* Add fault sensor to balboa
* Use an event instead of sensor for faults
* Don't set fault initially in conftest
* Use event type per fault message code
* Set fault to None in conftest
* Add temperature range switch (high/low) to Balboa spa integration.
* Change Balboa spa integration temperature range control from switch to select
* Balboa spa integration: Fix ruff formatting
* Balboa spa integration: increase test coverage
* Balboa spa integration review fixes: Move instance attributes as class attributes. Fix code comments.
