feat: implement KM-RAG methodology artifacts and core architectural standards with supporting query and service updates

src/NexusReader.Application/Commands/AI/VerifyGroundednessCommand.cs

@@ -1,7 +1,6 @@
 using FluentResults;
 using MediatR;
 using Microsoft.Extensions.AI;
-using NexusReader.Infrastructure.Services; // For PromptRegistry
 
 namespace NexusReader.Application.Commands.AI;
 

src/NexusReader.Application/Queries/Graph/GetKnowledgeGraphQueryHandler.cs

@@ -28,15 +28,10 @@ internal sealed class GetKnowledgeGraphQueryHandler : IQueryHandler<GetKnowledge
         if (graph is null)
             return Result.Ok(new GraphDataDto());
 
-        var nodes = graph.Nodes
-            .Select(n => new GraphNodeDto(n.Id, n.Label, n.Group))
-            .ToList();
-
-        var links = graph.Links
-            .Select(l => new GraphLinkDto(l.Source, l.Target, l.Value))
-            .ToList();
-
-        return Result.Ok(new GraphDataDto { Nodes = nodes, Links = links });
+        if (graph is null)
+            return Result.Ok(new GraphDataDto());
+            
+        return Result.Ok(graph);
     }
 }
 

src/NexusReader.Application/Queries/Library/SearchLibrarySemanticallyQuery.cs

@@ -6,6 +6,7 @@ using Microsoft.Extensions.AI;
 using NexusReader.Application.DTOs.AI;
 using NexusReader.Application.Abstractions.Persistence;
 using Pgvector.EntityFrameworkCore;
+using System.Text.Json;
 
 namespace NexusReader.Application.Queries.Library;
 
@@ -88,7 +89,7 @@ public class SearchLibrarySemanticallyQueryHandler : IRequestHandler<SearchLibra
                     RelevanceScore = (float)(1 - c.Vector!.CosineDistance(queryVector)),
                     Metadata = string.IsNullOrEmpty(c.MetadataJson) 
                         ? null 
-                        : System.Text.Json.JsonSerializer.Deserialize<Dictionary<string, object>>(c.MetadataJson)
+                        : JsonSerializer.Deserialize<Dictionary<string, object>>(c.MetadataJson)
                 };
 
                 // Enrich snippet with definitions if present

src/NexusReader.Web.Client/Services/WasmKnowledgeService.cs

@@ -24,6 +24,11 @@ public class WasmKnowledgeService : IKnowledgeService
         return await CallKnowledgeApiAsync("/api/knowledge/graph", text, cancellationToken);
     }
 
+    public async Task<Result<KnowledgePacket>> GetKnowledgeMapAsync(string text, CancellationToken cancellationToken = default)
+    {
+        return await CallKnowledgeApiAsync("/api/knowledge/map", text, cancellationToken);
+    }
+
     public async Task<Result<KnowledgePacket>> GetSummaryAndQuizAsync(string text, CancellationToken cancellationToken = default)
     {
         return await CallKnowledgeApiAsync("/api/knowledge/summary", text, cancellationToken);