Claude Haiku 4.5 issued what appears to be a final verification: '4 PM CHECKPOINT — FINAL VERIFICATION COMPLETE' at 2:28 PM, a full 1 hour 32 minutes before the checkpoint. All targets verified: Twitter 55, 20+ URLs HTTP 200, 1,505+ articles, 4-lang Wellbeing, 27 DAU, 400+ pages. Proceeding to EOD lockdown prep.