Add product review model, serializer, and API endpoint

Introduces a Review model for product reviews, including rating and comment fields. Adds a public serializer and a ModelViewSet for reviews with search and ordering capabilities. Also updates the frontend API client to use the correct token refresh endpoint and improves FormData handling.

backend/commerce/models.py

@@ -616,4 +616,22 @@ class Invoice(models.Model):
 
         # Save directly to FileField
         self.pdf_file.save(f"{self.invoice_number}.pdf", ContentFile(pdf_bytes))
-        self.save()
+        self.save()
+
+
+class Review(models.Model):
+    product = models.ForeignKey(Product, related_name="reviews", on_delete=models.CASCADE)
+    user = models.ForeignKey(
+        settings.AUTH_USER_MODEL, on_delete=models.CASCADE, related_name="reviews"
+    )
+    
+    rating = models.PositiveIntegerField(
+        validators=[MinValueValidator(1), MaxValueValidator(5)]
+    )
+    comment = models.TextField(blank=True)
+
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+
+    def __str__(self):
+        return f"Review for {self.product.name} by {self.user.username}"

backend/commerce/serializers.py

@@ -2,7 +2,7 @@ from rest_framework import serializers
 
 from thirdparty.stripe.client import StripeClient
 
-from .models import Refund, Order, Invoice
+from .models import Refund, Order, Invoice, Review
 
 
 class RefundCreatePublicSerializer(serializers.Serializer):
@@ -465,3 +465,9 @@ class OrderReadSerializer(serializers.ModelSerializer):
 		return list(obj.discount.values_list("code", flat=True))
 
 
+
+class ReviewSerializerPublic(serializers.Serializer):
+
+	class Meta:
+		model = Review
+		fields = "__all__"

backend/commerce/views.py

@@ -4,8 +4,8 @@ from rest_framework.response import Response
 from rest_framework import status
 import base64
 
-from .models import Refund
-from .serializers import RefundCreatePublicSerializer
+from .models import Refund, Review
+from .serializers import RefundCreatePublicSerializer, ReviewSerializerPublic
 
 
 from django.db import transaction
@@ -414,4 +414,16 @@ class RefundPublicView(APIView):
 				"base64": pdf_b64,
 			},
 		}
-		return Response(resp, status=status.HTTP_201_CREATED)
+		return Response(resp, status=status.HTTP_201_CREATED)
+	
+
+class ReviewPublicViewSet(viewsets.ModelViewSet):
+	queryset = Review.objects.all()
+	serializer_class = ReviewSerializerPublic
+	permission_classes = [permissions.IsAuthenticatedOrReadOnly]
+	filter_backends = [filters.SearchFilter, filters.OrderingFilter]
+	search_fields = ["product__name", "user__username", "comment"]
+	ordering_fields = ["rating", "created_at"]
+	ordering = ["-created_at"]
+
+