release

Cut an aidemo release: bump package.json, commit, push to main — CI (release.yml) then creates the vX.Y.Z tag, moves stable, and publishes the GitHub Release. Use when the user says "cut a release", "release vX.Y.Z", "bump and release", "ship a new version", or "move stable". Knows the gotchas: the version lives ONLY in package.json, pushing a version bump to main IS the ship trigger, CI tagging is idempotent, npm…