The season branch of the attention queue listed a season on one failed
grab of any age, so `GET /api/queues/attention` returned Rick and Morty
with every season it has and buried the one that needed attention.
Two changes, both stated in DESIGN.md §5.7:
- The season branch now enforces the same bar the episode branch does:
two grabs that hard-failed on *different* releases.
- A failed grab counts toward the queue for 30 days
(`arr_db::ATTENTION_WINDOW`). Nothing clears a `grabs` row, so without
a window the queue only grows and can never be emptied. #181 gave the
pack guard a backoff curve for the same reason; this is the queue's
version of §6.2's "it never gives up entirely, it goes quiet". A
season the operator dealt with stops failing and drops out; one still
breaking keeps failing (the pack guard retries at worst weekly) and
stays.
The window applies to all three hard-fail lanes — movie, episode and
season — because DESIGN.md states one rule for the queue, and to the
daemon's needs-a-decision notifier as well as the API, since both read
the same queue and a season-per-failure notification is the same noise
on a different channel. No schema change: `grabs.grabbed_at` already
carries the timestamp.
Gate: `just ci` green (486 tests).
Miguel Palhas