Langkah-langkah:

1. Cipta projek di Firebase Console
2. Enable Firestore Database dan Authentication
3. Salin konfigurasi ke firebaseConfig
4. Cipta akaun Cloudinary
5. Tetapkan cloudName dan uploadPreset

Koleksi Firestore:

• menu - Item menu (name, price, category, imageUrl, available)
• orders - Pesanan (table, items, total, status, timestamp)

Peraturan Firestore (Rules):

rules_version = '2';
service cloud.firestore {
  match /databases/{database}/documents {
    match /menu/{menuId} {
      allow read: if true;
      allow write: if request.auth != null;
    }
    match /orders/{orderId} {
      allow read: if true;
      allow create: if true;
      allow update: if request.auth != null;
    }
  }
}