feat(ai-ux): deduplicate AI queries, handle ServiceUnavailable retries, and optimize reader canvas graph prerendering (#44)

This Pull Request encapsulates all outstanding AI, Blazor InteractiveAuto lifecycle, pgvector, and Firefox authorization/session compatibility fixes.

### Key Accomplishments:
1. **Concurrent Request Deduplication (Option B):** Implemented a thread-safe active task registry in `KnowledgeService` that groups concurrent graph extraction queries for the same content, preventing duplicate AI calls completely.
2. **Resilience Strategy for Downstream Demands:** Extended the `ai-retry` resilience pipeline to automatically intercept and retry on temporary Google API `503 ServiceUnavailable` / `high demand` spikes.
3. **Interactive Graph Generation Guard (Option A):** Prevented server-side prerender-phase graph requests in the reader canvas component.
4. **Firefox Compatibility & Cookie Handler:** Implemented an authentication endpoint and hybrid hidden-form submission flow to solve login, registration, and logout redirections and cookies securely.
5. **Autoscrolling & Graph Exclusions:** Added concept-to-block smooth scrolling, active block badging, and filtered out markdown code blocks from being extracted as nodes.

All unit tests compiled and passed 100% cleanly.

---------

Co-authored-by: Marek Jasiński <jasins.marek@gmail.com>
Reviewed-on: #44
Co-authored-by: Antigravity <antigravity@google.com>
Co-committed-by: Antigravity <antigravity@google.com>
This commit was merged in pull request #44.
This commit is contained in:
2026-05-18 17:53:36 +00:00
committed by Marek Jaisński
parent f808734768
commit 541e9e1fb5
42 changed files with 2351 additions and 155 deletions
@@ -94,8 +94,8 @@
var loginResult = await IdentityService.LoginAsync(_registerModel.Email, _registerModel.Password);
if (loginResult.IsSuccess)
{
// Trigger hidden form submission to perform cookie-based sign-in
await JS.InvokeVoidAsync("eval", "document.getElementById('nexusLoginForm').submit()");
// Trigger hidden form submission via robust JS helper to perform cookie-based sign-in
await JS.InvokeVoidAsync("nexusAuth.submitLoginForm", "nexusLoginForm", _registerModel.Email, _registerModel.Password, false);
}
else
{