feat: Add comprehensive system enhancements

- Add version display above storage consumption in admin sidebar
- Fix storage consumption to stick to bottom of window using flexbox
- Add user upload settings to events (allow uploads, category selection)
- Enhance disk space tab to comprehensive system status view
- Add localized date formatting for German/English language support
- Remove quick actions from dashboard for cleaner interface
- Create user photo upload functionality for galleries
- Add database migration for user upload settings
- Update all TypeScript types and interfaces

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

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

frontend/src/i18n/locales/en.json

@@ -40,7 +40,8 @@
     "uploading": "Uploading...",
     "uploadComplete": "Upload complete!",
     "uploadFailed": "Upload failed",
-    "someFilesFailed": "Some files failed to upload"
+    "someFilesFailed": "Some files failed to upload",
+    "uploadPhotos": "Upload Photos"
   },
   "navigation": {
     "dashboard": "Dashboard",
@@ -227,6 +228,13 @@
     "galleryExpiresIn": "Gallery Expires In",
     "galleryWillExpireOn": "Gallery will expire on {{date}}",
     "expirationWarning": "Guests will receive a warning email 7 days before expiration.",
+    "userUploads": "User Upload Settings",
+    "allowUserUploads": "Allow guests to upload photos",
+    "allowUserUploadsHelp": "Enable guests to upload their own photos to this gallery",
+    "uploadCategory": "Upload Category",
+    "selectCategory": "Select a category for user uploads",
+    "uploadCategoryHelp": "All user-uploaded photos will be added to this category",
+    "userUploadWarning": "User uploads will be moderated and can be removed by admins at any time.",
     "processingRequest": "Processing your request...",
     "eventTypeWedding": "Wedding",
     "eventTypeBirthday": "Birthday",
@@ -362,6 +370,33 @@
       "title": "Categories",
       "about": "About Photo Categories",
       "aboutText": "Global categories are available for all events. You can also create event-specific categories when editing individual events. Categories help organize photos and allow guests to filter photos by type in the gallery view."
+    },
+    "systemStatus": {
+      "title": "System Status",
+      "storageOverview": "Storage Overview",
+      "systemInfo": "System Information",
+      "databaseInfo": "Database Information",
+      "platform": "Platform",
+      "nodeVersion": "Node Version",
+      "uptime": "Uptime",
+      "cpuCores": "CPU Cores",
+      "memoryUsage": "Memory Usage",
+      "memoryUsed": "Memory Used",
+      "photos": "Photos",
+      "admins": "Admins",
+      "dbSize": "Database Size",
+      "services": "Background Services",
+      "fileWatcher": "File Watcher",
+      "fileWatcherDesc": "Monitors for new photos",
+      "expirationChecker": "Expiration Checker",
+      "expirationCheckerDesc": "Archives expired galleries",
+      "emailProcessor": "Email Processor",
+      "emailProcessorDesc": "Sends queued emails",
+      "emailQueue": "Email Queue Status",
+      "pending": "Pending",
+      "sent": "Sent",
+      "failed": "Failed",
+      "lastUpdate": "Last update"
     }
   },
   "analytics": {
@@ -467,6 +502,7 @@
     "storageUsed": "Storage Used",
     "totalPhotos": "Total Photos",
     "storagePercent": "{{percent}}% of {{limit}}",
+    "version": "Version",
     "notifications": "Notifications",
     "viewAllNotifications": "View all notifications",
     "noNotifications": "No new notifications",