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/config/api.ts

@@ -7,7 +7,7 @@ export const GALLERY_TOKEN_KEY = 'gallery_token';
 
 // Create axios instance
 export const api = axios.create({
-  baseURL: import.meta.env.VITE_API_URL || 'http://localhost:3001',
+  baseURL: import.meta.env.VITE_API_URL || 'http://localhost:3002',
   headers: {
     'Content-Type': 'application/json',
   },