- Stubbed usb_windows module (printing needs native Windows build)
- Added Tauri commands: detectar/configurar/imprimir_recibo/teste_impressora
- Fixed tipo annotation and concat type mismatch
- Removed windows-sys dependency (unstable API)
Windows .exe available via GitHub Actions CI
- Storage: SQLite local via rusqlite
- Supabase: REST API via reqwest
- Printer: USB ESC/POS for TM-T20
- Frontend: vanilla HTML (form-v9.3 ported)
- Build: GitHub Actions for Linux/Windows/macOS
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