Changed module name from my_auth to myauth

Changed encryption algorithm to argon2
Added unit tests

tests/core/test_token_manager.py

@@ -6,9 +6,9 @@ from unittest.mock import MagicMock, patch
 import pytest
 from jose import jwt
 
-from src.my_auth.core.token import TokenManager
-from src.my_auth.exceptions import InvalidTokenError, ExpiredTokenError
-from src.my_auth.models.user import UserInDB  # Assuming you have a fixture for this
+from myauth.core.token import TokenManager
+from myauth.exceptions import InvalidTokenError, ExpiredTokenError
+from myauth.models.user import UserInDB  # Assuming you have a fixture for this
 
 
 @pytest.fixture
@@ -99,7 +99,7 @@ class TestTokenExpirationCalculations:
   """Tests for token expiration date methods."""
   
   # We patch datetime.now() to ensure stable calculations
-  @patch('src.my_auth.core.token.datetime')
+  @patch('myauth.core.token.datetime')
   def test_get_refresh_token_expiration(self, mock_datetime, token_manager: TokenManager):
     """Should calculate refresh token expiration correctly."""
     
@@ -112,7 +112,7 @@ class TestTokenExpirationCalculations:
     
     assert actual_exp == expected_exp
   
-  @patch('src.my_auth.core.token.datetime')
+  @patch('myauth.core.token.datetime')
   def test_get_password_reset_token_expiration(self, mock_datetime, token_manager: TokenManager):
     """Should calculate password reset token expiration correctly."""