fix: 统一AI生成失败提示

core/backend/apps/ops/serializers.py

@@ -7,6 +7,8 @@ class NotificationSerializer(serializers.ModelSerializer):
     type = serializers.CharField(source="notification_type", read_only=True)
     unread = serializers.SerializerMethodField()
     project_name = serializers.CharField(source="project.name", read_only=True)
+    body = serializers.SerializerMethodField()
+    metadata = serializers.SerializerMethodField()
 
     class Meta:
         model = Notification
@@ -45,3 +47,15 @@ class NotificationSerializer(serializers.ModelSerializer):
 
     def get_unread(self, obj):
         return not obj.is_read
+
+    def get_body(self, obj):
+        """兼容早期 AI 失败通知：不再向普通用户回传嵌入正文的上游原始异常。"""
+        body = obj.body or ""
+        marker = "—— 第三方服务商 API 返回的原始报错 ——"
+        return body.split(marker, 1)[0].strip()
+
+    def get_metadata(self, obj):
+        """旧通知的 api_error 也必须从普通用户 API 中移除。"""
+        metadata = dict(obj.metadata or {})
+        metadata.pop("api_error", None)
+        return metadata