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

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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:
Antigravity
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
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src/NexusReader.UI.Shared/Services/KnowledgeCoordinator.cs
+28 -2
View File
@@ -43,8 +43,34 @@ public sealed partial class KnowledgeCoordinator : IDisposable
private async Task HandleNodeSelected(string nodeId)
{
await _interactionService.RequestScrollToBlock(nodeId);
await _interactionService.RequestHighlightBlock(nodeId);
string? targetBlockId = nodeId;
var graph = _graphService.CurrentGraphData;
if (graph != null)
{
var selectedNode = graph.Nodes.FirstOrDefault(n => n.Id == nodeId);
if (selectedNode != null && selectedNode.Group == "concept")
{
// Look for connected block nodes (group: "current") in the links
var connectedLinks = graph.Links.Where(l => l.Source == nodeId || l.Target == nodeId).ToList();
foreach (var link in connectedLinks)
{
var otherId = link.Source == nodeId ? link.Target : link.Source;
var otherNode = graph.Nodes.FirstOrDefault(n => n.Id == otherId);
if (otherNode != null && otherNode.Group == "current")
{
targetBlockId = otherId;
break;
}
}
}
}
if (!string.IsNullOrEmpty(targetBlockId))
{
await _interactionService.RequestScrollToBlock(targetBlockId);
await _interactionService.RequestHighlightBlock(targetBlockId);
}
}
public async Task ProcessFullPageAsync(string fullContent, string tenantId = "global")