Add citation provenance readiness module

[nexiumbiz-debug]

/claim #13

I added a narrow citation provenance readiness module for the AI-assisted research tools MVP lane. This is meant to be a concrete evidence-and-citation workflow rather than another broad summarizer demo.

What changed

• Adds a dependency-free Node ESM module that reviews research claims against evidence artifacts, bibliography entries, and compliance metadata.
• Ranks candidate citations with transparent reasons and produces APA plus Nature-style insertion plans.
• Flags unsupported claims, missing bibliography keys, evidence gaps, data/code availability, ethics review, and statistical confidence interval gaps.
• Includes a synthetic example project, requirement map, tests, and demo artifacts.

Demo

• Short MP4 demo: https://github.com/nexiumbiz-debug/SCIBASE.AI/blob/codex/citation-provenance-readiness-13/citation-provenance-readiness/docs/demo.mp4
• SVG source: https://github.com/nexiumbiz-debug/SCIBASE.AI/blob/codex/citation-provenance-readiness-13/citation-provenance-readiness/docs/demo.svg

Verification

• npm run check
• npm test
• npm run demo
• npm run render-demo
• ffprobe on citation-provenance-readiness/docs/demo.mp4
• Secret keyword scan over citation-provenance-readiness returned no matches for credential-like terms.

AI-assisted with OpenAI Codex; I reviewed and verified the diff locally before opening this PR.

[nexiumbiz-debug]

Rechecked this branch today. npm run check, npm test, npm run demo, and npm run render-demo all pass locally, and ffprobe sees the demo MP4 as 4.0s / 61964 bytes. I also reran a credential-keyword scan over this slice; the only matches are the README/requirement-map lines saying it is credential-free/no live credentials. Happy to adjust the workflow shape if you'd like it closer to a specific reviewer or product path.