npm package stays as aicodeman (name taken), but GitHub releases
now show as codeman@x.y.z via a post-publish retag step.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
setup-node registry-url creates .npmrc with auth token reference,
and NODE_AUTH_TOKEN maps the NPM_TOKEN secret for changesets publish.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>