sync: Idea Genealogy + Quick Capture Overhaul

From private repo:

Idea Genealogy:
- Required edge explanations across UI/tools/API/MCP
- Inferred edge schema (category/type/confidence)
- Added part_of relationship type
- Connection UI chips (Made by / Part of / Came from / Related)

Quick Capture Overhaul:
- Jina.ai fallback for JS-rendered sites (Twitter, SPAs)
- Simplified UI: removed mode buttons, auto-detect input type
- Renamed to "Add Stuff", moved to top-right
- Auto-edge creation from description entities
- Increased content summary length (500→1500 chars)

Description Generation Fix:
- Simplified prompt to "what is this"
- Added link/dimensions context
- Better creator attribution

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/api/nodes/route.ts

@@ -5,6 +5,7 @@ import { autoEmbedQueue } from '@/services/embedding/autoEmbedQueue';
 import { hasSufficientContent } from '@/services/embedding/constants';
 import { DimensionService } from '@/services/database/dimensionService';
 import { generateDescription } from '@/services/database/descriptionService';
+import { scheduleAutoEdgeCreation } from '@/services/agents/autoEdge';
 
 export const runtime = 'nodejs';
 
@@ -126,6 +127,11 @@ export async function POST(request: NextRequest) {
       autoEmbedQueue.enqueue(node.id, { reason: 'node_created' });
     }
 
+    // Schedule auto-edge creation (fire-and-forget, non-blocking)
+    if (node.id) {
+      scheduleAutoEdgeCreation(node.id);
+    }
+
     return NextResponse.json({
       success: true,
       data: node,