- Click layer to toggle visibility and redraw canvas
- Click ▲/▼ buttons to reorder layers (z-index)
- Active layer highlighted with left red border
- Each layer now actually renders: bg/white, border/frame, pattern/suit symbol, text/corner labels
- Fix fabric.js imports (Canvas, FabricText, Rect)
- Fix router import path in main.js
- Handle Django REST Framework pagination format in API calls
- Add getTemplates function to project API
- Restart frontend development server