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 <noreply@anthropic.com>

backend/src/routes/adminEvents.js

@@ -78,8 +78,7 @@ router.post('/', adminAuth, [
       color_theme,
       share_link: shareLink,
       expires_at,
-      created_at: new Date(),
-      updated_at: new Date()
+      created_at: new Date()
     });
     
     // Log activity