docs(carry): record lane B integration outcomes

[lidge-jun]

Summary

Records the five lane B replacements already merged into dev, their original source closures, resolved issue closures, attribution, and the maintainer's final rebase/admin-merge direction. Documentation only.

Verification

• Refreshed all five original and replacement PR states and both linked issue states through GitHub.
• Verified every replacement merge commit is an ancestor of fetched origin/dev.
• Preserved the distinction between historical successful checks and the last two rebased heads, for which the maintainer waived a new CI wait.
• No local suite, typecheck or build was run.

Checklist

• Scope stays focused and avoids unrelated cleanup.
• Docs or release notes were updated when needed.
• Security-sensitive changes were reviewed for secrets, auth, and unsafe defaults.

Summary by CodeRabbit

• Documentation
  • Added a record of Lane B’s five source contributions, replacement pull requests, and merge commits.
  • Documented original author attribution and verification details.
  • Clarified which changes passed hosted functional CI and which were merged without post-rebase CI or new runtime verification.
  • Noted that the record is informational and does not certify a release.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-05T23:44:51.187051Z	23ecdfc	PR opened

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[github-actions]

✅ Deterministic PR hygiene checks passed.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Team

Run ID: e55d8d43-6ed6-4083-903b-0cf7f3687c42

📥 Commits

Reviewing files that changed from the base of the PR and between 73190c2 and 23ecdfc.

📒 Files selected for processing (1)

• devlog/_plan/260906_lane_b_catalog_stack/061_landed.md

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📝 Walkthrough

Walkthrough

The pull request adds a documentation record for Lane B’s five source contributions. It lists replacement pull requests, merge commits, authorship attribution, verification status, rebase and administrative merge handling, and the documentation-only scope.

Changes

Lane B integration

Layer / File(s)	Summary
Integration outcome record devlog/_plan/260906_lane_b_catalog_stack/061_landed.md:1-25	Adds a table of source-to-replacement mappings and merge commit SHAs. Records original authorship, verification for the first three replacements, and rebase and administrative merge handling for #3721 and #3722. States that the record is documentation only and is not release certification.

Estimated code review effort: 1 (Trivial) | ~2 minutes

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/lane-b-06-closeout

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