feat(gallery): always-visible feedback indicators on grid tiles; fallback image rendering in lightbox/hero; auto-auth from shared-link token; fix external photo resolver\n\n- GridGallery: bottom-left icons for like/rated/comment on every tile\n- Hero layout grid: added same indicators (non-intrusive icons)\n- Lightbox/Hero: add fallbackSrc to display thumbnail if original fails\n- GalleryAuth: auto-store token from /gallery/:slug/:token and hydrate event\n- Backend gallery photo route: use resolvePhotoFilePath for external-media\n\nfix(admin): move photo feedback badges to bottom-right on admin grid tiles\n\nfix(dashboard): add missing i18n keys for activity types + fallback to formatter\n\nfix(admin/feedback): correct thumbnail URL base + robust date parsing\n\nRefs: #19

frontend/src/components/gallery/layouts/MosaicGalleryLayout.tsx

@@ -42,6 +42,7 @@ const MosaicPhoto: React.FC<MosaicPhotoProps> = ({
   const [pendingAction, setPendingAction] = React.useState<null | { type: 'like' | 'favorite'; photoId: number }>(null);
   const [savedIdentity, setSavedIdentity] = React.useState<{ name: string; email: string } | null>(null);
   return (
+    <>
     <div
       className={`relative group cursor-pointer overflow-hidden rounded-lg bg-neutral-100 ${className}`}
       onClick={(e) => {
@@ -172,6 +173,7 @@ const MosaicPhoto: React.FC<MosaicPhotoProps> = ({
       }}
       feedbackType={pendingAction?.type === 'favorite' ? 'favorite' : 'like'}
     />
+    </>
   );
 };