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 <[email protected]>

frontend/src/services/events.service.ts

@@ -11,6 +11,8 @@ interface CreateEventData {
   welcome_message?: string;
   color_theme?: string;
   expiration_days: number;
+  allow_user_uploads?: boolean;
+  upload_category_id?: number | null;
 }
 
 interface UpdateEventData {
@@ -23,6 +25,8 @@ interface UpdateEventData {
   color_theme?: string;
   expires_at?: string;
   is_active?: boolean;
+  allow_user_uploads?: boolean;
+  upload_category_id?: number | null;
 }
 
 interface EventsListResponse {

frontend/src/services/settings.service.ts

@@ -36,6 +36,46 @@ export interface StorageInfo {
   storage_limit: number;
 }
 
+export interface SystemStatus {
+  database: {
+    size: number;
+    tables: {
+      events: number;
+      photos: number;
+      admins: number;
+      categories: number;
+      activityLogs: number;
+    };
+  };
+  emailQueue: {
+    pending: number;
+    sent: number;
+    failed: number;
+  };
+  system: {
+    platform: string;
+    arch: string;
+    hostname: string;
+    uptime: number;
+    nodeVersion: string;
+    memory: {
+      total: number;
+      free: number;
+      used: number;
+    };
+    cpu: {
+      model: string;
+      cores: number;
+    };
+  };
+  services: {
+    fileWatcher: { status: string };
+    expirationChecker: { status: string };
+    emailProcessor: { status: string };
+  };
+  timestamp: string;
+}
+
 export const settingsService = {
   // Get all settings
   async getAllSettings(): Promise<Record<string, any>> {
@@ -124,6 +164,12 @@ export const settingsService = {
     return response.data;
   },
 
+  // Get system status
+  async getSystemStatus(): Promise<SystemStatus> {
+    const response = await api.get<SystemStatus>('/api/admin/system/status');
+    return response.data;
+  },
+
   // Format branding settings from raw data
   formatBrandingSettings(rawSettings: Record<string, any>): BrandingSettings {
     return {