🎨 New Features:
- Added QR code preview section in statistics page
- Integrated PNG and SVG download buttons
- Responsive design for mobile devices
- Automatic QR code loading for the current page
🔧 Technical Details:
- Added QR preview container with loading states
- Implemented downloadQRCode() function for both formats
- Enhanced mobile responsiveness for QR preview section
- Connected to existing /api/download endpoints
📱 UI Improvements:
- Clean preview with bordered QR code image
- Intuitive download buttons with icons
- Loading indicator while fetching QR code
- Error handling for missing QR codes
This completes the admin statistics dashboard with full QR code management capabilities.
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