Take a recording off a series' "Ready to publish" list.

Takes one finished recording or video off the "Ready to publish" list for good — a voice check, a duplicate, an old take nobody will publish. The Publishing page's Remove, MCP remove_publishing_ready_recording and sleeperhit publishing releases remove-ready make the same remove. The recording itself is kept and nothing in the feed changes. Removing an episode's newest recording takes the episode off the list (an older recording never takes its place); a newer recording of it is listed again, and so is this one once its Table Read sends it to Publishing again. Answers { sourceArtifactId, removed: true }. Free and naturally idempotent (removing one already removed is the same state), so no Idempotency-Key. A recording that is not the series' project's reads as 404.