- Add generate_service_order_ticket() in thermal_printer.py with ESC/POS commands for 58mm and 80mm printers.
- Add POST /pos/api/service-orders/:id/print endpoint returning raw bytes or JSON for browser rendering.
- Extend printer.js with printServiceOrder() using WebUSB/Web Serial.
- Add Imprimir orden button in workshop.js detail modal.
- Update FASES_IMPLEMENTADAS.md.