feat: add Food Gallery category to image gallery

- Add 'food' category filter in ImageGallery component
- Add '🍽️ Food Gallery' section in sectionCategories
- Update filteredImages logic to handle food category
- Clean up duplicate logo/favicon images in database

src/app/admin/page.tsx

@@ -272,6 +272,7 @@ function ImageGallery({ images, onDelete }: { images: Image[]; onDelete: (id: nu
 
   const sectionCategories = [
     { key: 'slides', label: '🎞️ Slideshow Gallery', filter: (i: Image) => i.category === 'slides' || i.location_target === 'slides' },
+    { key: 'food', label: '🍽️ Food Gallery', filter: (i: Image) => i.category === 'food' || i.location_target === 'food' },
     { key: 'calendar', label: '📅 Calendar Events Gallery', filter: (i: Image) => i.category === 'calendar' || i.location_target === 'calendar' },
     { key: 'social', label: '🎪 Social Events Gallery', filter: (i: Image) => i.category === 'social' || i.location_target === 'social' },
   ];
@@ -290,6 +291,7 @@ function ImageGallery({ images, onDelete }: { images: Image[]; onDelete: (id: nu
   const filteredImages = images.filter((img) => {
     if (selectedCategory === 'all') return true;
     if (selectedCategory === 'rooms') return img.category === 'rooms' || img.location_target?.startsWith('room-');
+    if (selectedCategory === 'food') return img.category === 'food' || img.location_target === 'food';
     return img.category === selectedCategory || img.location_target === selectedCategory;
   });
 
@@ -387,7 +389,7 @@ function ImageGallery({ images, onDelete }: { images: Image[]; onDelete: (id: nu
         border: `1px solid ${C.border}`, background: '#fff',
         boxShadow: C.shadow,
       }}>
-        {['all', 'slides', 'calendar', 'social', 'rooms', 'other'].map((cat) => (
+        {['all', 'slides', 'food', 'calendar', 'social', 'rooms', 'other'].map((cat) => (
           <Btn
             key={cat}
             onClick={() => setSelectedCategory(cat)}