#340: POST /api/signals/icon spends the server's TYPESAFE_KEY for
anyone signed in, whatever signals_on_server says, and is not tied to
a Signal, so a loop on it ran up the bill and, through the shared pace
and a 429's back-off, held back everyone's judging. Each person now has
20 picks an hour; past that it is a 429 the page shows as a toast.
#343: on the server's key, calls() put everyone's Signals on an item in
one call (#275), so one person's free-text description was part of the
question that decided another's verdicts. Each person's Signals on an
item are now a call of their own. The saving #275 made is lost only
where two people have Signals on the same item.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>