argus, PR review: detailTarget stored the whole AgentRow object at
selection time, so it never picked up a later refresh() or a
declareState patch - the card list updated live, the panel next to it
kept showing whatever was true the moment it was opened. Concrete
repro: open an agent's detail panel, wait for the next refresh or
destroy it from inside the panel itself, watch the panel not update.
Fix: store only the selected agent's name (detailTargetName) and
re-derive the actual row from rows on every render
(rows?.find(r => r.name === detailTargetName)). The panel can't drift
from what the list is showing since it's reading the same array.
Verified with a real refresh cycle against a mock server that returns
different data on the second call: before, both card and panel show
"idle"; after a live refresh, both show the new value in sync.
3b66f0c8d6