fix(person-images): guard undefined clusterId and drop the any cast

Addresses CodeRabbit review on the PR: only treat the slice as synced when
clusterId is defined, and type the query-data fallback explicitly instead of
casting through any.

Author: tanmaysachann

frontend/src/pages/PersonImages/PersonImages.tsx

@@ -56,9 +56,9 @@ export const PersonImages = () => {
   // page's images (issue #1315). Fall back to the cluster-scoped query data for
   // that window; read the slice once synced so favourite toggles still work.
   const personImages =
-    loadedClusterId === clusterId
+    clusterId !== undefined && loadedClusterId === clusterId
       ? images
-      : (((data?.data as any)?.images as Image[]) ?? []);
+      : ((data?.data as { images?: Image[] })?.images ?? []);
 
   const handleEditName = () => {
     setClusterName(clusterName);