Generate and display worker names, add docker image healthchecks

[mini-bomba]

Contents of this PR:

• .idea directory ignored (pycharm files)
• generate & display worker names
  • worker names are in the format of {hostname}-{4 random hex digits}
  • worker names are now displayed in /api/v1/status
• add healthchecks for docker images
  • those are simple curl -f commands that fetch the status endpoints of containers (requires default port numbers)
  • also edited EXPOSE commands to use default port numbers from config.yaml.example
• enabled pycodestyle warnings in ruff
  • mostly whitespace control - no whitespace allowed on empty lines, just like in SponsorBlockServer

[ajayyy]

add healthchecks for docker images

I have healthchecks already set up with k8s. Will have to look into if these will conflict

https://github.com/ajayyy/k8s-thumbnail-cache/blob/9a33502db8a847b521be054e0e9f86528117be46/thumbnail-cache/server.yaml#L26-L37