feat(chat): 聊天列表新增未读消息总数

core/routers/chat/schema.py

@@ -4,12 +4,11 @@
 # @Software : PyCharm
 # @Author : xingc
 # @Desc :
-from datetime import datetime
 from typing import Literal, Optional, List
 
 from pydantic import BaseModel, conint, UUID4
 
-from core.base.schema import MessageType
+from core.base.schema import MessageType, Paginated
 from core.routers.user.schema import LiteUser
 
 
@@ -32,6 +31,10 @@ class PreviewMessage(BaseModel):
     content: str
 
 
+class ChatPaginated(Paginated):
+    unread_messages_total: int
+
+
 class ChatUnreadOut(BaseModel):
     chat_guid: UUID4
     created_at: str