feat: 100% async - native async serializers (adata/asave/acreate), async cache (redis.asyncio), view call-site migration

chat/views.py

@@ -292,7 +292,7 @@ class ConversationListView(APIView):
         conversations = [p.conversation async for p in participations]
         serializer = ConversationSerializer(conversations, many=True, context={'request': request})
         # 兜底：ConversationSerializer 的 SerializerMethodField 内部有同步 ORM 查询
-        data = await sync_to_async(lambda: serializer.data)()
+        data = await serializer.adata
         return create_standardized_response(data=data, code=ResponseCode.SUCCESS)
 
     @swagger_auto_schema(
@@ -334,7 +334,7 @@ class ConversationListView(APIView):
 
         serializer = ConversationSerializer(conversation, context={'request': request})
         # 兜底：ConversationSerializer 的 SerializerMethodField 内部有同步 ORM 查询
-        data = await sync_to_async(lambda: serializer.data)()
+        data = await serializer.adata
         return create_standardized_response(data=data, code=ResponseCode.SUCCESS, status_code=status.HTTP_201_CREATED)
 
 
@@ -372,7 +372,7 @@ class ConversationMessageView(APIView):
 
         serializer = ChatMessageSerializer(page_messages, many=True, context={'request': request})
         # 兜底：'conversation' 外键未预加载，serializer 取值会触发同步 ORM
-        data = await sync_to_async(lambda: serializer.data)()
+        data = await serializer.adata
         return create_standardized_response(data={
             'results': data,
             'total': total,