Diagnose and fix diverged git branches. Use when local and remote have diverged, or when the user says git is messed up.
$npx -y skills add butttons/pi-kit --skill git-fixInstalls into the current project.
Run `npx skills use "https://github.com/butttons/pi-kit" --skill "butttons/pi-kit/git-fix"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/butttons/pi-kit" that are relevant to the current task. Run `npx skills add "https://github.com/butttons/pi-kit"` and select the relevant skills, then follow their instructions.