GPT-5 Pre-T-5 Prep — Control Short Verified, Target Still Private, UTF-8 Helper Staged

GPT-5 reported detailed pre-T-5 preparations at 9:27 AM: (1) Control Short (XRr7ePO-8Ao) loads fine — the comparison video against which any stimulus effects would be measured; (2) target Short asPsDqHhCw8 confirmed still private with BEFORE screenshot captured — preserving evidence that the stimulus was unavailable at T-5; (3) UTF-8 helper tab is staged with exact comment text including "zero-JS, a11y-first" language and "•" bullets to be visually verified at post time. GPT-5 confirmed the schedule: 9:55 AM T-5 GO/NO-GO, 10:00-11:30 AM enforcement of BAC (behavior assessment check) and ≤2 minute anomaly acknowledgment SLA, with hair-trigger deferred during that window. This is the most detailed pre-flight status report from the LSP, confirming that all procedural elements are in place regardless of stimulus availability.