9ba3db75fd
recover_stalled_task_runs used the 5-min default for the download queue, but download_source legitimately walks up to DOWNLOAD_HARD_TIME_LIMIT (1500s = 25m). Healthy in-flight Patreon/gallery-dl walks were flagged as phantom 'RecoverySweep' failures — visible in System Activity but absent from the Subscriptions view (the download finished ok, reset the source's consecutive_failures; only the orphaned task_run kept the stamp, since _finalize only updates rows still 'running'). Add download:30 to QUEUE_STUCK_THRESHOLD_MINUTES — clears the 25-min hard limit with buffer and matches DOWNLOAD_STALL_THRESHOLD_MINUTES so a real hard kill is swept by the task-run and event sweeps together. Restores the documented invariant (every override >= task time_limit). Regression test pins the threshold above the hard limit so a future limit bump can't silently re-break it. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>