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

backend/apps/moderation/serializers.py

@@ -10,18 +10,19 @@ This module contains DRF serializers for the moderation system, including:
 All serializers include comprehensive validation and nested relationships.
 """
 
-from rest_framework import serializers
+from datetime import timedelta
+
 from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.models import ContentType
 from django.utils import timezone
-from datetime import timedelta
+from rest_framework import serializers
 
 from .models import (
-    ModerationReport,
-    ModerationQueue,
-    ModerationAction,
     BulkOperation,
     EditSubmission,
+    ModerationAction,
+    ModerationQueue,
+    ModerationReport,
     PhotoSubmission,
 )
 
@@ -274,7 +275,7 @@ class ModerationReportSerializer(serializers.ModelSerializer):
 
         # Define SLA hours by priority
         sla_hours = {"URGENT": 2, "HIGH": 8, "MEDIUM": 24, "LOW": 72}
-        
+
         if obj.priority in sla_hours:
             threshold = sla_hours[obj.priority]
         else:
@@ -375,11 +376,10 @@ class UpdateModerationReportSerializer(serializers.ModelSerializer):
 
     def validate_status(self, value):
         """Validate status transitions."""
-        if self.instance and self.instance.status == "RESOLVED":
-            if value != "RESOLVED":
-                raise serializers.ValidationError(
-                    "Cannot change status of resolved report"
-                )
+        if self.instance and self.instance.status == "RESOLVED" and value != "RESOLVED":
+            raise serializers.ValidationError(
+                "Cannot change status of resolved report"
+            )
         return value
 
     def update(self, instance, validated_data):
@@ -935,7 +935,7 @@ class PhotoSubmissionSerializer(serializers.ModelSerializer):
         source="content_type.model", read_only=True
     )
     photo_url = serializers.SerializerMethodField()
-    
+
     # UI Metadata
     status_display = serializers.CharField(source="get_status_display", read_only=True)
     status_color = serializers.SerializerMethodField()