Fix multiple production issues and add password change functionality

- Fixed frontend API URL configuration to use correct port 3002
- Fixed create event functionality by adding proper endpoint and fixing JSON parsing
- Fixed email settings save functionality by importing logActivity correctly
- Fixed admin settings save functionality by using api client instead of direct fetch
- Implemented password change functionality with modal and backend endpoint
- Added updated_at column to admin_users table
- Fixed all mock data issues - now using real backend data throughout

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

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

frontend/src/services/admin.service.ts

@@ -91,5 +91,10 @@ export const adminService = {
     const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB'];
     const i = Math.floor(Math.log(bytes) / Math.log(k));
     return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
+  },
+
+  // Change password
+  async changePassword(data: { currentPassword: string; newPassword: string }): Promise<void> {
+    await api.post('/api/admin/auth/change-password', data);
   }
 };

frontend/src/services/events.service.ts

@@ -10,10 +10,15 @@ interface CreateEventData {
   password: string;
   welcome_message?: string;
   color_theme?: string;
-  expires_at: string;
+  expiration_days: number;
 }
 
 interface UpdateEventData {
+  event_name?: string;
+  event_date?: string;
+  host_email?: string;
+  admin_email?: string;
+  password?: string;
   welcome_message?: string;
   color_theme?: string;
   expires_at?: string;
@@ -61,13 +66,13 @@ export const eventsService = {
 
   // Update event (admin)
   async updateEvent(id: number, data: UpdateEventData): Promise<Event> {
-    const response = await api.patch<Event>(`/api/admin/events/${id}`, data);
+    const response = await api.put<Event>(`/api/events/${id}`, data);
     return response.data;
   },
 
   // Delete/deactivate event (admin)
   async deleteEvent(id: number): Promise<void> {
-    await api.delete(`/api/admin/events/${id}`);
+    await api.delete(`/api/events/${id}`);
   },
 
   // Force archive event (admin)
@@ -76,9 +81,9 @@ export const eventsService = {
   },
 
   // Extend event expiration (admin)
-  async extendExpiration(id: number, newExpiryDate: string): Promise<Event> {
-    const response = await api.patch<Event>(`/api/admin/events/${id}`, {
-      expires_at: newExpiryDate,
+  async extendExpiration(id: number, days: number): Promise<Event> {
+    const response = await api.post<Event>(`/api/events/${id}/extend`, {
+      days,
     });
     return response.data;
   },