添加全能创作功能

core/backend/apps/common/api.py

@@ -1,4 +1,5 @@
 from rest_framework.exceptions import PermissionDenied
+from rest_framework.renderers import BaseRenderer
 
 
 def get_current_team(user):
@@ -27,3 +28,15 @@ class TeamScopedViewSetMixin:
     def perform_create(self, serializer):
         serializer.save(team=self.get_team(), created_by=self.request.user)
 
+
+
+class ServerSentEventRenderer(BaseRenderer):
+    """让 DRF 内容协商接受 Accept: text/event-stream(否则流式端点直接 406)。
+    实际响应由视图返回 StreamingHttpResponse 直接下发,这个 renderer 只用于通过协商。"""
+
+    media_type = "text/event-stream"
+    format = "event-stream"
+    charset = None
+
+    def render(self, data, accepted_media_type=None, renderer_context=None):
+        return data