Add extra support for Scneider Electric S520619

[dvandonkelaar]

The Scneider Electric WWiser Odace Smart thermostat (with model S520619) supports cooling, which is not fully implemented in the converters.

The state as reported by Z2M:

{
    "keypad_lockout": "unlock",
    "last_seen": "2025-09-30T22:21:52+02:00",
    "linkquality": 80,
    "local_temperature": 18.16,
    "occupancy": true,
    "occupied_cooling_setpoint": 20,
    "occupied_heating_setpoint": 15,
    "pi_cooling_demand": 0,
    "pi_heating_demand": 0,
    "running_state": "idle",
    "schneider_pilot_mode": "contactor",
    "system_mode": "heat",
    "temperature_display_mode": "celsius",
    "temperature": null
}

As seen, pi_cooling_demand and running_state are reported. This code adds the functionality for reporting this info to the Z2M frontend.
Unfortunately, testing this fix wasn't possible since my external_converters/converter.mjs was ignored (maybe this is related to Koenkk/zigbee2mqtt#28775).

Please let me know if I need to test this (and how I could test this).

[Koenkk]

Thanks!

[dvandonkelaar]

You're welcome!
Tested with the dev branch (Home Assistant Z2M Edge Add-on) and all properties are working correctly.