review-ruby-code

<quick_start> <basic_usage>

1. Ensure you're on a feature branch (not main/master/dev)
2. Run git fetch to update remote refs
3. Auto-detect base branch from git configuration
4. Get diff of changed files: git diff --name-only base-branch...HEAD
5. Run rubycritic and simplecov on changed files
6. Analyze each changed file for OOP, Rails, security, and test issues
7. Generate REVIEW.md with findings and VSCode links </basic_usage>