SECURITY-169-API-08 ledger closeout

[fermatmind]

What changed

• Closed the SECURITY-169-API-08 train ledger after PR SECURITY-169-API-08: harden EQ agent runtime safety and cost controls #2808 merged.
• Recorded the implementation commit, merge timestamp, GitHub required-check recovery, branch cleanup, and post-merge revalidation result.

Why

• The implementation PR was merged and the train state needs to reflect the completed API08 scope before the train can move on in a future run.

Validation

• python3 -m json.tool docs/codex/pr-train-state.json >/dev/null
• git diff --check
• git diff --name-only confirmed the only changed file is docs/codex/pr-train-state.json.

Deferred items

• No deferred current-scope items.
• No staging deploy wait, no manual deploy, no production deploy, no CMS mutation, and no production write.

[chatgpt-codex-connector]

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