remove pydantic from user.py

src/user.py

@@ -1,5 +1,4 @@
-from pydantic import BaseModel
-
+from dataclasses import dataclass, field
 from src.models import EncipheredNKode
 from src.customer_attributes import CustomerAttributes
 from src.user_cipher_keys import UserCipherKeys
@@ -7,12 +6,13 @@ from src.user_interface import UserInterface
 from src.utils import xor_lists
 
 
-class User(BaseModel):
+@dataclass
+class User:
     username: str
     enciphered_passcode: EncipheredNKode
     user_keys: UserCipherKeys
     user_interface: UserInterface
-    renew: bool = False
+    renew: bool = field(default=False)
 
     def renew_keys(self, sets_xor: list[int], attrs_xor: list[int]):
         self.renew = True