Reduce AGNOS system image size to <1GB

[adeebshihadeh]

Convenience things, like valgrind, should be the last to go. First up is anything we're just wasting space on, like package caches or AGNOS build-time dependencies.

If we have to start cutting these things, I think we'll want to setup an "AGNOS dev" package that will install all those extras together.

batman:output$ du -hs system.img
4.3G    system.img

scripts/check_space.sh is a nice tool for debugging this and will allow you to poke around like this:

[jyoung8607]

Not requesting a lock, that's an idea free for anyone's use.

[andiradulescu]

Activated strictatime on my C3 and works nice, but it's more like a fine tuning approach, which I'll do after I clean stuff like this:

debs folder in site-packages... 🤯 (most likely because of an uv bug)

After fixing the above, I will clean pyproject.toml to be similar to openpilot's pyproject.toml.

I will submit separate PRs.