fix git tests

[nornagon-openai]

the git tests were failing on my local machine due to gpg signing config in my ~/.gitconfig. tests should not be affected by ~/.gitconfig, so configure them to ignore it.

[github-actions]

Summary

Adds an async git_info helper that collects commit/branch/remote data with a 5-second timeout and comprehensive unit tests.
Also reorders several Cargo.toml sections, removes leftover VS Code config/label files, and introduces two new end-to-end tests for apply and CLI stream behaviour.

Review

Nice cleanup and much-needed test coverage! A few nits before merge:

• The PR description doesn’t spell out the problem these changes solve (flaky git commands + missing coverage). Consider adding a short “why” paragraph.
• create_test_git_repo now exists in two test modules—maybe move it to a shared test util to avoid duplication.
• git_info.rs is currently unused; flag where it will be integrated (or land that hookup in the same PR).
• VS Code/label file deletions are orthogonal; worth splitting out next time to keep each PR single-purpose.
• Quick run of cargo fmt yields a few minor alignment tweaks.

Otherwise looks solid—once the above is addressed I’m happy to ✅.

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[bolinfest]

Thanks for fixing this!