chore: add pre-commit lint hook matching CI

[BigLep]

Summary

• Add .githooks/pre-commit that runs uvx ruff check . and uvx ruff format --check . — the same checks as the CI lint job
• Zero dependencies beyond uvx (already required for development)
• Opt-in with one command: git config core.hooksPath .githooks

Test plan

• Hook runs automatically on commit and catches lint/format issues
• Verified hook passes on clean codebase
• Documented setup in README Getting Started section

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Adds an opt-in Git pre-commit hook under .githooks/ that runs the same Ruff lint/format checks as the CI lint job, and documents enabling it in the repo root README.

Changes:

• Add .githooks/pre-commit to run uvx ruff check . and uvx ruff format --check . on commit.
• Update README.md Getting Started steps to document enabling the hook via git config core.hooksPath .githooks.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
README.md	Documents enabling the repo-local pre-commit hook in Getting Started.
.githooks/pre-commit	New pre-commit hook that runs Ruff lint + formatting checks via uvx.

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[BigLep]

I forgot to request review from you @rjan90 on this. I'm going to get this in because I think ow controversy (opt in) and easy to change. I am clearing out some of the PRs before restructuring the code a bit.

I'm happy to incorporate any feedback after

[rjan90]

I forgot to request review from you @rjan90 on this. I'm going to get this in because I think ow controversy (opt in) and easy to change. I am clearing out some of the PRs before restructuring the code a bit.

No worries, I will take a quick look at it.