Remove unsupported Protected argument from Domoticz device creation

[Copilot]

Plugin startup failed during device initialization because Domoticz.Device(...) was called with Protected=1, which is not accepted in this Domoticz runtime (TypeError: 'protected' is an invalid keyword argument).

• Problem scope

  • Startup path failed before API helper devices could be created (API Payload, API Trigger), leaving the plugin in a broken initialization state.

• Code changes

  • Updated device creation calls in:
    • plugin.py
    • plugin_core.py
  • Removed unsupported Protected=1 keyword from both Domoticz.Device(...) calls while preserving all other device metadata (Name, Unit, Type*, DeviceID, Used).

• Behavior impact

  • Plugin initialization now uses only supported Domoticz.Device parameters, allowing device creation to proceed on runtimes that reject protected/Protected.

# Before
Domoticz.Device(..., Used=1, Protected=1).Create()

# After
Domoticz.Device(..., Used=1).Create()