fix(gallery/filters): make feedback filters work globally when no guest_id is provided; remove guest_id from client photos query\n\n- Backend /api/gallery/:slug/photos: if filter present and guest_id missing, filter by like_count/favorite_count\n- Frontend useGalleryPhotos: stop passing random guestId (does not match server guest_identifier)\n\nThis makes Liked/Favorited filters reflect photos with aggregate feedback counts as expected.

backend/src/routes/gallery.js

@@ -131,6 +131,17 @@ router.get('/:slug/photos', verifyGalleryAccess, async (req, res) => {
       
       // Filter photos to only include those with feedback
       photos = photos.filter(photo => filteredPhotoIds.includes(photo.id));
+    } else if (filter && !guest_id) {
+      // Global filtering (by aggregate counts) when no guest identifier is provided
+      // Normalize filter string
+      const f = String(filter).toLowerCase();
+      if (f === 'liked') {
+        photos = photos.filter(p => (p.like_count || 0) > 0);
+      } else if (f === 'favorited') {
+        photos = photos.filter(p => (p.favorite_count || 0) > 0);
+      } else if (f === 'liked,favorited' || f === 'favorited,liked') {
+        photos = photos.filter(p => (p.like_count || 0) > 0 || (p.favorite_count || 0) > 0);
+      }
     }
     
     // Then get comment counts separately

frontend/src/hooks/useGallery.ts

@@ -14,7 +14,8 @@ export const useGalleryInfo = (slug: string, token?: string) => {
 export const useGalleryPhotos = (slug: string, filter?: 'liked' | 'favorited' | 'all', guestId?: string, enabled: boolean = true) => {
   return useQuery({
     queryKey: ['gallery-photos', slug, filter, guestId],
-    queryFn: () => galleryService.getGalleryPhotos(slug, filter, guestId),
+    // Do not pass guestId for now; backend will apply global filters when guest_id is absent
+    queryFn: () => galleryService.getGalleryPhotos(slug, filter, undefined),
     enabled,
     retry: 1,
     staleTime: 5 * 60 * 1000, // 5 minutes