refactor(admin): align admin ui with app design language

- dashboard: card grid replaced by status strip + nav-tile section + list
- nav-tile promoted to shared component
- stat tiles and usage screen de-carded, sections divided like settings
- hub run tournament back to a list row
- telemetry link restored in tools list

src/app/routes/_authed/admin/index.tsx

@@ -3,7 +3,7 @@ import { msg } from "@lingui/core/macro";
 import { AdminDashboard } from "@/features/admin";
 import { tournamentQueries } from "@/features/tournaments/queries";
 import { telemetryQueries } from "@/features/telemetry/queries";
-import { lastNDays } from "@/features/telemetry/range";
+import { isoDay, lastNDays } from "@/features/telemetry/range";
 import { prefetchServerQuery } from "@/lib/tanstack-query/utils/prefetch";
 
 export const Route = createFileRoute("/_authed/admin/")({
@@ -15,6 +15,11 @@ export const Route = createFileRoute("/_authed/admin/")({
       context.queryClient,
       telemetryQueries.errorGroups({ from: month.from, to: month.to })
     );
+    const today = isoDay(new Date());
+    prefetchServerQuery(
+      context.queryClient,
+      telemetryQueries.rollups({ metrics: ["server_fn.count"], from: today, to: today })
+    );
   },
   loader: () => ({
     header: {