Stop an owned queued or running transcription when the user cancels it or corrects the requested instruments. Running work stops at the worker's next check; read task status until cancellation.phase=stopped. Stops local processing only: an already submitted band job may continue and use credits; no supplier cancellation or refund is promised. To include newly requested instruments, then create a replacement from this stopped task with the complete corrected instrument review and a new credit quote/consent where required. Do not recover the old configuration or start a replacement merely because of a timeout. Unconfirmed reviews/prices use their existing cancel tools.