POST /api/v1/statuses with scheduled_at no longer posts at once: the post is kept as asked (at least five minutes ahead; 300 waiting, 25 a day, as Mastodon allows), its media kept from the janitor, and a PublishScheduled job publishes it at its time as the persona. scheduled_statuses lists, moves and drops them; a moved post's old job finds it not due. Idempotency-Key holds for scheduling too. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw