* avoid executing external tools by using Python's built-in os module to interact with the filesystem directly
* Refactor recording cleanup script to use os module instead of subprocess
* black format util.py
* Ooooops
* Refactor get_cpu_stats() to properly identify recording process
* Move recordings management to own process and ensure db multiprocess access
* remove reference to old threads
* Cleanup directory remover
* Mypy fixes
* Fix mypy
* Add support back for setting record via MQTT and WS
* Formatting
* Fix rebase issue