Initial release.
Home Assistant integration for Bluetooth "cat" thermal printers speaking the 51 78 protocol (GB01/GB02/GB03, GT01, X5/X6/X7 and rebrands), over the HA Bluetooth stack including ESPHome proxies.
Confirmed: X6h (firmware 3.0.5D). 125 models in the profile table; see the README for the untested and not-supported lists.
catprinter.print— imagespec payload,mode(image/text),density1–7, rawenergy/speed,feed,copies,previewcatprinter.feed- Entities: battery, status, conditions, print duration, connection/printing, out-of-paper/cover/overheating/low-battery/charging, last-print image
- Bluetooth discovery with manual address+model fallback; en/ko translations