Fix/memory interface (#169)

* [changes]《Modify the interface》
1.Remove the "/search/entity_graph" interface
2.Reconstruct the "/updated_end_user/profile" interface
3.Remove the "Update Username" interface
4.Fix the batch query of user association memory configuration

* [changes]《Modify the interface》
1.Remove the "/search/entity_graph" interface
2.Reconstruct the "/updated_end_user/profile" interface
3.Remove the "Update Username" interface
4.Fix the batch query of user association memory configuration

* [fix]Fix the error response type

api/app/schemas/memory_agent_schema.py

@@ -15,7 +15,3 @@ class Write_UserInput(BaseModel):
     messages: list[dict]
     group_id: str
     config_id: Optional[str] = None
-
-class End_User_Information(BaseModel):
-    end_user_name: str  # 这是要更新的用户名
-    id: str  # 宿主ID，用于匹配条件