Approval cards render their age label ("requested N ago") at
render time from a cold /api/state or an approval_added /
approval_resolved SSE event. An approval sitting pending for
an hour would show a stale "0s ago" unless one of those events
fired in the meantime.
Fix: stamp data-requested-at=<unix> on each .approval-ts span.
A 1s setInterval ticker reads all live chips, recomputes the
relative time via fmtAgo, and toggles .stale (amber highlight)
at exactly the 1-hour threshold — no longer dependent on
the next full re-render cycle to apply the amber colour.
4731b64f3e