QR encoder (feature-gated behind `qr`):
- Pure-Rust QR code encoder with GF(2^8) Reed-Solomon
- SVG and ASCII renderers
- Version 1-5 support, byte mode, EC level M
- Example: qr_seed_encode
PWA loader:
- Browser-based RVF seed decoder (HTML/JS/CSS)
- Service worker for offline support
- Camera QR scanner via getUserMedia
no_std fixes:
- quality.rs test alloc import cleanup
- Cargo.toml feature gate for qr encoder
https://claude.ai/code/session_01RnwD4x5cbpB7FPvoyYQz8G
