Add pyright + __status__ endpoint

[Peddle]

What is this?

Adds pyright to cicd + updates existing code to pass pyright. Also adds status endpoint

Why?

improved code quality / readability / reduces bugs in future.

status endpoint is a handy healthcheck and can be extended with GPU status in future

How did you test it works without regressions?

Follow on PR to add unit testing + integration tests (should block master release on this). For now simple manual tests seem to pass

If this is a new feature what may a critical error look like?

Things to consider to not repeat mistakes we've learned from many times

• [ ] If critical errors fire do we ping team in some obvious way (e.g., slack)?
• [ ] Are there debug logs + a way to see these logs if we need to debug?
• [ ] Is this documented enough a dev could work on this code without getting stuck or having to ping you?

[ErikKaum]

All in all really legit 🔥

• one note on making the Exception have an error message (not blocking but suggesting)
• when the status endpoint is called on banana infra, it allocates a GPU & bills for it (more just checking that you're aware of this)
• really nice with pyright 💪
• NOTE: remember to bump version before you deploy