednessBadge.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Components__Molecules__GroundednessBadge.razor.json",
+        "role": "ui-component",
+        "layer": "frontend",
+        "methodCount": 6,
+        "typeCount": 1,
+        "purpose": "Blazor UI component that displays a \"groundedness\" badge for an Answer given a Context by invoking an application VerifyGroundednessCommand and showing score, icon and status CSS."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Components__Molecules__SelectionAiPanel.razor.json",
+        "role": "ui-component",
+        "layer": "frontend",
+        "methodCount": 7,
+        "typeCount": 2,
+        "purpose": "Blazor UI component that shows an AI assistant bubble for a user text selection; it requests summaries/quizzes from a KnowledgeCoordinator and notifies the host when closed."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Components/Molecules/IntelligenceToolbar.razor",
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+        "purpose": "A Blazor Razor page that displays a generic error screen and exposes the request identifier (from Activity or HttpContext) for troubleshooting."
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+        },
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+        },
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+        },
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+        },
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+          "filePath": "NexusReader.UI.Shared/Layout/ReconnectModal.razor.js",
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+        },
+        {
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+        },
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+          "filePath": "NexusReader.Maui/Main.razor",
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+        },
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+        },
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+        },
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+          "filePath": "NexusReader.Maui/Main.razor",
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+        },
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+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
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+        },
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+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
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+          "visibility": "secondary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+          "includedInFlowIds": []
+        },
+        {
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+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
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+          "visibility": "detail-only",
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+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "handlenodeselected_repository-read_51_1",
+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
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+          "visibility": "secondary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because secondary-visible action repository-read should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "handlenodeselected_branch_52_2",
+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+          "methodName": "HandleNodeSelected",
+          "actionKind": "branch",
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+          "visibility": "secondary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_branch_52_52",
+          "attachedFromNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_repository_read_51_51",
+          "attachedEdgeId": "edge_flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_repository_read_51_51_flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_branch_52_52_evaluates-condition_52",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "branch_52",
+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+          "methodName": "HandleNodeSelected",
+          "actionKind": "branch",
+          "line": 52,
+          "visibility": "detail-only",
+          "promoted": true,
+          "promotionReason": "Promoted because action branch affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+          "attachedFromNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_branch_52_52",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "handlenodeselected_repository-read_55_3",
+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
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+          "visibility": "secondary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because secondary-visible action repository-read should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_repository_read_55_55",
+          "attachedFromNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_branch_52_52",
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+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "loop_56",
+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+          "methodName": "HandleNodeSelected",
+          "actionKind": "loop",
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+          "visibility": "detail-only",
+          "promoted": true,
+          "promotionReason": "Promoted because action loop affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+          "attachedEdgeId": "edge_flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_repository_read_55_55_flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_loop_56_56_loops-to_56",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "handlenodeselected_loop_56_4",
+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
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+          "visibility": "primary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because primary-visible action loop should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_loop_56_56",
+          "attachedFromNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_loop_56_56",
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+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "handlenodeselected_repository-read_59_5",
+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
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+          "visibility": "secondary-visible",
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+          "promotionReason": "Promoted because secondary-visible action repository-read should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_repository_read_59_59",
+          "attachedFromNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_loop_56_56",
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+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "handlenodeselected_branch_60_6",
+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+          "methodName": "HandleNodeSelected",
+          "actionKind": "branch",
+          "line": 60,
+          "visibility": "secondary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_branch_60_60",
+          "attachedFromNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_repository_read_59_59",
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+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "handlenodeselected_branch_69_7",
+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+          "methodName": "HandleNodeSelected",
+          "actionKind": "branch",
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+          "visibility": "secondary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_branch_69_69",
+          "attachedFromNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_branch_60_60",
+          "attachedEdgeId": "edge_flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_branch_60_60_flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_handlenodeselected_branch_69_69_evaluates-condition_69",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "eventual-action_69",
+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+          "methodName": "HandleNodeSelected",
+          "actionKind": "mapping",
+          "line": 69,
+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "guard-clause_78",
+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
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+          "actionKind": "guard-clause",
+          "line": 78,
+          "visibility": "detail-only",
+          "promoted": true,
+          "promotionReason": "Promoted because action guard-clause affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_processfullpageasync_guard_clause_78_78",
+          "attachedFromNodeId": "flow_method_nexusreader_ui_shared_services_knowledgecoordinator_cs_processfullpageasync_76",
+          "attachedEdgeId": "edge_flow_method_nexusreader_ui_shared_services_knowledgecoordinator_cs_processfullpageasync_76_flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_processfullpageasync_guard_clause_78_78_evaluates-condition_78",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "processfullpageasync_guard-clause_78_0",
+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+          "methodName": "ProcessFullPageAsync",
+          "actionKind": "guard-clause",
+          "line": 78,
+          "visibility": "primary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because primary-visible action guard-clause should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_processfullpageasync_guard_clause_78_78",
+          "attachedFromNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_processfullpageasync_guard_clause_78_78",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "log_80",
+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+          "methodName": "ProcessFullPageAsync",
+          "actionKind": "log",
+          "line": 80,
+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "state-update_82",
+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+          "methodName": "ProcessFullPageAsync",
+          "actionKind": "mapping",
+          "line": 82,
+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+        },
+        {
+          "actionId": "try-catch_85",
+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+          "methodName": "ProcessFullPageAsync",
+          "actionKind": "mapping",
+          "line": 85,
+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "external-call_87",
+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+          "methodName": "ProcessFullPageAsync",
+          "actionKind": "external-call",
+          "line": 87,
+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+        },
+        {
+          "actionId": "processfullpageasync_branch_88_1",
+          "filePath": "NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs",
+          "methodName": "ProcessFullPageAsync",
+          "actionKind": "branch",
+          "line": 88,
+          "visibility": "secondary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_processfullpageasync_branch_88_88",
+          "attachedFromNodeId": "flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_processfullpageasync_guard_clause_78_78",
+          "attachedEdgeId": "edge_flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_processfullpageasync_guard_clause_78_78_flow_action_nexusreader_ui_shared_services_knowledgecoordinator_cs_processfullpageasync_branch_88_88_evaluates-condition_88",
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+          "filePath": "NexusReader.UI.Shared/Components/Molecules/KnowledgeCheck.razor",
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+        {
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+        },
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+          "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
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+          "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
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+          "visibility": "detail-only",
+          "promoted": true,
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+        },
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+        },
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+        },
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+          "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
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+          "attachedFromNodeId": "flow_action_nexusreader_ui_shared_components_organisms_bookingestionmodal_razor_handlefileselected_branch_176_176",
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+          "includedInFlowIds": []
+        },
+        {
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+          "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
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+          "visibility": "secondary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because secondary-visible action repository-read should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+          "attachedFromNodeId": "flow_action_nexusreader_ui_shared_components_organisms_bookingestionmodal_razor_handlefileselected_fallback_181_181",
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+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "error-handling_186",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
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+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+        },
+        {
+          "actionId": "handlefileselected_log_188_6",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
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+          "visibility": "secondary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because secondary-visible action log should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_ui_shared_components_organisms_bookingestionmodal_razor_handlefileselected_log_188_188",
+          "attachedFromNodeId": "flow_action_nexusreader_ui_shared_components_organisms_bookingestionmodal_razor_handlefileselected_repository_read_183_183",
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+          "includedInFlowIds": []
+        },
+        {
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+          "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
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+        },
+        {
+          "actionId": "savetolibrary_guard-clause_200_0",
+          "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
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+          "visibility": "primary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because primary-visible action guard-clause should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+          "includedInFlowIds": []
+        },
+        {
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+          "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
+          "methodName": "SaveToLibrary",
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+          "promotionReason": "Promoted because action guard-clause affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+        },
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+        {
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+        {
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+          "filePath": "NexusReader.UI.Shared/Components/Organisms/BookIngestionModal.razor",
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+}
\ No newline at end of file
diff --git a/src/.documentation/machine/phase-inputs/domains__application-layer.phase-inputs.json b/src/.documentation/machine/phase-inputs/domains__application-layer.phase-inputs.json
new file mode 100644
index 0000000..9b60304
--- /dev/null
+++ b/src/.documentation/machine/phase-inputs/domains__application-layer.phase-inputs.json
@@ -0,0 +1,9506 @@
+{
+  "generatedAt": "2026-05-22T06:39:20.211Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "application-layer.md",
+    "title": "Application Layer: Commands, Queries and DTOs",
+    "kind": "domain-model",
+    "scopeDescription": "Describe the Application project patterns: command and query types, handlers, DTOs, mapping configuration, and any messaging/mediator abstraction. Explain major handlers such as ebook ingestion, AI verification, semantic search, reader page queries, and user/profile queries.",
+    "relativeOutputPath": "domains/application-layer.md",
+    "publicationTier": "secondary",
+    "collectionId": "domains:domains",
+    "collectionKind": "domains"
+  },
+  "inputs": {
+    "summaries": [
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ICommand.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Messaging__ICommand.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 2,
+        "purpose": "Defines application-level command abstractions used with MediatR and FluentResults to represent operations that return FluentResults (optionally with a typed payload)."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/ICommandHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Messaging__ICommandHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 2,
+        "purpose": "Declares application-level command handler abstractions that adapt MediatR IRequestHandler to return FluentResults.Result, standardizing command handling signatures across the Application layer."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/IQuery.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Messaging__IQuery.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a marker interface for application-layer read/query operations that use MediatR and return a FluentResults.Result-wrapped response."
