fix-author

name	fix-author
description	Fix the author on all commits since main to match the local or global .gitconfig

Fix Author

Fix the author on all commits between main and HEAD using the current git config.

1. Read user.name and user.email from git config. Local config takes precedence over global config.
2. List all commits from main..HEAD with their authors.
3. Identify commits with a mismatched author.
4. If none are mismatched, tell the user and do nothing.
5. Otherwise, use git rebase main --exec 'git commit --amend --author="Name <email>" --no-edit' to fix the author on all commits.
6. Report which commits were updated.