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 <[email protected]>

frontend/src/pages/GalleryPage.tsx

@@ -7,6 +7,7 @@ import { Card, CardContent, Input, Button, Loading } from '../components/common'
 import { useGalleryAuth } from '../contexts';
 import { useGalleryInfo } from '../hooks/useGallery';
 import { GalleryView } from '../components/gallery/GalleryView';
+import { analyticsService } from '../services/analytics.service';
 
 export const GalleryPage: React.FC = () => {
   const { slug } = useParams<{ slug: string }>();
@@ -34,8 +35,20 @@ export const GalleryPage: React.FC = () => {
       setIsLoggingIn(true);
       setLoginError(null);
       await login(slug!, password);
+      
+      // Track successful password entry
+      analyticsService.trackGalleryEvent('password_entry', {
+        gallery: slug,
+        success: true
+      });
     } catch (error: any) {
       setLoginError(error.response?.data?.error || 'Invalid password');
+      
+      // Track failed password entry
+      analyticsService.trackGalleryEvent('password_entry', {
+        gallery: slug,
+        success: false
+      });
     } finally {
       setIsLoggingIn(false);
     }