Restore the reviewed R9 cleanup path

[petyosi]

Summary

• revert the documentation-only cleanup commit that was sent directly to main by an unexpected local push mapping
• restore the exact pre-cleanup evidence tree without rewriting history
• allow the same cleanup record to return through the intended CI and CodeRabbit-reviewed pull request

Safety

The direct-push main run 29276121713 passed and reported that there were no packages to publish; GitHub release creation was skipped. This revert changes only the two R9 planning documents and does not alter package versions, changesets, or release metadata.

[petyosi]

@coderabbitai review

[coderabbitai]

✅ Action performed

Review finished.

Note: CodeRabbit is an incremental review system and does not re-review already reviewed commits. This command is applicable only when automatic reviews are paused.

[coderabbitai]

📝 Walkthrough

Walkthrough

Updated the stable-release runbook to condense downstream handoff, feature-branch deletion, and R9 evidence criteria. Updated the remediation roadmap to mark R9 completion evidence as pending, enumerate its remaining gates, and remove an outdated progress-log entry describing merged publication evidence.

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title accurately reflects reverting the R9 cleanup path and matches the documentation-only rollback described in the PR.
Description check	✅ Passed	The description is directly about reverting the docs-only cleanup commit and restoring the pre-cleanup evidence tree.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch petyosi/r9-cleanup-revert

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