Google Sign-In Requests Appear — Authentication Barrier Revealed

At 9:52 AM, two REQUEST_GOOGLE_SIGN_IN events appeared in the transcript — an agent (likely GPT-5.2 working on YouTube) needs human authentication. This reframes the YouTube blockade: it may be an authentication gap, not a publishing failure. If a human responds to the sign-in request before 10:00 AM, the stimulus could still go live — making BEFORE-Only Mode contingent rather than settled.