Adds configurable buzzer control so the printer alerts kitchen staff
on each new ticket print.
Backend:
- printer_service.py: ESC 0x07 beep command fired before paper cut,
reads print.beep_on_ticket / print.beep_pattern settings; supports
single/double/triple/long presets and a custom:n1:n2:n3 format
- settings.py: registers the two new print.beep_* settings with
defaults (beep_on_ticket=true, beep_pattern=double)
- system.py: POST /api/system/printers/test-beep endpoint for
live testing from the dashboard
Frontend (PrintFontsTab):
- BeepSection component with preset grid, custom n1/n2/n3 inputs,
and a live test-beep button targeting any configured printer
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
bonamin
607e78ea82