Implement complete frontend with admin panel and theme system

- Add admin authentication and dashboard
- Create event management pages (list, create, edit, archive)
- Implement gallery enhancements (search, sorting, bulk download)
- Add email configuration and archive management pages
- Integrate Umami analytics with tracking throughout the app
- Add comprehensive error boundaries and loading states
- Implement accessibility features (WCAG 2.1 AA compliance)
- Create theme system with preset themes and customization
- Add branding settings and company information management
- Fix backend database initialization and health check
- Configure proper API URLs and environment variables

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

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

backend/src/routes/admin.js

@@ -0,0 +1,12 @@
+const express = require('express');
+const router = express.Router();
+
+// This route handles admin endpoints that are different from events
+// For now, just export an empty router as events.js handles most admin functionality
+
+// Admin dashboard data could go here
+router.get('/dashboard', async (req, res) => {
+  res.json({ message: 'Admin dashboard endpoint' });
+});
+
+module.exports = router;