Fix map click in server clustering mode when item not loaded

When using server-side clustering, the clicked item's uuid might not be
in the paginated props.items array. Now emits a minimal object with just
uuid so parent pages can still navigate.

app/components/page/CatalogPage.vue

@@ -332,6 +332,11 @@ const onMapSelect = (uuid: string) => {
   if (item) {
     emit('select', item)
     emit('update:selectedId', uuid)
+  } else if (props.useServerClustering) {
+    // For server clustering, item might not be in paginated props.items
+    // Emit minimal item with just uuid so parent can still navigate
+    emit('select', { uuid })
+    emit('update:selectedId', uuid)
   }
 }