✅ User Favorites Integration:
- Added loadFavoritedCards() function to fetch user's favorited cards on page load
- Favorites now properly display across page refreshes
- Authentication headers included for favorites API calls
🔧 Bulk Actions Implementation:
- Implemented handleBulkMarkAsOwned() with proper API calls
- Implemented handleBulkRemoveFromOwned() with ownership removal
- Added authentication checks and error handling
- Success/failure feedback with clear user messaging
- Auto-clear selection after successful operations
🛡️ Authentication Enhancements:
- All user-specific operations now require valid JWT tokens
- Graceful handling when user is not authenticated
- Proper error messaging for auth failures
- Individual card actions properly connected to bulk handlers
🎯 User Experience Improvements:
- Real-time favorite state management
- Bulk operations provide detailed success feedback
- Error handling with user-friendly messages
- Selection clearing after successful operations
The cards page now properly integrates with the secured API system and provides full user-specific functionality! 🃏✨
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