/claim #10

Summary

• Adds a distinct notebook output diff gate for Project Repository & Version Control.
• Reviews notebook cell diffs for stale output changes, missing execution records, missing environment fingerprints, large output changes without reviewer evidence, and unchanged output digests.
• Produces deterministic reviewer receipts plus JSON, Markdown, and SVG artifacts from synthetic notebook diff packets.

Non-overlap

This focuses on notebook output diff review and execution evidence coupling. It is separate from broad repository modules, merge queue governance, version tag governance, restore rehearsal, external reference pinning, package integrity, and generic notebook preview/reproducibility submissions.

Verification

• node project-repository-version-control/notebook-output-diff-gate/test.js
• node project-repository-version-control/notebook-output-diff-gate/demo.js
• git diff --check

All data is synthetic; no private notebooks, credentials, kernels, or external services are used.

Closes #10