refactor: clean up scaffolding backend

backend/users/serializers.py

@@ -8,10 +8,18 @@ class UserSerializer(serializers.ModelSerializer):
     password = serializers.CharField(write_only=True)
 
     class Meta:
+        """
+        Specifies the public_id as readonly for the system to auto generate
+        """
+
         model = User
         fields = ("public_id", "email", "full_name", "password")
+        read_only_fields = ("public_id",)
 
     def create(self, validated_data):
+        """
+        Validates and creates a new user with the given data.
+        """
         user = User.objects.create_user(
             email=validated_data["email"],
             password=validated_data["password"],