Add assistant decision handoff guard

[keon0711]

/claim #16

Summary

• Adds a focused assistant decision handoff guard for the AI-Powered Research Assistant Suite.
• Validates whether peer-review, reproducibility, and research-gap assistant outputs can safely become researcher-facing recommendations or tasks.
• Checks source snapshot freshness, artifact revision drift, cross-assistant conflicts, missing evidence anchors, high-impact human approval, private reviewer note leakage, reviewer identity risk, confidence, and remediation coverage.
• Emits deterministic release/revise/hold decisions plus JSON, Markdown, SVG, and MP4 review artifacts from synthetic data only.

Scope isolation

• This is not another peer-review generator, reproducibility scorer, research-gap finder, evidence binder, prompt-safety filter, structured-abstract checker, or external-validity assistant.
• It is the orchestration boundary that prevents stale, conflicted, private, or unauthorized assistant outputs from being promoted into user-facing actions.

Validation

• node assistant-decision-handoff-guard/test.js
• node assistant-decision-handoff-guard/demo.js
• node assistant-decision-handoff-guard/render-video.js
• node --check assistant-decision-handoff-guard/index.js
• node --check assistant-decision-handoff-guard/sample-data.js
• node --check assistant-decision-handoff-guard/test.js
• node --check assistant-decision-handoff-guard/demo.js
• node --check assistant-decision-handoff-guard/render-video.js
• ffprobe -v error -select_streams v:0 -show_entries stream=codec_name,width,height,pix_fmt,duration -of default=nw=1 assistant-decision-handoff-guard/reports/demo.mp4
• git diff --cached --check

The generated MP4 is H.264, 1280x720, yuv420p, duration 4.000000 seconds.

[keon0711]

@algora-pbc /claim #16

[keon0711]

/claim #16