docs(devlog): close the remote hub restack unit

[lidge-jun]

Summary

• Closes the remote-hub restack unit. Twelve PRs merged, one closed as a duplicate; dev is at 75d9ada92.
• Records the landing tally (the seven-phase stack, the test(auth): seed the pool quota after the clock is pinned #3147 root fix for the dev-side flake, the four documentation PRs, and test(auth): timestamp quota fixtures under fake clock #3143 closed as a duplicate of test(auth): seed the pool quota after the clock is pinned #3147) and points remaining work at remote hub: four P2 follow-ups left open after the stack merged #3158.
• Records the two judgments this unit produced: that a review finding gets verified against the code before it is adopted (test(auth): seed the pool quota after the clock is pinned #3147's P1 had its causality inverted; docs(devlog): remote hub restack planning unit #3149's four findings were all correct), and that disclosure ordering is a constraint on merge sequence rather than on file content.

Docs only.

Verification

No full suite, per policy. This PR adds one markdown file and changes no code.

Checklist

• Scope stays focused and avoids unrelated cleanup.
• Docs or release notes were updated when needed (this PR is the documentation).
• Security-sensitive changes were reviewed for secrets, auth, and unsafe defaults — no code change.

[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 2026-09-01T15:10:43.533748Z	def00b1	PR opened

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[github-actions]

✅ Deterministic PR hygiene checks passed.

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: def00b185f

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[chatgpt-codex-connector]

Move the closed unit out of _plan

This file explicitly declares the unit closed, but adding the closeout under devlog/_plan/260901_remote_hub_restack/ leaves the entire completed unit classified as open. Move the unit directory to devlog/_fin/260901_remote_hub_restack/ when recording this terminal outcome.

AGENTS.md reference: AGENTS.md:L83-L86

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