Update Skills Docs

On load: immediately run the analysis below. No preamble.

Step 1: Find the sync point

git rev-parse skills-sync

If the tag does not exist, create it at the last commit that touched skills/skills/:

BOOTSTRAP=$(git log --oneline -- skills/skills/ | head -1 | awk '{print $1}')
git tag -a skills-sync $BOOTSTRAP -m "skills synced $(date -I)"
git push skills skills-sync

Step 2: Check if already synced