feat: add photo support to food menu items

- Add photos and featured_photo columns to menu_items table
- Update MenuEditor with photo upload functionality
- Add click-to-set-featured-photo interaction
- Update menu API endpoints to handle photos

src/lib/schema.ts

@@ -100,6 +100,8 @@ export async function initSchema() {
       is_daily_special BOOLEAN DEFAULT FALSE,
       active BOOLEAN DEFAULT TRUE,
       sort_order INTEGER DEFAULT 0,
+      photos TEXT[] DEFAULT '{}',
+      featured_photo VARCHAR(500),
       created_at TIMESTAMP DEFAULT NOW()
     );
   `);