fix bugs

src/nkode_api.py

@@ -16,10 +16,8 @@ class NKodeAPI:
     signup_sessions: dict[UUID, UserSignupSession] = field(default_factory=dict)
 
     def create_new_customer(self, keypad_size: KeypadSize, nkode_policy: NKodePolicy) -> UUID:
-        new_customer = Customer(
-            customer_id=uuid4(),
+        new_customer = Customer.create(
             cipher=CustomerCipher.create(keypad_size),
-            users={},
             nkode_policy=nkode_policy
         )
         self.customers[new_customer.customer_id] = new_customer
@@ -97,7 +95,6 @@ class NKodeAPI:
         if username not in customer.users.keys():
             raise ValueError("Username not found")
         user = customer.users[username]
-        # user.user_keypad.partial_keypad_shuffle()
         # TODO: implement split_keypad_shuffle()
         return user.user_keypad.keypad