fix: query param of api_man

api_man/serializers.py

@@ -67,6 +67,12 @@ class ProductSerializer(BaseSerializer):
         - 如果有图片：返回完整 URL（七牛云 CDN 地址）
         - 如果没有图片：返回 None
         """
+        primary_url_resolver = getattr(obj, 'get_primary_image_url', None)
+        if callable(primary_url_resolver):
+            resolved = primary_url_resolver()
+            if resolved:
+                return resolved
+
         if obj.image:
             request = self.context.get('request')
             if request: