Big list of cleanups:

• Switch to uv, as airflow finally fixed the bug that was breaking installation.
• Use python 3.12 instead of 3.10.
• Rename package from ot_orchestration to orchestration.
• Add lint rules and lint files with them.
• Add vscode settings and extension recommendations.
• Clean yaml files, gitignore, dockerfile, compose file, makefile.
• Refactored PR github action to use uv.
• Removed beautysh from pre-commit, it seems abandoned and works badly without setuptools.

This PR should also be rebased on top of dev, without squashing the commits (and without a merge commit either!).