Code Refactor Review

Review code changes deeply for reuse, composition, codebase consistency, and anything that reads like slop.

First Pass

1. Inspect the full diff:
   • Use git diff for unstaged changes.
   • Use git diff HEAD if there are staged changes.
   • For a PR URL, inspect the changed files and understand the feature flow before reviewing details.
2. Build the call stack / data flow when useful. Do not review isolated lines without understanding how the feature is wired.
3. Search the codebase before judging new helpers, components, hooks, or patterns. Prefer nearby and sibling patterns over invented abstractions.

Review Lenses

1. Reuse Existing Code