+      },
+      {
+        "path": "NexusReader.Application/Abstractions/Messaging/IQueryHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Abstractions__Messaging__IQueryHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Defines an application-level abstraction for MediatR query handlers that return a FluentResults Result<TResponse>."
+      },
+      {
+        "path": "NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Commands__AI__VerifyGroundednessCommand.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "Defines a MediatR command (VerifyGroundednessCommand) and its handler which delegates groundedness verification to an IKnowledgeService implementation."
+      },
+      {
+        "path": "NexusReader.Application/Commands/Library/IngestEbookCommand.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Commands__Library__IngestEbookCommand.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a CQRS command record used to ingest a new ebook into the library, carrying payload (metadata, content bytes, ownership and tenant info) for application-side handlers."
+      },
+      {
+        "path": "NexusReader.Application/Commands/Library/IngestEbookCommandHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Commands__Library__IngestEbookCommandHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 0,
+        "purpose": "Handles ingestion of an EPUB into application storage and persistence: saves files via storage service, ensures/creates author, creates Ebook entity, and persists it returning the new Ebook Id or a failure result."
+      },
+      {
+        "path": "NexusReader.Application/Commands/Library/IngestEbookRequest.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Commands__Library__IngestEbookRequest.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a command/request DTO used to ingest an ebook into the library (carries metadata and base64-encoded payload)."
+      },
+      {
+        "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommand.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Commands__Quiz__SubmitAnswerCommand.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a lightweight CQRS command that carries the user's selected answer index and the correct index for quiz answer submission."
+      },
+      {
+        "path": "NexusReader.Application/Commands/Quiz/SubmitAnswerCommandHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Commands__Quiz__SubmitAnswerCommandHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 0,
+        "purpose": "Command handler that processes a quiz answer submission: vibrates the device on correct answers and returns success/failure results."
+      },
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Commands__Sync__UpdateReadingProgressCommand.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a MediatR command DTO used to update/sync a user's reading progress for an ebook across the application."
+      },
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommandHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Commands__Sync__UpdateReadingProgressCommandHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Handles UpdateReadingProgressCommand: persists a user's reading position to the database and broadcasts the update to other connected devices."
+      },
+      {
+        "path": "NexusReader.Application/DTOs/AI/GroundedResponseDto.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DTOs__AI__GroundedResponseDto.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 2,
+        "purpose": "Defines simple DTOs used to return a grounded AI response (answer plus provenance/citations) from application services."
+      },
+      {
+        "path": "NexusReader.Application/DTOs/AI/SemanticSearchResultDto.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DTOs__AI__SemanticSearchResultDto.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a data transfer object representing a semantic search hit returned by AI/semantic search operations, carrying content identifiers, a snippet, relevance score and optional metadata."
+      },
+      {
+        "path": "NexusReader.Application/DTOs/User/AuthorDto.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DTOs__User__AuthorDto.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a simple data transfer object representing an author (Id and Name) used by the Application layer to pass user/author data between boundaries."
+      },
+      {
+        "path": "NexusReader.Application/DTOs/User/SubscriptionPlanDto.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DTOs__User__SubscriptionPlanDto.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a simple immutable DTO representing a subscription plan used across the application layer (billing/AI quota)."
+      },
+      {
+        "path": "NexusReader.Application/DTOs/User/UserProfileDto.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DTOs__User__UserProfileDto.cs.json",
+        "role": "dto",
+        "layer": "application",
+        "methodCount": 3,
+        "typeCount": 2,
+        "purpose": "Defines application-level DTOs representing a user's profile and their last-read book, including UI helper properties that project domain values and defaults for client consumption."
+      },
+      {
+        "path": "NexusReader.Application/Mappings/MappingConfig.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Mappings__MappingConfig.cs.json",
+        "role": "service-registration",
+        "layer": "application",
+        "methodCount": 1,
+        "typeCount": 0,
+        "purpose": "Defines and registers Mapster mapping configuration and the Mapster IMapper into the application's DI container."
+      },
+      {
+        "path": "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQuery.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__Graph__GetKnowledgeGraphQuery.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Defines a CQRS query record that carries input for extracting a knowledge graph from text within a tenant and optional ebook scope."
+      },
+      {
+        "path": "NexusReader.Application/Queries/Graph/GetKnowledgeGraphQueryHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__Graph__GetKnowledgeGraphQueryHandler.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 0,
+        "purpose": "Handles GetKnowledgeGraphQuery by delegating to an IKnowledgeService to produce a GraphDataDto (returns empty graph for empty input or on null results)."
+      },
+      {
+        "path": "NexusReader.Application/Queries/Library/AskLibraryQuestionQuery.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__Library__AskLibraryQuestionQuery.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "Defines a MediatR query (AskLibraryQuestionQuery) and its handler which validates the request and delegates question answering to an IKnowledgeService, returning a grounded AI response."
+      },
+      {
+        "path": "NexusReader.Application/Queries/Library/GetMyEbooksQuery.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__Library__GetMyEbooksQuery.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "MediatR query + handler that reads the current user's ebooks from the EF Core AppDbContext, projects them to LastReadBookDto and returns a successful FluentResults Result with the list."
+      },
+      {
+        "path": "NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__Library__SearchLibrarySemanticallyQuery.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 3,
+        "typeCount": 2,
+        "purpose": "Implements a MediatR query and handler that semantically searches a tenant-scoped semantic cache using an embedding generated for the query text (with retry) and returns mapped DTO results."
+      },
+      {
+        "path": "NexusReader.Application/Queries/Reader/GetReaderPageQuery.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Queries__Reader__GetReaderPageQuery.cs.json",
+        "role": "handler",
+        "layer": "application",
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+}
\ No newline at end of file
diff --git a/src/.documentation/machine/phase-inputs/domains__data-and-persistence.phase-inputs.json b/src/.documentation/machine/phase-inputs/domains__data-and-persistence.phase-inputs.json
new file mode 100644
index 0000000..6534a81
--- /dev/null
+++ b/src/.documentation/machine/phase-inputs/domains__data-and-persistence.phase-inputs.json
@@ -0,0 +1,10957 @@
+{
+  "generatedAt": "2026-05-22T06:51:55.327Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "data-and-persistence.md",
+    "title": "Data Layer, EF Core and Repositories",
+    "kind": "infrastructure",
+    "scopeDescription": "How EF Core is configured and used: AppDbContext, migrations, DbContextFactory, DbInitializer, and repository implementations (EbookRepository). Describe schema evolution (key migrations) and guidance for running migrations and seeding.",
+    "relativeOutputPath": "domains/data-and-persistence.md",
+    "publicationTier": "secondary",
+    "collectionId": "domains:domains",
+    "collectionKind": "domains"
+  },
+  "inputs": {
+    "summaries": [
+      {
+        "path": "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Persistence__EbookRepository.cs.json",
+        "role": "repository",
+        "layer": "infrastructure",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "EF Core repository implementing IEbookRepository; provides data access for Author and Ebook entities using an AppDbContext, with provider-aware search logic and basic persistence operations."
+      },
+      {
+        "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Handlers__AuthenticationHeaderHandler.cs.json",
+        "role": "handler",
+        "layer": "frontend",
+        "methodCount": 3,
+        "typeCount": 1,
+        "purpose": "Delegating HTTP handler used in the Blazor/WebAssembly client to attach JWT Authorization headers to trusted requests and to transparently refresh expired tokens in a thread-safe way."
+      },
+      {
+        "path": "NexusReader.Web.Client/Program.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Program.cs.json",
+        "role": "startup",
+        "layer": "frontend",
+        "methodCount": 15,
+        "typeCount": 5,
+        "purpose": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser."
