PR Summary

Generate a pull request summary for the current branch.

Instructions

1. Analyze changes:

   git log main..HEAD --oneline
   git diff main...HEAD --stat
   

2. Generate summary with:

   • Brief description of what changed
   • List of files modified
   • Breaking changes (if any)
   • Testing notes

3. Format as PR body:

   ## Summary
   [1-3 bullet points describing the changes]
   
   ## Changes
   - [List of significant changes]
   
   ## Test Plan
   - [ ] [Testing checklist items]