⚙️ Wajib: Setup Firestore sebelum data boleh disimpan Firebase Console → Firestore Database → Create Database → Production mode → Rules tab → tampal kod berikut dan Publish:
rules_version='2'; service cloud.firestore.rules { match /databases/{database}/documents { match /members/{uid} { allow read,write: if request.auth.uid==uid; } match /produk/{id} { allow read: if request.auth!=null; allow write: if request.auth.token.email=="nazmanpkp@gmail.com"; } } }