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Services__WasmEpubService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 3,
+        "typeCount": 0,
+        "purpose": "Client-side WASM EPUB reader and local EPUB metadata extractor used by the Web.Client project: performs HTTP retrieval of chapter content and local EPUB metadata extraction in the browser runtime."
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Services__WasmKnowledgeService.cs.json",
+        "role": "integration-client",
+        "layer": "frontend",
+        "methodCount": 10,
+        "typeCount": 0,
+        "purpose": "WASM-side implementation of IKnowledgeService that forwards knowledge/AI related requests from the Blazor WebAssembly client to server HTTP endpoints and returns typed Result<T> responses."
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Services__WebPlatformService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "Web-specific implementation of IPlatformService for the Blazor/Browser client: exposes vibration helpers and a device-context provider using JS interop."
+      },
+      {
+        "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__NexusReader.Web.Client.csproj.json",
+        "role": "config",
+        "layer": "frontend",
+        "methodCount": 0,
+        "typeCount": 0,
+        "purpose": "Project file for the Blazor WebAssembly client project: declares SDK, target framework, build properties, NuGet package dependencies, and project references that link the client to application and shared UI projects."
+      },
+      {
+        "path": "NexusReader.Maui/MauiProgram.cs",
+        "artifactPath": "cache/summaries/NexusReader.Maui__MauiProgram.cs.json",
+        "role": "startup",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging."
+      },
+      {
+        "path": "NexusReader.Web/Program.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web__Program.cs.json",
+        "role": "startup",
+        "layer": "application",
+        "methodCount": 22,
+        "typeCount": 4,
+        "purpose": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260428184727_InitialPostgres.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260428184727_InitialPostgres.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 2,
+        "typeCount": 4,
+        "purpose": "EF Core migration that creates the initial PostgreSQL schema (identity tables, Ebooks, and a semantic knowledge cache) and corresponding indexes/foreign keys for the NexusReader.Data project."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260428184727_InitialPostgres.Designer.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260428184727_InitialPostgres.Designer.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 3,
+        "purpose": "EF Core auto-generated migration designer that describes the target EF Core model for the InitialPostgres migration (table/column/index/relationship configuration for Postgres)."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260428185239_IncreaseHashLength.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "EF Core migration that changes column definitions: increases the ContentHash length from 64 to 128 and converts several timestamp columns from timestamptz to timestamp without time zone (and provides the reverse in Down)."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260428185239_IncreaseHashLength.Designer.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260428185239_IncreaseHashLength.Designer.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 3,
+        "purpose": "EF Core migration designer for 'IncreaseHashLength' that defines the target model snapshot used by migrations (table schemas, columns, keys, indexes, relationships)."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260429080302_AddQuizResults.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260429080302_AddQuizResults.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "EF Core migration that adds a QuizResults table with columns, primary key, foreign key to AspNetUsers, and an index; and provides a Down method to drop the table."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260429080302_AddQuizResults.Designer.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260429080302_AddQuizResults.Designer.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 1,
+        "typeCount": 6,
+        "purpose": "EF Core migration designer that describes the target EF model for the AddQuizResults migration (database schema snapshot used by EF migrations)."
+      },
+      {
+        "path": "NexusReader.Data/Migrations/20260503175906_FinalNormalizedSubscriptionArchitecture.cs",
+        "artifactPath": "cache/summaries/NexusReader.Data__Migrations__20260503175906_FinalNormalizedSubscriptionArchitecture.cs.json",
+        "role": "database-config",
+        "layer": "data",
+        "methodCount": 2,
+        "typeCount": 4,
+        "purpose": "EF Core migration that updates DB schema for a normalized subscription and knowledge-unit architecture: alters columns, adds tenant fields and vectors, creates KnowledgeUnits/KnowledgeUnitLinks/SubscriptionPlans tables, seeds subscription plans, and adds indexes and foreign keys."
+      },
+      {
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+}
\ No newline at end of file
diff --git a/src/.documentation/machine/phase-inputs/domains__infrastructure-services.phase-inputs.json b/src/.documentation/machine/phase-inputs/domains__infrastructure-services.phase-inputs.json
new file mode 100644
index 0000000..9c326ff
--- /dev/null
+++ b/src/.documentation/machine/phase-inputs/domains__infrastructure-services.phase-inputs.json
@@ -0,0 +1,11242 @@
+{
+  "generatedAt": "2026-05-22T06:56:17.958Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "infrastructure-services.md",
+    "title": "Infrastructure Services: Knowledge, AI, Billing, Storage, Epub",
+    "kind": "service",
+    "scopeDescription": "Document core infrastructure services: KnowledgeService (AI/semantic search), EpubReaderService/MetadataExtractor, BookStorageService, BillingService, PromptRegistry, and mobile platform service implementations. Describe interfaces, implementation details, and configuration (AiSettings, StripeSettings).",
+    "relativeOutputPath": "domains/infrastructure-services.md",
+    "publicationTier": "secondary",
+    "collectionId": "domains:domains",
+    "collectionKind": "domains"
+  },
+  "inputs": {
+    "summaries": [
+      {
+        "path": "NexusReader.Infrastructure/Identity/TokenLimitHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Identity__TokenLimitHandler.cs.json",
+        "role": "handler",
+        "layer": "infrastructure",
+        "methodCount": 2,
+        "typeCount": 0,
+        "purpose": "Authorization handler that verifies whether the current user has available AI tokens or an unlimited token subscription, using the application's DbContext and Identity user data."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Identity/TokenLimitRequirement.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Identity__TokenLimitRequirement.cs.json",
+        "role": "middleware",
+        "layer": "infrastructure",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines an authorization requirement used to enforce per-user AI token limits (marker type for policy-based authorization)."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Persistence/EbookRepository.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Persistence__EbookRepository.cs.json",
+        "role": "repository",
+        "layer": "infrastructure",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "EF Core repository implementing IEbookRepository; provides data access for Author and Ebook entities using an AppDbContext, with provider-aware search logic and basic persistence operations."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/BillingService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__BillingService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 3,
+        "typeCount": 0,
+        "purpose": "Infrastructure billing service that reacts to Stripe subscription events, maps Stripe product IDs to internal subscription plans and updates NexusUser records accordingly."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__BookStorageService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 6,
+        "typeCount": 1,
+        "purpose": "Infrastructure service that saves ebook files and cover images to the local web root, returning web-relative paths suitable for serving from the web app."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__EpubReaderService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 7,
+        "typeCount": 0,
+        "purpose": "Service that locates EPUB files recorded in the database, parses a requested chapter, splits the chapter into sanitized content blocks, injects AI-action trigger blocks at thresholds, and returns a ReaderPageViewModel for consumption by the application."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__KnowledgeService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 14,
+        "typeCount": 0,
+        "purpose": "Provides AI-driven knowledge extraction, semantic search, RAG retrieval and caching; integrates with DB (Postgres/EF), Qdrant (vector DB), Neo4j (graph), and LLM/chat/embedding clients to produce structured KnowledgePackets, grounded answers, and semantic search DTOs."
+      },
+      {
+        "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Handlers__AuthenticationHeaderHandler.cs.json",
+        "role": "handler",
+        "layer": "frontend",
+        "methodCount": 3,
+        "typeCount": 1,
+        "purpose": "Delegating HTTP handler used in the Blazor/WebAssembly client to attach JWT Authorization headers to trusted requests and to transparently refresh expired tokens in a thread-safe way."
+      },
+      {
+        "path": "NexusReader.Web.Client/Program.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Program.cs.json",
+        "role": "startup",
+        "layer": "frontend",
+        "methodCount": 15,
+        "typeCount": 5,
+        "purpose": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser."
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Services__WasmEpubService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 3,
+        "typeCount": 0,
+        "purpose": "Client-side WASM EPUB reader and local EPUB metadata extractor used by the Web.Client project: performs HTTP retrieval of chapter content and local EPUB metadata extraction in the browser runtime."
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Services__WasmKnowledgeService.cs.json",
+        "role": "integration-client",
+        "layer": "frontend",
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+        "typeCount": 0,
+        "purpose": "WASM-side implementation of IKnowledgeService that forwards knowledge/AI related requests from the Blazor WebAssembly client to server HTTP endpoints and returns typed Result<T> responses."
+      },
+      {
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+        "role": "service",
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+        "typeCount": 1,
+        "purpose": "Web-specific implementation of IPlatformService for the Blazor/Browser client: exposes vibration helpers and a device-context provider using JS interop."
+      },
+      {
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+        "layer": "infrastructure",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a POCO that models AI/LLM configuration settings (API key, model names, token limits, retries, temperature) intended for binding from configuration (likely using the .NET Options pattern)."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Configuration/StripeSettings.cs",
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+        "role": "config",
+        "layer": "infrastructure",
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+        "typeCount": 1,
+        "purpose": "Defines configuration settings for Stripe integration (product IDs) and exposes the configuration section name for binding."
