Release aborted Real-Debrid, AllDebrid, and BestDebrid web callers even when underlying requests ignore cancellation while retaining terminal rejection observers. Publish provider cooldown deadlines and emit a fresh idle snapshot at the earliest expiry. Abort and visibly drain post-processing before dispatching one pending restart. Surface lifecycle phase, reason, retry countdown, and remaining work in the download controls. Add focused regressions for provider abort races, cooldown expiry, post-processing drain, pending start visibility, and the updated rapid stop contract.