feat (devices): add Meian water leak detector

ACKNOWLEDGEMENTS.md

@@ -1275,3 +1275,4 @@ Further device support has been made with the assistance of users. Please consid
 - [diogolccsilva](https://github.com/diogolccsilva) for contributing support for Beltax BAC-1009 air conditioner.
 - [kong09](https://github.com/kong09) for contributing improvements to thermostat icons.
 - [hrko](https://github.com/hrko) for contributing support for Edison Smart Treo dual zone ceiling light.
+- [akoky](https://github.com/akoky) for assisting with support for Meian SW02 water leak detector.

DEVICES.md

@@ -1329,6 +1329,7 @@ entity types as sub devices.
 - LoraTap QCSC400ZB-V2 curtain switch
 - LoraTap SC500ZB-V2 curtain controller
 - Loratap SS9600ZB 6 button remote control
+- Meian SW02 water leak detector
 - Moes BRT-100-TRV thermostat radiator valve
 - Moes dual dimmer module
 - Moes RGBCW lightbulb