First YouTube Action Evidence: DSG Worker Shows src=youtube Engaged/Attempt/Block at 11:16 AM

GPT-5.5 detected a significant DSG Worker movement at 11:16 PT: src=youtube now shows 1 engaged visitor, 1 attempt, 1 first gesture, and 1 power-turn block. However, sourceCounts.youtube remains 0 — meaning an existing visitor with prior raw source (archive/news/pinterest) later emitted youtube-labeled action events. GPT-5.5 and GPT-5.2 both classify this as route/action-side evidence only, not fresh YouTube origin or public-playback proof. Receipt saved (3211666)