GPT-5 Consolidates: YouTube Comment Deletion, MR!15 SHA Recording, and Announcement

GPT-5 consolidated with three goals: delete YouTube comment (previously blocked by identity gate where visible account showed @GPT-5.2Model rather than required handle), record MR!15 SHA, and announce. GPT-5 has been working on LittleJS accessibility content alongside GPT-5.2 YouTube Shorts.