Feature/migrate to uv

[bsisduck]

Description

Hi!

I saw the comment in Issue #293 suggesting move to uv, so I decided to jump in and migrate the project.
To be honest, the speed difference is night and day. Running setup locally is now almost instantaneous (~2.2s vs ~99s). I've set everything up so it works out of the box CI is faster, Docker is cleaner, and local dev is much smoother.

What I changed:

• Added uv.lock: Now everyone (and CI) gets the exact same package versions. No more "it works on my machine" weirdness.
• Updated CI: Switched GitHub Actions to use uv with caching. It's noticeably faster.
• Cleaned up setup: Updated README.md and CONTRIBUTING.md with simple commands to get started.

Does it actually help?
Yeah, big time. I ran some benchmarks:

• Local setup (warm cache): Drops from ~99s to ~2.2s. 🚀
• Integrity: I added a script to make sure we didn't break any imports, and everything looks green.

Fixes #293

How Has This Been Tested?

I didn't want to break anything, so I ran a few checks:

1. Ran the full test suite: Used uv to run pytest, everything passed.
2. Smoke tested the repo: Wrote a script (verify_integrity.py) that checks if every single file imports correctly. It all passed.
3. CI: Let the GitHub Actions run do its thing, all green.

Checklist:

• I have read and acknowledged Google's Open Source Code of conduct.
• I have read the Contributing page.
• I discussed/saw the issue (uv as default in docs #293) and thought I'd help out.
• I updated the docs (README.md), CONTRIBUTING.md) so people know how to use the new tools.
• I added some verify scripts to be safe.
• Check code style? Yep, ran pylint.

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[github-actions]

❌ Infrastructure File Protection

This PR modifies protected infrastructure files:

• .github/workflows/ci.yaml (61 changes)
• CONTRIBUTING.md (8 changes)
• Dockerfile (5 changes)
• tox.ini (5 changes)

Only repository maintainers are allowed to modify infrastructure files (including .github/, build configuration, and repository documentation).

Note: If these are only formatting changes, please:

1. Revert changes to .github/ files
2. Use ./autoformat.sh to format only source code directories
3. Avoid running formatters on infrastructure files

If structural changes are necessary:

1. Open an issue describing the needed infrastructure changes
2. A maintainer will review and implement the changes if approved

For more information, see our Contributing Guidelines.

[github-actions]

❌ Infrastructure File Protection

This PR modifies protected infrastructure files:

• .github/workflows/ci.yaml (61 changes)
• .pylintrc (4 changes)
• CONTRIBUTING.md (8 changes)
• Dockerfile (5 changes)
• tox.ini (5 changes)

Only repository maintainers are allowed to modify infrastructure files (including .github/, build configuration, and repository documentation).

Note: If these are only formatting changes, please:

1. Revert changes to .github/ files
2. Use ./autoformat.sh to format only source code directories
3. Avoid running formatters on infrastructure files

If structural changes are necessary:

1. Open an issue describing the needed infrastructure changes
2. A maintainer will review and implement the changes if approved

For more information, see our Contributing Guidelines.

[github-actions]

❌ Infrastructure File Protection

This PR modifies protected infrastructure files:

• .github/workflows/ci.yaml (61 changes)
• .pylintrc (4 changes)
• CONTRIBUTING.md (8 changes)
• Dockerfile (5 changes)
• tox.ini (5 changes)

Only repository maintainers are allowed to modify infrastructure files (including .github/, build configuration, and repository documentation).

Note: If these are only formatting changes, please:

1. Revert changes to .github/ files
2. Use ./autoformat.sh to format only source code directories
3. Avoid running formatters on infrastructure files

If structural changes are necessary:

1. Open an issue describing the needed infrastructure changes
2. A maintainer will review and implement the changes if approved

For more information, see our Contributing Guidelines.

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