Enhanced WSDC registration flow with auto-lookup and account validation:
Backend changes:
- Add accountExists flag to WSDC lookup endpoint
- Check database for existing users with WSDC ID
- Fix Prisma binary target for Alpine Linux Docker containers
Frontend changes:
- Auto-lookup WSDC data after entering 4+ digits (500ms debounce)
- Show live preview dropdown with dancer information
- Display warning if account with WSDC ID already exists
- Block registration and suggest login for existing accounts
- Improve UX with real-time validation feedback
- Add CheckCircle, XCircle, AlertCircle icons for visual feedback
This prevents duplicate WSDC ID registrations and provides immediate
feedback to users, improving the registration experience.
Tested with:
- ID 26111 (Vince Yap) - new account allowed
- ID 26997 (Radoslaw) - existing account blocked
46224fca79