**Problem:**
Configurator was broken in offline mode - no component search
and no price calculation because /api/components returned empty list.
**Solution:**
Added local component fallback to ComponentHandler:
1. **ComponentHandler with localDB** (component.go)
- Added localDB parameter to NewComponentHandler
- List() now fallbacks to local_components when offline
- Converts LocalComponent to ComponentView format
- Preserves prices from local cache
2. **Updated initialization** (main.go)
- Pass localDB to NewComponentHandler
**Impact:**
- ✅ Component search works offline
- ✅ Prices load from local_components table
- ✅ Configuration creation fully functional offline
- ✅ Price calculation works with cached prices
**Testing:**
- Verified /api/components returns local components
- Verified current_price field populated from cache
- Search, filtering, and pagination work correctly
Fixes critical Phase 2.5 offline mode issue.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>