bvandeusen
25e1e098fb
celery_signals._queue_for is a hand-maintained mirror of task_routes that stamps TaskRun.queue in the prerun signal. It was missing the backend.app.tasks.external. prefix, so external fetches recorded queue='default' even though celery routes external.* → download and runs them on the download worker. The dashboard's per-queue filters and the per-queue recovery-sweep threshold therefore missed them — the same 'queue column lies default' gap the 2026-06-02 audit fixed for backup/admin/library_audit. Map external.* → download in _queue_for. Composes with the fetch_external_link task-name sweep override (#883), which wins by precedence regardless of the recorded queue. Pinned test asserts the mirror agrees with the actual route. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>