+      },
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+      },
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+        "purpose": "Provides a small infrastructure helper to repair/truncate malformed or truncated JSON text by pruning trailing garbage and auto-closing open strings/brackets/braces."
+      },
+      {
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+        "role": "startup",
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+      },
+      {
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+        "artifactPath": "cache/summaries/NexusReader.Web__Program.cs.json",
+        "role": "startup",
+        "layer": "application",
+        "methodCount": 22,
+        "typeCount": 4,
+        "purpose": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host."
+      },
+      {
+        "path": "NexusReader.Infrastructure/NexusReader.Infrastructure.csproj",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__NexusReader.Infrastructure.csproj.json",
+        "role": "unknown",
+        "layer": "infrastructure",
+        "methodCount": 0,
+        "typeCount": 0,
+        "purpose": "MSBuild project file that defines the Infrastructure project: references Application and Data projects, declares framework and a set of NuGet packages required for runtime concerns like AI, persistence, background jobs, resilience, graph DB, vector DB, and payments."
+      },
+      {
+        "path": "NexusReader.Application/DependencyInjection.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DependencyInjection.cs.json",
+        "role": "service-registration",
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+        "purpose": "Provides application-level DI registrations (Mapster mapping config and MediatR handler registration) and exposes the application assembly for composition/root usage."
+      },
+      {
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+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__DependencyInjection.cs.json",
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+      },
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+      },
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+        "purpose": "Infrastructure service that reads an EPUB stream to extract title, author, description and cover image for pre-ingestion preview without persisting data."
+      },
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+      },
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+          "attachedFromNodeId": "flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_fallback_40_40",
+          "attachedEdgeId": "edge_flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_fallback_40_40_flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastprogressasync_external_call_44_44_invokes_44",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "comment_55",
+          "filePath": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+          "methodName": "BroadcastIngestionProgressAsync",
+          "actionKind": "mapping",
+          "line": 55,
+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "external-call_57",
+          "filePath": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+          "methodName": "BroadcastIngestionProgressAsync",
+          "actionKind": "external-call",
+          "line": 57,
+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "broadcastingestionprogressasync_external-call_59_0",
+          "filePath": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+          "methodName": "BroadcastIngestionProgressAsync",
+          "actionKind": "external-call",
+          "line": 59,
+          "visibility": "secondary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because secondary-visible action external-call should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastingestionprogressasync_external_call_59_59",
+          "attachedFromNodeId": "flow_method_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastingestionprogressasync_49",
+          "attachedEdgeId": "edge_flow_method_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastingestionprogressasync_49_flow_action_nexusreader_infrastructure_realtime_signalrsyncbroadcaster_cs_broadcastingestionprogressasync_external_call_59_59_invokes_59",
+          "includedInFlowIds": []
+        }
+      ]
+    }
+  }
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/phase-inputs/domains__maui-mobile.phase-inputs.json b/src/.documentation/machine/phase-inputs/domains__maui-mobile.phase-inputs.json
new file mode 100644
index 0000000..40c38b1
--- /dev/null
+++ b/src/.documentation/machine/phase-inputs/domains__maui-mobile.phase-inputs.json
@@ -0,0 +1,11468 @@
+{
+  "generatedAt": "2026-05-22T06:46:55.700Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "maui-mobile.md",
+    "title": "MAUI Mobile Host: App wiring and platform services",
+    "kind": "service",
+    "scopeDescription": "MAUI-specific project: MauiProgram entrypoint, platform implementations and services (MauiStorageService, MauiPlatformService), Android platform glue, and how the MAUI host composes shared UI and Application services.",
+    "relativeOutputPath": "domains/maui-mobile.md",
+    "publicationTier": "secondary",
+    "collectionId": "domains:domains",
+    "collectionKind": "domains"
+  },
+  "inputs": {
+    "summaries": [
+      {
+        "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Handlers__AuthenticationHeaderHandler.cs.json",
+        "role": "handler",
+        "layer": "frontend",
+        "methodCount": 3,
+        "typeCount": 1,
+        "purpose": "Delegating HTTP handler used in the Blazor/WebAssembly client to attach JWT Authorization headers to trusted requests and to transparently refresh expired tokens in a thread-safe way."
+      },
+      {
+        "path": "NexusReader.Web.Client/Program.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Program.cs.json",
+        "role": "startup",
+        "layer": "frontend",
+        "methodCount": 15,
+        "typeCount": 5,
+        "purpose": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser."
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Services__WasmEpubService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 3,
+        "typeCount": 0,
+        "purpose": "Client-side WASM EPUB reader and local EPUB metadata extractor used by the Web.Client project: performs HTTP retrieval of chapter content and local EPUB metadata extraction in the browser runtime."
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Services__WasmKnowledgeService.cs.json",
+        "role": "integration-client",
+        "layer": "frontend",
+        "methodCount": 10,
+        "typeCount": 0,
+        "purpose": "WASM-side implementation of IKnowledgeService that forwards knowledge/AI related requests from the Blazor WebAssembly client to server HTTP endpoints and returns typed Result<T> responses."
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Services__WebPlatformService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "Web-specific implementation of IPlatformService for the Blazor/Browser client: exposes vibration helpers and a device-context provider using JS interop."
+      },
+      {
+        "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__NexusReader.Web.Client.csproj.json",
+        "role": "config",
+        "layer": "frontend",
+        "methodCount": 0,
+        "typeCount": 0,
+        "purpose": "Project file for the Blazor WebAssembly client project: declares SDK, target framework, build properties, NuGet package dependencies, and project references that link the client to application and shared UI projects."
+      },
+      {
+        "path": "NexusReader.Maui/MauiProgram.cs",
+        "artifactPath": "cache/summaries/NexusReader.Maui__MauiProgram.cs.json",
+        "role": "startup",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging."
+      },
+      {
+        "path": "NexusReader.Maui/Platforms/Android/MainApplication.cs",
+        "artifactPath": "cache/summaries/NexusReader.Maui__Platforms__Android__MainApplication.cs.json",
+        "role": "program-entry",
+        "layer": "frontend",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "Android MAUI application entry that integrates with the Android runtime and creates the MAUI app instance for the NexusReader mobile app."
+      },
+      {
+        "path": "NexusReader.Maui/Services/MauiStorageService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Maui__Services__MauiStorageService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 8,
+        "typeCount": 0,
+        "purpose": "Platform-specific MAUI implementation of INativeStorageService that provides synchronous-preference and secure-storage access with result-wrapping and exception-to-failure mapping."
+      },
+      {
+        "path": "NexusReader.Web/Program.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web__Program.cs.json",
+        "role": "startup",
+        "layer": "application",
+        "methodCount": 22,
+        "typeCount": 4,
+        "purpose": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host."
+      },
+      {
+        "path": "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure.Mobile__NexusReader.Infrastructure.Mobile.csproj.json",
+        "role": "config",
+        "layer": "infrastructure",
+        "methodCount": 0,
+        "typeCount": 0,
+        "purpose": "MSBuild project file for the NexusReader mobile app; defines target platforms, MAUI usage, package and project dependencies, and build-time settings for the mobile application."
+      },
+      {
+        "path": "NexusReader.Maui/App.xaml.cs",
+        "artifactPath": "cache/summaries/NexusReader.Maui__App.xaml.cs.json",
+        "role": "program-entry",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "MAUI application entry class: initializes XAML components and sets the app's MainPage at startup."
+      },
+      {
+        "path": "NexusReader.Maui/MainPage.xaml.cs",
+        "artifactPath": "cache/summaries/NexusReader.Maui__MainPage.xaml.cs.json",
+        "role": "ui-page",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "MAUI code-behind for the app's main page; defines the MainPage partial class and initializes XAML-backed UI components."
+      },
+      {
+        "path": "NexusReader.Maui/Platforms/Android/MainActivity.cs",
+        "artifactPath": "cache/summaries/NexusReader.Maui__Platforms__Android__MainActivity.cs.json",
+        "role": "program-entry",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Defines the Android MainActivity for the MAUI app; acts as the Android entry point (MainLauncher) and logs basic lifecycle events."
+      },
+      {
+        "path": "NexusReader.Maui/_Imports.razor",
+        "artifactPath": "cache/summaries/NexusReader.Maui___Imports.razor.json",
+        "role": "ui-component",
+        "layer": "frontend",
+        "methodCount": 0,
+        "typeCount": 0,
+        "purpose": "Provides global @using directives for Razor components in the NexusReader.Maui project so shared namespaces are available to all .razor files."
