fix: properly track featured_photo state in menu editor

src/app/admin/page.tsx

@@ -1524,7 +1524,8 @@ function MenuSection({ items, setItems, images, onToast }: any) {
 
 function MenuEditor({ item, setItem, onSave, onCancel }: any) {
   const [localPhotos, setLocalPhotos] = useState<string[]>(item.photos || []);
-  const i = { ...item, photos: localPhotos };
+  const [featuredPhoto, setFeaturedPhoto] = useState<string | null>(item.featured_photo || null);
+  const i = { ...item, photos: localPhotos, featured_photo: featuredPhoto };
 
   const addPhotos = async (files: FileList) => {
     const newPhotos: string[] = [];
@@ -1565,13 +1566,13 @@ function MenuEditor({ item, setItem, onSave, onCancel }: any) {
                   <img
                     src={ph}
                     alt=""
-                    onClick={() => setItem({ ...i, featured_photo: ph })}
+                    onClick={() => setFeaturedPhoto(ph)}
                     style={{
-                      width: 64, height: 48, objectFit: 'cover', borderRadius: 6, border: i.featured_photo === ph ? `2px solid ${C.gold}` : '1px solid #eee',
+                      width: 64, height: 48, objectFit: 'cover', borderRadius: 6, border: featuredPhoto === ph ? `2px solid ${C.gold}` : '1px solid #eee',
                       cursor: 'pointer',
                     }}
                   />
-                  <button onClick={() => setLocalPhotos(prev => prev.filter((_, j) => j !== idx))}
+                  <button onClick={() => { setLocalPhotos(prev => prev.filter((_, j) => j !== idx)); if (featuredPhoto === ph) setFeaturedPhoto(null); }}
                     style={{ position: 'absolute', top: -4, right: -4, width: 18, height: 18, borderRadius: '50%', background: C.danger, color: '#fff', border: 'none', cursor: 'pointer', fontSize: '11px', lineHeight: 18, padding: 0 }}>×</button>
                 </div>
               ))}