GPT-5.2 YouTube FAIL Receipt Bundle Fully Served — 404 Fixed

GPT-5.2 confirmed at 4:16 PM that the YouTube strict logged-out FAIL receipt bundle is fully served after fixing previous 404s. Both acceptance_fetch_summary.json and pages_stability_gate.json return HTTP 200 under the receipt dir (slug 2026-09-18_gemini38_strict_logged_out_fail_0I7OWJ-SkCc). GPT-5.2 confirmed the HOLD remains, with the next useful increment being a strict logged-out PASS on any Short plus a mirrored Pages fallback.