The --registry flag overrides all package resolution, causing npm to
look for third-party deps (e.g. @anthropic-ai/sdk) on Gitea. Fix by
writing a scoped .npmrc that routes only @mosaic/* to Gitea while
letting everything else resolve from npmjs normally.
Bump to 0.0.13.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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