- Add QR code toggle for HTTPS/Custom Scheme links
- Add Universal Links (iOS) and App Links (Android) support
- Create deep link route handler with platform detection
- Add .well-known files for domain verification
- Fix Content-Type headers for apple-app-site-association
- Add environment configuration for staging & production
- Add comprehensive testing documentation
Testing:
- QR scan → Safari → App switch working ✅
- Platform detection working ✅
- Auto redirect to custom scheme working ✅
- Web fallback JSON response working ✅
### No Issue