+      },
+      {
+        "path": "NexusReader.Maui/Main.razor",
+        "artifactPath": "cache/summaries/NexusReader.Maui__Main.razor.json",
+        "role": "ui-component",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 0,
+        "purpose": "Razor root routing component for the MAUI app: defines app Router, handles found/not-found route flows, enforces authorization with a redirect-to-login fallback, and applies the main layout and focus-on-navigate behavior."
+      },
+      {
+        "path": "NexusReader.Maui/NexusReader.Maui.csproj",
+        "artifactPath": "cache/summaries/NexusReader.Maui__NexusReader.Maui.csproj.json",
+        "role": "startup",
+        "layer": "frontend",
+        "methodCount": 0,
+        "typeCount": 0,
+        "purpose": "Project file for the MAUI mobile client of Nexus E-Reader; defines target frameworks, platform support, app metadata, MAUI features, package dependencies, and project references that shape the mobile runtime and build outputs."
+      },
+      {
+        "path": "NexusReader.Infrastructure.Mobile/Class1.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure.Mobile__Class1.cs.json",
+        "role": "unknown",
+        "layer": "unknown",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Placeholder/empty class in the NexusReader.Infrastructure.Mobile project; likely a template/auto-generated file with no runtime behavior."
+      },
+      {
+        "path": "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure.Mobile__Services__MauiPlatformService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 6,
+        "typeCount": 0,
+        "purpose": "MAUI platform implementation that adapts device/haptic APIs to the application's IPlatformService abstraction for mobile platforms."
+      },
+      {
+        "path": "NexusReader.Infrastructure.Mobile/Services/MauiStorageService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure.Mobile__Services__MauiStorageService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 8,
+        "typeCount": 0,
+        "purpose": "MAUI-specific implementation of INativeStorageService that adapts MAUI Preferences and SecureStorage APIs to the application's FluentResults-based async storage abstraction."
+      },
+      {
+        "path": "NexusReader.Application/DependencyInjection.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DependencyInjection.cs.json",
+        "role": "service-registration",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 0,
+        "purpose": "Provides application-level DI registrations (Mapster mapping config and MediatR handler registration) and exposes the application assembly for composition/root usage."
+      },
+      {
+        "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__DependencyInjection.cs.json",
+        "role": "service-registration",
+        "layer": "infrastructure",
+        "methodCount": 2,
+        "typeCount": 2,
+        "purpose": "Registers and configures infrastructure dependencies: DB contexts, external clients (Qdrant, Neo4j), Hangfire, AI clients/resilience, app services, authorization policies, and related configuration for the NexusReader solution."
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__RealTime__SyncHub.cs.json",
+        "role": "endpoint",
+        "layer": "infrastructure",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "Defines a SignalR Hub (SyncHub) that handles real-time reading-progress updates and per-user connection grouping; it forwards progress updates into the application via MediatR."
+      },
+      {
+        "path": "NexusReader.UI.Shared/Layout/MainHubLayout.razor",
+        "artifactPath": "cache/summaries/NexusReader.UI.Shared__Layout__MainHubLayout.razor.json",
+        "role": "ui-component",
+        "layer": "frontend",
+        "methodCount": 2,
+        "typeCount": 1,
+        "purpose": "Blazor layout component that renders the main application hub (sidebar navigation, user brief, logout) and coordinates initial authentication sync with the server."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__KnowledgeService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 14,
+        "typeCount": 0,
+        "purpose": "Provides AI-driven knowledge extraction, semantic search, RAG retrieval and caching; integrates with DB (Postgres/EF), Qdrant (vector DB), Neo4j (graph), and LLM/chat/embedding clients to produce structured KnowledgePackets, grounded answers, and semantic search DTOs."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__EpubReaderService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 7,
+        "typeCount": 0,
+        "purpose": "Service that locates EPUB files recorded in the database, parses a requested chapter, splits the chapter into sanitized content blocks, injects AI-action trigger blocks at thresholds, and returns a ReaderPageViewModel for consumption by the application."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__EpubMetadataExtractor.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 1,
+        "typeCount": 0,
+        "purpose": "Infrastructure service that reads an EPUB stream to extract title, author, description and cover image for pre-ingestion preview without persisting data."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/BookStorageService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__BookStorageService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
+        "methodCount": 6,
+        "typeCount": 1,
+        "purpose": "Infrastructure service that saves ebook files and cover images to the local web root, returning web-relative paths suitable for serving from the web app."
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__RealTime__SignalRSyncBroadcaster.cs.json",
+        "role": "integration-client",
+        "layer": "infrastructure",
+        "methodCount": 3,
+        "typeCount": 1,
+        "purpose": "Implements a SignalR-backed ISyncBroadcaster to push sync/progress updates (general progress and ingestion progress) to all connected devices of a user via HubContext."
+      },
+      {
+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__Commands__Sync__UpdateReadingProgressCommand.cs.json",
+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a MediatR command DTO used to update/sync a user's reading progress for an ebook across the application."
+      }
+    ],
+    "contextBag": {
+      "id": "maui_mobile_md",
+      "bagType": "startup",
+      "confidence": 0.96,
+      "anchorFiles": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs"
+      ],
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+        "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs",
+        "NexusReader.Infrastructure.Mobile/Services/MauiStorageService.cs",
+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Web.Client/Services/WasmEpubService.cs",
+        "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+        "NexusReader.Web.Client/Services/WebPlatformService.cs",
+        "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+        "NexusReader.Infrastructure.Mobile/Class1.cs",
+        "NexusReader.Maui/MauiProgram.cs",
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+        "NexusReader.Maui/Services/MauiStorageService.cs",
+        "NexusReader.Web/Program.cs",
+        "NexusReader.Infrastructure.Mobile/NexusReader.Infrastructure.Mobile.csproj",
+        "NexusReader.Maui/App.xaml.cs",
+        "NexusReader.Maui/MainPage.xaml.cs",
+        "NexusReader.Maui/Platforms/Android/MainActivity.cs",
+        "NexusReader.Maui/_Imports.razor",
+        "NexusReader.Maui/Main.razor",
+        "NexusReader.Maui/NexusReader.Maui.csproj",
+        "NexusReader.Application/DependencyInjection.cs",
+        "NexusReader.Infrastructure/DependencyInjection.cs",
+        "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "NexusReader.UI.Shared/Layout/MainHubLayout.razor",
+        "NexusReader.Infrastructure/Services/KnowledgeService.cs",
+        "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+        "NexusReader.Infrastructure/Services/BookStorageService.cs",
+        "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
+        "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs"
+      ],
+      "relatedDomains": [
+        "auth"
+      ],
+      "relatedEntrypoints": [
+        "NexusReader.Web.Client/Program.cs",
+        "NexusReader.Maui/MauiProgram.cs",
+        "NexusReader.Web/Program.cs"
+      ]
+    },
+    "flowGraph": {
+      "contextBagId": "maui_mobile_md",
+      "nodeCount": 664,
+      "edgeCount": 686,
+      "flowCount": 6,
+      "flows": [
+        {
+          "id": "flow_1_nexusreader_web_client_program_cs",
+          "name": "Program.cs",
+          "category": "startup",
+          "entryNodeId": "flow_file_nexusreader_web_client_program_cs_file_1",
+          "confidence": 0.95,
+          "businessValue": 89,
+          "validationIssueCount": 0,
+          "evidencePaths": [
+            "NexusReader.Web.Client/Program.cs"
+          ],
+          "producedArtifacts": [
+            {
+              "id": "maui_mobile_md_phase_inputs",
+              "label": "Phase Inputs",
+              "path": "machine/phase-inputs/domains__maui-mobile.phase-inputs.json",
+              "producerPath": "src/documentation/v4/phase4Generation.ts",
+              "status": "generated"
+            },
+            {
+              "id": "maui_mobile_md_context_bag",
+              "label": "Context Bag",
+              "path": "machine/context-bags/maui_mobile.context-bag.json",
+              "producerPath": "src/documentation/v4/buildContextBags.ts",
+              "status": "generated"
+            },
+            {
+              "id": "maui_mobile_md_planning_debug",
+              "label": "Planning Debug",
+              "path": "debug/planning.debug.json",
+              "producerPath": "src/documentation/v4/phase1Orientation.ts",
+              "status": "generated"
+            },
+            {
+              "id": "maui_mobile_md_flow_catalog",
+              "label": "Flow Catalog",
+              "path": "machine/flow-catalog.json",
+              "producerPath": "src/documentation/v4/phase3_7FlowRanking.ts",
+              "status": "generated"
+            },
+            {
+              "id": "maui_mobile_md_flow_selection",
+              "label": "Flow Selection",
+              "path": "machine/flow-selection.json",
+              "producerPath": "src/documentation/v4/phase3_7FlowRanking.ts",
+              "status": "generated"
+            },
+            {
+              "id": "maui_mobile_md_business_map",
+              "label": "Business Map",
+              "path": "machine/business-map.json",
+              "producerPath": "src/documentation/v4/phase3_5BusinessUnderstanding.ts",
+              "status": "generated"
+            },
+            {
+              "id": "maui_mobile_md_index_output",
+              "label": "Published Index",
+              "path": "index.md",
+              "producerPath": "src/documentation/v4/phase5Index.ts",
+              "status": "generated"
+            }
+          ]
+        },
+        {
+          "id": "flow_0_nexusreader_web_program_cs",
+          "name": "Program.cs",
+          "category": "startup",
