Align console behavior with operator routing and image workflow expectations

Constraint: Must preserve current exchange-rate logic, same-group routing boundary, and temporary image-file behavior while fixing UX-visible inconsistencies.
Rejected: Large frontend chunk refactor | introduced risky circular chunking and did not improve deliverability for this rollout.
Confidence: medium
Scope-risk: moderate
Directive: Keep channel failover constrained to the selected group and preserve Beijing-day semantics for user cache dashboard metrics.
Tested: go test ./controller ./model ./service ./common -count=1; npm run build; remote smoke on source deployment at http://38.76.218.56:18081/ plus /api/status and /api/image-studio/settings.
Not-tested: Browser-driven end-to-end verification of every console page interaction.

web/src/hooks/dashboard/useDashboardData.js

@@ -243,9 +243,11 @@ export const useDashboardData = (userState, userDispatch, statusState) => {
   }, [userDispatch]);
 
   const refresh = useCallback(async () => {
-    const data = await loadQuotaData();
-    await loadUptimeData();
-    await loadCacheStats();
+    const [data] = await Promise.all([
+      loadQuotaData(),
+      loadUptimeData(),
+      loadCacheStats(),
+    ]);
     return data;
   }, [loadQuotaData, loadUptimeData, loadCacheStats]);