Add project ownership succession guard

[pine-harbor]

/claim #11

Summary

Adds project-ownership-succession-guard, a focused User & Project Management guard for project ownership transfer when a workspace owner is inactive, departed, unreachable, suspended, deceased, or when a lab/institution needs a documented succession path.

This is intentionally narrow: it does not rebuild RBAC, invitations, visibility transitions, deletion, archive handoff, offboarding, access appeals, COI, data residency, or SSO administration. It covers the specific decision point where a scientific workspace could become orphaned or be taken over without enough governance.

What It Covers

• Valid owner-inactivity, departure, suspension, legal, or institutional succession triggers.
• Proposed-owner role eligibility for admins, co-owners, PIs, data stewards, and institutional stewards.
• Fresh verified identity and MFA posture for the successor.
• Independent approval through institutional stewardship, data-steward plus co-owner quorum, or legal authority.
• Compliance approval when regulated project holds exist.
• Complete collaborator notice and adequate objection window.
• Preservation of original owner credit, contribution history, and public transfer receipts.
• Competing ownership claims and unresolved disputes.
• Immutable audit receipts for transfer packets.

Included Artifacts

• Dependency-free Node module: project-ownership-succession-guard/src/index.js
• Synthetic sample packets: project-ownership-succession-guard/data/sample_succession_packets.json
• Tests: project-ownership-succession-guard/test/project-ownership-succession-guard.test.js
• Demo/report generator: project-ownership-succession-guard/scripts/demo.js
• Generated reviewer packet, JSON summary, SVG summary, and MP4 slate in project-ownership-succession-guard/reports/

Validation

• npm.cmd test: 7 tests passed.
• npm.cmd run check: syntax checks passed.
• npm.cmd run demo: generated 4-packet report with APPROVE: 1, REVIEW: 1, HOLD: 2.
• npm.cmd run video: generated reports/demo.mp4.
• git diff --check: passed.
• ffprobe: H.264, 1280x720, 8.000 seconds, 30 fps, 240 frames.

The MP4 is a generated FFmpeg color-source/drawtext slate, not a desktop or browser recording. It contains no private data.