Makes the drift that PR #70 caught impossible to repeat:
- `version-packages` script now runs `changeset version && npm install
--package-lock-only && check-lockfile-sync`, so the lockfile is always
regenerated and verified as part of consuming a changeset
- New `scripts/check-lockfile-sync.mjs` compares package.json#.version against
package-lock.json's root and packages[""] version fields (npm ci does not
enforce these, which is why the prior drift slipped through CI)
- CI now runs `npm run check:lockfile` on every push/PR — any future drift
fails the build before merge
- COM workflow in CLAUDE.md collapsed back to a single release-bump step now
that lockfile sync is automatic
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
