Fix React error #130 and backend event creation

Frontend fixes:
- Disable verbatimModuleSyntax in TypeScript config to fix module imports
- Add displayName to critical React components for better production debugging
- Configure Vite build with manual chunks for better code splitting
- Enable sourcemaps for production debugging

Backend fixes:
- Remove updated_at field from events table insert (column doesn't exist)
- Fix SQL error that was causing 500 errors on event creation

These changes resolve:
- React error #130 that occurred during login and event creation
- 500 Internal Server Error when creating new events
- Better error tracking in production builds

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

Co-Authored-By: Claude <[email protected]>

frontend/tsconfig.app.json

@@ -10,7 +10,7 @@
     /* Bundler mode */
     "moduleResolution": "bundler",
     "allowImportingTsExtensions": true,
-    "verbatimModuleSyntax": true,
+    "verbatimModuleSyntax": false,
     "moduleDetection": "force",
     "noEmit": true,
     "jsx": "react-jsx",