feat: Implement MFA authentication, add ride statistics model, and update various services, APIs, and tests across the application.

backend/tests/api/test_parks_api.py

@@ -13,20 +13,18 @@ Test patterns follow Django styleguide conventions with:
 - Permission and authorization testing
 """
 
-import pytest
-from unittest.mock import patch, MagicMock
-from django.test import TestCase
-from django.urls import reverse
-from rest_framework import status
-from rest_framework.test import APITestCase, APIClient
+from unittest.mock import patch
 
-from apps.parks.models import Park, ParkPhoto
+from rest_framework import status
+from rest_framework.test import APIClient
+
+from apps.parks.models import Park
 from tests.factories import (
-    UserFactory,
+    CompanyFactory,
+    ParkFactory,
     StaffUserFactory,
     SuperUserFactory,
-    ParkFactory,
-    CompanyFactory,
+    UserFactory,
 )
 from tests.test_utils import EnhancedAPITestCase
 
@@ -471,7 +469,7 @@ class TestParkAPIQueryOptimization(EnhancedAPITestCase):
     def test__park_list__uses_select_related(self):
         """Test that park list uses select_related for optimization."""
         # Create multiple parks
-        for i in range(5):
+        for _i in range(5):
             ParkFactory(operator=self.operator)
 
         url = '/api/v1/parks/hybrid/'