* add work_area cutting_height
* add
* add default work_area
* ruff/mypy
* better names
* fit to api bump
* tweaks
* more tweaks
* layout
* address review
* change entity name
* tweak test
* cleanup entities
* fix for mowers with no workareas
* assure not other entities get deleted
* sort & remove one callback
* remove typing callbacks
* rename entity to entity_entry