cwtchhome

This PR improves and extends Tuya TS0601 multi-gang switch support, fixing the existing two-gang implementation and adding proper support for three-gang and four-gang variants with backlight and LED indicator control....

[TS0601 / _TZE284_zpvusbtv] State not updating in Home Assistant via MQTT despite correct payload from Zigbee2MQTT (Tuya Two Gang Switch)

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### What happened? When using a Tuya “Two gang switch” integrated via Zigbee2MQTT, the physical state (ON/OFF) of the lights updates correctly in Zigbee2MQTT logs and dashboard, but Home Assistant...