Advance each serialized web-provider queue when an aborted caller is released while retaining terminal observation of the underlying request. Preserve an accepted pending start across repeated stop requests and dispatch it exactly once after drain. Derive provider retry deadlines from eligible queued items, configured fallback chains, enabled accounts and keys, and matching provider or hoster cooldowns. Add RED-to-GREEN coverage for queue progress, repeated stop behavior, disabled accounts, alternative providers, unrelated hosters, and post-processing-only state.
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.