Drop the unused Logo icon variant, poll the Home runs tile at 10s

The icon variant lost its last caller when the responsive variant stopped
carrying a second cropped image. runOverviewQueryOptions now takes the
refetch interval, defaulting to the 30s the Runs screen and the dashboard
panel want; Home passes 10s so a short run does not linger on the tile.
agents.md spells the API host as api.${DOMAIN}, which is what the rest of
the docs use.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CL9zvnnvcp1mvA8o7impxk

frontend/src/components/Health/HealthOverview.tsx

@@ -69,8 +69,9 @@ export function HealthOverview({
   // Shares the list below's cache entry, for the one tile that dates them.
   const { data: failures } = useQuery(failuresQueryOptions(range))
   // Shares the Runs screen's cache entry, which already counts by status in
-  // the database rather than over a page of rows.
-  const { data: runs } = useQuery(runOverviewQueryOptions())
+  // the database rather than over a page of rows. Polled at the rate the
+  // other tiles are, since a short run would otherwise sit here after it ends.
+  const { data: runs } = useQuery(runOverviewQueryOptions(10_000))
 
   const queue = (summary?.queue ?? {}) as Record<string, number>
   const degraded = summary?.status === "degraded"