Git Cleanup

Help clean up stale git branches:

1. Run git branch -a to list all branches
2. Run git branch --merged main (or master) to find merged branches
3. Check the last commit date for unmerged branches with git log --format="%ci %D" -1 <branch>
4. Suggest which branches are safe to delete (merged or inactive for 30+ days)
5. Show the exact git branch -d commands to run, but do NOT execute them without confirmation