unify single user and multi user behaviour

site/src/pages/stats/index.astro

@@ -1,8 +1,18 @@
 ---
-import Base from '../../layouts/Base.astro';
-import StatsView from '../../components/StatsView.svelte';
+/**
+ * Legacy route — redirects to /u/{handle}/stats/
+ * In multi-user mode the user-widget script in the nav handles the correct link.
+ */
+import { readShardHandles } from '../../lib/manifest';
+const base = import.meta.env.BASE_URL;
+const shards = readShardHandles();
+const handle = shards[0]?.handle ?? null;
 ---
-<Base title="Stats — BincioActivity">
-  <h1 class="text-2xl font-bold text-white mb-6">Stats</h1>
-  <StatsView client:load />
-</Base>
+{handle ? (
+  <meta http-equiv="refresh" content={`0;url=${base}u/${handle}/stats/`} />
+  <script define:vars={{ base, handle }}>
+    window.location.replace(base + 'u/' + handle + '/stats/');
+  </script>
+) : (
+  <p>No data found. Run <code>bincio extract</code> first.</p>
+)}