* Fixes#26405 Return None if light state is off since attribute is unavailable, prevents property from being reported with invalid value of 0.
* Update Test to check property is not reported when light state is off.
* Return None for AlexaThermostatController and AlexaTemperatureSensor properties if climate state is unavailable. Preserves raising an error for UnsupportedProperty, and allows Alexa.EndpointHealth to handle the unavailable state.
* Added additional tests for climate state reporting.
