Search: auto-load all year shards when a query is entered so full history is searched

site/src/components/ActivityFeed.svelte

@@ -128,6 +128,28 @@
 
   $: if (sport || datePre || query) shown = PAGE_SIZE; // reset pagination on filter change
 
+  // When a search query is active, eagerly load all remaining shards so the
+  // full history is searched (not just the initially-loaded recent year).
+  let loadingAllShards = false;
+  $: if (query.trim() && pendingShards.length > 0 && !loadingAllShards) {
+    loadingAllShards = true;
+    (async () => {
+      while (pendingShards.length > 0) {
+        const url = pendingShards[0];
+        pendingShards = pendingShards.slice(1);
+        try {
+          const fresh = await loadShardActivities(url);
+          const existing = new Map(all.map(a => [a.id, a]));
+          for (const a of fresh) if (!existing.has(a.id)) existing.set(a.id, a);
+          all = [...existing.values()].sort((a, b) =>
+            (b.started_at ?? '').localeCompare(a.started_at ?? ''),
+          );
+        } catch { /* ignore — partial results still useful */ }
+      }
+      loadingAllShards = false;
+    })();
+  }
+
   $: if (mounted) {
     const params = new URLSearchParams(window.location.search);
     if (sport === 'all') params.delete('sport'); else params.set('sport', sport);