Review round: pollState() unifies the CanPoll/Pending/Requested derivation
used by the list row and the detail page, and the row anchor carries its
band parity with the press (hx-vals) so the swapped answer keeps the
alternation.
The control writes series.force_poll_at (column landed in migration 0014)
and never commands the poller: pending is derived as force_poll_at >
latest_checked_at and self-clears because the check stamp is written before
the fetch. The due query's forced flag overrides the rest cutoff, the
Sighting-deferral and finished-only clauses, jumps the queue, and wakes a
sleeping browser Lane; it never overrides an empty series_url, the Bookmarks
join, the refusal backoff, the sidecar-down skip or the Lane gap.
ADRs: 0013-commands-through-the-database.