refactor(admin): drop status strip from dashboard; full-bleed usage tab

- admin home is tournament section + tools list only
- usage route matches sibling tabs (fullWidth, no shell padding); screen
  pads its own content so the tab bar stays flush

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

@@ -2,24 +2,11 @@ import { createFileRoute } from "@tanstack/react-router";
 import { msg } from "@lingui/core/macro";
 import { AdminDashboard } from "@/features/admin";
 import { tournamentQueries } from "@/features/tournaments/queries";
-import { telemetryQueries } from "@/features/telemetry/queries";
-import { isoDay, lastNDays } from "@/features/telemetry/range";
 import { prefetchServerQuery } from "@/lib/tanstack-query/utils/prefetch";
 
 export const Route = createFileRoute("/_authed/admin/")({
   beforeLoad: ({ context }) => {
     prefetchServerQuery(context.queryClient, tournamentQueries.current());
-    prefetchServerQuery(context.queryClient, telemetryQueries.runtimeStatus());
-    const month = lastNDays(30);
-    prefetchServerQuery(
-      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: {

src/app/routes/_authed/admin/telemetry/usage.tsx

@@ -10,6 +10,8 @@ export const Route = createFileRoute("/_authed/admin/telemetry/usage")({
     prefetchServerQuery(context.queryClient, telemetryQueries.rollups(defaultUsageParams()));
   },
   loader: () => ({
+    withPadding: false,
+    fullWidth: true,
     refresh: [telemetryQueries.rollups(defaultUsageParams()).queryKey],
   }),
 });