+          "entryNodeId": "flow_file_nexusreader_web_program_cs_file_1",
+          "confidence": 0.95,
+          "businessValue": 82,
+          "validationIssueCount": 0,
+          "evidencePaths": [
+            "NexusReader.Web/Program.cs"
+          ],
+          "producedArtifacts": [
+            {
+              "id": "maui_mobile_md_phase_inputs",
+              "label": "Phase Inputs",
+              "path": "machine/phase-inputs/domains__maui-mobile.phase-inputs.json",
+              "producerPath": "src/documentation/v4/phase4Generation.ts",
+              "status": "generated"
+            },
+            {
+              "id": "maui_mobile_md_context_bag",
+              "label": "Context Bag",
+              "path": "machine/context-bags/maui_mobile.context-bag.json",
+              "producerPath": "src/documentation/v4/buildContextBags.ts",
+              "status": "generated"
+            },
+            {
+              "id": "maui_mobile_md_planning_debug",
+              "label": "Planning Debug",
+              "path": "debug/planning.debug.json",
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+        },
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+        },
+        {
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+        },
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+        },
+        {
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+          "promotionReason": "Promoted because primary-visible action guard-clause should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        },
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+        },
+        {
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+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "knowledgeapi_delete_api_knowledge_clearcacheasync_mapping_321_0",
+          "filePath": "NexusReader.Web/Program.cs",
+          "methodName": "KnowledgeApi DELETE /api/knowledge/ (ClearCacheAsync)",
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+          "visibility": "detail-only",
+          "promoted": false,
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+        },
+        {
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+          "visibility": "detail-only",
+          "promoted": true,
+          "promotionReason": "Promoted because action branch affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "knowledgeapi_delete_api_knowledge_clearcacheasync_guard-clause_324_1",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "visibility": "primary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because primary-visible action guard-clause should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "knowledgeapi_delete_api_knowledge_clearcacheasync_return_327_2",
+          "filePath": "NexusReader.Web/Program.cs",
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+          "promoted": true,
+          "promotionReason": "Promoted because action return affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "call_7",
+          "filePath": "NexusReader.Maui/App.xaml.cs",
+          "methodName": "App",
+          "actionKind": "mapping",
+          "line": 7,
+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+          "includedInFlowIds": []
+        },
+        {
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+          "filePath": "NexusReader.Maui/App.xaml.cs",
+          "methodName": "App",
+          "actionKind": "mapping",
+          "line": 9,
+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "constructor_5",
+          "filePath": "NexusReader.Maui/MainPage.xaml.cs",
+          "methodName": "MainPage",
+          "actionKind": "mapping",
+          "line": 5,
+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "orchestration_4",
+          "filePath": "NexusReader.Maui/Main.razor",
+          "methodName": "RenderRouter",
+          "actionKind": "mapping",
+          "line": 4,
+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "branch_5",
+          "filePath": "NexusReader.Maui/Main.razor",
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+          "actionKind": "branch",
+          "line": 5,
+          "visibility": "detail-only",
+          "promoted": true,
+          "promotionReason": "Promoted because action branch affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_maui_main_razor_renderrouter_branch_5_5",
+          "attachedFromNodeId": "flow_method_nexusreader_maui_main_razor_renderrouter_4",
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+          "outgoingTargetNodeId": "flow_file_nexusreader_ui_shared_layout_mainhublayout_razor_file_1",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "ui-layout_6",
+          "filePath": "NexusReader.Maui/Main.razor",
+          "methodName": "RenderRouter",
+          "actionKind": "mapping",
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+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "fallback_7",
+          "filePath": "NexusReader.Maui/Main.razor",
+          "methodName": "RenderRouter",
+          "actionKind": "fallback",
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+          "visibility": "detail-only",
+          "promoted": true,
+          "promotionReason": "Promoted because action fallback affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_maui_main_razor_renderrouter_fallback_7_7",
+          "attachedFromNodeId": "flow_action_nexusreader_maui_main_razor_renderrouter_branch_5_5",
+          "attachedEdgeId": "edge_flow_action_nexusreader_maui_main_razor_renderrouter_branch_5_5_flow_action_nexusreader_maui_main_razor_renderrouter_fallback_7_7_falls-back_7",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "ui-behavior_11",
+          "filePath": "NexusReader.Maui/Main.razor",
+          "methodName": "RenderRouter",
+          "actionKind": "mapping",
+          "line": 11,
+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "ui-notification_15",
+          "filePath": "NexusReader.Maui/Main.razor",
+          "methodName": "RenderRouter",
+          "actionKind": "mapping",
+          "line": 15,
+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "try-catch_12",
+          "filePath": "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs",
+          "methodName": "VibrateSuccessAsync",
+          "actionKind": "mapping",
+          "line": 12,
+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "external-call_14",
+          "filePath": "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs",
+          "methodName": "VibrateSuccessAsync",
+          "actionKind": "external-call",
+          "line": 14,
+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "async-delay_15",
+          "filePath": "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs",
+          "methodName": "VibrateSuccessAsync",
+          "actionKind": "mapping",
+          "line": 15,
+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "external-call_16",
+          "filePath": "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs",
+          "methodName": "VibrateSuccessAsync",
+          "actionKind": "external-call",
+          "line": 16,
+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "vibratesuccessasync_return_17_0",
+          "filePath": "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs",
+          "methodName": "VibrateSuccessAsync",
+          "actionKind": "return",
+          "line": 17,
+          "visibility": "detail-only",
+          "promoted": true,
+          "promotionReason": "Promoted because action return affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_infrastructure_mobile_services_mauiplatformservice_cs_vibratesuccessasync_return_17_17",
+          "attachedFromNodeId": "flow_method_nexusreader_infrastructure_mobile_services_mauiplatformservice_cs_vibratesuccessasync_10",
+          "attachedEdgeId": "edge_flow_method_nexusreader_infrastructure_mobile_services_mauiplatformservice_cs_vibratesuccessasync_10_flow_action_nexusreader_infrastructure_mobile_services_mauiplatformservice_cs_vibratesuccessasync_return_17_17_returns_17",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "vibratesuccessasync_return_21_1",
+          "filePath": "NexusReader.Infrastructure.Mobile/Services/MauiPlatformService.cs",
+          "methodName": "VibrateSuccessAsync",
+          "actionKind": "return",
+          "line": 21,
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diff --git a/src/.documentation/machine/phase-inputs/flows__realtime-and-sync.phase-inputs.json b/src/.documentation/machine/phase-inputs/flows__realtime-and-sync.phase-inputs.json
new file mode 100644
index 0000000..838a2b6
--- /dev/null
+++ b/src/.documentation/machine/phase-inputs/flows__realtime-and-sync.phase-inputs.json
@@ -0,0 +1,1253 @@
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+        },
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+          "promoted": false,
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+          "visibility": "secondary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+        },
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+          "filePath": "NexusReader.UI.Shared/Services/SyncService.cs",
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+          "visibility": "secondary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because secondary-visible action external-call should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_ui_shared_services_syncservice_cs_updateprogressasync_external_call_89_89",
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+        },
+        {
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+        },
+        {
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+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+        {
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+          "visibility": "secondary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because secondary-visible action log should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
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+          "includedInFlowIds": []
+        },
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+          "visibility": "detail-only",
+          "promoted": true,
+          "promotionReason": "Promoted because action return affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "updateprogressasync_return_100_5",
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+          "visibility": "detail-only",
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+          "promotionReason": "Promoted because action return affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
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+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "cancel_105",
+          "filePath": "NexusReader.UI.Shared/Services/SyncService.cs",
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+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+        {
+          "actionId": "dispose-external_106",
+          "filePath": "NexusReader.UI.Shared/Services/SyncService.cs",
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+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
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+        {
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+          "filePath": "NexusReader.UI.Shared/Services/SyncService.cs",
