Implements MVP2 of the ElementConfigs system, applying default styles to newly created nodes.
✅ Completed:
- ElementConfigRegistry with singleton pattern
- 5 node configs (Button, Text, Group, TextInput, Image)
- 28 total style variants defined
- Integration in router.tsx for app startup
- Unit tests for registry
✅ Validated:
- Button node: 100% defaults applied correctly
- Text node: Partial defaults applied (fontSize, color work)
- System initializes successfully at startup
⚠️ Known Issues:
- Text lineHeight and fontWeight not fully applied (likely interaction with legacy text style system)
- Requires cache clear (npm run clean:all) for changes to take effect
📝 Documentation:
- MVP2 validation report with test results
- Detailed changelog of implementation steps
🚀 Next: MVP3 will add variant selector UI in Property Panel
Ref: STYLE-002 Phase 9