A failed season-pack grab held the season off the pack lane forever:
pack_hard_failed was a bare EXISTS over failed grabs, so one bad
torrent disabled pack search for good, against §6.2's "it never gives
up entirely, it goes quiet".
The guard now rides the shared backoff curve (backoff_elapsed, 1h → 6h
→ 1d → 3d, capped 7d), counting failed pack grabs as attempts and
anchoring on the latest one's grabbed_at. Both the targeted and RSS
lanes agree. A manual season search waives the window outright — the
season deck is §6.2's escape hatch.
Closes#181.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Miguel Palhas