docs(product): establish current PRD and semantic gap baseline

[seonghobae]

Outcome

• adds the first standalone LineageWeave PRD while keeping ADRs normative
• records exact-case ecosystem product authorities and integration boundaries
• refreshes docs/product-technical-gap-baseline.md against protected main 48f013a2, 4 open PRs, and 14 open issues
• records protected delivery of fix(lineage): clear stale focused graph during navigation #612/feat(dashboard): complete governed semantic evidence paths #614/fix(ui): stop WorkspaceCalendar's fail-closed placeholder announcing as role=status #615/feat(ontology): make repository-case namespace canonical (v2.18.0, ADR 0207) #616 and the fix: validate ontology shape term kinds #618/security: document fixed similar-VOC SQL fragment #619 follow-ups

Verification

• uv run --extra dev pytest tests/test_documentation_hygiene.py -q (5 passed)
• git diff --check

All repository examples remain synthetic and non-identifying.

---

[coderabbitai]

Warning

Review limit reached

Next included review available in 7 minutes.

View limit details

Limit details: You’ve used the included review currently available.

You've used all free OSS reviews for now. Wait for the free limit to reset to keep reviewing this public repository.

Learn how review limits work.

Review configuration:

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: a3e0d003-e661-4065-bf04-817ed904209d

📥 Commits

Reviewing files that changed from the base of the PR and between 48f013a and efcfb39.

📒 Files selected for processing (4)

• README.md
• docs/adr/README.md
• docs/product-requirements.md
• docs/product-technical-gap-baseline.md

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}