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+          "visibility": "secondary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because secondary-visible action branch should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_ui_shared_services_syncservice_cs_disposeasync_branch_106_106",
+          "attachedFromNodeId": "flow_method_nexusreader_ui_shared_services_syncservice_cs_disposeasync_103",
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+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "forward_114",
+          "filePath": "NexusReader.UI.Shared/Services/SyncService.cs",
+          "methodName": "IAsyncDisposable.DisposeAsync",
+          "actionKind": "mapping",
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+          "visibility": "detail-only",
+          "promoted": false,
+          "promotionReason": "Action remained metadata-only because it was detail-only and did not represent control flow or a return boundary.",
+          "includedInFlowIds": []
+        }
+      ]
+    }
+  }
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/phase-inputs/flows__security-identity-auth.phase-inputs.json b/src/.documentation/machine/phase-inputs/flows__security-identity-auth.phase-inputs.json
new file mode 100644
index 0000000..51d07d2
--- /dev/null
+++ b/src/.documentation/machine/phase-inputs/flows__security-identity-auth.phase-inputs.json
@@ -0,0 +1,2136 @@
+{
+  "generatedAt": "2026-05-22T06:40:47.689Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "security-identity-auth.md",
+    "title": "Security, Identity and Authorization",
+    "kind": "security",
+    "scopeDescription": "Document identity and authorization pieces: TokenLimitHandler and TokenLimitRequirement, ProUserRequirement/ProUserHandler, ServerIdentityService, client and server identity flows, AuthenticationStateProvider, and where identity checks are enforced in handlers/controllers.",
+    "relativeOutputPath": "flows/security-identity-auth.md",
+    "publicationTier": "secondary",
+    "collectionId": "flows:flows",
+    "collectionKind": "flows"
+  },
+  "inputs": {
+    "summaries": [
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+          "promotedNodeId": "flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_110_110",
+          "attachedFromNodeId": "flow_method_nexusreader_web_services_serveridentityservice_cs_getprofileasync_108",
+          "attachedEdgeId": "edge_flow_method_nexusreader_web_services_serveridentityservice_cs_getprofileasync_108_flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_110_110_evaluates-condition_110",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "getprofileasync_guard-clause_111_0",
+          "filePath": "NexusReader.Web/Services/ServerIdentityService.cs",
+          "methodName": "GetProfileAsync",
+          "actionKind": "guard-clause",
+          "line": 111,
+          "visibility": "primary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because primary-visible action guard-clause should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_111_111",
+          "attachedFromNodeId": "flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_110_110",
+          "attachedEdgeId": "edge_flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_110_110_flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_111_111_evaluates-condition_111",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "guard-clause_113",
+          "filePath": "NexusReader.Web/Services/ServerIdentityService.cs",
+          "methodName": "GetProfileAsync",
+          "actionKind": "guard-clause",
+          "line": 113,
+          "visibility": "detail-only",
+          "promoted": true,
+          "promotionReason": "Promoted because action guard-clause affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_113_113",
+          "attachedFromNodeId": "flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_111_111",
+          "attachedEdgeId": "edge_flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_111_111_flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_113_113_evaluates-condition_113",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "getprofileasync_repository-read_113_1",
+          "filePath": "NexusReader.Web/Services/ServerIdentityService.cs",
+          "methodName": "GetProfileAsync",
+          "actionKind": "repository-read",
+          "line": 113,
+          "visibility": "secondary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because secondary-visible action repository-read should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_repository_read_113_113",
+          "attachedFromNodeId": "flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_113_113",
+          "attachedEdgeId": "edge_flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_113_113_flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_repository_read_113_113_invokes_113",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "getprofileasync_guard-clause_114_2",
+          "filePath": "NexusReader.Web/Services/ServerIdentityService.cs",
+          "methodName": "GetProfileAsync",
+          "actionKind": "guard-clause",
+          "line": 114,
+          "visibility": "primary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because primary-visible action guard-clause should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_114_114",
+          "attachedFromNodeId": "flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_repository_read_113_113",
+          "attachedEdgeId": "edge_flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_repository_read_113_113_flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_114_114_evaluates-condition_114",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "branch_116",
+          "filePath": "NexusReader.Web/Services/ServerIdentityService.cs",
+          "methodName": "GetProfileAsync",
+          "actionKind": "branch",
+          "line": 116,
+          "visibility": "detail-only",
+          "promoted": true,
+          "promotionReason": "Promoted because action branch affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_branch_116_116",
+          "attachedFromNodeId": "flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_114_114",
+          "attachedEdgeId": "edge_flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_114_114_flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_branch_116_116_evaluates-condition_116",
+          "outgoingTargetNodeId": "flow_file_nexusreader_application_queries_user_getuserprofilequery_cs_file_1",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "getprofileasync_guard-clause_117_3",
+          "filePath": "NexusReader.Web/Services/ServerIdentityService.cs",
+          "methodName": "GetProfileAsync",
+          "actionKind": "guard-clause",
+          "line": 117,
+          "visibility": "primary-visible",
+          "promoted": true,
+          "promotionReason": "Promoted because primary-visible action guard-clause should remain visible in runtime diagrams. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_117_117",
+          "attachedFromNodeId": "flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_branch_116_116",
+          "attachedEdgeId": "edge_flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_branch_116_116_flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_117_117_evaluates-condition_117",
+          "includedInFlowIds": []
+        },
+        {
+          "actionId": "getprofileasync_return_119_4",
+          "filePath": "NexusReader.Web/Services/ServerIdentityService.cs",
+          "methodName": "GetProfileAsync",
+          "actionKind": "return",
+          "line": 119,
+          "visibility": "detail-only",
+          "promoted": true,
+          "promotionReason": "Promoted because action return affects control flow or return behavior. Promoted node was later excluded from discovered flow slices.",
+          "promotedNodeId": "flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_return_119_119",
+          "attachedFromNodeId": "flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_117_117",
+          "attachedEdgeId": "edge_flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_guard_clause_117_117_flow_action_nexusreader_web_services_serveridentityservice_cs_getprofileasync_return_119_119_returns_119",
+          "includedInFlowIds": []
+        }
+      ]
+    }
+  }
+}
\ No newline at end of file
diff --git a/src/.documentation/machine/phase-inputs/flows__web-client-wasm.phase-inputs.json b/src/.documentation/machine/phase-inputs/flows__web-client-wasm.phase-inputs.json
new file mode 100644
index 0000000..090694a
--- /dev/null
+++ b/src/.documentation/machine/phase-inputs/flows__web-client-wasm.phase-inputs.json
@@ -0,0 +1,9454 @@
+{
+  "generatedAt": "2026-05-22T06:43:41.526Z",
+  "runId": "v4-1779429619297-t7x306q1",
+  "document": {
+    "filename": "web-client-wasm.md",
+    "title": "Blazor WebAssembly Client: hosting, handlers, and platform services",
+    "kind": "service",
+    "scopeDescription": "Web client project (NexusReader.Web.Client): WASM hosting, authentication message handler(s), Wasm-specific services (WasmEpubService, WasmKnowledgeService), and integration points with the shared UI components and server APIs.",
+    "relativeOutputPath": "flows/web-client-wasm.md",
+    "publicationTier": "secondary",
+    "collectionId": "flows:flows",
+    "collectionKind": "flows"
+  },
+  "inputs": {
+    "summaries": [
+      {
+        "path": "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Handlers__AuthenticationHeaderHandler.cs.json",
+        "role": "handler",
+        "layer": "frontend",
+        "methodCount": 3,
+        "typeCount": 1,
+        "purpose": "Delegating HTTP handler used in the Blazor/WebAssembly client to attach JWT Authorization headers to trusted requests and to transparently refresh expired tokens in a thread-safe way."
+      },
+      {
+        "path": "NexusReader.Web.Client/Program.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Program.cs.json",
+        "role": "startup",
+        "layer": "frontend",
+        "methodCount": 15,
+        "typeCount": 5,
+        "purpose": "Bootstraps the WebAssembly client: configures DI/service registrations for the WASM app, registers WASM-specific implementations, and provides throw-only stubs for server-only services so DI validation passes in the browser."
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmEpubService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Services__WasmEpubService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 3,
+        "typeCount": 0,
+        "purpose": "Client-side WASM EPUB reader and local EPUB metadata extractor used by the Web.Client project: performs HTTP retrieval of chapter content and local EPUB metadata extraction in the browser runtime."
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Services__WasmKnowledgeService.cs.json",
+        "role": "integration-client",
+        "layer": "frontend",
+        "methodCount": 10,
+        "typeCount": 0,
+        "purpose": "WASM-side implementation of IKnowledgeService that forwards knowledge/AI related requests from the Blazor WebAssembly client to server HTTP endpoints and returns typed Result<T> responses."
