sync: Phase 3 Agent Features from private repo

Features synced:
- LucideIconPicker component (115 icons for dimension customization)
- Dimension editing modal (descriptions + icons)
- Compound filters (per-column AND filters)
- Improved dimension assignment with keyword tagging
- queryDimensions and getDimension agent tools

New files:
- src/components/common/LucideIconPicker.tsx
- src/tools/database/queryDimensions.ts
- src/tools/database/getDimension.ts

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

app/api/nodes/route.ts

@@ -66,15 +66,20 @@ export async function POST(request: NextRequest) {
       .filter(Boolean)
       .slice(0, 5);
 
-    // Auto-assign locked dimensions for all new nodes
-    const autoAssignedDimensions = await DimensionService.assignLockedDimensions({
+    // Auto-assign locked dimensions + keyword dimensions for all new nodes
+    const { locked, keywords } = await DimensionService.assignDimensions({
       title: body.title,
       content: rawContent || undefined,
       link: body.link
     });
 
-    // Combine provided and auto-assigned dimensions, remove duplicates
-    const finalDimensions = [...new Set([...trimmedProvidedDimensions, ...autoAssignedDimensions])]
+    // Ensure keyword dimensions exist in the database (create if new)
+    for (const keyword of keywords) {
+      await DimensionService.ensureKeywordDimension(keyword);
+    }
+
+    // Combine provided, locked, and keyword dimensions, remove duplicates
+    const finalDimensions = [...new Set([...trimmedProvidedDimensions, ...locked, ...keywords])]
       .slice(0, 5); // Ensure we don't exceed 5 total dimensions
     const rawChunk = typeof body.chunk === 'string' ? body.chunk : null;
     let chunkToStore = rawChunk;