* 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.
Toni Korhonen
Sebastian Noack
Sebastian Noack
Joost Lekkerkerker