添加用户消息记录接口;

backend/app/models/base.py

@@ -0,0 +1,7 @@
+from pydantic import BaseModel, ConfigDict
+from beanie import Document
+
+class BaseOut(BaseModel):
+    code: int = 200
+    message: str = "ok"
+    result: dict[str, object] | list[object] | None = None