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>

src/config/workflows/integrate.ts

@@ -30,7 +30,11 @@ WORKFLOW STEPS
    For each connection found, call createEdge:
    - from_node_id: the focused node ID
    - to_node_id: the connected node ID
-   - context: { explanation: "why this connection matters" }
+   - explanation: "why this connection matters"
+   Direction rule: write the explanation so it reads FROM → TO.
+   Examples:
+   - Insight → Source: "Came from / inspired by"
+   - Episode → Podcast: "Episode of this podcast"
 
    The tool handles duplicates gracefully - if edge exists, it returns an error and you continue.