+      },
+      {
+        "path": "NexusReader.Web.Client/Services/WebPlatformService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__Services__WebPlatformService.cs.json",
+        "role": "service",
+        "layer": "frontend",
+        "methodCount": 4,
+        "typeCount": 1,
+        "purpose": "Web-specific implementation of IPlatformService for the Blazor/Browser client: exposes vibration helpers and a device-context provider using JS interop."
+      },
+      {
+        "path": "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+        "artifactPath": "cache/summaries/NexusReader.Web.Client__NexusReader.Web.Client.csproj.json",
+        "role": "config",
+        "layer": "frontend",
+        "methodCount": 0,
+        "typeCount": 0,
+        "purpose": "Project file for the Blazor WebAssembly client project: declares SDK, target framework, build properties, NuGet package dependencies, and project references that link the client to application and shared UI projects."
+      },
+      {
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+        "artifactPath": "cache/summaries/NexusReader.Maui__MauiProgram.cs.json",
+        "role": "startup",
+        "layer": "frontend",
+        "methodCount": 1,
+        "typeCount": 1,
+        "purpose": "Creates and configures the MAUI application builder: registers DI services (platform, storage, identity, UI state, network), composes the Application layer and MediatR, and returns the built MauiApp inside a try/catch to aid debugging."
+      },
+      {
+        "path": "NexusReader.Web/Program.cs",
+        "artifactPath": "cache/summaries/NexusReader.Web__Program.cs.json",
+        "role": "startup",
+        "layer": "application",
+        "methodCount": 22,
+        "typeCount": 4,
+        "purpose": "Program bootstrap for the NexusReader.Web ASP.NET app: registers services, configures authentication/authorization, initializes DB, maps Minimal API endpoints (including knowledge, library, identity, Stripe webhooks), and starts the web host."
+      },
+      {
+        "path": "NexusReader.Application/DependencyInjection.cs",
+        "artifactPath": "cache/summaries/NexusReader.Application__DependencyInjection.cs.json",
+        "role": "service-registration",
+        "layer": "application",
+        "methodCount": 2,
+        "typeCount": 0,
+        "purpose": "Provides application-level DI registrations (Mapster mapping config and MediatR handler registration) and exposes the application assembly for composition/root usage."
+      },
+      {
+        "path": "NexusReader.Infrastructure/DependencyInjection.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__DependencyInjection.cs.json",
+        "role": "service-registration",
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+        "typeCount": 2,
+        "purpose": "Registers and configures infrastructure dependencies: DB contexts, external clients (Qdrant, Neo4j), Hangfire, AI clients/resilience, app services, authorization policies, and related configuration for the NexusReader solution."
+      },
+      {
+        "path": "NexusReader.Infrastructure/RealTime/SyncHub.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__RealTime__SyncHub.cs.json",
+        "role": "endpoint",
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+        "typeCount": 1,
+        "purpose": "Defines a SignalR Hub (SyncHub) that handles real-time reading-progress updates and per-user connection grouping; it forwards progress updates into the application via MediatR."
+      },
+      {
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+        "layer": "infrastructure",
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+        "typeCount": 0,
+        "purpose": "Provides AI-driven knowledge extraction, semantic search, RAG retrieval and caching; integrates with DB (Postgres/EF), Qdrant (vector DB), Neo4j (graph), and LLM/chat/embedding clients to produce structured KnowledgePackets, grounded answers, and semantic search DTOs."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubReaderService.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__EpubReaderService.cs.json",
+        "role": "service",
+        "layer": "infrastructure",
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+        "purpose": "Service that locates EPUB files recorded in the database, parses a requested chapter, splits the chapter into sanitized content blocks, injects AI-action trigger blocks at thresholds, and returns a ReaderPageViewModel for consumption by the application."
+      },
+      {
+        "path": "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+        "artifactPath": "cache/summaries/NexusReader.Infrastructure__Services__EpubMetadataExtractor.cs.json",
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+        "purpose": "Infrastructure service that reads an EPUB stream to extract title, author, description and cover image for pre-ingestion preview without persisting data."
+      },
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+      },
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+      },
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+        "path": "NexusReader.Application/Commands/Sync/UpdateReadingProgressCommand.cs",
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+        "role": "handler",
+        "layer": "application",
+        "methodCount": 0,
+        "typeCount": 1,
+        "purpose": "Defines a MediatR command DTO used to update/sync a user's reading progress for an ebook across the application."
+      }
+    ],
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+      "id": "web_client_wasm_md",
+      "bagType": "auth",
+      "confidence": 0.75,
+      "anchorFiles": [
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+        "NexusReader.Web.Client/Handlers/AuthenticationHeaderHandler.cs",
+        "NexusReader.Web.Client/Program.cs",
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+        "NexusReader.Web.Client/Services/WasmKnowledgeService.cs",
+        "NexusReader.Web.Client/Services/WebPlatformService.cs",
+        "NexusReader.Web.Client/NexusReader.Web.Client.csproj",
+        "NexusReader.Maui/MauiProgram.cs",
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+        "NexusReader.Infrastructure/Services/EpubMetadataExtractor.cs",
+        "NexusReader.Infrastructure/Services/BookStorageService.cs",
+        "NexusReader.Infrastructure/RealTime/SignalRSyncBroadcaster.cs",
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+      ],
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+              "status": "generated"
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+              "producerPath": "src/documentation/v4/buildContextBags.ts",
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+            }
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+}
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diff --git a/src/.documentation/machine/run-validation.json b/src/.documentation/machine/run-validation.json
new file mode 100644
index 0000000..ce01b91
--- /dev/null
+++ b/src/.documentation/machine/run-validation.json
@@ -0,0 +1,355 @@
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+    },
+    {
+      "id": "document-metadata:domains/maui-mobile.md",
+      "status": "pass",
+      "message": "domains/maui-mobile.md metadata is present."
+    },
+    {
+      "id": "document-validation:domains/maui-mobile.md",
+      "status": "warn",
+      "message": "domains/maui-mobile.md validation artifact is missing."
+    },
+    {
+      "id": "document-output:domains/data-and-persistence.md",
+      "status": "pass",
+      "message": "domains/data-and-persistence.md output is present."
+    },
+    {
+      "id": "document-metadata:domains/data-and-persistence.md",
+      "status": "pass",
+      "message": "domains/data-and-persistence.md metadata is present."
+    },
+    {
+      "id": "document-validation:domains/data-and-persistence.md",
+      "status": "warn",
+      "message": "domains/data-and-persistence.md validation artifact is missing."
+    },
+    {
+      "id": "document-output:flows/realtime-and-sync.md",
+      "status": "pass",
+      "message": "flows/realtime-and-sync.md output is present."
+    },
+    {
+      "id": "document-metadata:flows/realtime-and-sync.md",
+      "status": "pass",
+      "message": "flows/realtime-and-sync.md metadata is present."
+    },
+    {
+      "id": "document-validation:flows/realtime-and-sync.md",
+      "status": "warn",
+      "message": "flows/realtime-and-sync.md validation artifact is missing."
+    },
+    {
+      "id": "document-output:domains/infrastructure-services.md",
+      "status": "pass",
+      "message": "domains/infrastructure-services.md output is present."
+    },
+    {
+      "id": "document-metadata:domains/infrastructure-services.md",
+      "status": "pass",
+      "message": "domains/infrastructure-services.md metadata is present."
+    },
+    {
+      "id": "document-validation:domains/infrastructure-services.md",
+      "status": "warn",
+      "message": "domains/infrastructure-services.md validation artifact is missing."
+    },
+    {
+      "id": "document-output:business/business-overview.md",
+      "status": "pass",
+      "message": "business/business-overview.md output is present."
+    },
+    {
+      "id": "document-metadata:business/business-overview.md",
+      "status": "pass",
+      "message": "business/business-overview.md metadata is present."
+    },
+    {
+      "id": "document-validation:business/business-overview.md",
+      "status": "warn",
+      "message": "business/business-overview.md validation artifact is missing."
+    },
+    {
+      "id": "document-output:business/top-business-flows.md",
+      "status": "pass",
+      "message": "business/top-business-flows.md output is present."
+    },
+    {
+      "id": "document-metadata:business/top-business-flows.md",
+      "status": "pass",
+      "message": "business/top-business-flows.md metadata is present."
+    },
+    {
+      "id": "document-validation:business/top-business-flows.md",
+      "status": "warn",
+      "message": "business/top-business-flows.md validation artifact is missing."
+    }
+  ]
+}
\ No newline at end of file