Add support for SONOFF SNZB-02LD Temperature/Humidity Sensor

[airwolf11597]

GitHub Issue 1: SONOFF SNZB-02LD Temperature Sensor
Title
Add support for SONOFF SNZB-02LD Temperature/Humidity Sensor
Description
The SONOFF SNZB-02LD temperature and humidity sensor is currently not supported by the eWeLink Homebridge plugin.
Device Information

Model: SNZB-02LD
Manufacturer: SONOFF
Device Type: Zigbee Temperature/Humidity Sensor
Firmware Version: 1.1.0

Device Configuration
json[7033] {
"bindInfos": {
"scene": 3
},
"subDevId": "ffffbaf60438c1a47033",
"parentid": "100270929e",
"fwVersion": "1.1.0",
"battery": 100,
"supportPowConfig": 1,
"trigTime": "1761310540000",
"temperature": "18.4",
"temperatureF": "65.1",
"tempCorrection": "0.0",
"tempUnit": 0,
"subDevRssi": -69,
"subDeviceManufacturer": "SONOFF",
"subDevRssiSetting": {
"active": 60,
"duration": 5
}
}
Features Detected

Temperature monitoring (Celsius and Fahrenheit)
Temperature correction/calibration support
Battery level reporting
RSSI signal strength monitoring
Power configuration support

Expected Behavior
The device should appear in HomeKit as a temperature sensor with:

Current temperature reading
Battery level
Optional humidity sensor (if supported by hardware)