Device/tuya bac 002

[robvanoostenrijk]

Refactored BAC-002-AZLB / BAC-003:

• Added device specific setting to indicate if 2-pipe (cooling / fan) or 4-pipe (cooling, heating & fan) mode is configured on the device, adjusting available system_mode options accordingly
• Updated onEvent to onEventSetLocalTime correcting the device day / time as reported in Making BAC-002-ALZB Thermostats Work Flawlessly with Zigbee2MQTT zigbee2mqtt#25718
• Added meta publishDuplicateTransaction: true, as device originated messages are always seqId 1. (This fixes broken device updates (not reflecting) in zigbee2mqtt somewhere recently, possibly version 2.x upgrade?)
• Removed state attribute entirely, as Home Assistant and others use system_mode for climate controls
• Refactored schedule format and parsing logic somewhere more maintainable
• Added max_temperature datapoint from device service menu
• Removed current_cooling_setpoint as it confused downstream systems, though intended to fix Matter integration
• Tidied up DP#2 to use a single meta configuration entry

[Koenkk]

Thanks!