[codex] Add discussion sidebar audit

[newmattock]

Addresses #12

Summary

• add collaborative-discussion-sidebar-audit, a focused collaborative research editor slice for issue Real-time collaborative research editor & interface #12
• audit section-scoped discussion threads for unresolved evidence gaps, stale owners, hidden blockers, late-stage scope drift, and reviewer task readiness
• export reviewer tasks, section-level risk summaries, discussion health metrics, deterministic audit digest, SVG walkthrough, and short MP4 demo

Validation

Fresh validation on 2026-05-17 20:58 PDT:

• npm test -> collaborative discussion sidebar audit tests passed
• npm run demo -> project Multimodal biomarker screening draft, Threads: 4, Blockers: 5, Warnings: 3, Reviewer tasks: 1, digest scibase-paper-alpha:5:3:1:ebc3395f938f
• npm run demo:video -> wrote docs/demo.mp4
• file docs/demo.mp4 -> ISO Media, MP4 v2 [ISO 14496-14]
• git diff --check
• focused sensitive-string scan for API keys, secrets, tokens, passwords, private keys, wallet material, and EVM addresses

/claim #12

[newmattock]

@algora-pbc /claim #12

[newmattock]

/claim #12